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Network Working Group                                           T. BrownRequest for Comments: 1595                                     K. TesinkCategory: Standards Track                                        Editors                                            Bell Communications Research                                                              March 1994Definitions of Managed Objectsfor the SONET/SDH Interface TypeStatus 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.Abstract   This memo defines a portion of the Management Information Base (MIB)   for use with network management protocols in TCP/IP-based internets.   In particular, it defines objects for managing Synchronous Optical   Network/Synchronous Digital Hierarchy (SONET/SDH) objects.  This   document is a companion document with Definitions of Managed Objects   for the DS1/E1 and DS3/E3 Interface Types,RFC1406 [14] andRFC1407   [13].   This memo specifies a MIB module in a manner that is both compliant   to the SNMPv2 SMI, and semantically identical to the peer SNMPv1   definitions.Table of Contents1. The SNMPv2 Network Management Framework ...............22. Objects ...............................................32.1 Format of Definitions ................................33. Overview ..............................................43.1 Use of the ifTable ...................................4   3.2 Use of ifTable for  SONET/SDH  Medium/Section/Line       Layer ................................................63.3 Use of ifTable for SONET/SDH Paths. ..................73.4 Use of ifTable for SONET/SDH VTs/VCs .................83.5 SONET/SDH Terminology ................................9   3.6 Values for x for the Section, Line, Path,  and  VT       Layers ...............................................164. Object Definitions ....................................174.1 The SONET/SDH Medium Group ...........................18AToM MIB Working Group                                          [Page 1]

RFC 1595                   SONET/SDH Objects                  March 19944.2 The SONET/SDH Section Group ..........................214.2.1 The SONET/SDH Section Current Group ................214.2.2 The SONET/SDH Section Interval Group ...............234.3 The SONET/SDH Line Group .............................254.3.1 The SONET/SDH Line Current Group ...................254.3.2 The SONET/SDH Line Interval Group ..................274.4 The SONET/SDH Far End Line Group .....................304.4.1 The SONET/SDH Far End Line Current Group ...........304.4.2 The SONET/SDH Far End Line Interval Group ..........324.5 The SONET/SDH Path Group .............................344.5.1 The SONET/SDH Path Current Group ...................344.5.2 The SONET/SDH Path Interval Group ..................374.6 The SONET/SDH Far End Path Group .....................394.6.1 The SONET/SDH Far End Path Current Group ...........394.6.2 The SONET/SDH Far End Path Interval Group ..........414.7 The SONET/SDH Virtual Tributary Group ................434.7.1 The SONET/SDH VT Current Group .....................434.7.2 The SONET/SDH VT Interval Group ....................464.8 The SONET/SDH Far End VT Group .......................484.8.1 The SONET/SDH Far End VT Current Group .............484.8.2 The SONET/SDH Far End VT Interval Group ............504.9 Conformance Information ..............................524.10 Compliance Statements ...............................525. Acknowledgments .......................................566. References ............................................577. Security Considerations ...............................598. Authors' Addresses ....................................591.  The SNMPv2 Network Management Framework   The SNMPv2 Network Management Framework consists of four major   components.  They are:RFC 1442 [1] which defines the SMI, the mechanisms used for      describing and naming objects for the purpose of management.      STD 17,RFC 1213 [6] defines MIB-II, the core set of managed      objects for the Internet suite of protocols. Reference [12]      defines the evolution of the Interfaces Group of MIB II in terms      of extensions and precise applications of the objects.RFC 1445 [4] which defines the administrative and other      architectural aspects of the framework.RFC 1448 [5] which defines the protocol used for network access to      managed objects.AToM MIB Working Group                                          [Page 2]

RFC 1595                   SONET/SDH Objects                  March 1994   The Framework permits new objects to be defined for the purpose of   experimentation and evaluation.   This specification makes also use of:RFC 1443 [2] which defines textual conventions for the      specification of managed objects.RFC 1444 [3] which defines conformance statements for the      specification of managed objects.2.  Objects   Managed objects are accessed via a virtual information store, termed   the Management Information Base or MIB.  Objects in the MIB are   defined using the subset of Abstract Syntax Notation One (ASN.1) [7]   defined in the SMI.  In particular, each object has a name, a syntax,   and an encoding.  The name is an object identifier, an   administratively assigned name, which specifies an object type.  The   object type together with an object instance serves to uniquely   identify a specific instantiation of the object.  For human   convenience, we often use a textual string, termed the OBJECT   DESCRIPTOR, to also refer to the object type.   The syntax of an object type defines the abstract data structure   corresponding to that object type.  The ASN.1 language is used for   this purpose.  However, the SMIRFC 1442 purposely restricts the   ASN.1 constructs which may be used.  These restrictions are   explicitly made for simplicity.   The encoding of an object type is simply how that object type is   represented using the object type's syntax.  Implicitly tied to the   notion of an object type's syntax and encoding is how the object type   is represented when being transmitted on the network.  The SMI   specifies the use of the basic encoding rules of ASN.1 [8], subject   to the additional requirements imposed by the SNMP.2.1.  Format of DefinitionsSection 4 contains contains the specification of all object types   contained in this MIB module.  The object types are defined using the   conventions defined in the SMI, as amended by the extensions   specified in the SNMPv2 SMI.AToM MIB Working Group                                          [Page 3]

RFC 1595                   SONET/SDH Objects                  March 19943.  Overview   These objects are used when the particular media being used to   realize an interface is a SONET/SDH interface.  At present, this   applies to these values of the ifType variable in the Internet-   standard MIB:               sonet (39), sonetPath (50), sonetVT (51)   The definitions contained herein are based on the SONET/SDH   specifications in ANSI T1.105 and T1.106-1988 [9,9a,10] and CCITT   G.707, 708, 709, and G.783 [15-18].3.1.  Use of the ifTable   This section specifies how the MIB II interfaces group, as defined in   [12], is used for SONET/SDH interfaces.  The SONET/SDH layers support   several multiplexing possibilities.   For example in SONET, an Synchronous Transport Signal 3 (STS-3) has 3   SONET Paths, and a STS-3c has 1 SONET Path. Another example could be   a STS-12 having 4 SONET STS-3c Paths.  Similarly, a SONET Synchronous   Payload Envelope (SPE) can carry many Virtual Tributaries (VTs), for   example, one SONET SPE can carry 28 VT1.5s.  It is important to note   that an SPE and a VT in SONET is collectively referred to as a   Virtual Container (VC) in SDH.  Also, an STS is called Synchronous   Transport Module (STM) in SDH.   Not all SONET/SDH equipment terminate all SONET/SDH layers.  For   example, an SONET/SDH STE regenerator terminates SONET/SDH Sections   only, and is transparent for all layers above that.  SONET/SDH Add-   Drop multiplexers and Digital Cross Connect Systems terminate   SONET/SDH Lines. SONET/SDH Terminal Multiplexers may also terminate   SONET/SDH Paths and VTs/VCs.   MIB II [6], as extended by [12], accommodates these cases by   appropriate use of the MIB II system group, and the interfaces group.   The system group can name and describe the type of managed resource.   The interfaces group defines which SONET/SDH layers apply, how these   layers are configured and multiplexed.  This is achieved by proper   representation of SONET/SDH Layers by ifEntries as defined in [12],   as follows:AToM MIB Working Group                                          [Page 4]

RFC 1595                   SONET/SDH Objects                  March 1994                        _____________________________                       |             |          |    |  >                       |             |          |    |  |                       |    VT 1     |..........|VT K|   > K ifEntries                       |             |          |    |  |                       |_____________|__________|____|  >                       |               |      |      |  >                       |               |      |      |  |                       |    Path 1     |......|Path L|   > L ifEntries                       |               |      |      |  |                       |_______________|______|______|  >                       |                             |  >                       |                             |  |                       |    Line                     |  |                       |                             |  |                       |_____________________________|  |                       |                             |  |                       |                             |  |                       |    Section Layer            |   > 1 ifEntry                       |                             |  |                       |_____________________________|  |                       |                             |  |                       |                             |  |                       |    Physical Medium Layer    |  |                       |                             |  |                       |_____________________________|  >                       Use of ifTable for a SONET/SDH port   The exact configuration and multiplexing of the layers is maintained   in the ifStackTable [12].AToM MIB Working Group                                          [Page 5]

RFC 1595                   SONET/SDH Objects                  March 19943.2.  Use of ifTable for SONET/SDH Medium/Section/Line Layer   Only the ifGeneralGroup needs to be supported.ifTable Object    Use for combined SONET/SDH Medium/Section/Line Layer======================================================================           ifIndex           Interface index.           ifDescr           SONET/SDH Medium/Section/Line           ifType            sonet(39)           ifSpeed           Speed of line rate for SONET/SDH,                             (e.g., 155520000 bps).           ifPhysAddress     The value of the Circuit Identifier.                             If no Circuit Identifier has been assigned                             this object should have an octet string with                             zero length.           ifAdminStatus     Supports read-only access.                             The desired administrative status of the                             interface.           ifOperStatus      The value testing(3) is not used.                             This object assumes the value down(2),                             if the objects sonetSectionCurrentStatus                             and sonetLineCurrentStatus have                             any other value than sonetSectionNoDefect(1)                             and sonetLineNoDefect(1), respectively.           ifLastChange      sysUpTime at the last change in                             ifOperStatus.           ifName            Textual name of the interface or an                             OCTET STRING of zero length.           ifLinkUpDownTrapEnable   Set to enabled(1).                                    Supports read-only access.           ifHighSpeed       Speed of line in Mega-bits per second                             (e.g., 155 Mbps)           ifConnectorPresent Set to true(1).AToM MIB Working Group                                          [Page 6]

RFC 1595                   SONET/SDH Objects                  March 19943.3.  Use of ifTable for SONET/SDH Paths   Only the ifGeneralGroup needs to be supported.          ifTable Object    Use for SONET/SDH Paths          =========================================           ifIndex           Interface index.           ifDescr           SONET/SDH Path           ifType            sonetPath(50)           ifSpeed           set to speed of SONET/SDH path                             (e.g., an STS-1 path has a                             rate of 50112000 bps.)           ifPhysAddress     Circuit Identifier or OCTET STRING of                             zero length.           ifAdminStatus     Supports read-only access.                             The desired administrative status of the                             interface.           ifOperStatus      This object assumes the value down(2),                             if the object sonetPathCurrentStatus has                             any other value than sonetPathNoDefect(1).           ifLastChange      sysUpTime at the last change in ifOperStatus.           ifName            Textual name of the interface or an                             OCTET STRING of zero length.           ifLinkUpDownTrapEnable   Default value is disabled(2).                                    Just read-only access may be                                    supported.           ifHighSpeed       Set to rate of SONET/SDH path                             in Mega-bits per second.           ifConnectorPresent Set to false(2).AToM MIB Working Group                                          [Page 7]

RFC 1595                   SONET/SDH Objects                  March 19943.4.  Use of ifTable for SONET/SDH VTs/VCs   Only the ifGeneralGroup needs to be supported.          ifTable Object    Use for SONET/SDH VTs/VCs          ===========================================           ifIndex           Interface index.           ifDescr           SONET/SDH VT/VC           ifType            sonetVT(51)           ifSpeed           Set to speed of VT/VC                             (e.g., a VT1.5 has a rate of                             1728000 bps.)           ifPhysAddress     Circuit Identifier or OCTET STRING of                             zero length.           ifAdminStatus     Supports read-only access.                             The desired administrative status of the                             interface.           ifOperStatus      This object assumes the value down(2),                             if the object sonetVTCurrentStatus has                             any other value than sonetVTNoDefect(1).           ifLastChange      sysUpTime at the last change in                             ifOperStatus.           ifName            Textual name of the interface or an                             OCTET STRING of zero length.           ifLinkUpDownTrapEnable   Default value is disabled(2).                                    Just read-only access may be                                    supported.           ifHighSpeed       Set to rate of VT in Mega-bits per second.           ifConnectorPresent Set to false(2).AToM MIB Working Group                                          [Page 8]

RFC 1595                   SONET/SDH Objects                  March 19943.5.  SONET/SDH Terminology   The terminology used in this document to describe error conditions on   a SONET circuit as monitored by a SONET system are from the ANSI   T1M1.3/93-005R2 [11].  The terminology used in this document to   describe error conditions on a SDH circuit as monitored by a SDH   system are from the CCITT G.783 [18].  Only the SONET Performance   Monitoring terminology is defined in this document.  The definitions   for SDH Performance Monitoring terms are similar but not identical,   and they can be found in [18].  If the definition in this document   does not match the definition in the ANSI T1M1.3/93-005R2 draft   document, the implementer should follow the definition described in   this document.          Section Loss Of Frame Failure (Out of Frame Event, Severely               Errored Frame Defect)               An Out of Frame (OOF) event (or Severely Errored Frame               defect) is the occurrence of four contiguous errored               frame alignment words.  A frame alignment work occupies               the A1 and A2 bytes of an STS frame, and is defined in               T1.105.  The SEF defect is terminated when two contiguous               error-free frame words are detected.  Any implementation               of the frame recovery circuitry which achieves               realignment following an OOF within the 250 microsecond               (two frames) interval implied by this definition is               acceptable.               An Loss of Frame (LOF) defect is declared when an OOF/SEF               defect persists for a period of 3 milliseconds.  The LOF               defect is terminated when the incoming signal remains               continuously in-frame for a period of 1 ms to 3 ms.               An LOF failure is declared when the LOF defect persists               for a period of 2.5 +/- 0.5 seconds, except when an LOS               defect or failure is present.  The LOF failure is cleared               when the LOS failure is declared, or when the LOF defect               is absent for 10 +/- 0.5 seconds.          Loss of Signal               The Loss of Signal (LOS) defect is declared when no               transitions are detected on the incoming signal (before               descrambling).  The LOS defect is detected  upon               observing 2.3 to 100 microseconds of no transitions.  The               LOS defect is cleared after a 125 microsecond interval               (one frame) during which no LOS defect is detected.               The LOS failure is declared when the LOS defect persists               for a period of 2.5 +/- 0.5 seconds, or if LOS defect isAToM MIB Working Group                                          [Page 9]

RFC 1595                   SONET/SDH Objects                  March 1994               present when the criteria for LOF failure declaration               have been met.  The LOS failure is cleared when the LOS               defect is absent for a period of 10 +/- 0.5 seconds.               Declaration of LOS failure clears any existing LOF               failure.  Clearing the LOS failure allows immediate               declaration of the LOF failure if conditions warrant.          STS-Path Loss of Pointer               An Loss of Pointer (LOP) defect is declared when either a               valid pointer is not detected in eight consecutive               frames, or when eight consecutive frames are detected               with the New Data Flag (NDF) set to "1001" without a               valid concatenation indicator (see ANSI T1.105).  A LOP               defect is terminated when either a valid pointer with a               normal NDF set to "0110", or a valid concatenation               indicator is detected for three contiguous frames.               Incoming STS-Path AIS shall not result in the declaration               of a LOP defect.               A STS-Path LOP failure is declared when the STS-Path LOP               defect persists for a period of 2.5 +/- 0.5 seconds.  A               STS-Path LOP failure is cleared when the STS-Path LOP               defect is absent for 10 +/- 0.5 seconds.          VT Loss of Pointer               A VT LOP defect is declared when either a valid pointer               is not detected in eight consecutive VT superframes, or               when eight consecutive VT superframes are detected with               the NDF set to "1001" without a valid concatenation               indicator.  A VT LOP defect is terminated when either a               valid pointer with a normal NDF set to "0110", or a valid               concatenation indicator is detected for three contiguous               VT superframes.  Incoming VT-Path AIS shall not result in               declaring a VT LOP defect.               A VT LOP failure is declared when the VT LOP defect               persists for 2.5 +/- 0.5 seconds.  A VT LOP failure is               cleared when the VT LOP defect is absent for 10 +/- 0.5               seconds.          Line Alarm Indication Signal               A Line Alarm Indication Signal (L-AIS) is defined in ANSI               T1.105.  The following criteria are specific to the L-AIS               defect:               --  Line AIS defect is detected as a "111" pattern in               bits 6, 7, and 8 of the K2 byte in five consecutive               frames.AToM MIB Working Group                                         [Page 10]

RFC 1595                   SONET/SDH Objects                  March 1994               --  Line AIS defect is terminated when bits 6, 7, and 8               of the K2 byte do not contain the code "111" for five               consecutive frames.               A Line AIS failure is declared when the Line AIS defect               persists for a period of 20.5 +/- 0.5 seconds.  A Line               AIS failure is cleared when the Line AIS defect is absent               for 10 +/- 0.5 seconds.          STS-Path Alarm Indication Signal               The STS-Path Alarm Indication Signal (AIS) is defined in               ANSI T1.105 as all ones in bytes H1, H2, and H3 as well               as all ones in the entire STS SPE.  The following               criteria are specific to the STS-Path AIS defect:               -- STS-Path AIS defect is detected as all ones in bytes               H1 and H2 in three contiguous frames.               -- The STS-Path AIS defect is terminated when a valid STS               Pointer is detected with the NDF set to "1001" (inverted)               for one frame, or  "0110" (normal) for three contiguous               frames.               A STS-Path AIS failure is declared when the STS-Path AIS               defect persists for 2.5 +/- 0.5 seconds.  A STS-Path AIS               failure is cleared when the STS-Path AIS defect is absent               for 10 +/- 0.5 seconds.          VT-Path Alarm Indication Signal               The VT-Path Alarm Indication Signal (AIS) is only               applicable for VTs in the floating mode of operation.               VT-Path AIS is used to alert the downstream VT Path               Terminating Entity (PTE) of an upstream failure.  Upon               detection of a failure, Line AIS, or STS-Path AIS, an STS               PTE will generate downstream VT-Path AIS if the STS               Synchronous Payload Envelope (SPE) is carrying floating               VTs.  VT-Path AIS is specified in ANSI T1.105 as all ones               in bytes V1, V2, V3, and V4, as well as all ones in the               entire VT SPE.  The following criteria are specific to               VT-Path AIS defect:               --  VT-Path AIS defect is detected by a VT PTE as all               ones in bytes V1 and V2 in three contiguous VT               superframes.               --  VT-Path AIS defect is terminated when valid VT               pointer with a valid VT size is detected with the NDF set               to "1001" (inverted) for one VT superframe, or "0110"AToM MIB Working Group                                         [Page 11]

RFC 1595                   SONET/SDH Objects                  March 1994               (normal) for three contiguous VT superframes are               detected.               A VT-Path AIS failure is declared when the VT-Path AIS               defect persists for 2.5 +/- 0.5 seconds.  A VT-Path AIS               failure is cleared when the VT-Path AIS defect is absent               for 10 +/- 0.5 seconds.          Line Remote Defect Indication               Line Remote Defect Indication (RDI) (aka Line FERF)               signal is the occurrence of a "110" pattern in bit               positions 6, 7, and 8 of the K2 byte in STS-1 #1 of the               STS-N signal.  Line RDI is defined in ANSI T1.105.  The               following criteria are specific to Line RDI defect:               --  Line RDI defect is a "110" code in bits 6, 7, and 8               of the K2 byte of in STS-1 #1 in five consecutive frames.               --  Line RDI defect is terminated when any code other               than "110" is detected in bits 6, 7, and 8 of the K2 byte               in five consecutive frames.               A Line Remote Failure Indication (RFI) failure is               declared when the incoming Line RDI defects lasts for 2.5               +/- 0.5 seconds.  The Line RFI failure is cleared when no               Line RDI defects are detected for 10 +/- 0.5 seconds.          STS-Path Remote Defect Indication               STS-Path RDI (aka STS-Path FERF) signal shall be               generated within 100 milliseconds by the STS PTE upon               detection of an AIS or LOP defect.  Transmission of the               STS-Path RDI signal shall cease within 100 milliseconds               when the STS PTE no longer detects STS-Path AIS or STS-               Path LOP defect.  The STS-Path RDI  shall accurately               report the presence or absence of STS-Path AIS or STS-               Path LOP defects.  STS-Path RDI defect is defined in ANSI               T1.105.  The following requirements are specific to the               STS-Path RDI defect:               --  STS-Path RDI is detected by all STS PTEs.  STS-Path               RDI is detected by the upstream STS PTE as a "1" in bit               five of the Path Status byte (G1) for five contiguous               frames.               --  Removal of STS-Path Remote Defect Indication is               detected by a "0" in bit 5 of the G1 byte in five               contiguous frames.AToM MIB Working Group                                         [Page 12]

RFC 1595                   SONET/SDH Objects                  March 1994               A STS-Path Remote Failure Indication (RFI) failure is               declared when the incoming STS-Path RDI defects lasts for               2.5 +/- 0.5 seconds.  The STS-Path RFI failure is cleared               when no STS-Path RDI defects are detected for 10 +/- 0.5               seconds.          VT-Path Remote Defect Indication               VT Path RDI (aka VT Path FERF) signal shall be generated               within 100 milliseconds by the VT PTE upon detection of a               VT-Path AIS or LOP defect.  Transmission of the VT-Path               RDI signal shall cease within 100 milliseconds when the               VT PTE no longer detects VT-Path AIS or VT-Path LOP               defect.  The VT-Path RDI  shall accurately report the               presence or absence of VT-Path AIS or VT-Path LOP               defects.  VT-Path RDI defect is defined in ANSI T1.105.               The following requirements are specific to VT-Path RDI               defect:               --  VT-Path RDI defect is the occurrence of a "1" in bit               4 of the VT-Path Overhead byte (V5) in five contiguous               frames.               --  VT-Path RDI defect is terminated when a "0" is               detected in bit 4 of the VT-Path Overhead byte (V5) for               five contiguous frames.               A VT-Path Remote Failure Indication (RFI) (derived)               failure is declared when the incoming VT-Path RDI defects               lasts for 2.5 +/- 0.5 seconds.  The VT-Path RFI failure               is cleared when no VT-Path RDI defects are detected for               10 +/- 0.5 seconds.          VT-Path Remote Failure Indication               The VT-Path RFI signal is only required for the case of               byte synch mapped DS1s where the DS1 frame bit is not               mapped.  The VT-Path RFI is specified in ANSI T1.105,               where it is currently called VT path yellow.  When               provided, the VT-Path RFI signal is used to indicate the               occurrence of far-end failures.  When the VT-Path RFI is               not provided, far-end failures are derived from local               timing of the VT-Path RDI defect.  The VT-Path RFI               failure is declared within 5 ms of detecting the incoming               VT-Path RFI Signal.  The VT-Path Remote Failure               Indication (RFI) failure is cleared within 50 ms of               detecting the removal of the incoming VT-Path RFI signal.AToM MIB Working Group                                         [Page 13]

RFC 1595                   SONET/SDH Objects                  March 1994          Coding Violation               Coding Violations (CV) are Bit Interleaved Parity (BIP)               errors that are detected in the incoming signal.  CV               counters are incremented for each BIP error detected.               That is, each BIP-8 can detect up to eight errors per               STS-N frame, with each error incrementing the CV counter.               Section CVs shall be collected using the BIP-8 in the B1               byte located in the Section Overhead of STS-1 #1.  Line               CVs shall be collected using the BIP-8s in B2 bytes               located in the Line Overhead of each STS-1 (since all CVs               on an STS-N line are counted together, this is equivalent               to counting each error in the BIP-8*N contained in the B2               bytes of the STS-N Line Overhead).  Thus, on an STS-N               signal, up to 8 x N CVs may occur in each frame.  Path               CVs shall be collected using the BIP-8 in the B3 byte of               the STS-Path Overhead of the STS SPE.  VT CVs shall be               collected using the BIP-2 in the V5 overhead byte of the               floating VT.          Errored Seconds               At each layer, an Errored Second (ES) is a second with               one or more Coding Violations at that layer OR one or               more incoming defects (e.g., SEF, LOS, AIS, LOP) at that               layer has occurred.          Severely Errored Seconds               At each layer, an Severely Errored Second (SES) is a               second with x or more CVs at that layer, or a second               during which at least one or more incoming defects at               that layer has occurred.  Values of x vary depending on               the line rate and the Bit Error Rate.  SeeSection 3.4               for values for x.          Severely Errored Framing Seconds               A Severely Errored Framing Second (SEFS) is a seconds               with containing one or more SEF events.  This counter is               only counted at the Section Layer.          Unavailable Seconds               At the Line, Path, and VT layers, an unavailable second               is calculated by counting the number of seconds that the               interface is unavailable.  At each layer, the SONET/SDH               interface is said to be unavailable at the onset of 10               contiguous SESs.  The 10 SESs are included in unavailable               time.  Once unavailable, the SONET/SDH interface becomes               available at the onset of 10 contiguous seconds with no               SESs.  The 10 seconds with no SESs are excluded from               unavailable time.  With respect to the SONET/SDH errorAToM MIB Working Group                                         [Page 14]

RFC 1595                   SONET/SDH Objects                  March 1994               counts at each layer, all counters at that layer are               incremented while the SONET/SDH interface is deemed               available at that layer.  While the interface is deemed               unavailable at that layer, the only count that is               incremented is UASs at that layer.               A special case exists when the 10 or more second period               crosses the 900 second statistics window boundary, as the               foregoing description implies that the SES and UAS               counters must be adjusted when the Unavailable Signal               State is entered. Clearly, successive GETs of the               affected sonetPathIntervalSES and sonetPathIntervalUAS               (for the Line and VT also) objects will return differing               values if the first GET occurs during the first few               seconds of the window.  This is viewed as an unavoidable               side-effect of selecting the presently defined managed               objects as a basis for this memo.          Unequipped               If a Path or VT connection is not provisioned (idle) the               SONET equipment will signal this state by transmitting               the Path or VT Signal Label as follows:               - byte C2 of the STS Path Overhead equal to 0 for an               unequipped Path,               - byte V5 of the VT Path Overhead equal to 0 for an               unequipped VT.          Signal Label Mismatch               A Path or VT connection is not correctly provisioned if a               received Path or VT Signal Label mismatch occurs.  A               received Signal Label is considered mismatched if it does               not equal either the locally provisioned value or the               value 'equipped non-specific' (1 hex). Note that any               received non-zero Signal Label is considered a locally               provisioned value of 'equipped non-specific'.  Only in-               service, provisioned Path Terminating equipment can               detect mismatched Signal labels. It is considered               provisioned if it has been configured for a mapping and               has been assigned signals to and from which the mapping               takes place.          Circuit Identifier               This is a character string specified by the circuit               vendor, and is useful when communicating with the vendor               during the troubleshooting process.AToM MIB Working Group                                         [Page 15]

RFC 1595                   SONET/SDH Objects                  March 19943.6.  Values for x for the Section, Line, Path, and VT Layers                    Value for x for SONET/SDH Section SES Definition               Rate            x               Minimum Bit Error Rate               =======================================================               OC-1             9                      1.5 x 10^-7               0C-3            16                        1 x 10^-7               OC-9            47                        1 x 10^-7               OC-12           63                        1 x 10^-7               OC-18           94                        1 x 10^-7               OC-24          125                        1 x 10^-7               OC-36          187                        1 x 10^-7               OC-48          249                        1 x 10^-7                    Value for x for SONET/SDH Line SES Definition               Rate            x               Minimum Bit Error Rate               =======================================================               OC-1            12                       2 x 10^-7               0C-3            32                       2 x 10^-7               OC-9            94                       2 x 10^-7               OC-12          124                       2 x 10^-7               OC-18          186                       2 x 10^-7               OC-24          248                       2 x 10^-7               OC-36          370                       2 x 10^-7               OC-48          494                       2 x 10^-7                    Value for x for SONET/SDH STS-Path SES Definition               Rate            x               Minimum Bit Error Rate               =======================================================               STS-1            9                       1.5 x 10^-7               STS-3           16                         1 x 10^-7                    Value for x for SONET/SDH VT-Path SES Definition               Rate            x               Minimum Bit Error Rate               =======================================================               VT1.5            4                       2 x 10^-6               VT2              6                       2 x 10^-6               VT3              8                       2 x 10^-6               VT6             14                       2 x 10^-6AToM MIB Working Group                                         [Page 16]

RFC 1595                   SONET/SDH Objects                  March 19944.  Object Definitions          SONET-MIB DEFINITIONS ::= BEGIN          IMPORTS              MODULE-IDENTITY, OBJECT-TYPE, Counter32, Gauge32,              Integer32,                    FROM SNMPv2-SMI              TEXTUAL-CONVENTION, DisplayString                    FROM SNMPv2-TC              MODULE-COMPLIANCE, OBJECT-GROUP                    FROM SNMPv2-CONF              ifIndex, transmission                    FROMRFC-1213;          --  This is the MIB module for the SMDS Interface objects.          sonetMIB MODULE-IDENTITY              LAST-UPDATED "9401030000Z"              ORGANIZATION "IETF AToM MIB Working Group"              CONTACT-INFO                "        Tracy Brown                 Postal: Bell Communications Research                         331 Newman Springs Road                         P.O. Box 7020                         Red Bank, NJ  07701-7020                         US                    Tel: +1 908 758 2107                    Fax: +1 908 758 4177                 E-mail: tacox@mail.bellcore.com                         Kaj Tesink                 Postal: Bell Communications Research                         331 Newman Springs Road                         P.O. Box 7020                         Red Bank, NJ  07701-7020                         US                    Tel: +1 908 758 5254                    Fax: +1 908 758 4196AToM MIB Working Group                                         [Page 17]

RFC 1595                   SONET/SDH Objects                  March 1994                 E-mail: kaj@cc.bellcore.com"              DESCRIPTION                   "The MIB module to describe                   SONET/SDH interfaces objects."              ::= { transmission 39 }          --  This is the MIB module for the SONET/SDH objects          sonetObjects      OBJECT IDENTIFIER ::= { sonetMIB 1 }          sonetObjectsPath  OBJECT IDENTIFIER ::= { sonetMIB 2 }          sonetObjectsVT    OBJECT IDENTIFIER ::= { sonetMIB 3 }          -- groups in the SONET/SDH MIB module          sonetMedium       OBJECT IDENTIFIER ::= { sonetObjects 1 }          sonetSection      OBJECT IDENTIFIER ::= { sonetObjects 2 }          sonetLine         OBJECT IDENTIFIER ::= { sonetObjects 3 }          sonetFarEndLine   OBJECT IDENTIFIER ::= { sonetObjects 4 }          sonetPath         OBJECT IDENTIFIER ::= { sonetObjectsPath 1 }          sonetFarEndPath   OBJECT IDENTIFIER ::= { sonetObjectsPath 2 }          sonetVT           OBJECT IDENTIFIER ::= { sonetObjectsVT 1 }          sonetFarEndVT     OBJECT IDENTIFIER ::= { sonetObjectsVT 2 }          -- the SONET/SDH Medium group          -- SONET/SDH interfaces for some applications may be          -- electrical interfaces and not optical interfaces.          -- This group handles the configuration information for          -- both optical SONET/SDH interfaces and electrical          -- SONET/SDH interfaces.          sonetMediumTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetMediumEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTIONAToM MIB Working Group                                         [Page 18]

RFC 1595                   SONET/SDH Objects                  March 1994                 "The SONET/SDH Medium table."               ::= { sonetMedium 1 }          sonetMediumEntry OBJECT-TYPE              SYNTAX  SonetMediumEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "An entry in the SONET/SDH Medium table."              INDEX   { ifIndex }               ::= { sonetMediumTable 1 }          SonetMediumEntry ::=              SEQUENCE {                   sonetMediumType               INTEGER,                   sonetMediumTimeElapsed        Integer32,                   sonetMediumValidIntervals     Integer32,                   sonetMediumLineCoding         INTEGER,                   sonetMediumLineType           INTEGER,                   sonetMediumCircuitIdentifier  DisplayString              }          sonetMediumType OBJECT-TYPE              SYNTAX  INTEGER  {                         sonet(1),                         sdh(2)                      }              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "This variable identifies whether a SONET                 or a SDH signal is used across this interface."              ::= { sonetMediumEntry 1 }          sonetMediumTimeElapsed OBJECT-TYPE              SYNTAX  Integer32 (1..900)              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The number of seconds, including partial                 seconds, that have elapsed since the beginning of                 the current error-measurement period."              ::= { sonetMediumEntry 2 }          sonetMediumValidIntervals OBJECT-TYPE              SYNTAX  Integer32 (0..96)              MAX-ACCESS  read-onlyAToM MIB Working Group                                         [Page 19]

RFC 1595                   SONET/SDH Objects                  March 1994              STATUS  current              DESCRIPTION                 "The number of previous intervals for which valid                 data has been stored.  A SONET device must support                 at least n intervals.                 The minimum value of n is 4.                 The default of n is 32.                 The maximum value of n is 96.                 The value of this object will be n unless                 the device was brought online within the last                 (nx15) minutes, in which case the value will be the                 number of complete 15 minute intervals the device has                 been online."              ::= { sonetMediumEntry 3 }          sonetMediumLineCoding OBJECT-TYPE              SYNTAX  INTEGER {                          sonetMediumOther(1),                          sonetMediumB3ZS(2),                          sonetMediumCMI(3),                          sonetMediumNRZ(4),                          sonetMediumRZ(5)                      }              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "This variable describes the line coding for                 this interface. The B3ZS and CMI are used for                 electrical SONET/SDH signals (STS-1 and STS-3).                 The Non-Return to Zero (NRZ) and the Return                 to Zero are used for optical SONET/SDH signals."              ::= { sonetMediumEntry 4 }          sonetMediumLineType OBJECT-TYPE              SYNTAX  INTEGER {                          sonetOther(1),                          sonetShortSingleMode(2),                          sonetLongSingleMode(3),                          sonetMultiMode(4),                          sonetCoax(5),                          sonetUTP(6)                      }              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "This variable describes the line type for                 this interface. The line types are                 Short and Long RangeAToM MIB Working Group                                         [Page 20]

RFC 1595                   SONET/SDH Objects                  March 1994                 Single Mode fiber or Multi-Mode fiber interfaces,                 and coax and UTP for electrical interfaces.  The                 value sonetOther should be used when the Line Type is                 not one of the listed values."              ::= { sonetMediumEntry 5 }          sonetMediumCircuitIdentifier OBJECT-TYPE              SYNTAX  DisplayString (SIZE (0..255))              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "This variable contains the transmission                 vendor's circuit identifier, for the                 purpose of facilitating troubleshooting."              ::= { sonetMediumEntry 6 }          -- the SONET/SDH Section group          -- this group consists of 2 tables:          -- - the SONET/SDH Section Current Table          -- - the SONET/SDH Section Interval Table          -- the SONET/SDH Section Current Table          -- The SONET/SDH Section          -- current table contains various statistics          -- being collected for the current 15 minute interval.          sonetSectionCurrentTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetSectionCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "The SONET/SDH Section Current table."               ::= { sonetSection 1 }          sonetSectionCurrentEntry OBJECT-TYPE              SYNTAX  SonetSectionCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "An entry in the SONET/SDH Section Current table."              INDEX   { ifIndex }               ::= { sonetSectionCurrentTable 1 }AToM MIB Working Group                                         [Page 21]

RFC 1595                   SONET/SDH Objects                  March 1994          SonetSectionCurrentEntry ::=              SEQUENCE {                  sonetSectionCurrentStatus   Integer32,                  sonetSectionCurrentESs      Gauge32,                  sonetSectionCurrentSESs     Gauge32,                  sonetSectionCurrentSEFSs    Gauge32,                  sonetSectionCurrentCVs      Gauge32              }          sonetSectionCurrentStatus OBJECT-TYPE              SYNTAX  Integer32 (1..6)              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "This variable indicates the                 status of the interface.                 The sonetSectionCurrentStatus                 is a bit map represented                 as a sum, therefore,                 it can represent multiple defects                 simultaneously.                 The sonetSectionNoDefect should be                 set if and only if                 no other flag is set.                 The various bit positions are:                       1   sonetSectionNoDefect                       2   sonetSectionLOS                       4   sonetSectionLOF"               ::= { sonetSectionCurrentEntry 1 }          sonetSectionCurrentESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of Errored                 Seconds encountered by a SONET/SDH                 Section in the current 15 minute interval."               ::= { sonetSectionCurrentEntry 2 }          sonetSectionCurrentSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number ofAToM MIB Working Group                                         [Page 22]

RFC 1595                   SONET/SDH Objects                  March 1994                 Severely Errored Seconds                 encountered by a SONET/SDH Section in the current 15                 minute interval."               ::= { sonetSectionCurrentEntry 3 }          sonetSectionCurrentSEFSs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of                 Severely Errored Framing Seconds                 encountered by a SONET/SDH Section in the current                 15 minute interval."              ::= { sonetSectionCurrentEntry 4 }          sonetSectionCurrentCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of Coding                 Violations encountered by a                 SONET/SDH Section in the current 15 minute interval."               ::= { sonetSectionCurrentEntry 5 }          -- the SONET/SDH Section Interval Table          -- The SONET/SDH Section Interval Table          -- contains various statistics          -- collected by each system over a maximum          -- of the previous 24 hours of          -- operation.  The past 24 hours may be broken into 96          -- completed 15 minute intervals.          -- A system is required to store at          -- least 4 completed 15 minute interval.          -- The default value is 32 intervals.          sonetSectionIntervalTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetSectionIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "The SONET/SDH Section Interval table."               ::= { sonetSection 2 }          sonetSectionIntervalEntry OBJECT-TYPEAToM MIB Working Group                                         [Page 23]

RFC 1595                   SONET/SDH Objects                  March 1994              SYNTAX  SonetSectionIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "An entry in the SONET/SDH Section Interval table."              INDEX   { ifIndex,                        sonetSectionIntervalNumber }               ::= { sonetSectionIntervalTable 1 }          SonetSectionIntervalEntry ::=              SEQUENCE {                   sonetSectionIntervalNumber  Integer32,                   sonetSectionIntervalESs     Gauge32,                   sonetSectionIntervalSESs    Gauge32,                   sonetSectionIntervalSEFSs   Gauge32,                   sonetSectionIntervalCVs     Gauge32              }          sonetSectionIntervalNumber OBJECT-TYPE              SYNTAX  Integer32 (1..96)              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                "A number between 1 and 96, which identifies the                interval for which the set of statistics is available.                The interval identified by 1 is the most recently                completed 15 minute interval,                and the interval identified                by N is the interval immediately preceding the                one identified                by N-1."               ::= { sonetSectionIntervalEntry 1 }          sonetSectionIntervalESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of                 Errored Seconds encountered                 by a SONET/SDH Section in a                 particular 15-minute interval                 in the past 24 hours."               ::= { sonetSectionIntervalEntry 2 }          sonetSectionIntervalSESs OBJECT-TYPE              SYNTAX  Gauge32AToM MIB Working Group                                         [Page 24]

RFC 1595                   SONET/SDH Objects                  March 1994              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of                 Severely Errored Seconds                 encountered by a SONET/SDH Section in a                 particular 15-minute interval                 in the past 24 hours."              ::= { sonetSectionIntervalEntry 3 }          sonetSectionIntervalSEFSs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of                 Severely Errored Framing Seconds                 encountered by a SONET/SDH Section in a                 particular 15-minute interval                 in the past 24 hours."              ::= { sonetSectionIntervalEntry 4 }          sonetSectionIntervalCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of Coding                 Violations encountered by a                 SONET/SDH Section in a particular 15-minute interval                 in the past 24 hours."              ::= { sonetSectionIntervalEntry 5 }          -- the SONET/SDH Line group          -- this group consists of 2 tables:          -- - the SONET/SDH Line Current Table          -- - the SONET/SDH Line Interval Table          -- the SONET/SDH Line Current Table          -- The SONET/SDH Line          -- current table contains various statistics          -- being collected for the current 15 minute interval.          sonetLineCurrentTable OBJECT-TYPEAToM MIB Working Group                                         [Page 25]

RFC 1595                   SONET/SDH Objects                  March 1994              SYNTAX  SEQUENCE OF SonetLineCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                "The SONET/SDH Line Current table."              ::= { sonetLine 1 }          sonetLineCurrentEntry OBJECT-TYPE              SYNTAX  SonetLineCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                "An entry in the SONET/SDH Line Current table."              INDEX   { ifIndex }              ::= { sonetLineCurrentTable 1 }          SonetLineCurrentEntry ::=              SEQUENCE {                   sonetLineCurrentStatus    Integer32,                   sonetLineCurrentESs       Gauge32,                   sonetLineCurrentSESs      Gauge32,                   sonetLineCurrentCVs       Gauge32,                   sonetLineCurrentUASs      Gauge32               }          sonetLineCurrentStatus OBJECT-TYPE              SYNTAX  Integer32 (1..6)              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "This variable indicates the                 status of the interface.                 The sonetLineCurrentStatus                 is a bit map represented                 as a sum, therefore,                 it can represent multiple defects                 simultaneously.                 The sonetLineNoDefect should be                 set if and only if                 no other flag is set.                 The various bit positions are:                  1   sonetLineNoDefect                  2   sonetLineAIS                  4   sonetLineRDI"               ::= { sonetLineCurrentEntry 1 }AToM MIB Working Group                                         [Page 26]

RFC 1595                   SONET/SDH Objects                  March 1994          sonetLineCurrentESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Errored               Seconds encountered by a SONET/SDH               Line in the current 15 minute interval."              ::= { sonetLineCurrentEntry 2 }          sonetLineCurrentSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Severely Errored Seconds               encountered by a SONET/SDH Line in the current 15               minute               interval."              ::= { sonetLineCurrentEntry 3 }          sonetLineCurrentCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Coding               Violations encountered by a               SONET/SDH Line in the current 15 minute interval."              ::= { sonetLineCurrentEntry 4 }          sonetLineCurrentUASs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Unavailable Seconds               encountered by a SONET/SDH Line in the current 15               minute               interval."              ::= { sonetLineCurrentEntry 5 }          -- the SONET/SDH Line Interval Table          -- The SONET/SDH Line Interval TableAToM MIB Working Group                                         [Page 27]

RFC 1595                   SONET/SDH Objects                  March 1994          -- contains various statistics          -- collected by each system over a maximum          -- of the previous 24 hours of          -- operation.  The past 24 hours may be broken into 96          -- completed 15 minute intervals.          -- A system is required to store at          -- least 4 completed 15 minute interval.          -- The default value is 32 intervals.          sonetLineIntervalTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetLineIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "The SONET/SDH Line Interval table."               ::= { sonetLine 2 }          sonetLineIntervalEntry OBJECT-TYPE              SYNTAX  SonetLineIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "An entry in the SONET/SDH Line Interval table."             INDEX   { ifIndex,                       sonetLineIntervalNumber }             ::= { sonetLineIntervalTable 1 }          SonetLineIntervalEntry ::=              SEQUENCE {                  sonetLineIntervalNumber    Integer32,                  sonetLineIntervalESs       Gauge32,                  sonetLineIntervalSESs      Gauge32,                  sonetLineIntervalCVs       Gauge32,                  sonetLineIntervalUASs      Gauge32              }          sonetLineIntervalNumber OBJECT-TYPE              SYNTAX  Integer32 (1..96)              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                  "A number between 1 and 96, which identifies the                  interval for which the set of statistics is available.                  The interval identified by 1 is the most recently                  completed 15 minute interval,                  and the interval identified                  by N is the interval immediately preceding theAToM MIB Working Group                                         [Page 28]

RFC 1595                   SONET/SDH Objects                  March 1994                  one identified                  by N-1."               ::= { sonetLineIntervalEntry 1 }          sonetLineIntervalESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of                 Errored Seconds encountered                 by a SONET/SDH Line in a                 particular 15-minute interval                 in the past 24 hours."               ::= { sonetLineIntervalEntry 2 }          sonetLineIntervalSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                 "The counter associated with the number of                 Severely Errored Seconds                 encountered by a SONET/SDH Line in a                 particular 15-minute interval                 in the past 24 hours."                ::= { sonetLineIntervalEntry 3 }          sonetLineIntervalCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                "The counter associated with the number of Coding                Violations encountered by a                SONET/SDH Line in a                particular 15-minute interval                in the past 24 hours."              ::= { sonetLineIntervalEntry 4 }          sonetLineIntervalUASs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                "The counter associated with the                number of Unavailable Seconds                encountered by a SONET/SDH Line inAToM MIB Working Group                                         [Page 29]

RFC 1595                   SONET/SDH Objects                  March 1994                a particular 15-minute interval                in the past 24 hours."              ::= { sonetLineIntervalEntry 5 }          -- The SONET/SDH Far End Line group.          -- This group may only be implemented by SONET/SDH (LTEs)          -- systems that provide for a far end block error (FEBE)          -- information at the SONET/SDH Line Layer.          -- This group consists of two tables:          --    SONET/SDH Far End Line Current Table          --    SONET/SDH Far End Line Interval Table          -- The SONET/SDH Far End Line Current Table          -- The SONET/SDH Far End Line Current table contains          -- various statistics being          -- collected for the current 15 minute interval.          -- The statistics are collected from the far end          -- block error code (FEBE)          -- within the third Z2 byte of the Line Overhead          -- in Broadband ISDN applications.          -- The definitions are the same as described for          -- the near-end information.          sonetFarEndLineCurrentTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetFarEndLineCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                "The SONET/SDH Far End Line Current table."              ::= { sonetFarEndLine 1 }          sonetFarEndLineCurrentEntry OBJECT-TYPE              SYNTAX  SonetFarEndLineCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                "An entry in the SONET/SDH Far End Line Current table."              INDEX   { ifIndex }              ::= { sonetFarEndLineCurrentTable 1 }          SonetFarEndLineCurrentEntry ::=              SEQUENCE {                  sonetFarEndLineCurrentESs       Gauge32,AToM MIB Working Group                                         [Page 30]

RFC 1595                   SONET/SDH Objects                  March 1994                  sonetFarEndLineCurrentSESs      Gauge32,                  sonetFarEndLineCurrentCVs       Gauge32,                  sonetFarEndLineCurrentUASs      Gauge32                 }          sonetFarEndLineCurrentESs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of Far                 Far End Errored Seconds encountered by a SONET/SDH                 interface in the current 15 minute interval."             ::= { sonetFarEndLineCurrentEntry 1 }          sonetFarEndLineCurrentSESs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of                 Far End Severely Errored Seconds                 encountered by a SONET/SDH Medium/Section/Line                 interface in the current 15 minute                 interval."             ::= { sonetFarEndLineCurrentEntry 2 }          sonetFarEndLineCurrentCVs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of                 Far End Coding Violations reported via                 the far end block error count                 encountered by a                 SONET/SDH Medium/Section/Line                 interface in the current 15 minute interval."             ::= { sonetFarEndLineCurrentEntry 3 }          sonetFarEndLineCurrentUASs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of                 Far End Unavailable SecondsAToM MIB Working Group                                         [Page 31]

RFC 1595                   SONET/SDH Objects                  March 1994                 encountered by a                 SONET/SDH Medium/Section/Line                 interface in the current 15 minute interval."             ::= { sonetFarEndLineCurrentEntry 4 }          -- The SONET/SDH Far End Line Interval Table          -- The SONET/SDH Far End Line Interval Table          -- contains various statistics          -- collected by each system over a maximum          -- of the previous 24 hours of          -- operation.  The past 24 hours may be broken into 96          -- completed 15 minute intervals.          -- A system is required to store at          -- least 4 completed 15 minute interval.          -- The default value is 32 intervals.          sonetFarEndLineIntervalTable OBJECT-TYPE             SYNTAX  SEQUENCE OF SonetFarEndLineIntervalEntry             MAX-ACCESS  not-accessible             STATUS  current             DESCRIPTION                "The SONET/SDH Far End Line Interval table."             ::= { sonetFarEndLine 2 }          sonetFarEndLineIntervalEntry OBJECT-TYPE             SYNTAX  SonetFarEndLineIntervalEntry             MAX-ACCESS  not-accessible             STATUS  current             DESCRIPTION               "An entry in the SONET/SDH Far               End Line Interval table."             INDEX   { ifIndex,                       sonetFarEndLineIntervalNumber }             ::= { sonetFarEndLineIntervalTable 1 }          SonetFarEndLineIntervalEntry ::=              SEQUENCE {                   sonetFarEndLineIntervalNumber    Integer32,                   sonetFarEndLineIntervalESs       Gauge32,                   sonetFarEndLineIntervalSESs      Gauge32,                   sonetFarEndLineIntervalCVs       Gauge32,                   sonetFarEndLineIntervalUASs      Gauge32              }          sonetFarEndLineIntervalNumber OBJECT-TYPEAToM MIB Working Group                                         [Page 32]

RFC 1595                   SONET/SDH Objects                  March 1994             SYNTAX  Integer32 (1..96)             MAX-ACCESS  not-accessible             STATUS  current             DESCRIPTION                   "A number between 1 and 96, which identifies the                   interval for which the set of statistics is available.                   The interval identified by 1 is the most recently                   completed 15 minute interval,                   and the interval identified                   by N is the interval immediately preceding the                   one identified                   by N-1."             ::= { sonetFarEndLineIntervalEntry 1 }          sonetFarEndLineIntervalESs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                  "The counter associated with the number of                  Far End Errored Seconds encountered                  by a SONET/SDH Line                  interface in a particular 15-minute interval                  in the past 24 hours."            ::= { sonetFarEndLineIntervalEntry 2 }          sonetFarEndLineIntervalSESs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                  "The counter associated with the number of                  Far End Severely Errored Seconds                  encountered by a SONET/SDH Line                  interface in a particular 15-minute interval                  in the past 24 hours."            ::= { sonetFarEndLineIntervalEntry 3 }          sonetFarEndLineIntervalCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                   "The counter associated with the number of                   Far End Coding Violations reported via                   the far end block error count                   encountered by a                   SONET/SDH LineAToM MIB Working Group                                         [Page 33]

RFC 1595                   SONET/SDH Objects                  March 1994                   interface in a particular 15-minute interval                   in the past 24 hours."              ::= { sonetFarEndLineIntervalEntry 4 }          sonetFarEndLineIntervalUASs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of                 Far End Unavailable Seconds                 encountered by a                 SONET/SDH Line                 interface in a particular 15-minute interval                 in the past 24 hours."             ::= { sonetFarEndLineIntervalEntry 5 }          -- the SONET/SDH Path group          -- this group consists of 2 tables:          -- - the SONET/SDH Path Current Table          -- - the SONET/SDH Path Interval Table          -- the SONET/SDH Path Current Table          -- The SONET/SDH Path          -- current table contains various statistics          -- being collected for the current 15 minute interval.          sonetPathCurrentTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetPathCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION               "The SONET/SDH Path Current table."          ::= { sonetPath 1 }          sonetPathCurrentEntry OBJECT-TYPE              SYNTAX  SonetPathCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION               "An entry in the SONET/SDH Path Current table."              INDEX   { ifIndex }          ::= { sonetPathCurrentTable 1 }AToM MIB Working Group                                         [Page 34]

RFC 1595                   SONET/SDH Objects                  March 1994          SonetPathCurrentEntry ::=              SEQUENCE {                  sonetPathCurrentWidth      INTEGER,                  sonetPathCurrentStatus     Integer32,                  sonetPathCurrentESs        Gauge32,                  sonetPathCurrentSESs       Gauge32,                  sonetPathCurrentCVs        Gauge32,                  sonetPathCurrentUASs       Gauge32              }          sonetPathCurrentWidth OBJECT-TYPE              SYNTAX  INTEGER  {                      sts1(1),                      sts3cSTM1(2),                      sts12cSTM4(3),                      sts24c(4),                      sts48cSTM16(5)               }              MAX-ACCESS  read-write              STATUS  current              DESCRIPTION               "A value that indicates the type of the SONET/SDH               Path.  For SONET, the assigned types are               the STS-Nc SPEs, where N = 1, 3, 12, 24, and 48.               STS-1 is equal to 51.84 Mbps.  For SDH, the assigned               types are the STM-Nc VCs, where N = 1, 4, and 16."          ::= { sonetPathCurrentEntry 1 }          sonetPathCurrentStatus OBJECT-TYPE              SYNTAX  Integer32 (1..14)              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                "This variable indicates the                status of the interface.                The sonetPathCurrentStatus                is a bit map represented                as a sum, therefore,                it can represent multiple defects                simultaneously.                The sonetPathNoDefect should be                set if and only if                no other flag is set.                The various bit positions are:                   1   sonetPathNoDefect                   2   sonetPathSTSLOPAToM MIB Working Group                                         [Page 35]

RFC 1595                   SONET/SDH Objects                  March 1994                   4   sonetPathSTSAIS                   8   sonetPathSTSRDI                  16   sonetPathUnequipped                  32   sonetPathSignalLabelMismatch"          ::= { sonetPathCurrentEntry 2 }          sonetPathCurrentESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Errored               Seconds encountered by a SONET/SDH               Path in the current 15 minute interval."          ::= { sonetPathCurrentEntry 3 }          sonetPathCurrentSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Severely Errored Seconds               encountered by a SONET/SDH Path in the current 15               minute               interval."          ::= { sonetPathCurrentEntry 4 }          sonetPathCurrentCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Coding               Violations encountered by a               SONET/SDH Path in the current 15 minute interval."          ::= { sonetPathCurrentEntry 5 }          sonetPathCurrentUASs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Unavailable Seconds               encountered by a Path in the current               15 minute, interval."          ::= { sonetPathCurrentEntry 6 }AToM MIB Working Group                                         [Page 36]

RFC 1595                   SONET/SDH Objects                  March 1994          -- the SONET/SDH Path Interval Table          -- The SONET/SDH Path Interval Table          -- contains various statistics          -- collected by each system over a maximum          -- of the previous 24 hours of          -- operation.  The past 24 hours may be broken into 96          -- completed 15 minute intervals.          -- A system is required to store at          -- least 4 completed 15 minute interval.          -- The default value is 32 intervals.          sonetPathIntervalTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetPathIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION               "The SONET/SDH Path Interval table."          ::= { sonetPath 2 }          sonetPathIntervalEntry OBJECT-TYPE              SYNTAX  SonetPathIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION               "An entry in the SONET/SDH Path Interval table."              INDEX   { ifIndex,                        sonetPathIntervalNumber }          ::= { sonetPathIntervalTable 1 }          SonetPathIntervalEntry ::=              SEQUENCE {                   sonetPathIntervalNumber     Integer32,                   sonetPathIntervalESs        Gauge32,                   sonetPathIntervalSESs       Gauge32,                   sonetPathIntervalCVs        Gauge32,                   sonetPathIntervalUASs       Gauge32              }          sonetPathIntervalNumber OBJECT-TYPE              SYNTAX  Integer32 (1..96)              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "A number between 1 and 96, which identifies the                 interval for which the set of statistics is available.AToM MIB Working Group                                         [Page 37]

RFC 1595                   SONET/SDH Objects                  March 1994                 The interval identified by 1 is the most recently                 completed 15 minute interval,                 and the interval identified                 by N is the interval immediately preceding the                 one identified                 by N-1."          ::= { sonetPathIntervalEntry 1 }          sonetPathIntervalESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Errored Seconds encountered               by a SONET/SDH Path in a               particular 15-minute interval               in the past 24 hours."          ::= { sonetPathIntervalEntry 2 }          sonetPathIntervalSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Severely Errored Seconds               encountered by a SONET/SDH Path in               a particular 15-minute interval               in the past 24 hours."          ::= { sonetPathIntervalEntry 3 }          sonetPathIntervalCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Coding               Violations encountered by a               SONET/SDH Path in a particular 15-minute interval               in the past 24 hours."          ::= { sonetPathIntervalEntry 4 }          sonetPathIntervalUASs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTIONAToM MIB Working Group                                         [Page 38]

RFC 1595                   SONET/SDH Objects                  March 1994               "The counter associated with the number of               Unavailable Seconds               encountered by a Path in a               particular 15-minute interval               in the past 24 hours."          ::= { sonetPathIntervalEntry 5 }          -- The SONET/SDH Far End Path group          -- This group consists of two tables:          --  - SONET/SDH Far End Path Current Table          --  - SONET/SDH Far End Path Interval Table          -- The SONET/SDH Far End Path Current Table          -- The SONET/SDH Far End Path Current table          -- contains various statistics          -- being collected for the current 15 minute interval.          -- The statistics are collected from          -- the far end block error code          -- (FEBE) within the G1 byte of the Path Overhead.          -- The definitions are the same as described for          -- the near-end information.          sonetFarEndPathCurrentTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetFarEndPathCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                   "The SONET/SDH Far End Path Current table."              ::= { sonetFarEndPath 1 }          sonetFarEndPathCurrentEntry OBJECT-TYPE              SYNTAX  SonetFarEndPathCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                   "An entry in the SONET/SDH Far End Path Current table."              INDEX   { ifIndex }              ::= { sonetFarEndPathCurrentTable 1 }          SonetFarEndPathCurrentEntry ::=              SEQUENCE {                  sonetFarEndPathCurrentESs       Gauge32,                  sonetFarEndPathCurrentSESs      Gauge32,                  sonetFarEndPathCurrentCVs       Gauge32,                  sonetFarEndPathCurrentUASs      Gauge32AToM MIB Working Group                                         [Page 39]

RFC 1595                   SONET/SDH Objects                  March 1994              }          sonetFarEndPathCurrentESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                   "The counter associated with the number of Far                   Far End Errored Seconds encountered by a SONET/SDH                   interface in the current 15 minute interval."              ::= { sonetFarEndPathCurrentEntry 1 }          sonetFarEndPathCurrentSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                   "The counter associated with the number of                   Far End Severely Errored Seconds                   encountered by a SONET/SDH Path                   interface in the current 15 minute                   interval."              ::= { sonetFarEndPathCurrentEntry 2 }          sonetFarEndPathCurrentCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                   "The counter associated with the number of                   Far End Coding Violations reported via                   the far end block error count                   encountered by a                   SONET/SDH Path interface in                   the current 15 minute interval."              ::= { sonetFarEndPathCurrentEntry 3 }          sonetFarEndPathCurrentUASs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of                 Far End Unavailable Seconds                 encountered by a                 SONET/SDH Path interface in                 the current 15 minute interval."AToM MIB Working Group                                         [Page 40]

RFC 1595                   SONET/SDH Objects                  March 1994             ::= { sonetFarEndPathCurrentEntry 4 }          -- The SONET/SDH Far End Path Interval Table          -- The SONET/SDH Far End Path Interval Table          -- contains various statistics          -- collected by each system over a maximum          -- of the previous 24 hours of          -- operation.  The past 24 hours may be broken into 96          -- completed 15 minute intervals.          -- A system is required to store at          -- least 4 completed 15 minute interval.          -- The default value is 32 intervals.          sonetFarEndPathIntervalTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetFarEndPathIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                  "The SONET/SDH Far End Path Interval table."              ::= { sonetFarEndPath 2 }          sonetFarEndPathIntervalEntry OBJECT-TYPE              SYNTAX  SonetFarEndPathIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "An entry in the SONET/SDH Far                 End Path Interval table."              INDEX   { ifIndex,                        sonetFarEndPathIntervalNumber }              ::= { sonetFarEndPathIntervalTable 1 }          SonetFarEndPathIntervalEntry ::=              SEQUENCE {                   sonetFarEndPathIntervalNumber     Integer32,                   sonetFarEndPathIntervalESs        Gauge32,                   sonetFarEndPathIntervalSESs       Gauge32,                   sonetFarEndPathIntervalCVs        Gauge32,                   sonetFarEndPathIntervalUASs       Gauge32              }          sonetFarEndPathIntervalNumber OBJECT-TYPE             SYNTAX  Integer32 (1..96)             MAX-ACCESS  not-accessible             STATUS  currentAToM MIB Working Group                                         [Page 41]

RFC 1595                   SONET/SDH Objects                  March 1994             DESCRIPTION                  "A number between 1 and 96, which identifies the                  interval for which the set of statistics is available.                  The interval identified by 1 is the most recently                  completed 15 minute interval,                  and the interval identified                  by N is the interval immediately preceding the                  one identified                  by N-1."             ::= { sonetFarEndPathIntervalEntry 1 }          sonetFarEndPathIntervalESs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                  "The counter associated with the number of                  Far End Errored Seconds encountered                  by a SONET/SDH Path interface in a                  particular 15-minute interval                  in the past 24 hours."             ::= { sonetFarEndPathIntervalEntry 2 }          sonetFarEndPathIntervalSESs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                  "The counter associated with the number of                  Far End Severely Errored Seconds                  encountered by a SONET/SDH Path interface                  in a particular 15-minute interval                  in the past 24 hours."             ::= { sonetFarEndPathIntervalEntry 3 }          sonetFarEndPathIntervalCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                   "The counter associated with the number of                   Far End Coding Violations reported via                   the far end block error count                   encountered by a                   SONET/SDH Path interface                   in a particular 15-minute interval                   in the past 24 hours."              ::= { sonetFarEndPathIntervalEntry 4 }AToM MIB Working Group                                         [Page 42]

RFC 1595                   SONET/SDH Objects                  March 1994          sonetFarEndPathIntervalUASs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of                 Far End Unavailable Seconds                 encountered by a                 SONET/SDH Path interface in                 a particular 15-minute interval                 in the past 24 hours."             ::= { sonetFarEndPathIntervalEntry 5 }          -- the SONET/SDH Virtual Tributary group          -- this group consists of 2 tables:          -- - the SONET/SDH VT Current Table          -- - the SONET/SDH VT Interval Table          -- For SDH signals, virtual tributaries are          -- called VCs instead of VTs          -- A VT1.5 = VC11          -- A VT2 = VC12          -- A VT3 = none          -- A VT6 = VC3          -- the SONET/SDH VT Current Table          -- The SONET/SDH VT current table          -- contains various statistics          -- being collected for the          -- current 15 minute interval.          sonetVTCurrentTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetVTCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION               "The SONET/SDH VT Current table."          ::= { sonetVT 1 }          sonetVTCurrentEntry OBJECT-TYPE              SYNTAX  SonetVTCurrentEntry              MAX-ACCESS  not-accessible              STATUS  currentAToM MIB Working Group                                         [Page 43]

RFC 1595                   SONET/SDH Objects                  March 1994              DESCRIPTION               "An entry in the SONET/SDH VT Current table."              INDEX   { ifIndex }          ::= { sonetVTCurrentTable 1 }          SonetVTCurrentEntry ::=              SEQUENCE {                  sonetVTCurrentWidth      INTEGER,                  sonetVTCurrentStatus     Integer32,                  sonetVTCurrentESs        Gauge32,                  sonetVTCurrentSESs       Gauge32,                  sonetVTCurrentCVs        Gauge32,                  sonetVTCurrentUASs       Gauge32              }          sonetVTCurrentWidth OBJECT-TYPE              SYNTAX  INTEGER {                      vtWidth15VC11(1),                      vtWidth2VC12(2),                      vtWidth3(3),                      vtWidth6VC2(4),                      vtWidth6c(5)                   }              MAX-ACCESS  read-write              STATUS  current              DESCRIPTION              "A value that indicates the type of the SONET               VT and SDH VC.  Assigned widths are               VT1.5/VC11, VT2/VC12, VT3, VT6/VC2, and VT6c."          ::= { sonetVTCurrentEntry 1 }          sonetVTCurrentStatus OBJECT-TYPE              SYNTAX  Integer32 (1..30)              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                "This variable indicates the                status of the interface.                The sonetVTCurrentStatus                is a bit map represented                as a sum, therefore,                it can represent multiple defects                and failures                simultaneously.                The sonetVTNoDefect should be                set if and only if                no other flag is set.AToM MIB Working Group                                         [Page 44]

RFC 1595                   SONET/SDH Objects                  March 1994                The various bit positions are:                   1   sonetVTNoDefect                   2   sonetVTLOP                   4   sonetVTPathAIS                   8   sonetVTPathRDI                  16   sonetVTPathRFI                  32   sonetVTUnequipped                  64   sonetVTSignalLabelMismatch"          ::= { sonetVTCurrentEntry 2 }          sonetVTCurrentESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Errored               Seconds encountered by a SONET/SDH               VT in the current 15 minute interval."          ::= { sonetVTCurrentEntry 3 }          sonetVTCurrentSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Severely Errored Seconds               encountered by a SONET/SDH VT in the current 15 minute               interval."          ::= { sonetVTCurrentEntry 4 }          sonetVTCurrentCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Coding               Violations encountered by a               SONET/SDH VT in the current 15 minute interval."          ::= { sonetVTCurrentEntry 5 }          sonetVTCurrentUASs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Unavailable SecondsAToM MIB Working Group                                         [Page 45]

RFC 1595                   SONET/SDH Objects                  March 1994               encountered by a VT in the current               15 minute, interval."          ::= { sonetVTCurrentEntry 6 }          -- the SONET/SDH VT Interval Table          -- The SONET/SDH VT Interval Table          -- contains various statistics          -- collected by each system over a maximum          -- of the previous 24 hours of          -- operation.  The past 24 hours may be broken into 96          -- completed 15 minute intervals.          -- A system is required to store at          -- least 4 completed 15 minute interval.          -- The default value is 32 intervals.          sonetVTIntervalTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetVTIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION               "The SONET/SDH VT Interval table."          ::= { sonetVT 2 }          sonetVTIntervalEntry OBJECT-TYPE              SYNTAX  SonetVTIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION               "An entry in the SONET/SDH VT Interval table."              INDEX   { ifIndex,                        sonetVTIntervalNumber }          ::= { sonetVTIntervalTable 1 }          SonetVTIntervalEntry ::=              SEQUENCE {                  sonetVTIntervalNumber     Integer32,                  sonetVTIntervalESs        Gauge32,                  sonetVTIntervalSESs       Gauge32,                  sonetVTIntervalCVs        Gauge32,                  sonetVTIntervalUASs       Gauge32              }          sonetVTIntervalNumber OBJECT-TYPE              SYNTAX  Integer32 (1..96)              MAX-ACCESS  not-accessibleAToM MIB Working Group                                         [Page 46]

RFC 1595                   SONET/SDH Objects                  March 1994              STATUS  current              DESCRIPTION                "A number between 1 and 96, which identifies the                interval for which the set of statistics is available.                The interval identified by 1 is the most recently                completed 15 minute interval,                and the interval identified                by N is the interval immediately preceding the                one identified                by N-1."          ::= { sonetVTIntervalEntry 1 }          sonetVTIntervalESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Errored Seconds encountered               by a SONET/SDH VT in a particular 15-minute interval               in the past 24 hours."          ::= { sonetVTIntervalEntry 2 }          sonetVTIntervalSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Severely Errored Seconds               encountered by a SONET/SDH VT               in a particular 15-minute interval               in the past 24 hours."          ::= { sonetVTIntervalEntry 3 }          sonetVTIntervalCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of Coding               Violations encountered by a               SONET/SDH VT in a particular 15-minute interval               in the past 24 hours."          ::= { sonetVTIntervalEntry 4 }          sonetVTIntervalUASs OBJECT-TYPE              SYNTAX  Gauge32AToM MIB Working Group                                         [Page 47]

RFC 1595                   SONET/SDH Objects                  March 1994              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION               "The counter associated with the number of               Unavailable Seconds               encountered by a VT in a particular 15-minute interval               in the past 24 hours."          ::= { sonetVTIntervalEntry 5 }          -- The SONET/SDH Far End VT group          -- This group consists of two tables:          --    SONET/SDH Far End VT Current Table          --    SONET/SDH Far End VT Interval Table          -- The SONET/SDH Far End VT Current          -- The SONET/SDH Far End VT Current table          -- contains various statistics          -- being collected for the current 15 minute interval.          -- The statistics are collected from          -- the far end block error code          -- (FEBE) within the G1 byte of the VT Overhead.          -- The definitions are the same as described for          -- the near-end information.          sonetFarEndVTCurrentTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetFarEndVTCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                  "The SONET/SDH Far End VT Current table."              ::= { sonetFarEndVT 1 }          sonetFarEndVTCurrentEntry OBJECT-TYPE              SYNTAX  SonetFarEndVTCurrentEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                  "An entry in the SONET/SDH Far End VT Current table."              INDEX   { ifIndex }              ::= { sonetFarEndVTCurrentTable 1 }          SonetFarEndVTCurrentEntry ::=              SEQUENCE {                  sonetFarEndVTCurrentESs       Gauge32,AToM MIB Working Group                                         [Page 48]

RFC 1595                   SONET/SDH Objects                  March 1994                  sonetFarEndVTCurrentSESs      Gauge32,                  sonetFarEndVTCurrentCVs       Gauge32,                  sonetFarEndVTCurrentUASs      Gauge32              }          sonetFarEndVTCurrentESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                  "The counter associated with the number of Far                  Far End Errored Seconds encountered by a SONET/SDH                  interface in the current 15 minute interval."          ::= { sonetFarEndVTCurrentEntry 1 }          sonetFarEndVTCurrentSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                  "The counter associated with the number of                  Far End Severely Errored Seconds                  encountered by a SONET/SDH VT interface                  in the current 15 minute                  interval."              ::= { sonetFarEndVTCurrentEntry 2 }          sonetFarEndVTCurrentCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                  "The counter associated with the number of                  Far End Coding Violations reported via                  the far end block error count                  encountered by a                  SONET/SDH VT interface                  in the current 15 minute interval."              ::= { sonetFarEndVTCurrentEntry 3 }          sonetFarEndVTCurrentUASs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                "The counter associated with the number of                Far End Unavailable SecondsAToM MIB Working Group                                         [Page 49]

RFC 1595                   SONET/SDH Objects                  March 1994                encountered by a                SONET/SDH VT interface                in the current 15 minute interval."             ::= { sonetFarEndVTCurrentEntry 4 }          -- The SONET/SDH Far End VT Interval Table          -- The SONET/SDH Far End VT Interval Table          -- contains various statistics          -- collected by each system over a maximum          -- of the previous 24 hours of          -- operation.  The past 24 hours may be broken into 96          -- completed 15 minute intervals.          -- A system is required to store at          -- least 4 completed 15 minute interval.          -- The default value is 32 intervals.          sonetFarEndVTIntervalTable OBJECT-TYPE              SYNTAX  SEQUENCE OF SonetFarEndVTIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "The SONET/SDH Far End VT Interval table."              ::= { sonetFarEndVT 2 }          sonetFarEndVTIntervalEntry OBJECT-TYPE              SYNTAX  SonetFarEndVTIntervalEntry              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                "An entry in the SONET/SDH Far                End VT Interval table."              INDEX   { ifIndex,                        sonetFarEndVTIntervalNumber }              ::= { sonetFarEndVTIntervalTable 1 }          SonetFarEndVTIntervalEntry ::=             SEQUENCE {                   sonetFarEndVTIntervalNumber     Integer32,                   sonetFarEndVTIntervalESs        Gauge32,                   sonetFarEndVTIntervalSESs       Gauge32,                   sonetFarEndVTIntervalCVs        Gauge32,                   sonetFarEndVTIntervalUASs       Gauge32              }          sonetFarEndVTIntervalNumber OBJECT-TYPEAToM MIB Working Group                                         [Page 50]

RFC 1595                   SONET/SDH Objects                  March 1994              SYNTAX  Integer32 (1..96)              MAX-ACCESS  not-accessible              STATUS  current              DESCRIPTION                 "A number between 1 and 96, which identifies the                 interval for which the set of statistics is available.                 The interval identified by 1 is the most recently                 completed 15 minute interval,                 and the interval identified                 by N is the interval immediately preceding the                 one identified                 by N-1."              ::= { sonetFarEndVTIntervalEntry 1 }          sonetFarEndVTIntervalESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                    "The counter associated with the number of                    Far End Errored Seconds encountered                    by a SONET/SDH VT interface                    in a particular 15-minute interval                    in the past 24 hours."             ::= { sonetFarEndVTIntervalEntry 2 }          sonetFarEndVTIntervalSESs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                    "The counter associated with the number of                    Far End Severely Errored Seconds                    encountered by a SONET/SDH VT interface                    in a particular 15-minute interval                    in the past 24 hours."              ::= { sonetFarEndVTIntervalEntry 3 }          sonetFarEndVTIntervalCVs OBJECT-TYPE              SYNTAX  Gauge32              MAX-ACCESS  read-only              STATUS  current              DESCRIPTION                   "The counter associated with the number of                   Far End Coding Violations reported via                   the far end block error count                   encountered by a                   SONET/SDH VT interface in aAToM MIB Working Group                                         [Page 51]

RFC 1595                   SONET/SDH Objects                  March 1994                   particular 15-minute interval                   in the past 24 hours."              ::= { sonetFarEndVTIntervalEntry 4 }          sonetFarEndVTIntervalUASs OBJECT-TYPE             SYNTAX  Gauge32             MAX-ACCESS  read-only             STATUS  current             DESCRIPTION                 "The counter associated with the number of                 Far End Unavailable Seconds                 encountered by a                 SONET/SDH VT interface in a                 particular 15-minute interval                 in the past 24 hours."             ::= { sonetFarEndVTIntervalEntry 5 }          -- conformance information          sonetConformance OBJECT IDENTIFIER ::= { sonetMIB 4 }          sonetGroups      OBJECT IDENTIFIER ::= { sonetConformance 1 }          sonetCompliances OBJECT IDENTIFIER ::= { sonetConformance 2 }          -- compliance statements          sonetCompliance MODULE-COMPLIANCE              STATUS  current              DESCRIPTION                      "The compliance statement for SONET/SDH                       interfaces."              MODULE  -- this module                  MANDATORY-GROUPS { sonetMediumStuff, sonetSectionStuff }                  GROUP       sonetLineStuff                  DESCRIPTION                      "Implementation of this group is mandatory for all                       SONET/SDH systems that terminate SONET/SDH Lines,                       Paths or Virtual Tributaries."                  GROUP       sonetFarEndLineStuff                  DESCRIPTION                      "Implementation of this group is optional for all                       SONET/SDH systems that terminate SONET/SDH Lines,                       Paths or Virtual Tributaries, and thatAToM MIB Working Group                                         [Page 52]

RFC 1595                   SONET/SDH Objects                  March 1994                       provide for a far end block error (FEBE)                       information at the SONET/SDH Line Layer."                  GROUP       sonetPathStuff                  DESCRIPTION                      "Implementation of this group is mandatory for all                       SONET/SDH systems that terminate SONET/SDH                       Paths or Virtual                       Tributaries."                  OBJECT      sonetPathWidth                  MIN-ACCESS  read-only                  DESCRIPTION                      "Write access is not required."                  GROUP       sonetFarEndPathStuff                  DESCRIPTION                      "Implementation of this group is optional for all                       SONET/SDH systems that terminate SONET/SDH                       Paths or Virtual                       Tributaries, and that process                       Far End information."                  GROUP       sonetVTStuff                  DESCRIPTION                      "Implementation of this group is mandatory for all                       SONET/SDH systems that terminate SONET/SDH                       Virtual Tributaries."                  OBJECT      sonetVTWidth                  MIN-ACCESS  read-only                  DESCRIPTION                      "Write access is not required."                  GROUP       sonetFarEndVTStuff                  DESCRIPTION                      "Implementation of this group is optional for                       all SONET/SDH systems that terminate the                       SONET/SDH floating Virtual Tributaries, and                       that process Far End information."              ::= { sonetCompliances 1 }          -- units of conformance          sonetMediumStuff    OBJECT-GROUP              OBJECTS { sonetMediumType,                        sonetMediumTimeElapsed,AToM MIB Working Group                                         [Page 53]

RFC 1595                   SONET/SDH Objects                  March 1994                        sonetMediumValidIntervals,                        sonetMediumLineCoding,                        sonetMediumLineType,                        sonetMediumCircuitIdentifier }              STATUS  current              DESCRIPTION                      "A collection of objects providing configuration                      information applicable to all SONET/SDH                      interfaces."              ::= { sonetGroups 1 }          sonetSectionStuff    OBJECT-GROUP              OBJECTS { sonetSectionCurrentStatus,                        sonetSectionCurrentESs,                        sonetSectionCurrentSESs,                        sonetSectionCurrentSEFSs,                        sonetSectionCurrentCVs,                        sonetSectionIntervalESs,                        sonetSectionIntervalSESs,                        sonetSectionIntervalSEFSs,                        sonetSectionIntervalCVs           }              STATUS  current              DESCRIPTION                      "A collection of objects providing information                      specific to SONET/SDH Section interfaces."              ::= { sonetGroups 2 }          sonetLineStuff    OBJECT-GROUP              OBJECTS { sonetLineCurrentStatus,                        sonetLineCurrentESs,                        sonetLineCurrentSESs,                        sonetLineCurrentCVs,                        sonetLineCurrentUASs,                        sonetLineIntervalESs,                        sonetLineIntervalSESs,                        sonetLineIntervalCVs,                        sonetLineIntervalUASs }              STATUS  current              DESCRIPTION                      "A collection of objects providing information                      specific to SONET/SDH Line interfaces."              ::= { sonetGroups 3 }          sonetFarEndLineStuff    OBJECT-GROUP              OBJECTS { sonetFarEndLineCurrentESs,                        sonetFarEndLineCurrentSESs,                        sonetFarEndLineCurrentCVs,AToM MIB Working Group                                         [Page 54]

RFC 1595                   SONET/SDH Objects                  March 1994                        sonetFarEndLineCurrentUASs,                        sonetFarEndLineIntervalESs,                        sonetFarEndLineIntervalSESs,                        sonetFarEndLineIntervalCVs,                        sonetFarEndLineIntervalUASs }              STATUS  current              DESCRIPTION                      "A collection of objects providing information                      specific to SONET/SDH Line interfaces,                      and maintaining Line Far End information."              ::= { sonetGroups 4 }          sonetPathStuff    OBJECT-GROUP              OBJECTS { sonetPathCurrentWidth,                        sonetPathCurrentStatus,                        sonetPathCurrentESs,                        sonetPathCurrentSESs,                        sonetPathCurrentCVs,                        sonetPathCurrentUASs,                        sonetPathIntervalESs,                        sonetPathIntervalSESs,                        sonetPathIntervalCVs,                        sonetPathIntervalUASs }              STATUS  current              DESCRIPTION                      "A collection of objects providing information                      specific to SONET/SDH Path interfaces."              ::= { sonetGroups 5 }          sonetFarEndPathStuff    OBJECT-GROUP              OBJECTS { sonetFarEndPathCurrentESs,                        sonetFarEndPathCurrentSESs,                        sonetFarEndPathCurrentCVs,                        sonetFarEndPathCurrentUASs,                        sonetFarEndPathIntervalESs,                        sonetFarEndPathIntervalSESs,                        sonetFarEndPathIntervalCVs,                        sonetFarEndPathIntervalUASs }              STATUS  current              DESCRIPTION                      "A collection of objects providing information                      specific to SONET/SDH Path interfaces,                      and maintaining Path Far End information."              ::= { sonetGroups 6 }          sonetVTStuff    OBJECT-GROUP              OBJECTS { sonetVTCurrentWidth,                        sonetVTCurrentStatus,AToM MIB Working Group                                         [Page 55]

RFC 1595                   SONET/SDH Objects                  March 1994                        sonetVTCurrentESs,                        sonetVTCurrentSESs,                        sonetVTCurrentCVs,                        sonetVTCurrentUASs,                        sonetVTIntervalESs,                        sonetVTIntervalSESs,                        sonetVTIntervalCVs,                        sonetVTIntervalUASs }              STATUS  current              DESCRIPTION                      "A collection of objects providing information                      specific to SONET/SDH VT interfaces."              ::= { sonetGroups 7 }          sonetFarEndVTStuff    OBJECT-GROUP              OBJECTS { sonetFarEndVTCurrentESs,                        sonetFarEndVTCurrentSESs,                        sonetFarEndVTCurrentCVs,                        sonetFarEndVTCurrentUASs,                        sonetFarEndVTIntervalESs,                        sonetFarEndVTIntervalSESs,                        sonetFarEndVTIntervalCVs,                        sonetFarEndVTIntervalUASs }              STATUS  current              DESCRIPTION                      "A collection of objects providing information                      specific to SONET/SDH VT interfaces,                      and maintaining VT Far End information."              ::= { sonetGroups 8 }          END5.  Acknowledgments   This specification is a product of the AToM MIB Working Group.AToM MIB Working Group                                         [Page 56]

RFC 1595                   SONET/SDH Objects                  March 19946.  References   [1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure       of Management Information for version 2 of the Simple Network       Management Protocol (SNMPv2)",RFC 1442, SNMP Research, Inc.,       Hughes LAN Systems, Dover Beach Consulting, Inc., Carnegie Mellon       University, April 1993.   [2] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual       Conventions for version 2 of the the Simple Network Management       Protocol (SNMPv2)",RFC 1443, SNMP Research, Inc., Hughes LAN       Systems, Dover Beach Consulting, Inc., Carnegie Mellon       University, April 1993.   [3] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,       "Conformance Statements for version 2 of the the Simple Network       Management Protocol (SNMPv2)",RFC 1444, SNMP Research, Inc.,       Hughes LAN Systems, Dover Beach Consulting, Inc., Carnegie Mellon       University, April 1993.   [4] Galvin, J., and K. McCloghrie, "Administrative Model for version       2 of the Simple Network Management Protocol (SNMPv2)",RFC 1445,       Trusted Information Systems, Hughes LAN Systems, April 1993.   [5] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol       Operations for version 2 of the Simple Network Management       Protocol (SNMPv2)",RFC 1448, SNMP Research, Inc., Hughes LAN       Systems, Dover Beach Consulting, Inc., Carnegie Mellon       University, April 1993.   [6] McCloghrie, K., and M. Rose, "Management Information Base for       Network Management of TCP/IP-based internets: MIB-II", STD 17,RFC 1213, Hughes LAN Systems, Inc., Performance Systems       International, March 1991.   [7] Information processing systems - Open Systems Interconnection -       Specification of Abstract Syntax Notation One (ASN.1),       International Organization for Standardization.  International       Standard 8824, (December, 1987).   [8] Information processing systems - Open Systems Interconnection -       Specification of Basic Encoding Rules for Abstract Notation One       (ASN.1), International Organization for Standardization.       International Standard 8825, (December, 1987).   [9] American National Standard for Telecommunications - Digital       Hierarchy - Optical Interface Rates and Formats Specification,       ANSI T1.105-1988.AToM MIB Working Group                                         [Page 57]

RFC 1595                   SONET/SDH Objects                  March 1994  [9a] ANSI T1.105-1991.  [10] American National Standard for Telecommunications - Digital       Hierarchy - Optical Interface Specification (Single-Mode), ANSI       T1.106-1988.  [11] American National Standard for Telecommunications -- Layer 1 In-       Service Digital Transmission Performance Monitoring T1M1.3/93-       005R2, July 1993.  [12] McCloghrie, K.,  and F. Kastenholz, "Evolution of Interfaces       Group of MIB-II",RFC 1573, Hughes LAN Systems, FTP Software,       January 1994.  [13] Cox, T., and K. Tesink, Editors, "Definitions of Managed Objects       for the DS3/E3 Interface Type",RFC 1407, Bellcore, January 1993.  [14] Baker, F.,  and J. Watt, Editors, "Definitions of Managed Objects       for the DS1/E1 Interface Type",RFC 1406, Advanced Computer       Communications, Newbridge Networks Corporation, January 1993.  [15] CCITT Recommendation G.707, "Synchronous Digital Hierarchy Bit       Rates", June 1992.  [16] CCITT Recommendation G.708, "Network Node Interface for the       Synchronous Digital Hierarchy", June 1992.  [17] CCITT Recommendation G.709, "Synchronous Multiplexing Structure",       June 1992.  [18] CCITT Recommendation G.783, "Characteristics of Synchronous       Digital Hierarchy (SDH) Multiplexing Equipment Functional       Blocks", November 1992.AToM MIB Working Group                                         [Page 58]

RFC 1595                   SONET/SDH Objects                  March 19947.  Security Considerations   Security issues are not discussed in this memo.8.  Authors' Addresses   Tracy A. Brown   Bell Communications Research   331 Newman Springs Road   P.O. Box 7020   Red Bank, NJ  07701-7020   Phone: (908) 758-2107   EMail: tacox@mail.bellcore.com   Kaj Tesink   Bell Communications Research   331 Newman Springs Road   P.O. Box 7020   Red Bank, NJ  07701-7020   Phone: (908) 758-5254   EMail: kaj@cc.bellcore.comAToM MIB Working Group                                         [Page 59]

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