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PROPOSED STANDARD
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Network Working Group                                          D. RaftusRequest for Comments: 4546                        ATI Technologies, Inc.Obsoletes:2670                                               E. CardonaCategory: Standards Track                                      CableLabs                                                               June 2006Radio Frequency (RF) Interface Management Information Basefor Data over Cable Service Interface Specifications (DOCSIS) 2.0Compliant RF InterfacesStatus of This Memo   This document specifies an Internet standards track protocol for the   Internet community, and requests discussion and suggestions for   improvements.  Please refer to the current edition of the "Internet   Official Protocol Standards" (STD 1) for the standardization state   and status of this protocol.  Distribution of this memo is unlimited.   This document revises and obsoletesRFC 2670.  Please seeSection 5.3   for a description of the changes fromRFC 2670.Copyright Notice   Copyright (C) The Internet Society (2006).Abstract   This memo defines a portion of the Management Information Base (MIB)   for use with network management protocols in the Internet community.   In particular, it defines a set of managed objects for Simple Network   Management Protocol (SNMP) based management of the Radio Frequency   (RF) interfaces for systems compliant with the Data Over Cable   Service Interface Specifications (DOCSIS).Table of Contents1. The Internet-Standard Management Framework ......................22. Glossary ........................................................32.1. Baseline Privacy ...........................................32.2. CATV .......................................................32.3. Channel ....................................................32.4. CM or Cable Modem ..........................................32.5. CMTS or Cable Modem Termination System .....................32.6. Codeword ...................................................42.7. Data Packet ................................................42.8. dBmV .......................................................42.9. DOCSIS .....................................................4Raftus & Cardona            Standards Track                     [Page 1]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20062.9.1. DOCSIS 1.0 ..........................................42.9.2. DOCSIS 1.1 ..........................................42.9.3. DOCSIS 2.0 ..........................................42.10. Downstream ................................................52.11. Euro-DOCSIS ...............................................52.12. Head-end ..................................................52.13. MAC Packet ................................................52.14. MCNS ......................................................52.15. Mini-slot .................................................52.16. QPSK (Quadrature Phase Shift Keying) ......................52.17. QAM (Quadrature Amplitude Modulation) .....................52.18. RF ........................................................52.19. Symbol-times ..............................................52.20. Upstream ..................................................63. Overview ........................................................63.1. Textual Conventions ........................................63.1.1. Textual Conventions inRFC 2670 .....................63.1.2. Textual Conventions inRFC 4546 .....................63.2. Structure of the MIB .......................................63.2.1. docsIfBaseObjects ...................................73.2.2. docsIfCmObjects .....................................73.2.3. docsIfCmtsObjects ...................................83.2.4. Relationship to the Interfaces MIB Module ...........83.2.5. Offline Upstream Parameters Handling ...............224. Definitions ....................................................245. Revision History ..............................................1345.1. Scope ....................................................1345.2. Extension ................................................1346. Security Considerations .......................................1347. Management Interoperability of DOCSIS 1.0, 1.1, and 2.0 .......1368. References ....................................................1368.1. Normative References .....................................1368.2. Informative References ...................................1371.  The Internet-Standard Management Framework   For a detailed overview of the documents that describe the current   Internet-Standard Management Framework, please refer tosection 7 of   RFC 3410 [RFC3410].   Managed objects are accessed via a virtual information store, termed   the Management Information Base or MIB.  MIB objects are generally   accessed through the Simple Network Management Protocol (SNMP).   Objects in the MIB are defined using the mechanisms defined in the   Structure of Management Information (SMI).  This memo specifies a MIB   module that is compliant to the SMIv2, which is described in STD 58,RFC 2578 [RFC2578], STD 58,RFC 2579 [RFC2579] STD 58,RFC 2580   [RFC2580].Raftus & Cardona            Standards Track                     [Page 2]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20062.  Glossary   The terms in this document are derived either from normal cable   system usage, or from the documents associated with the Data Over   Cable Service Interface Specification process.2.1.  Baseline Privacy   Security interface specification, designed for DOCSIS-compliant cable   data systems, that ensures device authentication data confidentiality   in the CATV plant.  See [BPI] and [BPIPLUS].2.2.  CATV   Originally "Community Antenna Television", it now refers to any cable   or hybrid fiber and cable system used to deliver video signals to a   community.2.3.  Channel   A specific frequency allocation with an RF medium, specified by   channel width in Hertz (cycles per second) and by center frequency.   Within the US Cable Systems, upstream channels are generally   allocated from the 5-42MHz range while downstream channels are   generally allocated from the 50-750MHz range, depending on the   capabilities of the given system.  The typical broadcast channel   width in the US is 6MHz.  Upstream channel widths for DOCSIS vary.   For European cable systems, upstream channels vary by country.  The   upper edge of upstream channel allocations varies between 25 MHz to   65 MHz, and the lower edge of downstream channel allocations varies   between 47 MHz and 87.5 MHz.  The typical broadcast channel width in   Europe is 8MHz.  The actual parameters are of concern to systems   deploying Euro-DOCSIS technology.   The downstream channels conform to the requirements of ITU-T   Recommendation J.83 [ITU-T_J.83]2.4.  CM or Cable Modem   A CM acts as a "slave" station in a DOCSIS-compliant cable data   system.2.5.  CMTS or Cable Modem Termination System   A generic term covering a cable bridge or cable router in a head-end.   A CMTS acts as the master station in a DOCSIS-compliant cable data   system.  It is the only station that transmits downstream, and itRaftus & Cardona            Standards Track                     [Page 3]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   controls the scheduling of upstream transmissions by its associated   CMs.2.6.  Codeword   A characteristic of the Forward Error Correction scheme, used above   the RF media layer.   See "Data-Over-Cable Service Interface Specifications: Radio   Frequency Interface Specification SP-RFIv2.0-I10-051209".2.7.  Data Packet   The payload portion of the MAC Packet.2.8.  dBmV   A measure of RF signal voltage amplitude, whose power level is   determined by the characteristic impedance.  A zero dB signal power   is equivalent to 48.75 dBmV signal amplitude in a 75 Ohm system.2.9.  DOCSIS   "Data Over Cable Service Interface Specification".  A term referring   to the ITU-T J112 [ITU-T_J.112] Annex B standard for cable modem   systems.2.9.1.  DOCSIS 1.0   Cable modem systems that are CM/CMTS compliant to requirements in   [RFI1.0].  A common reference to DOCSIS 1.0 in this document is the   upstream channel queuing mechanism, known as Class of Service (COS).2.9.2.  DOCSIS 1.1   Cable modem systems that are CM/CMTS compliant to requirements in   [ITU-T_J.112].  DOCSIS 1.1 references in this document are in part   associated with the upstream and downstream Quality of Service (QOS).   The term DOCSIS 1.x is used in this document to refer to both DOCSIS   1.0 and DOCSIS 1.1.2.9.3.  DOCSIS 2.0   Cable modem systems that are CM/CMTS compliant to requirements in   [ITU-T_J.122].  DOCSIS 2.0 corresponds to the second generation of   radio-frequency interface specifications of DOCSIS.Raftus & Cardona            Standards Track                     [Page 4]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20062.10.  Downstream   The direction from the head-end towards the subscriber.2.11.  Euro-DOCSIS   Cable modem systems CM/CMTS that conform to the European spectrum   lineup and are compliant to requirements of Annex F in [ITU-T_J.122].2.12.  Head-end   The origination point in most cable systems of the subscriber video   signals.  Generally also the location of the CMTS equipment.2.13.  MAC Packet   A DOCSIS PDU.2.14.  MCNS   "Multimedia Cable Network System".  Generally replaced in usage by   DOCSIS.2.15.  Mini-slot   In general, an interval of time that is allocated by the CMTS to a   given CM for that CM to transmit in an upstream direction.  See   [ITU-T_J.122]2.16.  QPSK (Quadrature Phase Shift Keying)   A particular modulation scheme on an RF medium.  See [Proakis00].2.17.  QAM (Quadrature Amplitude Modulation)   A particular modulation scheme on RF medium.  Usually expressed with   a number indicating the size of the modulation constellation (e.g.,   16 QAM).  See [Proakis00].2.18.  RF   Radio Frequency.2.19.  Symbol-times   A characteristic of the RF modulation scheme.  See [ITU-T_J.122].Raftus & Cardona            Standards Track                     [Page 5]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20062.20.  Upstream   The direction from the subscriber towards the head-end.3.  Overview   This MIB module provides a set of objects required for the management   of DOCSIS-compliant Cable Modem (CM) and Cable Modem Termination   System (CMTS) RF interfaces.  The specification is derived in part   from the parameters and protocols described in [ITU-T_J.122].   In this document, the key words "MUST", "MUST NOT", "REQUIRED",   "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY",   and "OPTIONAL" are to be interpreted as described in [RFC2119].3.1.  Textual Conventions   This MIB module defines new textual conventions for CM and CMTS   indications of DOCSIS 2.0 RFI capabilities, configuration, usage, and   backward compatible modes of operation, as defined in [RFI2.0].  With   the same purpose, there are some textual conventions that represent   capabilities and modes of operation of [RFI1.1] that are not covered   byRFC 2670, and are managed proprietarily in the DOCSIS OSSI 1.1   specification [OSSI1.1].3.1.1.  Textual Conventions inRFC 2670RFC 2670 defined two textual conventions, TenthdBmV and TenthdB,   which are power measurement representations.3.1.2.  Textual Conventions inRFC 4546   This MIB module defines the textual convention DocsisUpstreamType to   represent the DOCSIS 1.0 [RFI1.0] and DOCSIS 2.0 [RFI2.0] upstream   burst modulation profiles types.   This MIB module defines the textual conventions DocsisVersion and   DocsisQosVersion to represent the DOCSIS 1.0 [RFI1.0] and DOCSIS 1.1   [RFI1.1] COS/QOS capabilities and modes of operation.3.2.  Structure of the MIB   This MIB module is structured as three groups:   o  Management information pertinent to both Cable Modem (CM) and      Cable Modem Termination System (CMTS) (docsIfBaseObjects).Raftus & Cardona            Standards Track                     [Page 6]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   o  Management information pertinent to Cable Modem only      (docsIfCmObjects).   o  Management information pertinent to Cable Modem Termination System      only (docsIfCmtsObjects).   Tables within each of these groups cover different functions; e.g.,   upstream queue services, channel characteristics, MAC layer   management, etc.  Rows created automatically (e.g., by the device   according to the hardware configuration) may and generally will have   a mixture of configuration and status objects within them.  Rows that   are meant to be created by the management station are generally   restricted to configuration (read-create) objects.3.2.1.  docsIfBaseObjects   docsIfDownstreamChannelTable - This table describes the existing   downstream channels for a CMTS and the received downstream channel   for a CM.   docsIfUpstreamChannelTable - This table describes the existing   upstream channels for a CMTS and the current upstream transmission   channel for a CM.   docsIfQosProfileTable - This table describes the valid Quality of   Service profiles for the cable data system.   docsIfSignalQualityTable - This table is used to monitor RF signal   quality characteristics of received signals.   docsIfDocsisBaseCapability - This object is used to indicate the   highest level of DOCSIS version a cable device can support.3.2.2.  docsIfCmObjects   docsIfCmMacTable - This table is used to monitor the DOCSIS MAC   interface and can be considered an extension to the ifEntry.   docsIfCmStatusTable - This table maintains a number of status objects   and counters for cable modems.  There is a comparable table at the   CMTS, docsIfCmtsCmStatusTable, which maintains similar counters from   the CMTS point of view.   docsIfCmServiceTable - This table describes the upstream service   queues available at this CM.  There is a comparable table at the   CMTS, docsIfCmtsServiceEntry, which describes the service queues from   the point of view of the CMTS.Raftus & Cardona            Standards Track                     [Page 7]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20063.2.3.  docsIfCmtsObjects   docsIfCmtsMacTable - Describes the attributes of each CMTS MAC   interface.   docsIfCmtsStatusTable - This table provides a set of aggregated   counters that roll-up values and events that occur on the underlying   sub-interfaces.   docsIfCmtsCmStatusTable - This table is used to hold information   about known (i.e., ranging, registered, and/or previously online)   cable modems on the system serviced by this CMTS.   docsIfCmtsServiceTable - This table provides access to the   information related to upstream service queues.   docsIfCmtsModulationTable - This table allows control over the   modulation profiles for RF channels associated with this CMTS.   docsIfCmtsMacToCmTable - This table allows fast access into the   docsIfCmtsCmTable via a MAC address (of the CM) interface.   docsIfCmtsChannelUtilizationTable - This table provides statistical   load usage data for attached upstream and downstream physical   channels.   docsIfCmtsDownChannelCounterTable - This table provides statistical   data for attached downstream channels, appropriate as input for load   usage calculations.   docsIfCmtsUpChannelCounterTable - This table provides statistical   data for attached upstream channels, appropriate as input for load   usage calculations.3.2.4.  Relationship to the Interfaces MIB Module   This section clarifies the relationship of this MIB module to the   Interfaces MIB [RFC2863].  Several areas of correlation are addressed   in the following subsections.  The implementer is referred to the   Interfaces MIB document in order to understand the general intent of   these areas.3.2.4.1.  Layering Model   An instance of ifEntry exists for each RF downstream interface, for   each RF upstream interface, for each upstream logical Channel, and   for each RF MAC layer.Raftus & Cardona            Standards Track                     [Page 8]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   The ifStackTable [RFC2863] MUST be implemented to identify the   relationships among sub-interfaces.   The following example illustrates a CMTS MAC interface with one   downstream and two upstream interfaces.                                 | <== to network layer           +------------------ --+-------------------------------+           |                     RF MAC                          |           +--+------------------+------------------------+------+              |                  |                        |      +-------+-----+     +------+------+          +------+------+      | Downstream1 |     |  Upstream1  |          |  Upstream2  |      |             |     |             |          |             |      +-------------+     ++-----------++          ++-----------++                           |           |            |           |                      +----+----+ +----+----+  +----+----+ +----+----+                      |  Ch-1   | |  Ch-2   |  |  Ch-1   | |  Ch-2   |                      |(A/TDMA) | |(S-CDMA) |  |(A/TDMA) | |(S-CDMA) |                      +---------+ +---------+  +---------+ +---------+                                 Figure 1   As can be seen from this example, the RF MAC interface is layered on   top of the downstream and upstream interfaces, and the RF upstream   interface is layered on top of an upstream logical channel.   In this example, the assignment of index values could be as follows:      ifIndex       ifType                     Description         2    docsCableMaclayer(127)           CATV MAC Layer         3    docsCableDownstream(128)         CATV Downstream interface         4    docsCableUpstream(129)           CATV Upstream interface         5    docsCableUpstream(129)           CATV Upstream interface         6    docsCableUpstreamChannel(205)    CATV Upstream Channel         7    docsCableUpstreamChannel(205)    CATV Upstream Channel         8    docsCableUpstreamChannel(205)    CATV Upstream Channel         9    docsCableUpstreamChannel(205)    CATV Upstream Channel                                 Figure 2Raftus & Cardona            Standards Track                     [Page 9]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   The corresponding ifStack entries would then be:              | IfStackHigherLayer | ifStackLowerLayer |              |         0          |         2         |              |         2          |         3         |              |         2          |         4         |              |         2          |         5         |              |         4          |         6         |              |         4          |         7         |              |         5          |         8         |              |         5          |         9         |              |         3          |         0         |              |         6          |         0         |              |         7          |         0         |              |         8          |         0         |              |         9          |         0         |                                 Figure 3   The same interface model can also be used in Telephony or Telco   Return systems.  A pure Telco Return system (Cable Modem, as well as   Cable Modem Termination System) would not have upstream cable   channels, only downstream cable channels.  Systems supporting both   Telco Return and cable upstream channels can use the above model   without modification.   Telco Return upstream channel(s) management is outside the scope of   this document.3.2.4.2.  Virtual Circuits   This medium does not support virtual circuits, and this area is not   applicable to this MIB module.3.2.4.3.  ifTestTable   The ifTestTable is optional for DOCSIS CM/CMTS implementations, but   is not specifically influenced by the RF MIB.3.2.4.4.  ifRcvAddressTable   The ifRcvAddressTable is optional for DOCSIS CM/CMTS implementations,   but is not specifically influenced by the RF MIB.Raftus & Cardona            Standards Track                    [Page 10]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20063.2.4.5.  ifEntry   This section documents only the differences from the requirements   specified in the Interfaces MIB module.  See that MIB module for   columns omitted from the descriptions below.3.2.4.5.1.  ifEntry for Downstream Interfaces   The ifEntry for downstream interfaces supports the   ifGeneralInformationGroup and the ifPacketGroup of the Interfaces MIB   module.  This is an output-only interface at the CMTS, and all input   status counters -- ifIn* -- will return zero.  This is an input-only   interface at the CM, and all output status counters -- ifOut* -- will   return zero.3.2.4.5.1.1.  ifEntry for Downstream Interfaces in Cable Modem              Termination System   ifTable           Comments   ==============    ===========================================   ifIndex           Each CATV Downstream interface is represented                     by an ifEntry.   ifType            The IANA value of docsCableDownstream(128).   ifSpeed           Return the speed of this downstream channel.                     The returned value is the raw bandwidth in bits/s                     of this interface.  This is the symbol rate                     multiplied with the number of bits per symbol.   ifHighSpeed       Return the speed of this downstream channel.                     The returned value is the raw bandwidth in                     megabits/s of this interface.  This is the symbol                     rate multiplied with the number of bits per                     symbol.   ifPhysAddress     Return the zero-length OCTET STRING.   ifAdminStatus     The administrative status of this interface.   ifOperStatus      The current operational status of this interface.   ifMtu             The size of the largest frame that can be                     sent on this interface, specified in octets.                     The value includes the length of the MAC header.   ifInOctets   ifHCInOctets      Return zero.Raftus & Cardona            Standards Track                    [Page 11]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifInUcastPkts   ifHCInUcastPkts   Return zero.   ifInMulticastPkts   ifHCInMulticastPkts                     Return zero.   ifInBroadcastPkts   ifHCInBroadcastPkts                     Return zero.   ifInDiscards      Return zero.   ifInErrors        Return zero.   ifInUnknownProtos Return zero.   ifOutOctets   ifHCOutOctets     The total number of octets transmitted on this                     interface.  This includes MAC packets as well as                     data packets, and includes the length of the MAC                     header.   ifOutUcastPkts   ifHCOutUcastPkts  The number of unicast packets transmitted on this                     interface.  This includes MAC packets as well as                     data packets.   ifOutMulticastPkts   ifHCOutMulticastPkts                     Return the number of multicast packets                     transmitted on this interface.                     This includes MAC packets as well as data                     packets.   ifOutBroadcastPkts   ifHCOutBroadcastPkts                     Return the number of broadcast packets transmitted                     on this interface.  This includes MAC packets as                     well as data packets.   ifOutDiscards     The total number of outbound packets which                     were discarded.  Possible reasons are:                     buffer shortage.   ifOutErrors       The number of packets that could not be                     transmitted due to errors.   ifPromiscuousMode Return false.Raftus & Cardona            Standards Track                    [Page 12]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20063.2.4.5.1.2.  ifEntry for Downstream Interfaces in Cable Modem   ifTable           Comments   ==============    ===========================================   ifIndex           Each CATV Downstream interface is represented                     by an ifEntry.   ifType            The IANA value of docsCableDownstream(128).   ifSpeed           Return the speed of this downstream channel.                     The returned value the raw bandwidth in bits/s                     of this interface.  This is the symbol rate                     multiplied with the number of bits per symbol.   ifHighSpeed       Return the speed of this downstream channel.                     The returned value the raw bandwidth in megabits/s                     of this interface.  This is the symbol rate                     multiplied with the number of bits per symbol.   ifPhysAddress     Return the zero-length OCTET STRING.   ifAdminStatus     The administrative status of this interface.   ifOperStatus      The current operational status of this interface.   ifMtu             The size of the largest frame that can be                     received from this interface, specified in octets.                     The value includes the length of the MAC header.   ifInOctets   ifHCInOctets      The total number of octets received on this                     interface.  This includes data packets as well as                     MAC packets, and includes the length of the                     MAC header.   ifInUcastPkts   ifHCInUcastPkts   The number of unicast packets received on this                     interface.  This includes data packets as well as                     MAC packets.   ifInMulticastPkts   ifHCInMulticastPkts                     Return the number of multicast packets received                     on this interface.  This includes data packets as                     well as MAC packets.Raftus & Cardona            Standards Track                    [Page 13]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifInBroadcastPkts   ifHCInBroadcastPkts                     Return the number of broadcast packets received                     on this interface.  This includes data packets                     as well as MAC packets.   ifInDiscards      The total number of received packets that have                     been discarded.                     The possible reasons are: buffer shortage.   ifInErrors        The number of inbound packets that contained                     errors preventing them from being deliverable                     to higher layers.                     Possible reasons are: MAC FCS error.   ifInUnknownProtos The number of frames with an unknown packet type.                     These are MAC frames with an unknown packet type.   ifOutOctets       Return zero.   ifHCOutOctets   ifOutUcastPkts    Return zero.   ifHCOutUcastPkts   ifOutMulticastPkts   ifHCOutMulticastPkts                     Return zero.   ifOutBroadcastPkts   ifHCOutBroadcastPkts                     Return zero.   ifOutDiscards     Return zero.   ifOutErrors       Return zero.   ifPromiscuousMode Refer to the Interfaces MIB.3.2.4.5.2.  ifEntry for Upstream Interfaces   Each supported interface of the type docsCableUpstream(129) must have   a corresponding ifEntry.  The ifEntry for upstream interfaces   supports the ifGeneralInformationGroup and the ifPacketGroup of the   Interfaces MIB.  This is an input-only interface at the CMTS, and all   output status counters -- ifOut* -- will return zero.  This is an   output only interface at the CM, and all input status counters --   ifIn* -- will return zero.Raftus & Cardona            Standards Track                    [Page 14]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20063.2.4.5.2.1.  ifEntry for Upstream Interfaces in Cable Modem Termination              System   ifTable           Comments   ==============    ===========================================   ifIndex           Each RF Cable Upstream interface is represented                     by an ifEntry.   ifType            The IANA value of docsCableUpstream (129).   ifSpeed           Return the maximum channel throughput (not payload                     throughput) supported by the interface.                     The maximum throughput is calculated for the case                     where upstream channels are configured to maximize                     interface throughput.   ifHighSpeed       Return the maximum channel throughput (not payload                     throughput) supported by the interface.                     The maximum throughput is calculated for the case                     where upstream channels are configured to maximize                     interface throughput.  Units for this object are                     (1/1 000 000) * IfSpeed.   ifPhysAddress     Return the zero-length OCTET STRING.   ifAdminStatus     The administrative status of this interface.   ifOperStatus      The current operational status of this interface.                     This reflects the total status of all the channels                     under this interface.  So if at least one channel                     has a physical connection this interface has                     connection.   ifMtu             The size of the largest frame that can be                     transmitted on this interface, specified in                     octets.  The value includes the length of the MAC                     header.  This is the maximum of all the ifMtu of                     all the channels under this interface.   ifInOctets   ifHCInOctets      The total (sum) number of octets received on all                     the upstream channels under this                     interface.  This includes data packets as well as                     MAC packets, and includes the length of the                     MAC header.Raftus & Cardona            Standards Track                    [Page 15]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifInUcastPkts   ifHCInUcastPkts   The total number of unicast packets received on                     all the upstream channels under this                     interface.  This includes data packets as well as                     MAC packets.   ifInMulticastPkts   ifHCInMulticastPkts                     Return the total number of multicast packets                     received on all the upstream channels under this                     interface.  This includes data packets as well as                     MAC layer packets.   ifInBroadcastPkts   ifHCInBroadcastPkts                     Return the total number of broadcast packets                     received on all the upstream channels under this                     interface.  This includes data packets as well as                     MAC packets.   ifInDiscards      The total number of received packets that have                     been discarded on all the upstream channels under                     this interface.                     The possible reasons are: buffer shortage.   ifInErrors        The total number of inbound packets that contained                     errors preventing them from being deliverable                     to higher layers.                     Possible reasons are: MAC FCS error.   ifInUnknownProtos The total number of frames with an unknown packet                     type.  These are MAC frames with an unknown packet                     type.   ifOutOctets       Return zero.   ifHCOutOctets   ifOutUcastPkts    Return zero.   ifHCOutOctets   ifOutMulticastPkts   ifHCOutMulticastPkts                     Return zero.   ifOutBroadcastPkts   ifHCOutBroadcastPkts                     Return zero.Raftus & Cardona            Standards Track                    [Page 16]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifOutDiscards     Return zero.   ifOutErrors       Return zero.3.2.4.5.2.2.  ifEntry for Upstream Interfaces in Cable Modem   ifTable           Comments   ==============    ===========================================   ifIndex           Each RF Cable Upstream interface is represented                     by an ifEntry.   ifType            The IANA value of docsCableUpstream (129).   ifSpeed           Return the speed of this upstream interface.                     The returned value is the raw bandwidth                     in bits/s of this interface.   ifHighSpeed       Return the speed of this upstream interface.                     The returned value is the raw bandwidth                     in megabits/s of this interface.   ifPhysAddress     Return the zero-length OCTET STRING.   ifAdminStatus     The administrative status of this interface.   ifOperStatus      The current operational status of this interface.   ifMtu             The size of the largest frame that can be                     transmitted on this interface, specified in                     octets.  The value includes the length of the MAC                     header.   ifInOctets        Return zero.   ifHCInOctets   ifInUcastPkts     Return zero.   ifHCInUcastPkts   ifInMulticastPkts   ifHCInMulticastPkts                     Return zero.   ifInBroadcastPkts   ifHCInBroadcastPkts                     Return zero.   ifInDiscards      Return zero.Raftus & Cardona            Standards Track                    [Page 17]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifInErrors        Return zero.   ifInUnknownProtos Return zero.   ifOutOctets   ifHCOutOctets     The total number of octets transmitted on this                     interface.  This includes MAC packets as well as                     data packets, and includes the length of the MAC                     header.   ifOutUcastPkts   ifHCOutUcastPkts  The number of unicast packets transmitted on this                     interface.  This includes MAC packets as well as                     data packets.   ifOutMulticastPkts   ifHCOutMulticastPkts                     Return the number of multicast packets transmitted                     on this interface.                     This includes MAC packets as well as data packets.   ifOutBroadcastPkts   ifHCOutBroadcastPkts                     Return the number of broadcast packets transmitted                     on this interface.                     This includes MAC packets as well as data packets.   ifOutDiscards     The total number of outbound packets that                     were discarded.  Possible reasons are:                     buffer shortage.   ifOutErrors       The number of packets that could not be                     transmitted due to errors.   ifPromiscuousMode Return false.3.2.4.5.3.  ifEntry for Upstream Channels   Each supported channel of the type docsCableUpstreamChannel(205) must   have a corresponding ifEntry.   The ifEntry for upstream channels supports the   ifGeneralInformationGroup and the ifPacketGroup of the Interfaces   MIB.  This is an input only interface at the CMTS and all output   status counters -- ifOut* -- will return zero.  DOCSIS CMs are not   required to support logical upstream channels.Raftus & Cardona            Standards Track                    [Page 18]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20063.2.4.5.3.1.  ifEntry for Upstream Channels in Cable Modem Termination              System   ifTable           Comments   ==============    ===========================================   ifIndex           Each RF Cable Upstream channel is represented                     by an ifEntry.   ifType            The IANA value of docsCableUpstreamChannel (205).   ifSpeed           Return the speed of this upstream channel.                     The returned value is the raw bandwidth                     in bits/s of this channel.   ifHighSpeed       Return the speed of this upstream channel.                     The returned value is the raw bandwidth                     in megabits/s of this channel.   ifPhysAddress     Return the zero-length OCTET STRING.   ifAdminStatus     The administrative status of this interface.   ifOperStatus      The current operational status of this interface.   ifMtu             The size of the largest frame that can be                     received on this interface, specified in octets.                     The value includes the length of the MAC header.   ifInOctets        The total number of octets received on this                     interface.  This includes data packets as well as                     MAC packets, and includes the length of the                     MAC header.   ifInUcastPkts   ifHCInUcastPkts                     The number of unicast packets received on this                     interface.  This includes data packets as well as                     MAC packets.   ifInMulticastPkts   ifHCInMulticastPkts                     Return the number of multicast packets received                     on this interface.  This includes data packets as                     well as MAC layer packets.Raftus & Cardona            Standards Track                    [Page 19]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifInBroadcastPkts   ifHCInBroadcastPkts                     Return the number of broadcast packets received                     on this interface.  This includes data packets                     as well as MAC packets.   ifInDiscards      The total number of received packets that have                     been discarded.                     The possible reasons are: buffer shortage.   ifInErrors        The number of inbound packets that contained                     errors preventing them from being deliverable                     to higher layers.                     Possible reasons are: MAC FCS error.   ifInUnknownProtos The number of frames with an unknown packet type.                     These are MAC frames with an unknown packet type.   ifOutOctets       Return zero.   ifHCOutOctets   ifOutUcastPkts    Return zero.   ifHCOutUcastPkts   ifOutMulticastPkts   ifHCOutMulticastPkts                     Return zero.   ifOutBroadcastPkts   ifHCOutBroadcastPkts                     Return zero.   ifOutDiscards     Return zero.   ifOutErrors       Return zero.3.2.4.5.4.  ifEntry for the MAC Layer   The ifEntry for the MAC Layer supports the ifGeneralInformationGroup   and the ifPacketGroup of the Interfaces MIB.  This interface provides   an aggregate view of status for the lower level downstream and   upstream interfaces.   ifTable           Comments   ==============    ===========================================   ifIndex           Each RF Cable MAC layer entity is represented                     by an ifEntry.Raftus & Cardona            Standards Track                    [Page 20]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifType            The IANA value of docsCableMaclayer(127).   ifSpeed           Return zero.   ifPhysAddress     Return the physical address of this interface.   ifAdminStatus     The administrative status of this interface.   ifOperStatus      The current operational status of the MAC                     layer interface.   ifHighSpeed       Return zero.   ifMtu             Return 1500.   ifInOctets   ifHCInOctets      The total number of data octets received on this                     interface, targeted for upper protocol layers.   ifInUcastPkts   ifHCInUcastPkts   The number of unicast packets received on this                     interface, targeted for upper protocol layers.   ifInMulticastPkts   ifHCInMulticastPkts                     Return the number of multicast packets received                     on this interface, targeted for upper protocol                     layers.   ifInBroadcastPkts   ifHCInBroadcastPkts                     Return the number of broadcast packets received                     on this interface, targeted for upper protocol                     layers.   ifInDiscards      The total number of received packets that have                     been discarded.                     The possible reasons are: buffer shortage.   ifInErrors        The number of inbound packets that contained                     errors preventing them from being deliverable                     to higher layers.                     Possible reasons are: data packet FCS error,                     invalid MAC header.   ifInUnknownProtos The number of frames with an unknown packet type.                     This is the number of data packets targeted for                     upper protocol layers with an unknown packet type.Raftus & Cardona            Standards Track                    [Page 21]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   ifOutOctets       The total number of octets, received from upper   ifHCOutOctets     protocol layers and transmitted on this interface.   ifOutUcastPkts   ifHCOutUcastPkts  The number of unicast packets, received from upper                     protocol layers and transmitted on this interface.   ifOutMulticastPkts   ifHCOutMulticastPkts                     Return the number of multicast packets received                     from upper protocol layers and transmitted on this                     interface.   ifOutBroadcastPkts   ifHCOutBroadcastPkts                     Return the number of broadcast packets received                     from upper protocol layers and transmitted on this                     interface.   ifOutDiscards     The total number of outbound packets that                     were discarded.  Possible reasons are:                     buffer shortage.   ifOutErrors       The number of packets that could not be                     transmitted due to errors.   ifPromiscuousMode Refer to the Interfaces MIB.3.2.5.  Offline Upstream Parameters Handling3.2.5.1.  Overview   This section describes the offline configuration of the DOCSIS 2.0   upstream logical interface parameters.  The purpose of this feature   is to guarantee that upstream logical interface parameters (such as   modulation profile, channel type, mini-slot size, and SCDMA   attributes) are consistent prior to committing changes to an active   upstream logical interface.  This mechanism can reduce possible   downtime of the upstream interface by minimizing SNMP SET operations   to in-service upstream interfaces.  This mechanism is supported by   CMTSs and is not applicable to CMs.3.2.5.2.  Operation   This mechanism uses three upstream channel MIB objects defined for   DOCSIS 2.0 CMTS implementations:Raftus & Cardona            Standards Track                    [Page 22]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfUpChannelStatus - The RowStatus object for the creation of   temporary interfaces in the upstream interface table.  A temporary   entry is used to modify, validate, and commit upstream parameters of   a physical interface.  In the CMTS, a physical upstream interface   refers to an upstream logical channel interface.   docsIfUpChannelCloneFrom - This MIB object associates a physical   interface with a temporary interface for the purpose of updating the   upstream parameters of the physical interface.   docsIfUpChannelUpdate - This MIB object is the commit object that   transfers the validated upstream parameters from the temporary   interface to the physical interface.   The offline upstream parameters handling operation is as follows:   o  A temporary interface is created in which docsIfUpChannelStatus is      set to 'createAndWait', which turns the new create entry status to      'notReady'.   o  A SET to docsIfUpChannelCloneFrom in the temporary interface to      the physical interface ifIndex value performs two actions:      *  Creates the association of the physical interface to the         temporary interface.      *  Copies the original upstream parameters from the physical         interface to the temporary interface, which turns its status to         'notInService'.   o  The operator modifies the temporary interface parameters to the      desired values.   o  At this point, a SET to 'active' to the RowStatus of the temporary      interface is successful if all parameters in the temporary      interface are valid for the associated physical interface;      otherwise, the temporary entry remains with status 'notInservice',      and the SET returns the error 'commitFailed'.   o  When the temporary interface status is 'active', a SET to      docsIfUpChannelUpdate to 'true' transfers the temporary interface      parameters values to the physical interface.   o  After completion of the update operations, the temporary interface      is destroyed, setting the docsIfUpChannelStatus to 'destroy'.Raftus & Cardona            Standards Track                    [Page 23]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20063.2.5.3.  Relation of docsIfUpChannelStatus and ifMib   The main purpose of docsIfUpChannelStatus is the creation of   temporary interfaces for offline handling of the configuration of   physical interfaces; it does not manage the creation or control of   physical interfaces.  To maintain a consistent operation and status   report of interfaces, this object does not manage the administrative   and operational status of physical interfaces.4.  Definitions   DOCS-IF-MIB DEFINITIONS ::= BEGIN     IMPORTS        MODULE-IDENTITY,        OBJECT-TYPE,        Unsigned32,        Integer32,        Counter32,        Counter64,        TimeTicks,        IpAddress,        transmission                FROM SNMPv2-SMI        -- [RFC2578]        TEXTUAL-CONVENTION,        MacAddress,        RowStatus,        TruthValue,        TimeInterval,        TimeStamp,        StorageType                FROM SNMPv2-TC         -- [RFC2579]        OBJECT-GROUP,        MODULE-COMPLIANCE                FROM SNMPv2-CONF       -- [RFC2580]        ifIndex, InterfaceIndexOrZero                FROM IF-MIB            -- [RFC2863]        InetAddressType,        InetAddress                FROM INET-ADDRESS-MIB  -- [RFC4001]        IANAifType                FROM IANAifType-MIB;   -- [IANA]   docsIfMib MODULE-IDENTITY        LAST-UPDATED    "200605240000Z" -- May 24, 2006        ORGANIZATION    "IETF IPCDN Working Group"        CONTACT-INFORaftus & Cardona            Standards Track                    [Page 24]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "        David Raftus             Postal: ATI Technologies Inc.                     340 Terry Fox Drive, Suite 202                     Ottawa Ontario                     Canada             Phone:  +1 613 592 1052 ext.222             E-mail: david.raftus@ati.com                     Eduardo Cardona             Postal: Cable Television Laboratories, Inc.                     858 Coal Creek Circle                     Louisville, CO 80027-9750                     U.S.A.             Phone:  Tel:    +1 303 661 9100                     Fax:    +1 303 661 9199             E-mail: e.cardona@cablelabs.com;mibs@cablelabs.com             IETF IPCDN Working Group             General Discussion: ipcdn@ietf.org             Subscribe:http://www.ietf.org/mailman/listinfo/ipcdn             Archive:ftp://ftp.ietf.org/ietf-mail-archive/ipcdn             Co-chairs: Richard Woundy, Richard_Woundy@cable.comcast.com                        Jean-Francois Mule, jf.mule@cablelabs.com"        DESCRIPTION            "This is the MIB Module for DOCSIS 2.0-compliant Radio             Frequency (RF) interfaces in Cable Modems and             Cable Modem Termination Systems.             Copyright (C) The Internet Society (2006).  This             version of this MIB module is part ofRFC 4546; see             the RFC itself for full legal notices."        REVISION        "200605240000Z"        DESCRIPTION            "Revision of the IETF RF MIB module for DOCSIS 2.0.             This version published asRFC 4546.             This MIB module revision includes the following             among others:             Usage of ifType (205) for upstream logical channels.             Addition of downstream and upstream utilization             counters.             Additional statistics per upstream interface.             Upstream channel offline configuration mechanism.             Added MIB support for new DOCSIS 2.0 modulation             attributes.             Euro-DOCSIS downstream interleave values.             Adjustments toRFC 2670 definitions based on             the MIB review guidelines from the IETFRaftus & Cardona            Standards Track                    [Page 25]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Operations and Management Area (OPS)."        REVISION "199908190000Z"        DESCRIPTION            "Initial version, published asRFC 2670.             Modified by Mike St. Johns to fix problems identified by             the first pass of the MIB doctor.  Of special note,             docsIfRangingResp and docsIfCmtsInsertionInterval were             obsoleted and replaced by other objects with the same             functionality, but with more appropriate syntax."        ::= { transmission 127 }   -- Textual Conventions   TenthdBmV ::= TEXTUAL-CONVENTION        DISPLAY-HINT "d-1"        STATUS       current        DESCRIPTION            "This data type represents power levels that are normally             expressed in dBmV.  Units are in tenths of a dBmV;             for example, 5.1 dBmV will be represented as 51."        SYNTAX       Integer32   TenthdB ::= TEXTUAL-CONVENTION        DISPLAY-HINT "d-1"        STATUS       current        DESCRIPTION            "This data type represents power levels that are normally             expressed in dB.  Units are in tenths of a dB;             for example, 5.1 dB will be represented as 51."        SYNTAX       Integer32   DocsisVersion ::= TEXTUAL-CONVENTION       STATUS          current       DESCRIPTION           "Indicates the DOCSIS Radio Frequency specification being            referenced.            'docsis10' indicates DOCSIS 1.0.            'docsis11' indicates DOCSIS 1.1.            'docsis20' indicates DOCSIS 2.0."       SYNTAX        INTEGER {            docsis10 (1),            docsis11 (2),            docsis20 (3)       }   DocsisQosVersion ::= TEXTUAL-CONVENTIONRaftus & Cardona            Standards Track                    [Page 26]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006       STATUS          current       DESCRIPTION           "Indicates the referenced quality-of-service            level.            'docsis10 refers to DOCSIS 1.0 Class of            Service queuing services, and 'docsis11' refers            to DOCSIS 1.1 Quality of Service."       SYNTAX        INTEGER {           docsis10 (1),           docsis11 (2)       }   DocsisUpstreamType ::= TEXTUAL-CONVENTION       STATUS          current       DESCRIPTION            "Indicates the DOCSIS Upstream Channel Type.             'unknown' means information not available.             'tdma' is related to TDMA, Time Division             Multiple Access; 'atdma' is related to A-TDMA,             Advanced Time Division Multiple Access,             'scdma' is related to S-CDMA, Synchronous             Code Division Multiple Access.             'tdmaAndAtdma is related to simultaneous support of             TDMA and A-TDMA modes."       SYNTAX          INTEGER {           unknown(0),           tdma(1),           atdma(2),           scdma(3),           tdmaAndAtdma(4)       }    DocsEqualizerData ::= TEXTUAL-CONVENTION         STATUS       current         DESCRIPTION             "This data type represents the equalizer data              as measured at the receiver interface.              The format of the equalizer follows the structure of the              Transmit Equalization Adjust RNG-RSP TLV of DOCSIS RFI              v2.0 :              1 byte Main tap location 1..(n + m)              1 byte Number of forward taps per symbol              1 byte Number of forward taps: n              1 byte Number of reverse taps: m              Following are the equalizer coefficients:              First, forward taps coefficients:              2 bytes F1 (real),  2 bytes  F1 (imag)Raftus & Cardona            Standards Track                    [Page 27]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006              ...              2 bytes Fn (real),  2 bytes  Fn (imag)              Then, reverse taps coefficients:              2 bytes D1 (real),  2 bytes  D1 (imag)              ...              2 bytes Dm (real),  2 bytes  Dm (imag)              The equalizer coefficients are considered signed 16-bit              integers in the range from -32768 (0x8000) to 32767              (0x7FFF).              DOCSIS specifications require up to a maximum of              64 equalizer taps (n + m); therefore, this object size               can get up 260 bytes (4 + 4x64).              The minimum object size (other than zero) for a t-spaced              tap with a minimum of 8 symbols will be 36 (4 + 4x8)."         REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 8-23."         SYNTAX       OCTET STRING(SIZE (0 | 36..260))   docsIfMibObjects  OBJECT IDENTIFIER ::= { docsIfMib 1 }   docsIfBaseObjects OBJECT IDENTIFIER ::= { docsIfMibObjects 1 }   docsIfCmObjects   OBJECT IDENTIFIER ::= { docsIfMibObjects 2 }   docsIfCmtsObjects OBJECT IDENTIFIER ::= { docsIfMibObjects 3 }   --   -- BASE GROUP   --   --   -- The following table is implemented on both the Cable Modem   -- and the Cable Modem Termination System.  This table is   -- read only for the CM.   --   docsIfDownstreamChannelTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfDownstreamChannelEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "This table describes the attributes of downstream             channels (frequency bands)."        REFERENCERaftus & Cardona            Standards Track                    [Page 28]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-16, and 6-17."        ::= { docsIfBaseObjects 1 }   docsIfDownstreamChannelEntry OBJECT-TYPE        SYNTAX      DocsIfDownstreamChannelEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "An entry provides a list of attributes for a single             downstream channel.             An entry in this table exists for each ifEntry with an             ifType of docsCableDownstream(128)."        INDEX { ifIndex }        ::= { docsIfDownstreamChannelTable 1 }   DocsIfDownstreamChannelEntry ::= SEQUENCE {            docsIfDownChannelId               Integer32,            docsIfDownChannelFrequency        Integer32,            docsIfDownChannelWidth            Integer32,            docsIfDownChannelModulation       INTEGER,            docsIfDownChannelInterleave       INTEGER,            docsIfDownChannelPower            TenthdBmV,            docsIfDownChannelAnnex            INTEGER,            docsIfDownChannelStorageType      StorageType        }   docsIfDownChannelId OBJECT-TYPE        SYNTAX      Integer32 (0..255)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The Cable Modem Termination System identification of the             downstream channel within this particular MAC interface.             if the interface is down, the object returns the most             current value.  If the downstream channel ID is unknown,             this object returns a value of 0."        ::= { docsIfDownstreamChannelEntry 1 }   docsIfDownChannelFrequency OBJECT-TYPE        SYNTAX      Integer32 (0..1000000000)        UNITS       "hertz"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The center of the downstream frequency associated with             this channel.  This object will return the current tunerRaftus & Cardona            Standards Track                    [Page 29]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             frequency.  If a CMTS provides IF output, this object             will return 0, unless this CMTS is in control of the             final downstream frequency.  See the associated             compliance object for a description of valid frequencies             that may be written to this object."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.3.3."        ::= { docsIfDownstreamChannelEntry 2 }   docsIfDownChannelWidth OBJECT-TYPE        SYNTAX      Integer32 (0..16000000)        UNITS       "hertz"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The bandwidth of this downstream channel.  Most             implementations are expected to support a channel width             of 6 MHz (North America) and/or 8 MHz (Europe).  See the             associated compliance object for a description of the             valid channel widths for this object."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 6-17."        ::= { docsIfDownstreamChannelEntry 3 }   docsIfDownChannelModulation OBJECT-TYPE        SYNTAX      INTEGER {            unknown(1),            other(2),            qam64(3),            qam256(4)        }        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The modulation type associated with this downstream             channel.  If the interface is down, this object either             returns the configured value (CMTS), the most current             value (CM), or the value of unknown(1).  See the             associated conformance object for write conditions and             limitations.  See the reference for specifics on the             modulation profiles implied by qam64 and qam256."        REFERENCE            "Data-Over-Cable Service Interface Specifications: RadioRaftus & Cardona            Standards Track                    [Page 30]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 6-17."        ::= { docsIfDownstreamChannelEntry 4 }   docsIfDownChannelInterleave OBJECT-TYPE        SYNTAX      INTEGER {            unknown(1),            other(2),            taps8Increment16(3),            taps16Increment8(4),            taps32Increment4(5),            taps64Increment2(6),            taps128Increment1(7),            taps12increment17(8)        }        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The Forward Error Correction (FEC) interleaving used             for this downstream channel.             Values are defined as follows:             taps8Increment16(3):   protection 5.9/4.1 usec,                                    latency .22/.15 msec             taps16Increment8(4):   protection 12/8.2 usec,                                    latency .48/.33 msec             taps32Increment4(5):   protection 24/16 usec,                                    latency .98/.68 msec             taps64Increment2(6):   protection 47/33 usec,                                    latency 2/1.4 msec             taps128Increment1(7):  protection 95/66 usec,                                    latency 4/2.8 msec             taps12increment17(8):  protection 18/14 usec,                                    latency 0.43/0.32 msec            The value 'taps12increment17' is supported by EuroDOCSIS            cable systems only, and the others by DOCSIS cable systems.             If the interface is down, this object either returns             the configured value (CMTS), the most current value (CM),             or the value of unknown(1).             The value of other(2) is returned if the interleave             is known but not defined in the above list.             See the associated conformance object for write             conditions and limitations.  See the reference for the FEC             configuration described by the setting of this object."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Raftus & Cardona            Standards Track                    [Page 31]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Table 6-15."        ::= { docsIfDownstreamChannelEntry 5 }   docsIfDownChannelPower OBJECT-TYPE        SYNTAX      TenthdBmV        UNITS       "dBmV"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "At the CMTS, the operational transmit power.  At the CM,             the received power level.             If the interface is down, this object either returns             the configured value (CMTS), the most current value (CM)             or the value of 0.  See the associated conformance object             for write conditions and limitations.  See the reference             for recommended and required power levels."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-16, 6-17."        ::= { docsIfDownstreamChannelEntry 6 }   docsIfDownChannelAnnex OBJECT-TYPE        SYNTAX      INTEGER {            unknown(1),            other(2),            annexA(3),            annexB(4),            annexC(5)        }        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The value of this object indicates the conformance of             the implementation to important regional cable standards.             annexA : Annex A from ITU-T J.83 is used.                      (equivalent to EN 300 429)             annexB : Annex B from ITU-T J.83 is used.             annexC : Annex C from ITU-T J.83 is used."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections6.3.1, and H.3.1."        ::= { docsIfDownstreamChannelEntry 7 }   docsIfDownChannelStorageType OBJECT-TYPE        SYNTAX       StorageType        MAX-ACCESS   read-onlyRaftus & Cardona            Standards Track                    [Page 32]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        STATUS       current        DESCRIPTION            "The storage type for this conceptual row.             Entries with this object set to permanent(4)             do not require write operations for read-write             objects."        ::= { docsIfDownstreamChannelEntry 8 }   --   -- The following table is implemented on both the CM and the CMTS.   -- For the CM, only attached channels appear in the table.  For the   -- CM, this table is read-only as well.   --   docsIfUpstreamChannelTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfUpstreamChannelEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "This table describes the attributes of attached upstream             channels."        ::= { docsIfBaseObjects 2 }   docsIfUpstreamChannelEntry OBJECT-TYPE        SYNTAX      DocsIfUpstreamChannelEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "List of attributes for a single upstream channel.  For             DOCSIS 2.0 CMTSs, an entry in this table exists for             each ifEntry with an ifType of docsCableUpstreamChannel             (205).             For DOCSIS 1.x CM/CMTSs and DOCSIS 2.0 CMs, an entry in             this table exists for each ifEntry with an ifType of             docsCableUpstream (129).             For DOCSIS 2.0 CMTSs, two classes of interfaces can be             defined for this table:              o Upstream Physical Interfaces: The traditional DOCSIS                1.x CMTS upstream interface ifType 129 and the DOCSIS                2.0 ifType 205 that are functional.  In other words,                interfaces that represent upstream receivers within                an RF MAC interface.                Entries of physical interfaces are exposed to the                management interface with their corresponding                ifStack hierarchy and are not administratively                created by this table.Raftus & Cardona            Standards Track                    [Page 33]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006              o Upstream Temporary Interfaces: A fictitious                interface created for the purpose of manipulating                physical interface parameters offline, then                validating prior to updating the target physical                interface.             In case of a reinitialization of the managed system,             physical interfaces values persist while the temporary             interfaces are not recreated.             This mechanism helps to minimize service disruptions             originating in situations where a group of interface             parameter values need to be consistent with each other             in SET operations.  A temporary buffer             (temporary interface) is provided to allow the CMTS             to validate the parameters offline."        INDEX { ifIndex }        ::= { docsIfUpstreamChannelTable 1 }   DocsIfUpstreamChannelEntry ::= SEQUENCE {            docsIfUpChannelId                     Integer32,            docsIfUpChannelFrequency              Integer32,            docsIfUpChannelWidth                  Integer32,            docsIfUpChannelModulationProfile      Unsigned32,            docsIfUpChannelSlotSize               Unsigned32,            docsIfUpChannelTxTimingOffset         Unsigned32,            docsIfUpChannelRangingBackoffStart    Integer32,            docsIfUpChannelRangingBackoffEnd      Integer32,            docsIfUpChannelTxBackoffStart         Integer32,            docsIfUpChannelTxBackoffEnd           Integer32,            docsIfUpChannelScdmaActiveCodes       Unsigned32,            docsIfUpChannelScdmaCodesPerSlot      Integer32,            docsIfUpChannelScdmaFrameSize         Unsigned32,            docsIfUpChannelScdmaHoppingSeed       Unsigned32,            docsIfUpChannelType                   DocsisUpstreamType,            docsIfUpChannelCloneFrom              InterfaceIndexOrZero,            docsIfUpChannelUpdate                 TruthValue,            docsIfUpChannelStatus                 RowStatus,            docsIfUpChannelPreEqEnable            TruthValue        }   docsIfUpChannelId OBJECT-TYPE        SYNTAX      Integer32 (0..255)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The CMTS identification of the upstream channel."        ::= { docsIfUpstreamChannelEntry 1 }Raftus & Cardona            Standards Track                    [Page 34]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfUpChannelFrequency OBJECT-TYPE        SYNTAX      Integer32 (0..1000000000)        UNITS       "hertz"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The center of the frequency band associated with this             upstream interface.  This object returns 0 if the frequency             is undefined or unknown.  Minimum permitted upstream             frequency is 5,000,000 Hz for current technology.  See             the associated conformance object for write conditions             and limitations."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 4-2."        ::= { docsIfUpstreamChannelEntry 2 }   docsIfUpChannelWidth OBJECT-TYPE        SYNTAX      Integer32 (0..64000000)        UNITS       "hertz"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The bandwidth of this upstream interface.  This object             returns 0 if the interface width is undefined or unknown.             Minimum permitted interface width is currently 200,000 Hz.             See the associated conformance object for write conditions             and limitations."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 6-5."        ::= { docsIfUpstreamChannelEntry 3 }   docsIfUpChannelModulationProfile OBJECT-TYPE        SYNTAX      Unsigned32        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "An entry identical to the docsIfModIndex in the             docsIfCmtsModulationTable that describes this channel.             This channel is further instantiated there by a grouping             of interval usage codes (IUCs) that, together, fully             describe the channel modulation.  This object returns 0 if             the docsIfCmtsModulationTable entry does not exist or is             empty.  See the associated conformance object for write             conditions and limitations.Raftus & Cardona            Standards Track                    [Page 35]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Setting this object returns an 'inconsistentValue'             error if the following conditions are not satisfied:             1. All the IUC entries in the selected modulation profile             MUST have the same value of docsIfCmtsModChannelType.             2. All of the Modulation parameters in the selected             modulation profile MUST be consistent with the other             parameters in this docsIfUpstreamChannelEntry."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 8-19."        ::= { docsIfUpstreamChannelEntry 4 }   docsIfUpChannelSlotSize OBJECT-TYPE        SYNTAX      Unsigned32        UNITS       "ticks"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Applicable to TDMA and ATDMA channel types only.             The number of 6.25 microsecond ticks in each upstream             mini-slot.  Returns zero if the value is undefined or             unknown or in case of an SCDMA channel.             See the associated conformance object for write             conditions and limitations."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.1.2.4."        ::= { docsIfUpstreamChannelEntry 5 }   docsIfUpChannelTxTimingOffset OBJECT-TYPE        SYNTAX      Unsigned32        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "At the CM, a measure of the current round trip time             obtained from the ranging offset (initial ranging offset +             ranging offset adjustments).             At the CMTS, the maximum of timing offset, among all the             CMs that are/were present on the channel, taking into             account all ( initial + periodic ) timing offset             corrections that were sent for each of the CMs.  Generally,             these measurements are positive, but if the measurements             are negative, the value of this object is zero.  Used for             timing of CM upstream transmissions to ensure synchronized             arrivals at the CMTS.             Units are one 64th fraction of 6.25 microseconds."Raftus & Cardona            Standards Track                    [Page 36]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.19."        ::= { docsIfUpstreamChannelEntry 6 }   docsIfUpChannelRangingBackoffStart OBJECT-TYPE        SYNTAX      Integer32 (0..16)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The initial random backoff window to use when retrying             Ranging Requests.  Expressed as a power of 2.  A value of             16 at the CMTS indicates that a proprietary adaptive retry             mechanism is to be used.  See the associated conformance             object for write conditions and limitations."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections8.3.4, and9.4."        ::= { docsIfUpstreamChannelEntry 7 }   docsIfUpChannelRangingBackoffEnd OBJECT-TYPE        SYNTAX      Integer32 (0..16)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The final random backoff window to use when retrying             Ranging Requests.  Expressed as a power of 2.  A value of             16 at the CMTS indicates that a proprietary adaptive retry             mechanism is to be used.  See the associated conformance             object for write conditions and limitations."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.4, and 9.4."        ::= { docsIfUpstreamChannelEntry 8 }   docsIfUpChannelTxBackoffStart OBJECT-TYPE        SYNTAX      Integer32 (0..16)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The initial random backoff window to use when retrying             transmissions.  Expressed as a power of 2.  A value of 16             at the CMTS indicates that a proprietary adaptive retry             mechanism is to be used.  See the associated conformance             object for write conditions and limitations."Raftus & Cardona            Standards Track                    [Page 37]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.4, and 9.4."        ::= { docsIfUpstreamChannelEntry 9 }   docsIfUpChannelTxBackoffEnd OBJECT-TYPE        SYNTAX      Integer32 (0..16)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The final random backoff window to use when retrying             transmissions.  Expressed as a power of 2.  A value of 16             at the CMTS indicates that a proprietary adaptive retry             mechanism is to be used.  See the associated conformance             object for write conditions and limitations."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.4, and 9.4."        ::= { docsIfUpstreamChannelEntry 10 }   docsIfUpChannelScdmaActiveCodes OBJECT-TYPE        SYNTAX     Unsigned32 (0|64..66|68..70|72|74..78|80..82|84..88                                |90..96|98..100|102|104..106|108                                |110..112|114..126|128)        MAX-ACCESS read-create        STATUS     current        DESCRIPTION            "Applicable for SCDMA channel types only.             Number of active codes.  Returns zero for             Non-SCDMA channel types.  Note that legal             values from 64..128 MUST be non-prime."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.11.2.1."        ::= { docsIfUpstreamChannelEntry 11 }   docsIfUpChannelScdmaCodesPerSlot OBJECT-TYPE        SYNTAX      Integer32(0 | 2..32)        UNITS       "codesperMinislots"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Applicable for SCDMA channel types only.             The number of SCDMA codes per mini-slot.             Returns zero if the value is undefined or unknown or inRaftus & Cardona            Standards Track                    [Page 38]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             case of a TDMA or ATDMA channel."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.11.2.1."        ::= { docsIfUpstreamChannelEntry 12 }   docsIfUpChannelScdmaFrameSize OBJECT-TYPE        SYNTAX      Unsigned32 (0..32)        UNITS       "spreadIntervals"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Applicable for SCDMA channel types only.             SCDMA Frame size in units of spreading intervals.             This value returns zero for non-SCDMA Profiles."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.12."        ::= { docsIfUpstreamChannelEntry 13 }   docsIfUpChannelScdmaHoppingSeed OBJECT-TYPE        SYNTAX     Unsigned32 (0..32767)        MAX-ACCESS read-create        STATUS     current        DESCRIPTION            "Applicable for SCDMA channel types only.             15-bit seed used for code hopping sequence initialization.             Returns zero for non-SCDMA channel types.             Setting this value to a value different than zero for             non-SCDMA channel types returns the error 'wrongValue'."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.14.1."        ::= { docsIfUpstreamChannelEntry 14 }   docsIfUpChannelType OBJECT-TYPE        SYNTAX      DocsisUpstreamType        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Reflects the Upstream channel type.             This object returns the value of docsIfCmtsModChannelType             for the modulation profile selected in             docsIfUpChannelModulationProfile for this row."        REFERENCERaftus & Cardona            Standards Track                    [Page 39]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.1."        ::= { docsIfUpstreamChannelEntry 15 }   docsIfUpChannelCloneFrom OBJECT-TYPE        SYNTAX      InterfaceIndexOrZero        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "This object contains the ifIndex value of the physical             interface row entry whose parameters are to be adjusted.             Upon setting this object to the ifIndex value of a             physical interface, the following interface objects values             are copied to this entry:             docsIfUpChannelFrequency,             docsIfUpChannelWidth,             docsIfUpChannelModulationProfile,             docsIfUpChannelSlotSize,             docsIfUpChannelRangingBackoffStart,             docsIfUpChannelRangingBackoffEnd,             docsIfUpChannelTxBackoffStart,             docsIfUpChannelTxBackoffEnd,             docsIfUpChannelScdmaActiveCodes,             docsIfUpChannelScdmaCodesPerSlot,             docsIfUpChannelScdmaFrameSize,             docsIfUpChannelScdmaHoppingSeed,             docsIfUpChannelType, and             docsIfUpChannelPreEqEnable             Setting this object to the value of a non-existent or             a temporary upstream interface returns the error             'wrongValue'.             This object MUST contain a value of zero for physical             interfaces entries.             Setting this object in row entries that correspond to             physical interfaces returns the error 'wrongValue'."        ::= { docsIfUpstreamChannelEntry 16 }   docsIfUpChannelUpdate OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Used to perform the copy of adjusted parameters from the             temporary interface entry to the physical interface             indicated by the docsIfUpChannelCloneFrom object.  The             transfer is initiated through an SNMP SET to 'true' ofRaftus & Cardona            Standards Track                    [Page 40]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             this object.             A SET to 'true' fails and returns error 'commitFailed'             if docsIfUpChannelStatus value is 'notInService', which             means that the interface parameters values are not             compatible with each other or have not been validated yet.             Reading this object always returns 'false'."        ::= { docsIfUpstreamChannelEntry 17 }   docsIfUpChannelStatus OBJECT-TYPE        SYNTAX      RowStatus        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "This object is only used for the creation of a temporary             upstream row with the purpose of updating the parameters             of a physical upstream channel entry.             The following restrictions apply to this object:             1. This object is not writable for physical interfaces.             2. Temporary interface entries are only created by a SET                of this object to createandWait(5).             3. ifAdminStatus from the Interface MIBRFC 2863 is used                to take a physical upstream channel offline, to be                consistent with DOCSIS 1.x operation, as indicated inRFC 2670.                In addition,                 o ifAdminStatus 'down' is reflected in this object                   as 'notInService'.                 o ifOperStatus 'down' while ifAdminStatus 'up' is                   reflected in this object as 'notInservice'.             4. Temporary created rows MUST be set to 'active' with                the purpose of validating upstream parameter                consistency prior to transferring the parameters to the                physical interface.             Below is a mandatory procedure for adjusting the values             of a physical interface:             1. Create a temporary interface entry through an SNMP SET                using 'createAndWait'.  At this point, the RowStatus                reports 'notReady'.                The Manager entity uses an ifIndex value outside the                operational range of the physical interfaces for the                creation of a temporary interface.             2. Set the docsIfUpChannelCloneFrom object to the ifIndex                value of the physical row to update.  Now                docsIfUpChannelStatus reports 'notInService'.             3. Change the upstream parameters to the desired values                in the temporary row.Raftus & Cardona            Standards Track                    [Page 41]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             4. Validate that all parameters are consistent by setting                docsIfUpChannelStatus to 'active'.  A failure to set the                RowStatus to 'active' returns the error 'commitFailed',                which means the parameters are not compatible with the                target physical interface.             5. With docsIfUpChannelStatus 'active', transfer the                parameters to the target physical interface by setting                the object docsIfUpChannelUpdate to 'true'.             6. Delete the temporary row by setting                docsIfUpChannelStatus to 'destroy'."        ::= { docsIfUpstreamChannelEntry 18 }   docsIfUpChannelPreEqEnable OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "At the CMTS, this object is used to enable or disable             pre-equalization on the upstream channel represented by             this table instance.  At the CM, this object is read-only             and reflects the status of pre-equalization as represented             in the RNG-RSP.  Pre-equalization is considered enabled at             the CM if a RNG-RSP with pre-equalization data has been             received at least once since the last mac             reinitialization."        DEFVAL {false}        ::= { docsIfUpstreamChannelEntry 19 }   -- The following table describes the attributes of each class of   -- service.  The entries in this table are referenced from the   -- docsIfServiceEntries.  They exist as a separate table in order to   -- reduce redundant information in docsIfServiceTable.   --   -- This table is implemented at both the CM and the CMTS.   -- The CM need only maintain entries for the classes of service   -- referenced by its docsIfCmServiceTable.   --   docsIfQosProfileTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfQosProfileEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes the attributes for each class of service."        ::= { docsIfBaseObjects 3 }   docsIfQosProfileEntry OBJECT-TYPE        SYNTAX      DocsIfQosProfileEntryRaftus & Cardona            Standards Track                    [Page 42]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes the attributes for a single class of service.             If implemented as read-create in the Cable Modem             Termination System, creation of entries in this table is             controlled by the value of             docsIfCmtsQosProfilePermissions.             If implemented as read-only, entries are created based             on information in REG-REQ MAC messages received from             cable modems (for Cable Modem Termination System), or             based on information extracted from the TFTP option file             (for Cable Modem).             In the Cable Modem Termination System, read-only entries             are removed if no longer referenced by             docsIfCmtsServiceTable.             An entry in this table MUST not be removed while it is             referenced by an entry in docsIfCmServiceTable (Cable             Modem) or docsIfCmtsServiceTable (Cable Modem Termination             System).             An entry in this table SHOULD NOT be changeable while             it is referenced by an entry in docsIfCmtsServiceTable.             If this table is created automatically, there SHOULD only             be a single entry for each Class of Service.  Multiple             entries with the same Class of Service parameters are NOT             RECOMMENDED."        INDEX { docsIfQosProfIndex }        ::= { docsIfQosProfileTable 1 }   DocsIfQosProfileEntry ::= SEQUENCE {            docsIfQosProfIndex                Integer32,            docsIfQosProfPriority             Integer32,            docsIfQosProfMaxUpBandwidth       Integer32,            docsIfQosProfGuarUpBandwidth      Integer32,            docsIfQosProfMaxDownBandwidth     Integer32,            docsIfQosProfMaxTxBurst           Integer32,  -- deprecated            docsIfQosProfBaselinePrivacy      TruthValue,            docsIfQosProfStatus               RowStatus,            docsIfQosProfMaxTransmitBurst     Integer32,            docsIfQosProfStorageType          StorageType        }   docsIfQosProfIndex OBJECT-TYPE        SYNTAX      Integer32 (1..16383)Raftus & Cardona            Standards Track                    [Page 43]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "The index value that uniquely identifies an entry             in the docsIfQosProfileTable."        ::= { docsIfQosProfileEntry 1 }   docsIfQosProfPriority OBJECT-TYPE        SYNTAX      Integer32 (0..7)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "A relative priority assigned to this service when             allocating bandwidth.  Zero indicates lowest priority             and seven indicates highest priority.             Interpretation of priority is device-specific.             MUST NOT be changed while this row is active."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex C.1.1.4."        DEFVAL { 0 }        ::= { docsIfQosProfileEntry 2 }   docsIfQosProfMaxUpBandwidth OBJECT-TYPE        SYNTAX      Integer32 (0..100000000)        UNITS "bits per second"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The maximum upstream bandwidth, in bits per second,             allowed for a service with this service class.             Zero if there is no restriction of upstream bandwidth.             MUST NOT be changed while this row is active."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex C.1.1.4."        DEFVAL { 0 }        ::= { docsIfQosProfileEntry 3 }   docsIfQosProfGuarUpBandwidth OBJECT-TYPE        SYNTAX      Integer32 (0..100000000)        UNITS "bits per second"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Minimum guaranteed upstream bandwidth, in bits per second,Raftus & Cardona            Standards Track                    [Page 44]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             allowed for a service with this service class.             MUST NOT be changed while this row is active."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex C.1.1.4."        DEFVAL { 0 }        ::= { docsIfQosProfileEntry 4 }   docsIfQosProfMaxDownBandwidth OBJECT-TYPE        SYNTAX      Integer32 (0..100000000)        UNITS "bits per second"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The maximum downstream bandwidth, in bits per second,             allowed for a service with this service class.             Zero if there is no restriction of downstream bandwidth.             MUST NOT be changed while this row is active."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex C.1.1.4."        DEFVAL { 0 }        ::= { docsIfQosProfileEntry 5 }   docsIfQosProfMaxTxBurst OBJECT-TYPE        SYNTAX      Integer32 (0..255)        UNITS "mini-slots"        MAX-ACCESS  read-create        STATUS      deprecated        DESCRIPTION            "The maximum number of mini-slots that may be requested             for a single upstream transmission.             A value of zero means there is no limit.             MUST NOT be changed while this row is active.             This object has been deprecated and replaced by             docsIfQosProfMaxTransmitBurst, to fix a mismatch             of the units and value range with respect to the DOCSIS             Maximum Upstream Channel Transmit Burst Configuration             Setting."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             C.1.1.4."        DEFVAL { 0 }        ::= { docsIfQosProfileEntry 6 }Raftus & Cardona            Standards Track                    [Page 45]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfQosProfBaselinePrivacy OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Indicates whether Baseline Privacy is enabled for this             service class.             MUST NOT be changed while this row is active."        DEFVAL { false }        ::= { docsIfQosProfileEntry 7 }   docsIfQosProfStatus OBJECT-TYPE        SYNTAX      RowStatus        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "This is object is used to create or delete rows in             this table.  This object MUST NOT be changed from active             while the row is referenced by any entry in either             docsIfCmServiceTable (on the CM) or             docsIfCmtsServiceTable (on the CMTS)."        ::= { docsIfQosProfileEntry 8 }   docsIfQosProfMaxTransmitBurst OBJECT-TYPE        SYNTAX      Integer32 (0..65535)        UNITS       "bytes"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The maximum number of bytes that may be requested for a             single upstream transmission.  A value of zero means there             is no limit.  Note: This value does not include any             physical layer overhead.             MUST NOT be changed while this row is active."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex C.1.1.4."        DEFVAL { 0 }        ::= { docsIfQosProfileEntry 9 }   docsIfQosProfStorageType OBJECT-TYPE        SYNTAX       StorageType        MAX-ACCESS   read-only        STATUS       current        DESCRIPTION            "The storage type for this conceptual row.             Entries with this object set to permanent(4)Raftus & Cardona            Standards Track                    [Page 46]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             do not require write operations for writable             objects."        ::= { docsIfQosProfileEntry 10 }   docsIfSignalQualityTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfSignalQualityEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "At the CM, describes the PHY signal quality of downstream             channels.  At the CMTS, this object describes the PHY             signal quality of upstream channels.  At the CMTS, this             table MAY exclude contention intervals."        ::= { docsIfBaseObjects 4 }   docsIfSignalQualityEntry OBJECT-TYPE        SYNTAX      DocsIfSignalQualityEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "At the CM, this object describes the PHY characteristics of             a downstream channel.  At the CMTS, it describes the PHY             signal quality of an upstream channel.             An entry in this table exists for each ifEntry with an             ifType of docsCableDownstream(128) for Cable Modems.             For DOCSIS 1.1 Cable Modem Termination Systems, an entry             exists for each ifEntry with an ifType of             docsCableUpstream (129).             For DOCSIS 2.0 Cable Modem Termination Systems, an entry             exists for each ifEntry with an ifType of             docsCableUpstreamChannel (205)."        INDEX { ifIndex }        ::= { docsIfSignalQualityTable 1 }   DocsIfSignalQualityEntry ::= SEQUENCE {            docsIfSigQIncludesContention  TruthValue,            docsIfSigQUnerroreds          Counter32,            docsIfSigQCorrecteds          Counter32,            docsIfSigQUncorrectables      Counter32,            docsIfSigQSignalNoise         TenthdB,            docsIfSigQMicroreflections    Integer32,            docsIfSigQEqualizationData    DocsEqualizerData,            docsIfSigQExtUnerroreds       Counter64,            docsIfSigQExtCorrecteds       Counter64,            docsIfSigQExtUncorrectables   Counter64        }   docsIfSigQIncludesContention OBJECT-TYPERaftus & Cardona            Standards Track                    [Page 47]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        SYNTAX      TruthValue        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "true(1) if this CMTS includes contention intervals in             the counters in this table.  Always false(2) for CMs."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4.1"        ::= { docsIfSignalQualityEntry 1 }   docsIfSigQUnerroreds OBJECT-TYPE        SYNTAX      Counter32        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received on this channel without error.             This includes all codewords, whether or not they             were part of frames destined for this device.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections6.2.4, and6.3.6."        ::= { docsIfSignalQualityEntry 2 }   docsIfSigQCorrecteds OBJECT-TYPE        SYNTAX      Counter32        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received on this channel with correctable             errors.  This includes all codewords, whether or not             they were part of frames destined for this device.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections6.2.4, and6.3.6."Raftus & Cardona            Standards Track                    [Page 48]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        ::= { docsIfSignalQualityEntry 3 }   docsIfSigQUncorrectables OBJECT-TYPE        SYNTAX      Counter32        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received on this channel with uncorrectable             errors.  This includes all codewords, whether or not             they were part of frames destined for this device.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections6.2.4, and6.3.6."        ::= { docsIfSignalQualityEntry 4 }   docsIfSigQSignalNoise OBJECT-TYPE        SYNTAX      TenthdB        UNITS       "TenthdB"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Signal/Noise ratio as perceived for this channel.             At the CM, this object  describes the Signal/Noise of the             downstream channel.  At the CMTS, it describes the             average Signal/Noise of the upstream channel."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 4-1 and 4-2"        ::= { docsIfSignalQualityEntry 5 }   docsIfSigQMicroreflections OBJECT-TYPE        SYNTAX      Integer32 (0..255)        UNITS       "-dBc"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Microreflections, including in-channel response             as perceived on this interface, measured in dBc below             the signal level.             This object is not assumed to return an absolutely             accurate value, but it gives a rough indicationRaftus & Cardona            Standards Track                    [Page 49]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             of microreflections received on this interface.             It is up to the implementer to provide information             as accurately as possible."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 4-1 and 4-2"        ::= { docsIfSignalQualityEntry 6 }   docsIfSigQEqualizationData OBJECT-TYPE           SYNTAX      DocsEqualizerData           MAX-ACCESS  read-only           STATUS      current           DESCRIPTION               "At the CM, this object returns the equalization data for                the downstream channel.                At the CMTS, this object is not applicable and is not                instantiated.  Note that previous CMTS implementations                may instantiate this object in two ways:                - An equalization value indicating an equalization                  average for the upstream channel.  Those values have                  vendor-dependent interpretations.                - Return a zero-length OCTET STRING to indicate that                  the value is unknown or if there is no equalization                  data available or defined."           REFERENCE               "DOCSIS Radio Frequency Interface Specification,                Figure 6-23."           ::= { docsIfSignalQualityEntry 7 }   docsIfSigQExtUnerroreds OBJECT-TYPE        SYNTAX      Counter64        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received on this channel without error.             This includes all codewords, whether or not they             were part of frames destined for this device.             This is the 64-bit version of docsIfSigQUnerroreds.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: RadioRaftus & Cardona            Standards Track                    [Page 50]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections6.2.4, and6.3.6."        ::= { docsIfSignalQualityEntry 8 }   docsIfSigQExtCorrecteds OBJECT-TYPE        SYNTAX      Counter64        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received on this channel with correctable             errors.  This includes all codewords, whether or not             they were part of frames destined for this device.             This is the 64-bit version of docsIfSigQCorrecteds.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections6.2.4, and6.3.6."        ::= { docsIfSignalQualityEntry 9 }   docsIfSigQExtUncorrectables OBJECT-TYPE        SYNTAX      Counter64        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received on this channel with uncorrectable             errors.  This includes all codewords, whether or not             they were part of frames destined for this device.             This is the 64-bit version of docsIfSigQUncorrectables.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Sections6.2.4,6.3.6."        ::= { docsIfSignalQualityEntry 10 }   --   -- DOCSIS Version of the device   --Raftus & Cardona            Standards Track                    [Page 51]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfDocsisBaseCapability OBJECT-TYPE           SYNTAX      DocsisVersion           MAX-ACCESS  read-only           STATUS      current           DESCRIPTION               "Indication of the DOCSIS capability of the device."           REFERENCE               "Data-Over-Cable Service Interface Specifications: Radio                Frequency Interface Specification SP-RFIv2.0-I10-051209,                Annex G."           ::= { docsIfBaseObjects 5 }   --   -- CABLE MODEM GROUP   --   --   -- The CM MAC Table   --   docsIfCmMacTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmMacEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes the attributes of each CM MAC interface,             extending the information available from ifEntry."        ::= { docsIfCmObjects 1 }   docsIfCmMacEntry OBJECT-TYPE        SYNTAX      DocsIfCmMacEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "An entry containing objects describing attributes of             each MAC entry, extending the information in ifEntry.             An entry in this table exists for each ifEntry with an             ifType of docsCableMaclayer(127)."        INDEX { ifIndex }        ::= { docsIfCmMacTable 1 }   DocsIfCmMacEntry ::= SEQUENCE {            docsIfCmCmtsAddress           MacAddress,            docsIfCmCapabilities          BITS,            docsIfCmRangingRespTimeout    TimeTicks,            docsIfCmRangingTimeout        TimeInterval         }Raftus & Cardona            Standards Track                    [Page 52]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfCmCmtsAddress OBJECT-TYPE        SYNTAX      MacAddress        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Identifies the CMTS that is believed to control this MAC             domain.  At the CM, this will be the source address from             SYNC, MAP, and other MAC-layer messages.  If the CMTS is             unknown, returns 00-00-00-00-00-00."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.2.2."        ::= { docsIfCmMacEntry 1 }   docsIfCmCapabilities OBJECT-TYPE        SYNTAX      BITS {            atmCells(0),            concatenation(1)        }        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Identifies the capabilities of the MAC implementation             at this interface.  Note that packet transmission is             always supported.  Therefore, there is no specific bit             required to explicitly indicate this capability.             Note that BITS objects are encoded most significant bit             first.  For example, if bit 1 is set, the value of this             object is the octet string '40'H."        ::= { docsIfCmMacEntry 2 }   docsIfCmRangingRespTimeout OBJECT-TYPE        SYNTAX      TimeTicks        MAX-ACCESS  read-write        STATUS      obsolete        DESCRIPTION            "Waiting time for a Ranging Response packet.             This object has been obsoleted and replaced by             docsIfCmRangingTimeout to correct the typing to             TimeInterval."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.1.6."        DEFVAL { 20 }        ::= { docsIfCmMacEntry 3 }Raftus & Cardona            Standards Track                    [Page 53]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfCmRangingTimeout OBJECT-TYPE        SYNTAX      TimeInterval        UNITS       "HundredOfSeconds"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "Waiting time for a Ranging Response packet.             This object MUST NOT persist at reinitialization             of the managed system."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.1.6, timer T3."        DEFVAL { 20 }        ::= { docsIfCmMacEntry 4 }   --   -- CM status table.   -- This table is implemented only at the CM.   --   docsIfCmStatusTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmStatusEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "This table maintains a number of status objects             and counters for Cable Modems."        ::= { docsIfCmObjects 2 }   docsIfCmStatusEntry OBJECT-TYPE        SYNTAX      DocsIfCmStatusEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "A set of status objects and counters for a single MAC             layer instance in Cable Modem.             An entry in this table exists for each ifEntry with an             ifType of docsCableMaclayer(127)."        INDEX { ifIndex }        ::= { docsIfCmStatusTable 1 }   DocsIfCmStatusEntry ::= SEQUENCE {            docsIfCmStatusValue               INTEGER,            docsIfCmStatusCode                OCTET STRING,            docsIfCmStatusTxPower             TenthdBmV,            docsIfCmStatusResets              Counter32,            docsIfCmStatusLostSyncs           Counter32,Raftus & Cardona            Standards Track                    [Page 54]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfCmStatusInvalidMaps         Counter32,            docsIfCmStatusInvalidUcds         Counter32,            docsIfCmStatusInvalidRangingResponses   Counter32,            docsIfCmStatusInvalidRegistrationResponses Counter32,            docsIfCmStatusT1Timeouts          Counter32,            docsIfCmStatusT2Timeouts          Counter32,            docsIfCmStatusT3Timeouts          Counter32,            docsIfCmStatusT4Timeouts          Counter32,            docsIfCmStatusRangingAborteds     Counter32,            docsIfCmStatusDocsisOperMode      DocsisQosVersion,            docsIfCmStatusModulationType      DocsisUpstreamType,            docsIfCmStatusEqualizationData    DocsEqualizerData,            docsIfCmStatusUCCs                Counter32,            docsIfCmStatusUCCFails            Counter32        }   docsIfCmStatusValue OBJECT-TYPE        SYNTAX      INTEGER {            other(1),            notReady(2),            notSynchronized(3),            phySynchronized(4),            usParametersAcquired(5),            rangingComplete(6),            ipComplete(7),            todEstablished(8),            securityEstablished(9),            paramTransferComplete(10),            registrationComplete(11),            operational(12),            accessDenied(13)        }        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current Cable Modem connectivity state, as specified             in the RF Interface Specification.  Interpretations for             state values 1-12 are clearly outlined in the SP-RFI             reference given below.             The state value accessDenied(13) indicates the CMTS has             sent a Registration Aborted message to the CM.  The same             state is reported as accessDenied(7) by the CMTS object             docsIfCmtsCmStatusValue."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 11.2.             Data-Over-Cable Service Interface Specifications:Raftus & Cardona            Standards Track                    [Page 55]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Operations Support System Interface Specification             SP-OSSIv2.0-I09-050812,Section 6.3.4.2."        ::= { docsIfCmStatusEntry 1 }   docsIfCmStatusCode OBJECT-TYPE        SYNTAX      OCTET STRING (SIZE( 0 | 5 | 6 ))        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Status code for a Cable Modem as defined in the             OSSI Specification.  The status code consists             of a single character indicating error groups, followed             by a two- or three-digit number indicating the status             condition, followed by a decimal.             An example of a returned value could be 'T101.0'.             The zero-length OCTET STRING indicates no status code yet             registered."        REFERENCE            "Data-Over-Cable Service Interface Specifications:             Operations Support System Interface Specification             SP-OSSIv2.0-I09-050812, Annex D."        ::= { docsIfCmStatusEntry 2 }   docsIfCmStatusTxPower OBJECT-TYPE        SYNTAX      TenthdBmV        UNITS       "TenthdBmV"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The operational transmit power for the attached upstream             channel."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.18."        ::= { docsIfCmStatusEntry 3 }   docsIfCmStatusResets OBJECT-TYPE        SYNTAX      Counter32        UNITS       "resets"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times the CM reset or initialized this             interface.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at otherRaftus & Cardona            Standards Track                    [Page 56]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmStatusEntry 4 }   docsIfCmStatusLostSyncs OBJECT-TYPE        SYNTAX      Counter32        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times the CM lost synchronization with             the downstream channel.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.2."        ::= { docsIfCmStatusEntry 5 }   docsIfCmStatusInvalidMaps OBJECT-TYPE        SYNTAX      Counter32        UNITS       "maps"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times the CM received invalid MAP messages.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.4."        ::= { docsIfCmStatusEntry 6 }   docsIfCmStatusInvalidUcds OBJECT-TYPE        SYNTAX      Counter32        UNITS       "messages"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times the CM received invalid UCD messages.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value ofRaftus & Cardona            Standards Track                    [Page 57]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.3."        ::= { docsIfCmStatusEntry 7 }   docsIfCmStatusInvalidRangingResponses OBJECT-TYPE        SYNTAX      Counter32        UNITS       "messages"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times the CM received invalid ranging response             messages.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.6."        ::= { docsIfCmStatusEntry 8 }   docsIfCmStatusInvalidRegistrationResponses OBJECT-TYPE        SYNTAX      Counter32        UNITS       "messages"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times the CM received invalid registration             response messages.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.8."        ::= { docsIfCmStatusEntry 9 }   docsIfCmStatusT1Timeouts OBJECT-TYPE        SYNTAX      Counter32        UNITS       "timeouts"        MAX-ACCESS  read-only        STATUS      currentRaftus & Cardona            Standards Track                    [Page 58]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "Number of times counter T1 expired in the CM.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 9-2."        ::= { docsIfCmStatusEntry 10 }   docsIfCmStatusT2Timeouts OBJECT-TYPE        SYNTAX      Counter32        UNITS       "timeouts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times counter T2 expired in the CM.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 9-2."        ::= { docsIfCmStatusEntry 11 }   docsIfCmStatusT3Timeouts OBJECT-TYPE        SYNTAX      Counter32        UNITS       "timeouts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times counter T3 expired in the CM.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 9-2."        ::= { docsIfCmStatusEntry 12 }   docsIfCmStatusT4Timeouts OBJECT-TYPE        SYNTAX      Counter32Raftus & Cardona            Standards Track                    [Page 59]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        UNITS       "timeouts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times counter T4 expired in the CM.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 9-2."        ::= { docsIfCmStatusEntry 13 }   docsIfCmStatusRangingAborteds OBJECT-TYPE        SYNTAX      Counter32        UNITS       "attempts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Number of times the ranging process was aborted             by the CMTS.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.3.3."        ::= { docsIfCmStatusEntry 14 }   docsIfCmStatusDocsisOperMode OBJECT-TYPE        SYNTAX      DocsisQosVersion        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION             "Indication of whether the device has registered using 1.0              Class of Service or 1.1 Quality of Service.              An unregistered CM SHOULD indicate 'docsis11' for a              docsIfDocsisBaseCapability value of DOCSIS 1.1/2.0.  An              unregistered CM SHOULD indicate 'docsis10'  for a              docsIfDocsisBaseCapability value of DOCSIS 1.0."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex G."Raftus & Cardona            Standards Track                    [Page 60]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        ::= { docsIfCmStatusEntry 15 }   docsIfCmStatusModulationType OBJECT-TYPE         SYNTAX      DocsisUpstreamType         MAX-ACCESS  read-only         STATUS      current         DESCRIPTION             "Indicates modulation type status currently used by the              CM.  Since this object specifically identifies PHY mode,              the shared upstream channel type is not permitted."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.1."         ::= { docsIfCmStatusEntry 16 }   docsIfCmStatusEqualizationData OBJECT-TYPE        SYNTAX      DocsEqualizerData        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Pre-equalization data for this CM after convolution with             data indicated in the RNG-RSP.  This data is valid when             docsIfUpChannelPreEqEnable is set to true."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 8-23."        ::= { docsIfCmStatusEntry 17 }   docsIfCmStatusUCCs OBJECT-TYPE        SYNTAX          Counter32        UNITS           "attempts"        MAX-ACCESS      read-only        STATUS          current        DESCRIPTION            "The number of successful Upstream Channel Change             transactions.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmStatusEntry 18 }   docsIfCmStatusUCCFails OBJECT-TYPE        SYNTAX          Counter32        UNITS           "attempts"Raftus & Cardona            Standards Track                    [Page 61]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        MAX-ACCESS      read-only        STATUS          current        DESCRIPTION            "The number of failed Upstream Channel Change             transactions.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmStatusEntry 19 }   --   -- The Cable Modem Service Table   --   docsIfCmServiceTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmServiceEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes the attributes of each upstream service queue             on a CM."        ::= { docsIfCmObjects 3 }   docsIfCmServiceEntry OBJECT-TYPE        SYNTAX      DocsIfCmServiceEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes the attributes of an upstream bandwidth service             queue.             An entry in this table exists for each Service ID.             The primary index is an ifIndex with an ifType of             docsCableMaclayer(127)."        INDEX { ifIndex, docsIfCmServiceId }        ::= { docsIfCmServiceTable 1 }   DocsIfCmServiceEntry ::= SEQUENCE {            docsIfCmServiceId               Integer32,            docsIfCmServiceQosProfile       Integer32,            docsIfCmServiceTxSlotsImmed     Counter32,            docsIfCmServiceTxSlotsDed       Counter32,            docsIfCmServiceTxRetries        Counter32,            docsIfCmServiceTxExceededs      Counter32,            docsIfCmServiceRqRetries        Counter32,            docsIfCmServiceRqExceededs      Counter32,            docsIfCmServiceExtTxSlotsImmed  Counter64,            docsIfCmServiceExtTxSlotsDed    Counter64Raftus & Cardona            Standards Track                    [Page 62]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006         }   docsIfCmServiceId OBJECT-TYPE        SYNTAX      Integer32 (1..16383)        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Identifies a service queue for upstream bandwidth.  The             attributes of this service queue are shared between the             CM and the CMTS.  The CMTS allocates upstream bandwidth             to this service queue based on requests from the CM and             on the class of service associated with this queue."        ::= { docsIfCmServiceEntry 1 }   docsIfCmServiceQosProfile OBJECT-TYPE        SYNTAX      Integer32 (0..16383)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The index in docsIfQosProfileTable describing the quality             of service attributes associated with this particular             service.  If no associated entry in docsIfQosProfileTable             exists, this object returns a value of zero."        ::= { docsIfCmServiceEntry 2 }   docsIfCmServiceTxSlotsImmed OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of upstream mini-slots that have been used to             transmit data PDUs in immediate (contention) mode.  This             includes only those PDUs that are presumed to have             arrived at the head-end (i.e., those that were explicitly             acknowledged).  It does not include retransmission attempts             or mini-slots used by requests.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 3 }   docsIfCmServiceTxSlotsDed OBJECT-TYPERaftus & Cardona            Standards Track                    [Page 63]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of upstream mini-slots that have been used to             transmit data PDUs in dedicated mode (i.e., as a result             of a unicast Data Grant).             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 4 }   docsIfCmServiceTxRetries OBJECT-TYPE        SYNTAX      Counter32        UNITS       "attempts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of attempts to transmit data PDUs containing             requests for acknowledgment that did not result in             acknowledgment.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 5 }   docsIfCmServiceTxExceededs OBJECT-TYPE        SYNTAX      Counter32        UNITS       "attempts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of data PDU transmission failures due to             excessive retries without acknowledgment.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value ofRaftus & Cardona            Standards Track                    [Page 64]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 6 }   docsIfCmServiceRqRetries OBJECT-TYPE        SYNTAX      Counter32        UNITS       "attempts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of attempts to transmit bandwidth requests             that did not result in acknowledgment.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 7 }   docsIfCmServiceRqExceededs OBJECT-TYPE        SYNTAX      Counter32        UNITS       "attempts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of requests for bandwidth that failed due to             excessive retries without acknowledgment.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 8 }   docsIfCmServiceExtTxSlotsImmed OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      currentRaftus & Cardona            Standards Track                    [Page 65]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "The number of upstream mini-slots that have been used to             transmit data PDUs in immediate (contention) mode.  This             includes only those PDUs that are presumed to have             arrived at the head-end (i.e., those that were explicitly             acknowledged).  It does not include retransmission attempts             or mini-slots used by requests.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 9 }   docsIfCmServiceExtTxSlotsDed OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of upstream mini-slots that have been used to             transmit data PDUs in dedicated mode (i.e., as a result             of a unicast Data Grant).             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.4."        ::= { docsIfCmServiceEntry 10 }   --   -- CMTS GROUP   --   --   -- The CMTS MAC Table   --   docsIfCmtsMacTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsMacEntry        MAX-ACCESS  not-accessible        STATUS      currentRaftus & Cardona            Standards Track                    [Page 66]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "Describes the attributes of each CMTS MAC interface,             extending the information available from ifEntry.             Mandatory for all CMTS devices."        ::= { docsIfCmtsObjects 1 }   docsIfCmtsMacEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsMacEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "An entry containing objects describing attributes of each             MAC entry, extending the information in ifEntry.             An entry in this table exists for each ifEntry with an             ifType of docsCableMaclayer(127)."        INDEX { ifIndex }        ::= { docsIfCmtsMacTable 1 }   DocsIfCmtsMacEntry ::= SEQUENCE {            docsIfCmtsCapabilities            BITS,            docsIfCmtsSyncInterval            Integer32,            docsIfCmtsUcdInterval             Integer32,            docsIfCmtsMaxServiceIds           Integer32,            docsIfCmtsInsertionInterval       TimeTicks,   -- Obsolete            docsIfCmtsInvitedRangingAttempts  Integer32,            docsIfCmtsInsertInterval          TimeInterval,            docsIfCmtsMacStorageType          StorageType        }   docsIfCmtsCapabilities OBJECT-TYPE        SYNTAX      BITS {            atmCells(0),            concatenation(1)        }        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Identifies the capabilities of the CMTS MAC             implementation at this interface.  Note that packet             transmission is always supported.  Therefore, there             is no specific bit required to explicitly indicate             this capability.             Note that BITS objects are encoded most significant bit             first.  For example, if bit 1 is set, the value of this             object is the octet string '40'H."        ::= { docsIfCmtsMacEntry 1 }   docsIfCmtsSyncInterval OBJECT-TYPERaftus & Cardona            Standards Track                    [Page 67]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        SYNTAX      Integer32 (1..200)        UNITS       "Milliseconds"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The interval between CMTS transmission of successive SYNC             messages at this interface."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.3."        ::= { docsIfCmtsMacEntry 2 }   docsIfCmtsUcdInterval OBJECT-TYPE        SYNTAX      Integer32 (1..2000)        UNITS       "Milliseconds"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The interval between CMTS transmission of successive             Upstream Channel Descriptor messages for each upstream             channel at this interface."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.3"        ::= { docsIfCmtsMacEntry 3 }   docsIfCmtsMaxServiceIds OBJECT-TYPE        SYNTAX     Integer32 (1..16383)        UNITS      "SIDs"        MAX-ACCESS read-only        STATUS     current        DESCRIPTION            "The maximum number of service IDs that may be             simultaneously active."        ::= { docsIfCmtsMacEntry 4 }   docsIfCmtsInsertionInterval OBJECT-TYPE        SYNTAX      TimeTicks        MAX-ACCESS  read-write        STATUS      obsolete        DESCRIPTION            "The amount of time to elapse between each broadcast             initial maintenance grant.  Broadcast initial maintenance             grants are used to allow new cable modems to join the             network.  Zero indicates that a vendor-specific algorithm             is used instead of a fixed time.  The maximum amount ofRaftus & Cardona            Standards Track                    [Page 68]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             time permitted by the specification is 2 seconds.             This object has been obsoleted and replaced by             docsIfCmtsInsertInterval to fix a SYNTAX typing problem."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex B."        ::= { docsIfCmtsMacEntry 5 }   docsIfCmtsInvitedRangingAttempts OBJECT-TYPE        SYNTAX      Integer32 (0..1024)        UNITS      "attempts"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The maximum number of attempts to make on invitations             for ranging requests.  A value of zero means the system             SHOULD attempt to range forever."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 9.3.3 and Annex B."        ::= { docsIfCmtsMacEntry 6 }   docsIfCmtsInsertInterval OBJECT-TYPE        SYNTAX      TimeInterval        UNITS       "HundredOfSeconds"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The amount of time to elapse between each broadcast             initial maintenance grant.  Broadcast initial maintenance             grants are used to allow new cable modems to join the             network.  Zero indicates that a vendor-specific algorithm             is used instead of a fixed time.  The maximum amount of             time permitted by the specification is 2 seconds."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex B."        ::= { docsIfCmtsMacEntry 7 }   docsIfCmtsMacStorageType OBJECT-TYPE        SYNTAX       StorageType        MAX-ACCESS   read-only        STATUS       current        DESCRIPTION            "The storage type for this conceptual row.Raftus & Cardona            Standards Track                    [Page 69]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Entries with this object set to permanent(4)             do not require write operations for read-write             objects."        ::= { docsIfCmtsMacEntry 8 }   --   --   -- CMTS status table.   --   docsIfCmtsStatusTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsStatusEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "For the MAC layer, this group maintains a number of             status objects and counters."        ::= { docsIfCmtsObjects 2 }   docsIfCmtsStatusEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsStatusEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION           "Status entry for a single MAC layer.             An entry in this table exists for each ifEntry with an             ifType of docsCableMaclayer(127)."        INDEX { ifIndex }        ::= { docsIfCmtsStatusTable 1 }   DocsIfCmtsStatusEntry ::= SEQUENCE {            docsIfCmtsStatusInvalidRangeReqs        Counter32,            docsIfCmtsStatusRangingAborteds         Counter32,            docsIfCmtsStatusInvalidRegReqs          Counter32,            docsIfCmtsStatusFailedRegReqs           Counter32,            docsIfCmtsStatusInvalidDataReqs         Counter32,            docsIfCmtsStatusT5Timeouts              Counter32        }   docsIfCmtsStatusInvalidRangeReqs OBJECT-TYPE        SYNTAX      Counter32        UNITS       "messages"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "This object counts invalid RNG-REQ messages received on             this interface.             Discontinuities in the value of this counter can occurRaftus & Cardona            Standards Track                    [Page 70]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.5."        ::= { docsIfCmtsStatusEntry 1 }   docsIfCmtsStatusRangingAborteds OBJECT-TYPE        SYNTAX      Counter32        UNITS       "attempts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "This object counts ranging attempts that were explicitly             aborted by the CMTS.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.6."        ::= { docsIfCmtsStatusEntry 2 }   docsIfCmtsStatusInvalidRegReqs OBJECT-TYPE        SYNTAX      Counter32        UNITS       "messages"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "This object counts invalid REG-REQ messages received on             this interface; that is, syntax, out of range parameters,             or erroneous requests.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.7."        ::= { docsIfCmtsStatusEntry 3 }   docsIfCmtsStatusFailedRegReqs OBJECT-TYPE        SYNTAX      Counter32Raftus & Cardona            Standards Track                    [Page 71]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        UNITS       "attempts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "This object counts failed registration attempts.  Included             are docsIfCmtsStatusInvalidRegReqs, authentication, and             class of service failures.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.3.7."        ::= { docsIfCmtsStatusEntry 4 }   docsIfCmtsStatusInvalidDataReqs OBJECT-TYPE        SYNTAX      Counter32        UNITS       "messages"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "This object counts invalid data request messages             received on this interface.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsStatusEntry 5 }   docsIfCmtsStatusT5Timeouts OBJECT-TYPE        SYNTAX      Counter32        UNITS       "timeouts"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "This object counts the number of times counter T5             expired on this interface.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 9-2."        ::= { docsIfCmtsStatusEntry 6 }Raftus & Cardona            Standards Track                    [Page 72]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   --   -- CM status table (within CMTS).   -- This table is implemented only at the CMTS.   -- It contains per-CM status information available in the CMTS.   --   docsIfCmtsCmStatusTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsCmStatusEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "A set of objects in the CMTS, maintained for each             cable modem connected to this CMTS."        ::= { docsIfCmtsObjects 3 }   docsIfCmtsCmStatusEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsCmStatusEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Status information for a single cable modem.             An entry in this table exists for each cable modem             that is connected to the CMTS implementing this table."        INDEX { docsIfCmtsCmStatusIndex }        ::= { docsIfCmtsCmStatusTable 1 }   DocsIfCmtsCmStatusEntry ::= SEQUENCE {            docsIfCmtsCmStatusIndex               Integer32,            docsIfCmtsCmStatusMacAddress          MacAddress,            docsIfCmtsCmStatusIpAddress        IpAddress, -- deprecated            docsIfCmtsCmStatusDownChannelIfIndex  InterfaceIndexOrZero,            docsIfCmtsCmStatusUpChannelIfIndex    InterfaceIndexOrZero,            docsIfCmtsCmStatusRxPower             TenthdBmV,            docsIfCmtsCmStatusTimingOffset        Unsigned32,            docsIfCmtsCmStatusEqualizationData    DocsEqualizerData,            docsIfCmtsCmStatusValue               INTEGER,            docsIfCmtsCmStatusUnerroreds          Counter32,            docsIfCmtsCmStatusCorrecteds          Counter32,            docsIfCmtsCmStatusUncorrectables      Counter32,            docsIfCmtsCmStatusSignalNoise         TenthdB,            docsIfCmtsCmStatusMicroreflections    Integer32,            docsIfCmtsCmStatusExtUnerroreds       Counter64,            docsIfCmtsCmStatusExtCorrecteds       Counter64,            docsIfCmtsCmStatusExtUncorrectables   Counter64,            docsIfCmtsCmStatusDocsisRegMode       DocsisQosVersion,            docsIfCmtsCmStatusModulationType      DocsisUpstreamType,            docsIfCmtsCmStatusInetAddressType     InetAddressType,            docsIfCmtsCmStatusInetAddress         InetAddress,Raftus & Cardona            Standards Track                    [Page 73]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfCmtsCmStatusValueLastUpdate     TimeStamp,            docsIfCmtsCmStatusHighResolutionTimingOffset Unsigned32        }   docsIfCmtsCmStatusIndex OBJECT-TYPE        SYNTAX      Integer32 (1..2147483647)        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Index value to uniquely identify an entry in this table.             For an individual cable modem, this index value SHOULD             NOT change during CMTS uptime."        ::= { docsIfCmtsCmStatusEntry 1 }   docsIfCmtsCmStatusMacAddress OBJECT-TYPE        SYNTAX      MacAddress        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "MAC address of the cable modem.  If the cable modem has             multiple MAC addresses, this is the MAC address associated             with the Cable interface."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 8.2.2."        ::= { docsIfCmtsCmStatusEntry 2 }   docsIfCmtsCmStatusIpAddress OBJECT-TYPE        SYNTAX      IpAddress        MAX-ACCESS  read-only        STATUS      deprecated        DESCRIPTION            "IP address of this cable modem.  If the cable modem has no             IP address assigned, or the IP address is unknown, this             object returns a value of 0.0.0.0.  If the cable modem has             multiple IP addresses, this object returns the IP address             associated with the Cable interface.             This object has been deprecated and replaced by             docsIfCmtsCmStatusInetAddressType and             docsIfCmtsCmStatusInetAddress, to enable IPv6 addressing             in the future."        ::= { docsIfCmtsCmStatusEntry 3 }   docsIfCmtsCmStatusDownChannelIfIndex OBJECT-TYPE        SYNTAX      InterfaceIndexOrZero        MAX-ACCESS  read-only        STATUS      currentRaftus & Cardona            Standards Track                    [Page 74]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "IfIndex of the downstream channel that this CM is             connected to.  If the downstream channel is unknown, this             object returns a value of zero."        ::= { docsIfCmtsCmStatusEntry 4 }   docsIfCmtsCmStatusUpChannelIfIndex OBJECT-TYPE        SYNTAX      InterfaceIndexOrZero        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION           "For DOCSIS 2.0, indicates the ifIndex of the logical            upstream channel (ifType 205) this CM is connected to.            For DOCSIS 1.x, indicates the ifIndex of the upstream             channel (ifType 129) this CM is connected to.             If the upstream channel is unknown, this object             returns a value of zero."        ::= { docsIfCmtsCmStatusEntry 5 }   docsIfCmtsCmStatusRxPower OBJECT-TYPE        SYNTAX      TenthdBmV        UNITS       "ThenthdBmV"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The receive power as perceived for upstream data from             this cable modem.             If the receive power is unknown, this object returns             a value of zero."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.18."        ::= { docsIfCmtsCmStatusEntry 6 }   docsIfCmtsCmStatusTimingOffset OBJECT-TYPE        SYNTAX      Unsigned32 (0..4294967295)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "A measure of the current round trip time for this CM.             Used for timing of CM upstream transmissions to ensure             synchronized arrivals at the CMTS.  Units are in terms             of (6.25 microseconds/64).  Returns zero if the value             is unknown.             For channels requiring finer resolution, please refer to             object docsIfCmtsCmStatusHighResolutionTimingOffset."        REFERENCERaftus & Cardona            Standards Track                    [Page 75]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.17."        ::= { docsIfCmtsCmStatusEntry 7 }   docsIfCmtsCmStatusEqualizationData OBJECT-TYPE        SYNTAX      DocsEqualizerData        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Equalization data for this CM, as measured by the CMTS.             Returns the zero-length OCTET STRING if the value is             unknown or if there is no equalization data available             or defined."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Figure 8-23."        ::= { docsIfCmtsCmStatusEntry 8 }   docsIfCmtsCmStatusValue OBJECT-TYPE        SYNTAX      INTEGER {            other(1),            ranging(2),            rangingAborted(3),            rangingComplete(4),            ipComplete(5),            registrationComplete(6),            accessDenied(7),            operational(8),            -- value 8 should not be used            registeredBPIInitializing(9)        }        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current cable modem connectivity state, as specified             in the RF Interface Specification.  Returned status             information is the CM status, as assumed by the CMTS,             and indicates the following events:             other(1)                Any state other than below.             ranging(2)                The CMTS has received an Initial Ranging Request                message from the CM, and the ranging process is not                yet complete.             rangingAborted(3)                The CMTS has sent a Ranging Abort message to the CM.Raftus & Cardona            Standards Track                    [Page 76]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             rangingComplete(4)                The CMTS has sent a Ranging Complete message to the CM.             ipComplete(5)                The CMTS has received a DHCP reply message and                forwarded it to the CM.             registrationComplete(6)                The CMTS has sent a Registration Response message to                the CM.             accessDenied(7)                The CMTS has sent a Registration Aborted message                to the CM.             operational(8)                Value 8 is considered reserved and should not be defined                in future revisions of this MIB module to avoid conflict                with documented implementations that support value 8 to                indicate operational state after completing the BPI                initialization process.             registeredBPIInitializing(9)                Baseline Privacy (BPI) is enabled and the CMTS is in the                process of completing BPI initialization.  This state                MAY last for a significant length of time if failures                occur during the initialization process.  After                completion of BPI initialization, the CMTS will report                registrationComplete(6).             The CMTS only needs to report states it is able to             detect."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 11.2."        ::= { docsIfCmtsCmStatusEntry 9 }   docsIfCmtsCmStatusUnerroreds OBJECT-TYPE        SYNTAX      Counter32        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received without error from this cable modem.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.4."        ::= { docsIfCmtsCmStatusEntry 10 }Raftus & Cardona            Standards Track                    [Page 77]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfCmtsCmStatusCorrecteds OBJECT-TYPE        SYNTAX      Counter32        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received with correctable errors from this             cable modem.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.4."        ::= { docsIfCmtsCmStatusEntry 11 }   docsIfCmtsCmStatusUncorrectables OBJECT-TYPE        SYNTAX      Counter32        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received with uncorrectable errors from this             cable modem.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.4."        ::= { docsIfCmtsCmStatusEntry 12 }   docsIfCmtsCmStatusSignalNoise OBJECT-TYPE        SYNTAX      TenthdB        UNITS       "TenthdB"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Signal/Noise ratio as perceived for upstream data from             this cable modem.             If the Signal/Noise is unknown, this object returns             a value of zero."        REFERENCE            "Data-Over-Cable Service Interface Specifications: RadioRaftus & Cardona            Standards Track                    [Page 78]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 4-1 and 4-2."        ::= { docsIfCmtsCmStatusEntry 13 }   docsIfCmtsCmStatusMicroreflections OBJECT-TYPE        SYNTAX      Integer32 (0..255)        UNITS       "-dBc"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Total microreflections, including in-channel response             as perceived on this interface, measured in dBc below             the signal level.             This object is not assumed to return an absolutely             accurate value, but it gives a rough indication             of microreflections received on this interface.             It is up to the implementer to provide information             as accurately as possible.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 4-1 and 4-2"        ::= { docsIfCmtsCmStatusEntry 14 }   docsIfCmtsCmStatusExtUnerroreds OBJECT-TYPE        SYNTAX      Counter64        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received without error from this cable modem.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.5."        ::= { docsIfCmtsCmStatusEntry 15 }   docsIfCmtsCmStatusExtCorrecteds OBJECT-TYPE        SYNTAX      Counter64        UNITS       "codewords"Raftus & Cardona            Standards Track                    [Page 79]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received with correctable errors from this             cable modem.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.5."        ::= { docsIfCmtsCmStatusEntry 16 }   docsIfCmtsCmStatusExtUncorrectables OBJECT-TYPE        SYNTAX      Counter64        UNITS       "codewords"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Codewords received with uncorrectable errors from this             cable modem.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.5."        ::= { docsIfCmtsCmStatusEntry 17 }   docsIfCmtsCmStatusDocsisRegMode OBJECT-TYPE           SYNTAX      DocsisQosVersion           MAX-ACCESS  read-only           STATUS      current           DESCRIPTION               "Indication of whether the CM has registered using 1.0                Class of Service or 1.1 Quality of Service."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Annex G."        ::= { docsIfCmtsCmStatusEntry 18 }   docsIfCmtsCmStatusModulationType OBJECT-TYPE         SYNTAX      DocsisUpstreamTypeRaftus & Cardona            Standards Track                    [Page 80]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006         MAX-ACCESS  read-only         STATUS      current         DESCRIPTION             "Indicates modulation type currently used by the CM.  Since              this object specifically identifies PHY mode, the shared              type is not permitted.  If the upstream channel is              unknown, this object returns a value of zero."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 8-19."         ::= { docsIfCmtsCmStatusEntry 19 }   docsIfCmtsCmStatusInetAddressType OBJECT-TYPE           SYNTAX      InetAddressType           MAX-ACCESS  read-only           STATUS      current           DESCRIPTION               "The type of internet address of                docsIfCmtsCmStatusInetAddress.  If the cable modem                internet address is unassigned or unknown, then the                value of this object is unknown(0)."           ::= { docsIfCmtsCmStatusEntry 20 }   docsIfCmtsCmStatusInetAddress OBJECT-TYPE           SYNTAX      InetAddress           MAX-ACCESS  read-only           STATUS      current           DESCRIPTION               "Internet address of this cable modem.  If the Cable                Modem has no Internet address assigned, or the Internet                address is unknown, the value of this object is the                zero-length OCTET STRING.  If the cable modem has                multiple Internet addresses, this object returns the                Internet address associated with the Cable                (i.e., RF MAC) interface."           ::= { docsIfCmtsCmStatusEntry 21 }   docsIfCmtsCmStatusValueLastUpdate OBJECT-TYPE           SYNTAX      TimeStamp           MAX-ACCESS  read-only           STATUS      current           DESCRIPTION               "The value of sysUpTime when docsIfCmtsCmStatusValue                was last updated."           ::= { docsIfCmtsCmStatusEntry 22 }   docsIfCmtsCmStatusHighResolutionTimingOffset OBJECT-TYPERaftus & Cardona            Standards Track                    [Page 81]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        SYNTAX      Unsigned32 (0..4294967295)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "A measure of the current round trip time for this CM.             Used for timing of CM upstream transmissions to ensure             synchronized arrivals at the CMTS.  Units are in terms             of (6.25 microseconds/(64*256)).  Returns zero if the value             is unknown.             This is the high resolution version of object             docsIfCmtsCmStatusTimingOffset, for channels requiring             finer resolution."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,Section 6.2.17."        ::= { docsIfCmtsCmStatusEntry 23 }   --   -- The CMTS Service Table.   --   docsIfCmtsServiceTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsServiceEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes the attributes of upstream service queues             in a Cable Modem Termination System."        ::= { docsIfCmtsObjects 4 }   docsIfCmtsServiceEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsServiceEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes the attributes of a single upstream bandwidth             service queue.             Entries in this table exist for each ifEntry with an             ifType of docsCableMaclayer(127), and for each service             queue (Service ID) within this MAC layer.             Entries in this table are created with the creation of             individual Service IDs by the MAC layer and removed             when a Service ID is removed."        INDEX { ifIndex, docsIfCmtsServiceId }        ::= { docsIfCmtsServiceTable 1 }   DocsIfCmtsServiceEntry ::= SEQUENCE {Raftus & Cardona            Standards Track                    [Page 82]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfCmtsServiceId               Integer32,            docsIfCmtsServiceCmStatusIndex    Integer32,  -- deprecated            docsIfCmtsServiceAdminStatus      INTEGER,            docsIfCmtsServiceQosProfile       Integer32,            docsIfCmtsServiceCreateTime       TimeStamp,            docsIfCmtsServiceInOctets         Counter32,            docsIfCmtsServiceInPackets        Counter32,            docsIfCmtsServiceNewCmStatusIndex Integer32        }   docsIfCmtsServiceId OBJECT-TYPE        SYNTAX      Integer32 (1..16383)        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Identifies a service queue for upstream bandwidth.  The             attributes of this service queue are shared between the             Cable Modem and the Cable Modem Termination System.             The CMTS allocates upstream bandwidth to this service             queue based on requests from the CM and on the class of             service associated with this queue."        ::= { docsIfCmtsServiceEntry 1 }   docsIfCmtsServiceCmStatusIndex OBJECT-TYPE        SYNTAX      Integer32 (0..65535)        MAX-ACCESS  read-only        STATUS      deprecated        DESCRIPTION            "Pointer to an entry in docsIfCmtsCmStatusTable identifying             the cable modem using this Service Queue.  If multiple             cable modems are using this Service Queue, the value of             this object is zero.             This object has been deprecated and replaced by             docsIfCmtsServiceNewCmStatusIndex, to fix a mismatch             of the value range with respect to docsIfCmtsCmStatusIndex             (1..2147483647)."        ::= { docsIfCmtsServiceEntry 2 }   docsIfCmtsServiceAdminStatus OBJECT-TYPE        SYNTAX      INTEGER {            enabled(1),            disabled(2),            destroyed(3) }        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "Allows a service class for a particular modem to be             suppressed, (re-)enabled, or deleted altogether."Raftus & Cardona            Standards Track                    [Page 83]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        ::= { docsIfCmtsServiceEntry 3 }   docsIfCmtsServiceQosProfile OBJECT-TYPE        SYNTAX      Integer32 (0..16383)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The index in docsIfQosProfileTable describing the quality             of service attributes associated with this particular             service.  If no associated docsIfQosProfileTable entry             exists, this object returns a value of zero."        ::= { docsIfCmtsServiceEntry 4 }   docsIfCmtsServiceCreateTime OBJECT-TYPE        SYNTAX      TimeStamp        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The value of sysUpTime when this entry was created."        ::= { docsIfCmtsServiceEntry 5 }   docsIfCmtsServiceInOctets OBJECT-TYPE        SYNTAX      Counter32        UNITS       "Bytes"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The cumulative number of Packet Data octets received             on this Service ID.  The count does not include the             size of the Cable MAC header.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsServiceEntry 6 }   docsIfCmtsServiceInPackets OBJECT-TYPE        SYNTAX      Counter32        UNITS       "packets"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The cumulative number of Packet Data packets received             on this Service ID.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."Raftus & Cardona            Standards Track                    [Page 84]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        ::= { docsIfCmtsServiceEntry 7 }   docsIfCmtsServiceNewCmStatusIndex OBJECT-TYPE        SYNTAX      Integer32 (0..2147483647)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Pointer (via docsIfCmtsCmStatusIndex) to an entry in             docsIfCmtsCmStatusTable identifying the cable modem             using this Service Queue.  If multiple cable modems are             using this Service Queue, the value of this object is             zero."        ::= { docsIfCmtsServiceEntry 8 }   --   -- The following table provides upstream channel modulation profiles.   -- Entries in this table can be   -- re-used by one or more upstream channels.  An upstream channel   -- will have a modulation profile for each value of   -- docsIfModIntervalUsageCode.   --   docsIfCmtsModulationTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsModulationEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes a modulation profile associated with one or more             upstream channels."        ::= { docsIfCmtsObjects 5 }   docsIfCmtsModulationEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsModulationEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Describes a modulation profile for an Interval Usage Code             for one or more upstream channels.             Entries in this table are created by the operator.             Initial default entries MAY be created at system             initialization time, which could report a value of             'permanent' or 'readOnly' for docsIfCmtsModStorageType.             A CMTS MAY reject the creation of additional Interval             Usage Codes for a modulation profile being defined at             Initialization time.             No individual objects have to be specified in order             to create an entry in this table.Raftus & Cardona            Standards Track                    [Page 85]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Note that some objects do not have DEFVAL clauses             but do have calculated defaults and need not be specified             during row creation."         INDEX { docsIfCmtsModIndex, docsIfCmtsModIntervalUsageCode}        ::= { docsIfCmtsModulationTable 1 }   DocsIfCmtsModulationEntry ::= SEQUENCE {            docsIfCmtsModIndex                    Integer32,            docsIfCmtsModIntervalUsageCode        INTEGER,            docsIfCmtsModControl                  RowStatus,            docsIfCmtsModType                     INTEGER,            docsIfCmtsModPreambleLen              Integer32,            docsIfCmtsModDifferentialEncoding     TruthValue,            docsIfCmtsModFECErrorCorrection       Integer32,            docsIfCmtsModFECCodewordLength        Integer32,            docsIfCmtsModScramblerSeed            Integer32,            docsIfCmtsModMaxBurstSize             Integer32,            docsIfCmtsModGuardTimeSize            Unsigned32,            docsIfCmtsModLastCodewordShortened    TruthValue,            docsIfCmtsModScrambler                TruthValue,            docsIfCmtsModByteInterleaverDepth     Unsigned32,            docsIfCmtsModByteInterleaverBlockSize Unsigned32,            docsIfCmtsModPreambleType             INTEGER,            docsIfCmtsModTcmErrorCorrectionOn     TruthValue,            docsIfCmtsModScdmaInterleaverStepSize Unsigned32,            docsIfCmtsModScdmaSpreaderEnable      TruthValue,            docsIfCmtsModScdmaSubframeCodes       Unsigned32,            docsIfCmtsModChannelType              DocsisUpstreamType,            docsIfCmtsModStorageType              StorageType        }   docsIfCmtsModIndex OBJECT-TYPE        SYNTAX       Integer32 (1..2147483647)        MAX-ACCESS   not-accessible        STATUS      current        DESCRIPTION             "An index into the Channel Modulation table representing              a group of Interval Usage Codes, all associated with the              same channel."        ::= { docsIfCmtsModulationEntry 1 }   docsIfCmtsModIntervalUsageCode OBJECT-TYPE        SYNTAX       INTEGER {            request(1),            requestData(2),            initialRanging(3),            periodicRanging(4),            shortData(5),Raftus & Cardona            Standards Track                    [Page 86]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            longData(6),            advPhyShortData(9),            advPhyLongData(10),            ugs(11)        }        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "An index into the Channel Modulation table that, when             grouped with other Interval Usage Codes, fully             instantiates all modulation sets for a given upstream             channel."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 8-20."        ::= { docsIfCmtsModulationEntry 2 }   docsIfCmtsModControl OBJECT-TYPE        SYNTAX      RowStatus        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Controls and reflects the status of rows in this table.             There is no restriction on the changing of values in this             table while their associated rows are active, with the             exception of:             1. If a modulation profile is being referenced by one                or more upstream channels, an attempt to set the value                of docsIfCmtsModChannelType returns an                'inconsistentValue' error.             2. If a modulation profile is being referenced by one                or more upstream channels, an attempt to set                docsIfCmtsModControl to destroy(6) or notInService(2)                returns an 'inconsistentValue' error."        ::= { docsIfCmtsModulationEntry 3 }   docsIfCmtsModType OBJECT-TYPE        SYNTAX      INTEGER {            other(1),            qpsk(2),            qam16(3),            qam8(4),            qam32(5),            qam64(6),            qam128(7)Raftus & Cardona            Standards Track                    [Page 87]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        }        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The modulation type used on this channel.  Returns             other(1) if the modulation type is not             qpsk, qam16, qam8, qam32, qam64, or qam128.             Type qam128 is used for SCDMA channels only.             See the reference for the modulation profiles             implied by different modulation types."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { qpsk }        ::= { docsIfCmtsModulationEntry 4 }   docsIfCmtsModPreambleLen OBJECT-TYPE        SYNTAX      Integer32 (0..1536)        UNITS       "bits"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The preamble length for this modulation profile in bits.             Default value is the minimum needed by the implementation             at the CMTS for the given modulation profile."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        ::= { docsIfCmtsModulationEntry 5 }   docsIfCmtsModDifferentialEncoding OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Specifies whether or not differential encoding is used             on this channel."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { false }        ::= { docsIfCmtsModulationEntry 6 }   docsIfCmtsModFECErrorCorrection OBJECT-TYPE        SYNTAX      Integer32 (0..16)Raftus & Cardona            Standards Track                    [Page 88]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        UNITS       "Bytes"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The number of correctable errored bytes (t) used in             forward error correction code.  The value of 0 indicates             that no correction is employed.  The number of check bytes             appended will be twice this value."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { 0 }        ::= { docsIfCmtsModulationEntry 7 }   docsIfCmtsModFECCodewordLength OBJECT-TYPE        SYNTAX      Integer32 (1..255)        UNITS       "Bytes"        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The number of data bytes (k) in the forward error             correction codeword.             This object is not used if docsIfCmtsModFECErrorCorrection             is zero."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { 32 }        ::= { docsIfCmtsModulationEntry 8 }   docsIfCmtsModScramblerSeed OBJECT-TYPE        SYNTAX      Integer32 (0..32767)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The 15-bit seed value for the scrambler polynomial."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 8-19."        DEFVAL { 0 }        ::= { docsIfCmtsModulationEntry 9 }   docsIfCmtsModMaxBurstSize OBJECT-TYPE        SYNTAX      Integer32 (0..255)        UNITS       "mini-slots"Raftus & Cardona            Standards Track                    [Page 89]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "The maximum number of mini-slots that can be transmitted             during this channel's burst time.  Returns zero if the             burst length is bounded by the allocation MAP rather than             by this profile.             Default value is 0, except for shortData, where it is 8."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 8-19."        ::= { docsIfCmtsModulationEntry 10 }   docsIfCmtsModGuardTimeSize OBJECT-TYPE        SYNTAX      Unsigned32        UNITS       "Symbol-times"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The number of symbol-times that MUST follow the end of             this channel's burst.  Default value is the minimum time             needed by the implementation for this modulation profile."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        ::= { docsIfCmtsModulationEntry 11 }   docsIfCmtsModLastCodewordShortened OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Indicates whether the last FEC codeword is truncated."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { true }        ::= { docsIfCmtsModulationEntry 12 }   docsIfCmtsModScrambler OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Indicates whether the scrambler is employed."Raftus & Cardona            Standards Track                    [Page 90]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { false }        ::= { docsIfCmtsModulationEntry 13 }   docsIfCmtsModByteInterleaverDepth OBJECT-TYPE        SYNTAX      Unsigned32        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "ATDMA Byte Interleaver Depth (Ir).  This object returns 1             for non-ATDMA profiles."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { 1 }        ::= { docsIfCmtsModulationEntry 14 }   docsIfCmtsModByteInterleaverBlockSize OBJECT-TYPE        SYNTAX      Unsigned32        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "ATDMA Byte Interleaver Block size (Br).  This object             returns zero for non-ATDMA profiles "        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { 18 }        ::= { docsIfCmtsModulationEntry 15 }   docsIfCmtsModPreambleType OBJECT-TYPE        SYNTAX       INTEGER {            unknown(0),            qpsk0(1),            qpsk1(2)        }        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Preamble type for DOCSIS 2.0 bursts.  The value             'unknown(0)' represents a row entry consisting only of             DOCSIS 1.x bursts"        REFERENCERaftus & Cardona            Standards Track                    [Page 91]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { qpsk0 }        ::= { docsIfCmtsModulationEntry 16 }   docsIfCmtsModTcmErrorCorrectionOn OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Trellis Code Modulation (TCM) On/Off.  This value returns             false for non-S-CDMA profiles."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { false }        ::= { docsIfCmtsModulationEntry 17 }   docsIfCmtsModScdmaInterleaverStepSize OBJECT-TYPE        SYNTAX      Unsigned32 (0 | 1..32)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            " S-CDMA Interleaver step size.  This value returns zero              for non-S-CDMA profiles."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        DEFVAL { 1 }        ::= { docsIfCmtsModulationEntry 18 }   docsIfCmtsModScdmaSpreaderEnable OBJECT-TYPE        SYNTAX      TruthValue        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            " S-CDMA spreader.  This value returns false for non-S-CDMA              profiles.  Default value for IUC 3 and 4 is OFF; for              all other IUCs it is ON."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Tables 6-7, and 8-19."        ::= { docsIfCmtsModulationEntry 19 }Raftus & Cardona            Standards Track                    [Page 92]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfCmtsModScdmaSubframeCodes OBJECT-TYPE        SYNTAX      Unsigned32 (0 | 1..128)        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            " S-CDMA sub-frame size.  This value returns zero              for non-S-CDMA profiles."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 6-7, and 8-19."        DEFVAL { 1 }        ::= { docsIfCmtsModulationEntry 20 }   docsIfCmtsModChannelType OBJECT-TYPE        SYNTAX      DocsisUpstreamType        MAX-ACCESS  read-create        STATUS      current        DESCRIPTION            "Describes the modulation channel type for this modulation             entry.             All the active entries in a modulation profile (that is all             active entries that share a common docsIfCmtsModIndex)             MUST have the same value of docsIfCmtsModChannelType."        REFERENCE            "Data-Over-Cable Service Interface Specifications: Radio             Frequency Interface Specification SP-RFIv2.0-I10-051209,             Table 8-19."        DEFVAL { tdma }        ::= { docsIfCmtsModulationEntry 21 }   docsIfCmtsModStorageType OBJECT-TYPE        SYNTAX       StorageType        MAX-ACCESS   read-only        STATUS       current        DESCRIPTION            "The storage type for this conceptual row.             Entries with this object set to permanent(4)             do not require write operations for read-write             objects."        DEFVAL      { nonVolatile }    ::= { docsIfCmtsModulationEntry 22 }   docsIfCmtsQosProfilePermissions OBJECT-TYPE        SYNTAX      BITS {            createByManagement(0),            updateByManagement(1),            createByModems(2)Raftus & Cardona            Standards Track                    [Page 93]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        }        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "This object specifies permitted methods of creating             entries in docsIfQosProfileTable.             createByManagement(0) is set if entries can be created             using SNMP.  updateByManagement(1) is set if updating             entries using SNMP is permitted.  createByModems(2)             is set if entries can be created based on information             in REG-REQ MAC messages received from cable modems.             Information in this object is only applicable if             docsIfQosProfileTable is implemented as read-create.             Otherwise, this object is implemented as read-only             and returns createByModems(2).             Either createByManagement(0) or updateByManagement(1)             MUST be set when writing to this object.             Note that BITS objects are encoded most significant bit             first.  For example, if bit 2 is set, the value of this             object is the octet string '20'H."        ::= { docsIfCmtsObjects 6 }   docsIfCmtsMacToCmTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsMacToCmEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "This is a table to provide a quick access index into the             docsIfCmtsCmStatusTable.  There is exactly one row in this             table for each row in the docsIfCmtsCmStatusTable.  In             general, the management station SHOULD use this table only             to get a pointer into the docsIfCmtsCmStatusTable (which             corresponds to the CM's RF interface MAC address) and             SHOULD not iterate (e.g., GetNext through) this table."        ::= { docsIfCmtsObjects 7 }   docsIfCmtsMacToCmEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsMacToCmEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "A row in the docsIfCmtsMacToCmTable.             An entry in this table exists for each cable modem             that is connected to the CMTS implementing this table."        INDEX   { docsIfCmtsCmMac }        ::= {docsIfCmtsMacToCmTable 1 }   DocsIfCmtsMacToCmEntry ::= SEQUENCE {Raftus & Cardona            Standards Track                    [Page 94]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006                docsIfCmtsCmMac     MacAddress,                docsIfCmtsCmPtr     Integer32        }   docsIfCmtsCmMac OBJECT-TYPE        SYNTAX      MacAddress        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "The RF side MAC address for the referenced CM (e.g., the             interface on the CM that has docsCableMacLayer(127) as             its ifType)."        ::= { docsIfCmtsMacToCmEntry 1 }   docsIfCmtsCmPtr OBJECT-TYPE        SYNTAX      Integer32 (1..2147483647)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "An row index into docsIfCmtsCmStatusTable.  When queried             with the correct instance value (e.g., a CM's MAC address),             returns the index in docsIfCmtsCmStatusTable that             represents that CM."        ::= { docsIfCmtsMacToCmEntry 2 }   -- The following independent object and associated table provide   -- operators with a mechanism to evaluate the load/utilization of   -- both upstream and downstream physical channels.  This information   -- may be used for capacity planning and incident analysis and may   -- be particularly helpful in provisioning of high value QOS.   --   -- Utilization is expressed as an index representing the calculated   -- percentage utilization of the upstream or downstream channel in   -- the most recent sampling interval (i.e., utilization interval).   -- Refer to the DESCRIPTION field of the   -- docsIfCmtsChannelUtUtilization object for definitions and   -- calculation details.   docsIfCmtsChannelUtilizationInterval OBJECT-TYPE        SYNTAX      Integer32 (0..86400)        UNITS       "seconds"        MAX-ACCESS  read-write        STATUS      current        DESCRIPTION            "The time interval in seconds over which the channel             utilization index is calculated.  All upstream/downstream             channels use the same             docsIfCmtsChannelUtilizationInterval.Raftus & Cardona            Standards Track                    [Page 95]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             Setting a value of zero disables utilization reporting.             A channel utilization index is calculated over a fixed             window applying to the most recent             docsIfCmtsChannelUtilizationInterval.  It would therefore             be prudent to use a relatively short             docsIfCmtsChannelUtilizationInterval.             It is a vendor decision whether to reset the timer when             docsIfCmtsChannelUtilizationInterval is changed during a             utilization sampling period."        ::= { docsIfCmtsObjects 8 }   docsIfCmtsChannelUtilizationTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsChannelUtilizationEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Reports utilization statistics for attached upstream and             downstream physical channels."        ::= { docsIfCmtsObjects 9 }   docsIfCmtsChannelUtilizationEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsChannelUtilizationEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "Utilization statistics for a single upstream or downstream             physical channel.  An entry exists in this table for each             ifEntry with an ifType equal to             docsCableDownstream (128)             or docsCableUpstream (129)."        INDEX  { ifIndex, docsIfCmtsChannelUtIfType,             docsIfCmtsChannelUtId }        ::= { docsIfCmtsChannelUtilizationTable 1 }   DocsIfCmtsChannelUtilizationEntry ::= SEQUENCE {            docsIfCmtsChannelUtIfType         IANAifType,            docsIfCmtsChannelUtId             Integer32,            docsIfCmtsChannelUtUtilization    Integer32        }   docsIfCmtsChannelUtIfType OBJECT-TYPE        SYNTAX       IANAifType        MAX-ACCESS   not-accessible        STATUS       current        DESCRIPTION            "The secondary index into this table.  Indicates the IANA             interface type associated with this physical channel.             Only docsCableDownstream (128) andRaftus & Cardona            Standards Track                    [Page 96]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             docsCableUpstream (129) are valid."        ::= { docsIfCmtsChannelUtilizationEntry 1 }   docsIfCmtsChannelUtId OBJECT-TYPE        SYNTAX       Integer32 (0..255)        MAX-ACCESS   not-accessible        STATUS       current        DESCRIPTION             "The tertiary index into this table.  Indicates the CMTS              identifier for this physical channel."        ::= { docsIfCmtsChannelUtilizationEntry 2 }   docsIfCmtsChannelUtUtilization OBJECT-TYPE        SYNTAX       Integer32 (0..100)        UNITS        "percent"        MAX-ACCESS   read-only        STATUS       current        DESCRIPTION            "The calculated and truncated utilization index for this             physical upstream or downstream channel, accurate as of             the most recent docsIfCmtsChannelUtilizationInterval.             Upstream Channel Utilization Index:             The upstream channel utilization index is expressed as a             percentage of mini-slots utilized on the physical channel,             regardless of burst type.  For an Initial Maintenance             region, the mini-slots for the complete region are             considered utilized if the CMTS received an upstream             burst within the region from any CM on the physical             channel.  For contention REQ and REQ/DATA regions, the             mini-slots for a transmission opportunity within the             region are considered utilized if the CMTS received an             upstream burst within the opportunity from any CM on the             physical channel.  For all other regions, utilized             mini-slots are those in which the CMTS granted             bandwidth to any unicast SID on the physical channel.             For an upstream interface that has multiple logical             upstream channels enabled, the utilization index is a             weighted sum of utilization indices for the logical             channels.  The weight for each utilization index is the             percentage of upstream mini-slots allocated for the             corresponding logical channel.             Example:             If 75% of bandwidth is allocated to the first logical             channel and 25% to the second, and the utilization             indices for each are 60 and 40, respectively, theRaftus & Cardona            Standards Track                    [Page 97]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             utilization index for the upstream physical channel is             (60 * 0.75) + (40 * 0.25) = 55.  This figure             applies to the most recent utilization interval.             Downstream Channel Utilization Index:             The downstream channel utilization index is a percentage             expressing the ratio between bytes used to transmit data             versus the total number of bytes transmitted in the raw             bandwidth of the MPEG channel.  As with the upstream             utilization index, the calculated value represents             the most recent utilization interval.             Formula:             Downstream utilization index =             (100 * (data bytes / raw bytes))             Definitions:             Data bytes:    Number of bytes transmitted as data in the                            docsIfCmtsChannelUtilizationInterval.                            Identical to docsIfCmtsDownChannelCtrUsed                            Bytes measured over the utilization                            interval.             Raw bandwidth: Total number of bytes available for                            transmitting data, not including bytes                            used for headers and other overhead.             Raw bytes:     (raw bandwidth *                            docsIfCmtsChannelUtilizationInterval).                            Identical to docsIfCmtsDownChannelCtrTotal                            Bytes measured over the utilization                            interval."        ::= { docsIfCmtsChannelUtilizationEntry 3 }   -- The following table provides operators with input data   -- appropriate for calculating downstream channel utilization.   -- Operators may use the docsIfCmtsChannelUtilizationTable or   -- perform their own polling of the   -- docsIfCmtsDownChannelCounterTable objects to characterize   -- their downstream channel usage.  The 32-bit counter objects are   -- included to provide backward compatibility with SNMPv1 managers,   -- which cannot access 64-bit counter objects.   docsIfCmtsDownChannelCounterTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsDownChannelCounterEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "This table is implemented at the CMTS to collect             downstream channel statistics for utilizationRaftus & Cardona            Standards Track                    [Page 98]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             calculations."        ::= { docsIfCmtsObjects 10 }   docsIfCmtsDownChannelCounterEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsDownChannelCounterEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "An entry provides a list of traffic counters for a single             downstream channel.             An entry in this table exists for each ifEntry with an             ifType of docsCableDownstream(128)."        INDEX { ifIndex }        ::= { docsIfCmtsDownChannelCounterTable 1 }   DocsIfCmtsDownChannelCounterEntry ::= SEQUENCE {            docsIfCmtsDownChnlCtrId              Integer32,            docsIfCmtsDownChnlCtrTotalBytes      Counter32,            docsIfCmtsDownChnlCtrUsedBytes       Counter32,            docsIfCmtsDownChnlCtrExtTotalBytes   Counter64,            docsIfCmtsDownChnlCtrExtUsedBytes    Counter64        }   docsIfCmtsDownChnlCtrId OBJECT-TYPE        SYNTAX      Integer32 (0..255)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The Cable Modem Termination System identification             of the downstream channel within this particular MAC             interface.  If the interface is down, the object returns             the most current value.  If the downstream channel ID is             unknown, this object returns a value of 0."        ::= { docsIfCmtsDownChannelCounterEntry 1 }   docsIfCmtsDownChnlCtrTotalBytes OBJECT-TYPE        SYNTAX      Counter32        UNITS       "Bytes"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "At the CMTS, the total number of bytes in the Payload             portion of MPEG Packets (i.e., not including MPEG header             or pointer_field) transported by this downstream channel.             This is the 32-bit version of             docsIfCmtsDownChnlCtrExtTotalBytes, included to provide             back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occurRaftus & Cardona            Standards Track                    [Page 99]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsDownChannelCounterEntry 2 }   docsIfCmtsDownChnlCtrUsedBytes OBJECT-TYPE        SYNTAX      Counter32        UNITS       "Bytes"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "At the CMTS, the total number of DOCSIS data bytes             transported by this downstream channel.             The number of data bytes is defined as the total number             of bytes transported in DOCSIS payloads minus the number             of stuff bytes transported in DOCSIS payloads.             This is the 32-bit version of             docsIfCmtsDownChnlCtrExtUsedBytes, included to provide             back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsDownChannelCounterEntry 3 }   docsIfCmtsDownChnlCtrExtTotalBytes OBJECT-TYPE        SYNTAX      Counter64        UNITS       "Bytes"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "At the CMTS, the total number of bytes in the Payload             portion of MPEG Packets (i.e., not including MPEG header             or pointer_field) transported by this downstream             channel.             This is the 64-bit version of             docsIfCmtsDownChnlCtrTotalBytes and will not be             accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsDownChannelCounterEntry 4 }   docsIfCmtsDownChnlCtrExtUsedBytes OBJECT-TYPE        SYNTAX      Counter64        UNITS       "Bytes"        MAX-ACCESS  read-onlyRaftus & Cardona            Standards Track                   [Page 100]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        STATUS      current        DESCRIPTION            "At the CMTS, the total number of DOCSIS data bytes             transported by this downstream channel.  The number             of data bytes is defined as the total number of bytes             transported in DOCSIS payloads minus the number of             stuff bytes transported in DOCSIS payloads.             This is the 64-bit version of             docsIfCmtsDownChnlCtrUsedBytes and will not be accessible             to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsDownChannelCounterEntry 5 }   -- The following table provides operators with input data appropriate   -- for calculating upstream channel utilization, and for determining   -- the traffic characteristics of upstream channels.  Operators may   -- use the docsIfCmtsChannelUtilizationTable or perform their own   -- polling of the docsIfCmtsUpChannelCounterTable objects for   -- utilization determination.   -- The first four 32 and 64 objects in this table are mandatory.   -- Vendors may choose to implement the remaining optional objects to   -- provide operators with finer characterization of upstream channel   -- traffic patterns.  The 32-bit counter objects are included to   -- provide backward compatibility with SNMPv1 managers, which cannot   -- access 64-bit counter objects.   docsIfCmtsUpChannelCounterTable OBJECT-TYPE        SYNTAX      SEQUENCE OF DocsIfCmtsUpChannelCounterEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "This table is implemented at the CMTS to provide upstream             channel statistics appropriate for channel utilization             calculations."        ::= { docsIfCmtsObjects 11 }   docsIfCmtsUpChannelCounterEntry OBJECT-TYPE        SYNTAX      DocsIfCmtsUpChannelCounterEntry        MAX-ACCESS  not-accessible        STATUS      current        DESCRIPTION            "List of traffic statistics for a single upstream channel.             For DOCSIS 2.0 CMTSs, an entry in this table             exists for each ifEntry with an ifType of             docsCableUpstreamChannel (205).Raftus & Cardona            Standards Track                   [Page 101]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             For DOCSIS 1.x CMTSs, an entry in this table             exists for each ifEntry with an ifType of             docsCableUpstream (129)."        INDEX { ifIndex }        ::= { docsIfCmtsUpChannelCounterTable 1 }   DocsIfCmtsUpChannelCounterEntry ::= SEQUENCE {            docsIfCmtsUpChnlCtrId                          Integer32,            docsIfCmtsUpChnlCtrTotalMslots                 Counter32,            docsIfCmtsUpChnlCtrUcastGrantedMslots          Counter32,            docsIfCmtsUpChnlCtrTotalCntnMslots             Counter32,            docsIfCmtsUpChnlCtrUsedCntnMslots              Counter32,            docsIfCmtsUpChnlCtrExtTotalMslots              Counter64,            docsIfCmtsUpChnlCtrExtUcastGrantedMslots       Counter64,            docsIfCmtsUpChnlCtrExtTotalCntnMslots          Counter64,            docsIfCmtsUpChnlCtrExtUsedCntnMslots           Counter64,            docsIfCmtsUpChnlCtrCollCntnMslots              Counter32,            docsIfCmtsUpChnlCtrTotalCntnReqMslots          Counter32,            docsIfCmtsUpChnlCtrUsedCntnReqMslots           Counter32,            docsIfCmtsUpChnlCtrCollCntnReqMslots           Counter32,            docsIfCmtsUpChnlCtrTotalCntnReqDataMslots      Counter32,            docsIfCmtsUpChnlCtrUsedCntnReqDataMslots       Counter32,            docsIfCmtsUpChnlCtrCollCntnReqDataMslots       Counter32,            docsIfCmtsUpChnlCtrTotalCntnInitMaintMslots    Counter32,            docsIfCmtsUpChnlCtrUsedCntnInitMaintMslots     Counter32,            docsIfCmtsUpChnlCtrCollCntnInitMaintMslots     Counter32,            docsIfCmtsUpChnlCtrExtCollCntnMslots           Counter64,            docsIfCmtsUpChnlCtrExtTotalCntnReqMslots       Counter64,            docsIfCmtsUpChnlCtrExtUsedCntnReqMslots        Counter64,            docsIfCmtsUpChnlCtrExtCollCntnReqMslots        Counter64,            docsIfCmtsUpChnlCtrExtTotalCntnReqDataMslots   Counter64,            docsIfCmtsUpChnlCtrExtUsedCntnReqDataMslots    Counter64,            docsIfCmtsUpChnlCtrExtCollCntnReqDataMslots    Counter64,            docsIfCmtsUpChnlCtrExtTotalCntnInitMaintMslots Counter64,            docsIfCmtsUpChnlCtrExtUsedCntnInitMaintMslots  Counter64,            docsIfCmtsUpChnlCtrExtCollCntnInitMaintMslots  Counter64        }   docsIfCmtsUpChnlCtrId OBJECT-TYPE        SYNTAX      Integer32 (0..255)        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "The CMTS identification of the upstream channel."        ::= { docsIfCmtsUpChannelCounterEntry 1 }   docsIfCmtsUpChnlCtrTotalMslots OBJECT-TYPE        SYNTAX      Counter32Raftus & Cardona            Standards Track                   [Page 102]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of all mini-slots             defined for this upstream logical channel.  This count             includes all IUCs and SIDs, even those allocated to the             NULL SID for a 2.0 logical channel that is inactive.  This             is the 32-bit version of docsIfCmtsUpChnlCtrExtTotalMslots             and is included for back compatibility with SNMPv1             managers.  Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 2 }   docsIfCmtsUpChnlCtrUcastGrantedMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of unicast             granted mini-slots on the upstream logical channel,             regardless of burst type.  Unicast granted mini-slots are             those in which the CMTS assigned bandwidth to any unicast             SID on the logical channel.  However, this object does not             include minis-lots for reserved IUCs, or grants to SIDs             designated as meaning 'no CM'.  This is the 32-bit version             of docsIfCmtsUpChnlCtrExtUcastGrantedMslots, and is             included for back compatibility with SNMPv1 managers.             Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 3 }   docsIfCmtsUpChnlCtrTotalCntnMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             mini-slots defined for this upstream logical channel.  This             count includes all mini-slots assigned to a broadcast orRaftus & Cardona            Standards Track                   [Page 103]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             multicast SID on the logical channel.  This is the 32-bit             version of docsIfCmtsUpChnlCtrExtTotalCntnMslots, and is             included for back compatibility with SNMPv1 managers.             Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 4 }   docsIfCmtsUpChnlCtrUsedCntnMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             mini-slots utilized on the upstream logical channel.  For             contention regions, utilized mini-slots are those in which             the CMTS correctly received an upstream burst from any CM             on the upstream logical channel.  This is the 32-bit             version of docsIfCmtsUpChnlCtrExtUsedCntnMslots and is             included for back compatibility with SNMPv1 managers.             Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 5 }   docsIfCmtsUpChnlCtrExtTotalMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of all mini-slots             defined for this upstream logical channel.  This count             includes all IUCs and SIDs, even those allocated to the             NULL SID for a 2.0 logical channel that is inactive.  This             is the 64-bit version of docsIfCmtsUpChnlCtrTotalMslots             and will not be accessible to SNMPv1 managers.             Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 6 }Raftus & Cardona            Standards Track                   [Page 104]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   docsIfCmtsUpChnlCtrExtUcastGrantedMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of unicast             granted mini-slots on the upstream logical channel,             regardless of burst type.  Unicast granted mini-slots are             those in which the CMTS assigned bandwidth to any unicast             SID on the logical channel.  However, this object does not             include mini-slots for reserved IUCs, or grants to SIDs             designated as meaning 'no CM'.  This is the 64-bit version             of docsIfCmtsUpChnlCtrUcastGrantedMslots and will not be             accessible to SNMPv1 managers.             Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 7 }   docsIfCmtsUpChnlCtrExtTotalCntnMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             mini-slots defined for this upstream logical channel.  This             count includes all mini-slots assigned to a broadcast or             multicast SID on the logical channel.  This is the 64-bit             version of docsIfCmtsUpChnlCtrTotalCntnMslots and will             not be accessible to SNMPv1 managers.             Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 8 }   docsIfCmtsUpChnlCtrExtUsedCntnMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contentionRaftus & Cardona            Standards Track                   [Page 105]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             mini-slots utilized on the upstream logical channel.  For             contention regions, utilized mini-slots are those in which             the CMTS correctly received an upstream burst from any CM             on the upstream logical channel.  This is the 64-bit             version of docsIfCmtsUpChnlCtrUsedCntnMslots and will not             be accessible to SNMPv1 managers.             Support for this object is mandatory.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 9 }   docsIfCmtsUpChnlCtrCollCntnMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             mini-slots subjected to collisions on the upstream logical             channel.  For contention regions, these are the mini-slots             applicable to bursts that the CMTS detected but could not             correctly receive.  This is the 32-bit version of             docsIfCmtsUpChnlCtrExtCollCntnMslots and is included for             back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 10 }   docsIfCmtsUpChnlCtrTotalCntnReqMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request mini-slots defined for this upstream logical             channel.  This count includes all mini-slots for IUC1             assigned to a broadcast or multicast SID on the logical             channel.  This is the 32-bit version of             docsIfCmtsUpChnlCtrExtTotalCntnReqMslots and is included             for back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value ofRaftus & Cardona            Standards Track                   [Page 106]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 11 }   docsIfCmtsUpChnlCtrUsedCntnReqMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request mini-slots utilized on this upstream logical             channel.  This count includes all contention mini-slots for             IUC1 applicable to bursts that the CMTS correctly             received.  This is the 32-bit version of             docsIfCmtsUpChnlCtrExtUsedCntnReqMslots and is included             for back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 12 }   docsIfCmtsUpChnlCtrCollCntnReqMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request mini-slots subjected to collisions on this upstream             logical channel.  This includes all contention mini-slots             for IUC1 applicable to bursts that the CMTS detected but             could not correctly receive.  This is the 32-bit version of             docsIfCmtsUpChnlCtrExtCollCntnReqMslots and is included             for back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 13 }   docsIfCmtsUpChnlCtrTotalCntnReqDataMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contentionRaftus & Cardona            Standards Track                   [Page 107]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             request data mini-slots defined for this upstream logical             channel.  This count includes all mini-slots for IUC2             assigned to a broadcast or multicast SID on the logical             channel.  This is the 32-bit version of             docsIfCmtsUpChnlCtrExtTotalCntnReqDataMslots and is             included for back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 14 }   docsIfCmtsUpChnlCtrUsedCntnReqDataMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"   MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request data mini-slots utilized on this upstream logical             channel.  This includes all contention mini-slots for IUC2             applicable to bursts that the CMTS correctly received.             This is the 32-bit version of             docsIfCmtsUpChnlCtrExtUsedCntnReqDataMslots and is             included for back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 15 }   docsIfCmtsUpChnlCtrCollCntnReqDataMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request data mini-slots subjected to collisions on this             upstream logical channel.  This includes all contention             mini-slots for IUC2 applicable to bursts that the CMTS             detected, but could not correctly receive.  This is the             32-bit version of             docsIfCmtsUpChnlCtrExtCollCntnReqDataMslots and is             included for back compatibility with SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value ofRaftus & Cardona            Standards Track                   [Page 108]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 16 }   docsIfCmtsUpChnlCtrTotalCntnInitMaintMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             initial maintenance mini-slots defined for this upstream             logical channel.  This includes all mini-slots for IUC3             assigned to a broadcast or multicast SID on the logical             channel.  This is the 32-bit version of             docsIfCmtsUpChnlCtrExtTotalCntnInitMaintMslots             and is included for back compatibility with SNMPv1             managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 17 }   docsIfCmtsUpChnlCtrUsedCntnInitMaintMslots OBJECT-TYPE        SYNTAX      Counter32        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             initial maintenance mini-slots utilized on this upstream             logical channel.  This includes all contention mini-slots             for IUC3 applicable to bursts that the CMTS correctly             received.  This is the 32-bit version of             docsIfCmtsUpChnlCtrExtUsedCntnInitMaintMslots             and is included for back compatibility with SNMPv1             managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 18 }   docsIfCmtsUpChnlCtrCollCntnInitMaintMslots OBJECT-TYPE        SYNTAX      Counter32        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTIONRaftus & Cardona            Standards Track                   [Page 109]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "Current count, from CMTS initialization, of contention             initial maintenance mini-slots subjected to collisions on             this upstream logical channel.  This includes all             contention mini-slots for IUC3 applicable to bursts that             the CMTS detected, but could not correctly receive.             This is the 32-bit version of             docsIfCmtsUpChnlCtrExtCollCntnInitMaintMslots             and is included for back compatibility with SNMPv1             managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 19 }   docsIfCmtsUpChnlCtrExtCollCntnMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of collision             contention mini-slots on the upstream logical channel.             For contention regions, these are the mini-slots applicable             to bursts that the CMTS detected, but could not correctly             receive.  This is the 64-bit version of             docsIfCmtsUpChnlCtrCollCntnMslots and will not be             accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 20 }   docsIfCmtsUpChnlCtrExtTotalCntnReqMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request mini-slots defined for this upstream logical             channel.  This count includes all mini-slots for IUC1             assigned to a broadcast or multicast SID on the logical             channel.  This is the 64-bit version of             docsIfCmtsUpChnlCtrTotalCntnReqMslots and will not be             accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occurRaftus & Cardona            Standards Track                   [Page 110]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 21 }   docsIfCmtsUpChnlCtrExtUsedCntnReqMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request mini-slots utilized on this upstream logical             channel.  This count includes all contention mini-slots for             IUC1 applicable to bursts that the CMTS correctly             received.  This is the 64-bit version of             docsIfCmtsUpChnlCtrUsedCntnReqMslots and will not be             accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 22 }   docsIfCmtsUpChnlCtrExtCollCntnReqMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request mini-slots subjected to collisions on this upstream             logical channel.  This includes all contention mini-slots             for IUC1 applicable to bursts that the CMTS detected,             but could not correctly receive.  This is the 64-bit             version of docsIfCmtsUpChnlCtrCollCntnReqMslots and will             not be accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 23 }   docsIfCmtsUpChnlCtrExtTotalCntnReqDataMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      currentRaftus & Cardona            Standards Track                   [Page 111]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "Current count, from CMTS initialization, of contention             request data mini-slots defined for this upstream logical             channel.  This count includes all mini-slots for IUC2             assigned to a broadcast or multicast SID on the logical             channel.  This is the 64-bit version of             docsIfCmtsUpChnlCtrTotalCntnReqDataMslots and will not be             accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 24 }   docsIfCmtsUpChnlCtrExtUsedCntnReqDataMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request data mini-slots utilized on this upstream logical             channel.  This includes all contention mini-slots for IUC2             applicable to bursts that the CMTS correctly received.             This is the 64-bit version of             docsIfCmtsUpChnlCtrUsedCntnReqDataMslots and will not be             accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 25 }   docsIfCmtsUpChnlCtrExtCollCntnReqDataMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of contention             request data mini-slots subjected to collisions on this             upstream logical channel.  This includes all contention             mini-slots for IUC2 applicable to bursts that the CMTS             detected, but could not correctly receive.  This is the             64-bit version of             docsIfCmtsUpChnlCtrCollCntnReqDataMslots             and will not be accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occurRaftus & Cardona            Standards Track                   [Page 112]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 26 }   docsIfCmtsUpChnlCtrExtTotalCntnInitMaintMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of initial             maintenance mini-slots defined for this upstream logical             channel.  This count includes all mini-slots for IUC3             assigned to a broadcast or multicast SID on the logical             channel.  This is the 64-bit version of             docsIfCmtsUpChnlCtrTotalCntnInitMaintMslots             and will not be accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 27 }   docsIfCmtsUpChnlCtrExtUsedCntnInitMaintMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "Current count, from CMTS initialization, of initial             maintenance mini-slots utilized on this upstream logical             channel.  This includes all contention mini-slots for IUC3             applicable to bursts that the CMTS correctly received.             This is the 64-bit version of             docsIfCmtsUpChnlCtrUsedCntnInitMaintMslots             and will not be accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 28 }   docsIfCmtsUpChnlCtrExtCollCntnInitMaintMslots OBJECT-TYPE        SYNTAX      Counter64        UNITS       "mini-slots"        MAX-ACCESS  read-only        STATUS      currentRaftus & Cardona            Standards Track                   [Page 113]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "Current count, from CMTS initialization, of contention             initial maintenance mini-slots subjected to collisions on             this upstream logical channel.  This includes all             contention mini-slots for IUC3 applicable to bursts that             the CMTS detected, but could not correctly receive.             This is the 64-bit version of             docsIfCmtsUpChnlCtrCollCntnInitMaintMslots and will not             be accessible to SNMPv1 managers.             Discontinuities in the value of this counter can occur             at reinitialization of the managed system, and at other             times as indicated by the value of             ifCounterDiscontinuityTime for the associated ifIndex."        ::= { docsIfCmtsUpChannelCounterEntry 29 }   --   -- notification group is for future extension.   --   docsIfNotification OBJECT IDENTIFIER     ::= { docsIfMib 2 }   --   -- MIB Compliance statements.   --   --   -- Conformance definitions   --   docsIfConformance  OBJECT IDENTIFIER     ::= { docsIfMib 3 }   docsIfCompliances  OBJECT IDENTIFIER     ::= { docsIfConformance 1 }   docsIfGroups       OBJECT IDENTIFIER     ::= { docsIfConformance 2 }   docsIfBasicCompliance MODULE-COMPLIANCE        STATUS      deprecated        DESCRIPTION            "The compliance statement for devices that implement             DOCSIS 1.x compliant Radio Frequency Interfaces."   MODULE  -- docsIfMib   -- unconditionally mandatory groups   MANDATORY-GROUPS {        docsIfBasicGroup        }   -- conditionally mandatory group   GROUP docsIfCmGroupRaftus & Cardona            Standards Track                   [Page 114]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "This group is implemented only in cable modems, not in             cable modem termination systems."   -- conditionally mandatory group   GROUP docsIfCmtsGroup        DESCRIPTION            "This group is implemented only in cable modem termination             systems, not in cable modems."   OBJECT  docsIfDownChannelFrequency        WRITE-SYNTAX Integer32 (54000000..860000000)        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems.  The values above are             appropriate for a cable plant using a Sub-Split channel             plan.  If DOCSIS is extended to cover other types of             channel plans (and frequency allocations), this object             will be modified accordingly."   OBJECT  docsIfDownChannelWidth        WRITE-SYNTAX Integer32 (6000000)        MIN-ACCESS  read-only        DESCRIPTION            "It is important to implement this object as read-only.             In cable modems, this object is always implemented as             read-only.  The above value is appropriate for cable             plants running under NTSC (National Television             Standards Committee) standards.  If DOCSIS is extended to             work with other standards (e.g., European standards), this             object will be modified accordingly."   OBJECT  docsIfDownChannelModulation        WRITE-SYNTAX INTEGER {                               qam64 (3),                               qam256 (4)                             }        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfDownChannelInterleave        WRITE-SYNTAX INTEGER {                    taps8Increment16(3),                    taps16Increment8(4),                    taps32Increment4(5),Raftus & Cardona            Standards Track                   [Page 115]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006                    taps64Increment2(6),                    taps128Increment1(7)                     }        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfDownChannelPower        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelFrequency        WRITE-SYNTAX Integer32 (5000000..42000000)        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems.  The values above are             appropriate for a cable plant using a Sub-Split channel             plan.  If DOCSIS is extended to cover other types of             channel plans (and frequency allocations), this object             will be modified accordingly."   OBJECT  docsIfUpChannelWidth        WRITE-SYNTAX Integer32 (200000..3200000)        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems.  The above value is appropriate             for cable plants running under NTSC (National Television             Standards Committee) standards.  If DOCSIS is extended to             work with other standards (e.g., European standards), this             object will be modified accordingly."   OBJECT  docsIfUpChannelModulationProfile        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelSlotSize        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."Raftus & Cardona            Standards Track                   [Page 116]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   OBJECT  docsIfUpChannelRangingBackoffStart        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelRangingBackoffEnd        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelTxBackoffStart        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelTxBackoffEnd        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfQosProfPriority        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfMaxUpBandwidth        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfGuarUpBandwidth        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfMaxDownBandwidth        MIN-ACCESS  read-only        DESCRIPTIONRaftus & Cardona            Standards Track                   [Page 117]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfMaxTxBurst        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfBaselinePrivacy        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfStatus        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfCmtsServiceAdminStatus        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsSyncInterval        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsUcdInterval        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsInsertInterval        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsInvitedRangingAttempts        MIN-ACCESS  read-only        DESCRIPTIONRaftus & Cardona            Standards Track                   [Page 118]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsQosProfilePermissions        WRITE-SYNTAX     BITS {            createByManagement(0),            updateByManagement(1)           }        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT docsIfCmtsModType        WRITE-SYNTAX INTEGER {                        qpsk (2),                        qam16 (3)                         }        DESCRIPTION            "A management station MAY only set 16QAM or QPSK modulation,             but others might be possible, based on device             configuration."   OBJECT  docsIfCmtsModPreambleLen        SYNTAX Integer32 (0..1024)        DESCRIPTION            "The range of the values for this MODULE-COMPLIANCE             is 0..1024."   OBJECT  docsIfCmtsModFECErrorCorrection           SYNTAX Integer32 (0..10)           DESCRIPTION               "The range of the values for this MODULE-COMPLIANCE                is 0..10."        ::= { docsIfCompliances 1 }   docsIfBasicComplianceV2 MODULE-COMPLIANCE        STATUS      current        DESCRIPTION            "The compliance statement for devices that implement             DOCSIS 2.0 Radio Frequency Interfaces."   MODULE  -- docsIfMib   -- unconditionally mandatory groups   MANDATORY-GROUPS {        docsIfBasicGroupV2        }Raftus & Cardona            Standards Track                   [Page 119]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   -- conditionally mandatory group   GROUP docsIfCmGroupV2        DESCRIPTION            "This group is implemented only in cable modems, not in             cable modem termination systems."   -- conditionally mandatory group   GROUP docsIfCmtsGroupV2        DESCRIPTION            "This group is implemented only in cable modem termination             systems, not in cable modems."   OBJECT  docsIfDownChannelFrequency        WRITE-SYNTAX Integer32 (47000000..862000000)        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems.             A range of 54MHz to 860MHz is appropriate for a cable             plant using a North American Sub-Split channel plan.             The spectrum range has been expanded to accommodate             a lower edge of 47MHz and an upper edge of 862MHz             for some European channel plans.             If DOCSIS is extended to cover other types of channel             plans (and frequency allocations), this object will be             modified accordingly."   OBJECT  docsIfDownChannelWidth        WRITE-SYNTAX Integer32 (6000000 | 8000000)        MIN-ACCESS  read-only        DESCRIPTION            "It is important to implement this object as read-only.             In cable modems, this object is always implemented as             read-only.  The value of 6 MHz is appropriate for cable             plants running under NTSC (National Television             Standards Committee) standards.  The value of 8 MHz is             appropriate for cable plants running under ETSI             standards.  For other regional standards, this             object will be modified accordingly."   OBJECT  docsIfDownChannelModulation        WRITE-SYNTAX INTEGER {                               qam64 (3),                               qam256 (4)                             }        MIN-ACCESS  read-only        DESCRIPTIONRaftus & Cardona            Standards Track                   [Page 120]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfDownChannelInterleave        WRITE-SYNTAX INTEGER {                    taps8Increment16(3),                    taps16Increment8(4),                    taps32Increment4(5),                    taps64Increment2(6),                    taps128Increment1(7),                    taps12increment17(8)                     }        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfDownChannelPower        MIN-ACCESS  read-only        DESCRIPTION            "Read-write in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelFrequency        WRITE-SYNTAX Integer32 (5000000..65000000)        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems.             A range of 5MHz to 42MHz is appropriate for a cable             plant using a North American Sub-Split channel plan.             The spectrum range has been expanded to accommodate             an upper edge of 65MHz for some European channel plans.             If DOCSIS is extended to cover other types of channel             plans (and frequency allocations), this object will             be modified accordingly."   OBJECT  docsIfUpChannelWidth        WRITE-SYNTAX Integer32 (200000..6400000)        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems,             read-only in cable modems.  The above value is appropriate             for cable plants running under NTSC (National Television             Standards Committee) standards.  If DOCSIS is extended to             work with other standards (e.g., European standards), this             object will be modified accordingly."Raftus & Cardona            Standards Track                   [Page 121]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   OBJECT  docsIfUpChannelModulationProfile        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelSlotSize        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfUpChannelRangingBackoffStart        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelRangingBackoffEnd        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelTxBackoffStart        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelTxBackoffEnd        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelScdmaActiveCodes        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems.             The number of active codes when SCDMA is in use MUST range             from 64 to 128 and MUST be a non-Prime value.             Providing this range allows for the following features             and capabilities:                1) Power management in S-CDMA spreader-on frames                   (with a 3 dB spread).Raftus & Cardona            Standards Track                   [Page 122]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006                2) Avoidance of code 0.                3) Flexible mini-slot sizes with and without the use of                   code 0."   OBJECT  docsIfUpChannelScdmaCodesPerSlot        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelScdmaFrameSize        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelScdmaHoppingSeed        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelCloneFrom        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelUpdate        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."   OBJECT  docsIfUpChannelStatus           MIN-ACCESS  read-only           DESCRIPTION               "Read-create in Cable Modem Termination Systems;                read-only in Cable Modems.                Entries associated to physical interfaces only support                the read-only value 'active'."   OBJECT  docsIfUpChannelPreEqEnable        MIN-ACCESS  read-only        DESCRIPTION            "Read-create in cable modem termination systems;             read-only in cable modems."Raftus & Cardona            Standards Track                   [Page 123]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   OBJECT  docsIfQosProfPriority        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfMaxUpBandwidth        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfGuarUpBandwidth        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfMaxDownBandwidth        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfBaselinePrivacy        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfStatus        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."   OBJECT  docsIfQosProfMaxTransmitBurst        MIN-ACCESS  read-only        DESCRIPTION            "This object is always read-only in cable modems.             It is compliant to implement this object as read-only             in cable modem termination systems."Raftus & Cardona            Standards Track                   [Page 124]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   OBJECT  docsIfCmRangingTimeout        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT docsIfCmStatusModulationType       SYNTAX          INTEGER {           unknown(0),           tdma(1),           atdma(2),           scdma(3)       }        DESCRIPTION            "CM does not use both modulation burst profiles of a             'tdmAndAtdma' ChannelType; therefore, 'tdmAndAtdma'is             not supported."   OBJECT  docsIfCmtsServiceAdminStatus        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsSyncInterval        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsUcdInterval        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsInsertInterval        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsInvitedRangingAttempts        MIN-ACCESS  read-only        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT  docsIfCmtsQosProfilePermissions        WRITE-SYNTAX     BITS {            createByManagement(0),            updateByManagement(1)           }        MIN-ACCESS  read-onlyRaftus & Cardona            Standards Track                   [Page 125]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "It is compliant to implement this object as read-only."   OBJECT docsIfCmtsModType        WRITE-SYNTAX      INTEGER {            qpsk(2),            qam16(3),            qam64(6)        }        DESCRIPTION            "A management station MAY only set 64QAM, 16QAM, or QPSK             modulation for Time or Code division Multiple Access,             but others might be possible based on device             configuration."   OBJECT docsIfCmtsCmStatusModulationType       SYNTAX          INTEGER {           unknown(0),           tdma(1),           atdma(2),           scdma(3)       }        DESCRIPTION            "CM does not use both modulation burst profiles of a             'tdmAndAtdma' ChannelType; therefore, 'tdmAndAtdma'is             not supported."        ::= { docsIfCompliances 2 }   docsIfBasicGroup OBJECT-GROUP        OBJECTS {            docsIfDownChannelId,            docsIfDownChannelFrequency,            docsIfDownChannelWidth,            docsIfDownChannelModulation,            docsIfDownChannelInterleave,            docsIfDownChannelPower,            docsIfUpChannelId,            docsIfUpChannelFrequency,            docsIfUpChannelWidth,            docsIfUpChannelModulationProfile,            docsIfUpChannelSlotSize,            docsIfUpChannelTxTimingOffset,            docsIfUpChannelRangingBackoffStart,            docsIfUpChannelRangingBackoffEnd,            docsIfUpChannelTxBackoffStart,            docsIfUpChannelTxBackoffEnd,            docsIfQosProfPriority,Raftus & Cardona            Standards Track                   [Page 126]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfQosProfMaxUpBandwidth,            docsIfQosProfGuarUpBandwidth,            docsIfQosProfMaxDownBandwidth,            docsIfQosProfMaxTxBurst,            docsIfQosProfBaselinePrivacy,            docsIfQosProfStatus,            docsIfSigQIncludesContention,            docsIfSigQUnerroreds,            docsIfSigQCorrecteds,            docsIfSigQUncorrectables,            docsIfSigQSignalNoise,            docsIfSigQMicroreflections,            docsIfSigQEqualizationData        }        STATUS      deprecated        DESCRIPTION            "Group of objects implemented in both cable modems and             cable modem termination systems."        ::= { docsIfGroups 1 }   docsIfCmGroup OBJECT-GROUP        OBJECTS {            docsIfCmCmtsAddress,            docsIfCmCapabilities,            docsIfCmRangingTimeout,            docsIfCmStatusValue,            docsIfCmStatusCode,            docsIfCmStatusTxPower,            docsIfCmStatusResets,            docsIfCmStatusLostSyncs,            docsIfCmStatusInvalidMaps,            docsIfCmStatusInvalidUcds,            docsIfCmStatusInvalidRangingResponses,            docsIfCmStatusInvalidRegistrationResponses,            docsIfCmStatusT1Timeouts,            docsIfCmStatusT2Timeouts,            docsIfCmStatusT3Timeouts,            docsIfCmStatusT4Timeouts,            docsIfCmStatusRangingAborteds,            docsIfCmServiceQosProfile,            docsIfCmServiceTxSlotsImmed,            docsIfCmServiceTxSlotsDed,            docsIfCmServiceTxRetries,            docsIfCmServiceTxExceededs,            docsIfCmServiceRqRetries,            docsIfCmServiceRqExceededs        }        STATUS      deprecatedRaftus & Cardona            Standards Track                   [Page 127]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006        DESCRIPTION            "Group of objects implemented in cable modems."        ::= { docsIfGroups 2 }   docsIfCmtsGroup OBJECT-GROUP        OBJECTS {            docsIfCmtsCapabilities,            docsIfCmtsSyncInterval,            docsIfCmtsUcdInterval,            docsIfCmtsMaxServiceIds,            docsIfCmtsInvitedRangingAttempts,            docsIfCmtsInsertInterval,            docsIfCmtsStatusInvalidRangeReqs,            docsIfCmtsStatusRangingAborteds,            docsIfCmtsStatusInvalidRegReqs,            docsIfCmtsStatusFailedRegReqs,            docsIfCmtsStatusInvalidDataReqs,            docsIfCmtsStatusT5Timeouts,            docsIfCmtsCmStatusMacAddress,            docsIfCmtsCmStatusIpAddress,            docsIfCmtsCmStatusDownChannelIfIndex,            docsIfCmtsCmStatusUpChannelIfIndex,            docsIfCmtsCmStatusRxPower,            docsIfCmtsCmStatusTimingOffset,            docsIfCmtsCmStatusEqualizationData,            docsIfCmtsCmStatusValue,            docsIfCmtsCmStatusUnerroreds,            docsIfCmtsCmStatusCorrecteds,            docsIfCmtsCmStatusUncorrectables,            docsIfCmtsCmStatusSignalNoise,            docsIfCmtsCmStatusMicroreflections,            docsIfCmtsServiceCmStatusIndex,            docsIfCmtsServiceAdminStatus,            docsIfCmtsServiceQosProfile,            docsIfCmtsServiceCreateTime,            docsIfCmtsServiceInOctets,            docsIfCmtsServiceInPackets,            docsIfCmtsModType,            docsIfCmtsModControl,            docsIfCmtsModPreambleLen,            docsIfCmtsModDifferentialEncoding,            docsIfCmtsModFECErrorCorrection,            docsIfCmtsModFECCodewordLength,            docsIfCmtsModScramblerSeed,            docsIfCmtsModMaxBurstSize,            docsIfCmtsModGuardTimeSize,            docsIfCmtsModLastCodewordShortened,            docsIfCmtsModScrambler,Raftus & Cardona            Standards Track                   [Page 128]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfCmtsQosProfilePermissions,            docsIfCmtsCmPtr        }        STATUS      deprecated        DESCRIPTION            "Group of objects implemented in Cable Modem Termination             Systems."        ::= { docsIfGroups 3 }   -- obsolete group   --RFC 2670 already had a obsolete group, even thoughRFC2670   -- was the first version of this MIB Module.   docsIfObsoleteGroup OBJECT-GROUP        OBJECTS {            docsIfCmRangingRespTimeout,            docsIfCmtsInsertionInterval        }        STATUS      obsolete        DESCRIPTION            "Group of objects obsoleted."        ::= { docsIfGroups 4 }   docsIfBasicGroupV2 OBJECT-GROUP        OBJECTS {            docsIfDownChannelId,            docsIfDownChannelFrequency,            docsIfDownChannelWidth,            docsIfDownChannelModulation,            docsIfDownChannelInterleave,            docsIfDownChannelPower,            docsIfDownChannelAnnex,            docsIfUpChannelId,            docsIfUpChannelFrequency,            docsIfUpChannelWidth,            docsIfUpChannelModulationProfile,            docsIfUpChannelSlotSize,            docsIfUpChannelTxTimingOffset,            docsIfUpChannelRangingBackoffStart,            docsIfUpChannelRangingBackoffEnd,            docsIfUpChannelTxBackoffStart,            docsIfUpChannelTxBackoffEnd,            docsIfUpChannelScdmaActiveCodes,            docsIfUpChannelScdmaCodesPerSlot,            docsIfUpChannelScdmaFrameSize,            docsIfUpChannelScdmaHoppingSeed,            docsIfUpChannelType,            docsIfUpChannelCloneFrom,Raftus & Cardona            Standards Track                   [Page 129]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfUpChannelUpdate,            docsIfUpChannelStatus,            docsIfUpChannelPreEqEnable,            docsIfQosProfPriority,            docsIfQosProfMaxUpBandwidth,            docsIfQosProfGuarUpBandwidth,            docsIfQosProfMaxDownBandwidth,            docsIfQosProfBaselinePrivacy,            docsIfQosProfStatus,            docsIfQosProfMaxTransmitBurst,            docsIfSigQIncludesContention,            docsIfSigQUnerroreds,            docsIfSigQCorrecteds,            docsIfSigQUncorrectables,            docsIfSigQSignalNoise,            docsIfSigQMicroreflections,            docsIfSigQExtUnerroreds,            docsIfSigQExtCorrecteds,            docsIfSigQExtUncorrectables,            docsIfDocsisBaseCapability        }        STATUS      current        DESCRIPTION            "Group of objects implemented in both cable modems and             cable modem termination systems."        ::= { docsIfGroups 5 }   docsIfCmGroupV2 OBJECT-GROUP        OBJECTS {            docsIfCmCmtsAddress,            docsIfCmCapabilities,            docsIfCmRangingTimeout,            docsIfCmStatusValue,            docsIfCmStatusCode,            docsIfCmStatusTxPower,            docsIfCmStatusResets,            docsIfCmStatusLostSyncs,            docsIfCmStatusInvalidMaps,            docsIfCmStatusInvalidUcds,            docsIfCmStatusInvalidRangingResponses,            docsIfCmStatusInvalidRegistrationResponses,            docsIfCmStatusT1Timeouts,            docsIfCmStatusT2Timeouts,            docsIfCmStatusT3Timeouts,            docsIfCmStatusT4Timeouts,            docsIfCmStatusRangingAborteds,            docsIfCmStatusDocsisOperMode,            docsIfCmStatusModulationType,Raftus & Cardona            Standards Track                   [Page 130]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfCmStatusEqualizationData,            docsIfCmStatusUCCs,            docsIfCmStatusUCCFails,            docsIfCmServiceQosProfile,            docsIfCmServiceTxSlotsImmed,            docsIfCmServiceTxSlotsDed,            docsIfCmServiceTxRetries,            docsIfCmServiceTxExceededs,            docsIfCmServiceRqRetries,            docsIfCmServiceRqExceededs,            docsIfCmServiceExtTxSlotsImmed,            docsIfCmServiceExtTxSlotsDed,            docsIfSigQEqualizationData        }        STATUS      current        DESCRIPTION            "Group of objects implemented in cable modems."        ::= { docsIfGroups 6 }   docsIfCmtsGroupV2 OBJECT-GROUP        OBJECTS {            docsIfCmtsCapabilities,            docsIfCmtsSyncInterval,            docsIfCmtsUcdInterval,            docsIfCmtsMaxServiceIds,            docsIfCmtsInvitedRangingAttempts,            docsIfCmtsInsertInterval,            docsIfCmtsMacStorageType,            docsIfCmtsStatusInvalidRangeReqs,            docsIfCmtsStatusRangingAborteds,            docsIfCmtsStatusInvalidRegReqs,            docsIfCmtsStatusFailedRegReqs,            docsIfCmtsStatusInvalidDataReqs,            docsIfCmtsStatusT5Timeouts,            docsIfCmtsCmStatusMacAddress,            docsIfCmtsCmStatusDownChannelIfIndex,            docsIfCmtsCmStatusUpChannelIfIndex,            docsIfCmtsCmStatusRxPower,            docsIfCmtsCmStatusTimingOffset,            docsIfCmtsCmStatusEqualizationData,            docsIfCmtsCmStatusValue,            docsIfCmtsCmStatusUnerroreds,            docsIfCmtsCmStatusCorrecteds,            docsIfCmtsCmStatusUncorrectables,            docsIfCmtsCmStatusSignalNoise,            docsIfCmtsCmStatusMicroreflections,            docsIfCmtsCmStatusExtUnerroreds,            docsIfCmtsCmStatusExtCorrecteds,Raftus & Cardona            Standards Track                   [Page 131]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfCmtsCmStatusExtUncorrectables,            docsIfCmtsCmStatusDocsisRegMode,            docsIfCmtsCmStatusModulationType,            docsIfCmtsCmStatusInetAddressType,            docsIfCmtsCmStatusInetAddress,            docsIfCmtsCmStatusValueLastUpdate,            docsIfCmtsCmStatusHighResolutionTimingOffset,            docsIfCmtsServiceAdminStatus,            docsIfCmtsServiceQosProfile,            docsIfCmtsServiceCreateTime,            docsIfCmtsServiceInOctets,            docsIfCmtsServiceInPackets,            docsIfCmtsServiceNewCmStatusIndex,            docsIfCmtsModType,            docsIfCmtsModControl,            docsIfCmtsModPreambleLen,            docsIfCmtsModDifferentialEncoding,            docsIfCmtsModFECErrorCorrection,            docsIfCmtsModFECCodewordLength,            docsIfCmtsModScramblerSeed,            docsIfCmtsModMaxBurstSize,            docsIfCmtsModGuardTimeSize,            docsIfCmtsModLastCodewordShortened,            docsIfCmtsModScrambler,            docsIfCmtsModByteInterleaverDepth,            docsIfCmtsModByteInterleaverBlockSize,            docsIfCmtsModPreambleType,            docsIfCmtsModTcmErrorCorrectionOn,            docsIfCmtsModScdmaInterleaverStepSize,            docsIfCmtsModScdmaSpreaderEnable,            docsIfCmtsModScdmaSubframeCodes,            docsIfCmtsModChannelType,            docsIfCmtsModStorageType,            docsIfCmtsQosProfilePermissions,            docsIfCmtsCmPtr,            docsIfCmtsChannelUtilizationInterval,            docsIfCmtsChannelUtUtilization,            docsIfCmtsDownChnlCtrId,            docsIfCmtsDownChnlCtrTotalBytes,            docsIfCmtsDownChnlCtrUsedBytes,            docsIfCmtsDownChnlCtrExtTotalBytes,            docsIfCmtsDownChnlCtrExtUsedBytes,            docsIfCmtsUpChnlCtrId,            docsIfCmtsUpChnlCtrTotalMslots,            docsIfCmtsUpChnlCtrUcastGrantedMslots,            docsIfCmtsUpChnlCtrTotalCntnMslots,            docsIfCmtsUpChnlCtrUsedCntnMslots,            docsIfCmtsUpChnlCtrExtTotalMslots,Raftus & Cardona            Standards Track                   [Page 132]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006            docsIfCmtsUpChnlCtrExtUcastGrantedMslots,            docsIfCmtsUpChnlCtrExtTotalCntnMslots,            docsIfCmtsUpChnlCtrExtUsedCntnMslots,            docsIfCmtsUpChnlCtrCollCntnMslots,            docsIfCmtsUpChnlCtrTotalCntnReqMslots,            docsIfCmtsUpChnlCtrUsedCntnReqMslots,            docsIfCmtsUpChnlCtrCollCntnReqMslots,            docsIfCmtsUpChnlCtrTotalCntnReqDataMslots,            docsIfCmtsUpChnlCtrUsedCntnReqDataMslots,            docsIfCmtsUpChnlCtrCollCntnReqDataMslots,            docsIfCmtsUpChnlCtrTotalCntnInitMaintMslots,            docsIfCmtsUpChnlCtrUsedCntnInitMaintMslots,            docsIfCmtsUpChnlCtrCollCntnInitMaintMslots,            docsIfCmtsUpChnlCtrExtCollCntnMslots,            docsIfCmtsUpChnlCtrExtTotalCntnReqMslots,            docsIfCmtsUpChnlCtrExtUsedCntnReqMslots,            docsIfCmtsUpChnlCtrExtCollCntnReqMslots,            docsIfCmtsUpChnlCtrExtTotalCntnReqDataMslots,            docsIfCmtsUpChnlCtrExtUsedCntnReqDataMslots,            docsIfCmtsUpChnlCtrExtCollCntnReqDataMslots,            docsIfCmtsUpChnlCtrExtTotalCntnInitMaintMslots,            docsIfCmtsUpChnlCtrExtUsedCntnInitMaintMslots,            docsIfCmtsUpChnlCtrExtCollCntnInitMaintMslots,            docsIfDownChannelStorageType,            docsIfQosProfStorageType        }        STATUS      current        DESCRIPTION            "Group of objects implemented in Cable Modem Termination             Systems."        ::= { docsIfGroups 7 }   ENDRaftus & Cardona            Standards Track                   [Page 133]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20065.  Revision History5.1.  Scope   The MIB module in this document has been developed to accommodate   DOCSIS 2.0 devices and their system capabilities.  The MIB module is   an update toRFC 2670 [RFC2670] with the additional incorporation of   DOCSIS 2.0 [RFI2.0] and Euro-DOCSIS specification requirements   [EN-300-429].5.2.  Extension   We have maintained the MIB objects as defined inRFC 2670 [RFC2670].   In some cases new MIB objects have been created with identical   functionality but greater capacity (i.e., 32 to 64 bits).  In these   situations, both the original 32 bit objects and the new 64 bit   objects must be implemented.6.  Security Considerations   This MIB module relates to a system that will provide metropolitan   public internet access.  As such, improper manipulation of the MIB   objects represented by this MIB module may result in denial of   service to a large number of end-users.   There are a number of management objects defined in this MIB that   have a MAX-ACCESS clause of read-write or read-create.  Such objects   may be considered sensitive or vulnerable in some network   environments.  The support for SET operations in a non-secure   environment without proper protection can have a negative effect on   network operations.   The CMTS is the controller of most of the parameters of the DOCSIS   RFI Interface.  Therefore, write access to the CMTS MIB objects may   compromise the end-user's services.   In the CM case, the only read-write object of this MIB module is   docsIfCmRangingTimeout, which if SET maliciously, may not constitute   a critical factor of service degradation.   The rest of the CM-required MIB objects in this MIB module are read-   only, either by definition, or by compliance statements.   The CMTS is the controller of most of the parameters of the DOCSIS   RFI Interface.  Below are the CMTS MIB object's vulnerabilities:   o  Objects in the docsIfBasicGroupv2, if SET maliciously, could      result in a denial of service.  Particularly, SETs to objects inRaftus & Cardona            Standards Track                   [Page 134]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006      docsIfDownstreamChannelTable, docsIfUpstreamChannelTable,      docsIfCmtsModulationTable, and docsIfQosProfileTable (the last one      in conjunction with the MIB object      docsIfCmtsQosProfilePermissions) can alter negatively the physical      and link layer parameters of upstream and downstream channels.   o  The Object docsIfCmtsServiceAdminStatus of the docsIfCmtsGroupv2      group, when SET maliciously by an attacker to 'disabled' or      'destroyed', will interrupt the service of the corresponding cable      modem.   Some of the readable objects in this MIB module (i.e., objects with a   MAX-ACCESS other than not-accessible) may be considered sensitive or   vulnerable in some network environments.  It is thus important to   control even GET and/or NOTIFY access to these objects and possibly   to even encrypt the values of these objects when sending them over   the network via SNMP.  Below are some sensitivity considerations:   o  Read access to the MIB objects in tables docsIfCmStatusTable (CM),      docsIfSignalQualityTable (CM/CMTS) and in CMTS tables      docsIfCmtsCmStatusTable, docsIfCmtsChannelUtilizationTable,      docsIfCmtsDownChannelCounterTable, and      docsIfCmtsUpChannelCounterTable, could reveal information about      the cable modems' distribution among the upstream and downstream      channels and their performance, which could be used to gain access      to a different tiered service offer.  The table      docsIfCmtsCmStatusTable also contains the MAC and IP addresses of      the cable modems, which can be used for theft of service.   SNMP versions prior to SNMPv3 did not include adequate security.   Even if the network itself is secure (for example by using IPSec),   even then, there is no control as to who on the secure network is   allowed to access and GET/SET (read/change/create/delete) the objects   in this MIB module.   It is RECOMMENDED that implementers consider the security features as   provided by the SNMPv3 framework (see[RFC3410], section 8),   including full support for the SNMPv3 cryptographic mechanisms (for   authentication and privacy).   Further, deployment of SNMP versions prior to SNMPv3 is NOT   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to   enable cryptographic security.  It is then a customer/operator   responsibility to ensure that the SNMP entity giving access to an   instance of this MIB module is properly configured to give access to   the objects only to those principals (users) that have legitimate   rights to indeed GET or SET (change/create/delete) them.Raftus & Cardona            Standards Track                   [Page 135]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 20067.  Management Interoperability of DOCSIS 1.0, 1.1, and 2.0   The MIB module contained in this document updatesRFC 2670 [RFC2670],   primarily to handle the management requirements of the DOCSIS RF   Interface of DOCSIS 2.0 [ITU-T_J.122].RFC 2670 contains the DOCSIS   RF Interface management requirements for DOCSIS 1.0 and DOCSIS 1.1.   The management requirements of Class of Service (DOCSIS 1.0)   pertaining toRFC 2670 are the same as this document update and are   contained in the tables docsIfQosProfileTable, docsIfCmServiceTable,   and docsIfCmtsServiceTable.   DOCSIS 1.1 and DOCSIS 2.0 Quality of Service management requirements   are defined in the DOCSIS management specifications [OSSI1.1] and   [OSSI2.0], respectively.8.  References8.1.  Normative References   [EN-300-429]  European Telecommunications Standard Institute, "ETSI                 Standard EN 300 429, Version 1.2.1: Digital Video                 Broadcasting (DVB), Framing structure, channel coding                 and modulation for cable systems", April 1998.   [IANA]        Internet Assigned Numbers Authority, "Internet Assigned                 Numbers Authority", October 2005,                 <http://www.iana.org/assignments/ianaiftype-mib/>.   [ITU-T_J.112] Telecommunication Standardization Sector of                 International Telecommunications Union, "Transmission                 Systems for Interactive Cable Television Services,                 Annex B.", March 2001, <http://www.itu.int/ITU-T/studygroups/com09/>.   [ITU-T_J.122] Telecommunication Standardization Sector of                 International Telecommunications Union, "Second-                 Generation Transmission Systems for Interactive Cable                 Television Services.", December 2002,                 <http://www.itu.int/ITU-T/studygroups/com09/>.   [ITU-T_J.83]  Telecommunication Standardization Sector of                 International Telecommunications Union, "ITU-T                 Recommendation J.83(4/97), Digital multi-programme                 systems for television sound and data services for                 cable distribution.", April 1997,                 <http://www.itu.int/ITU-T/studygroups/com09/>.Raftus & Cardona            Standards Track                   [Page 136]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   [RFC2119]     Bradner, S., "Key words for use in RFCs to Indicate                 Requirement Levels",BCP 14,RFC 2119, March 1997.   [RFC2578]     McCloghrie, K., Perkins, D., and J. Schoenwaelder,                 "Structure of Management Information Version 2                 (SMIv2)", STD 58,RFC 2578, April 1999.   [RFC2579]     McCloghrie, K., Perkins, D., and J. Schoenwaelder,                 "Textual Conventions for SMIv2", STD 58,RFC 2579,                 April 1999.   [RFC2580]     McCloghrie, K., Perkins, D., and J. Schoenwaelder,                 "Conformance Statements for SMIv2", STD 58,RFC 2580,                 April 1999.   [RFC2863]     McCloghrie, K. and F. Kastenholz, "The Interfaces Group                 MIB",RFC 2863, June 2000.   [RFC4001]     Daniele, M., Haberman, B., Routhier, S., and J.                 Schoenwaelder, "Textual Conventions for Internet                 Network Addresses",RFC 4001, February 2005.   [RFI1.1]      CableLabs, "Data-Over-Cable Service Interface                 Specifications: Radio Frequency Interface Specification                 SP-RFIv1.1-C01-050907", September 2005,                 <http://www.cablemodem.com/specifications/>.   [RFI2.0]      CableLabs, "Data-Over-Cable Service Interface                 Specifications: Radio Frequency Interface Specification                 SP-RFIv2.0-I09-050812", August 2005,                 <http://www.cablemodem.com/specifications/>.8.2.  Informative References   [BPI]         SCTE Data Standards Subcommittee, "Data-Over-Cable                 Service Interface Specifications: DOCSIS 1.0 Baseline                 Privacy Interface Specification SCTE 22-2 2002", 2002,                 <http://www.scte.org/standards/>.   [BPIPLUS]     CableLabs, "Data-Over-Cable Service Interface                 Specifications: Baseline Privacy Plus Interface                 Specification SP-BPI+-I12-050812", August 2005,                 <http://www.cablemodem.com/specifications/>.   [OSSI1.1]     CableLabs, "Data-Over-Cable Service Interface                 Specifications: Operations Support System Interface                 Specification SP-OSSIv1.1-C01-050907", September 2005,                 <http://www.cablemodem.com/specifications/>.Raftus & Cardona            Standards Track                   [Page 137]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006   [OSSI2.0]     CableLabs, "Data-Over-Cable Service Interface                 Specifications: Operations Support System Interface                 Specification SP-OSSIv2.0-I09-050812", September 2005,                 <http://www.cablemodem.com/specifications/>.   [Proakis00]   McGraw-Hill, "Digital Communications, 4th Edition",                 2000.   [RFC2670]     St. Johns, M., "Radio Frequency (RF) Interface                 Management Information Base for MCNS/DOCSIS compliant                 RF interfaces",RFC 2670, August 1999.   [RFC3410]     Case, J., Mundy, R., Partain, D., and B. Stewart,                 "Introduction and Applicability Statements for                 Internet-Standard Management Framework",RFC 3410,                 December 2002.   [RFI1.0]      SCTE Data Standards Subcommittee, "Data-Over-Cable                 Service Interface Specifications: DOCSIS 1.0 Radio                 Frequency Interface Specification SCTE 22-1 2002",                 2002, <http://www.scte.org/standards/>.Authors' Addresses   David Raftus   ATI Technologies   340 Terry Fox Drive, Suite 202   Ottawa, Ontario   Canada   Phone: +1 613 592 1052 ext.222   EMail: david.raftus@ati.com   Eduardo Cardona   Cable Television Laboratories, Inc.   858 Coal Creek Circle   Louisville, CO  80020   USA   Phone: +1 303 661 3375   EMail: e.cardona@cablelabs.comRaftus & Cardona            Standards Track                   [Page 138]

RFC 4546          DOCSIS 2.0 Radio Frequency (RFI) MIB         June 2006Full Copyright Statement   Copyright (C) The Internet Society (2006).   This document is subject to the rights, licenses and restrictions   contained inBCP 78, and except as set forth therein, the authors   retain all their rights.   This document and the information contained herein are provided on an   "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS   OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET   ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,   INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE   INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED   WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.Intellectual Property   The IETF takes no position regarding the validity or scope of any   Intellectual Property Rights or other rights that might be claimed to   pertain to the implementation or use of the technology described in   this document or the extent to which any license under such rights   might or might not be available; nor does it represent that it has   made any independent effort to identify any such rights.  Information   on the procedures with respect to rights in RFC documents can be   found inBCP 78 andBCP 79.   Copies of IPR disclosures made to the IETF Secretariat and any   assurances of licenses to be made available, or the result of an   attempt made to obtain a general license or permission for the use of   such proprietary rights by implementers or users of this   specification can be obtained from the IETF on-line IPR repository athttp://www.ietf.org/ipr.   The IETF invites any interested party to bring to its attention any   copyrights, patents or patent applications, or other proprietary   rights that may cover technology that may be required to implement   this standard.  Please address the information to the IETF at   ietf-ipr@ietf.org.Acknowledgement   Funding for the RFC Editor function is provided by the IETF   Administrative Support Activity (IASA).Raftus & Cardona            Standards Track                   [Page 139]

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