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EXPERIMENTAL
Internet Engineering Task Force (IETF)                           R. ColeRequest for Comments: 7367                                US Army CERDECCategory: Experimental                                         J. MackerISSN: 2070-1721                                               B. Adamson                                               Naval Research Laboratory                                                            October 2014Definition of Managed Objects for the Mobile Ad Hoc Network (MANET)Simplified Multicast Framework Relay Set ProcessAbstract   This memo defines a portion of the Management Information Base (MIB)   for use with network management protocols in the Internet community.   In particular, it describes objects for configuring aspects of the   Simplified Multicast Forwarding (SMF) process for Mobile Ad Hoc   Networks (MANETs).  The SMF-MIB module also reports state   information, performance information, and notifications.  In addition   to configuration, the additional state and performance information is   useful to operators troubleshooting multicast forwarding problems.Status of This Memo   This document is not an Internet Standards Track specification; it is   published for examination, experimental implementation, and   evaluation.   This document defines an Experimental Protocol for the Internet   community.  This document is a product of the Internet Engineering   Task Force (IETF).  It represents the consensus of the IETF   community.  It has received public review and has been approved for   publication by the Internet Engineering Steering Group (IESG).  Not   all documents approved by the IESG are a candidate for any level of   Internet Standard; seeSection 2 of RFC 5741.   Information about the current status of this document, any errata,   and how to provide feedback on it may be obtained athttp://www.rfc-editor.org/info/rfc7367.Cole, et al.                  Experimental                      [Page 1]

RFC 7367                       The SMF-MIB                  October 2014Copyright Notice   Copyright (c) 2014 IETF Trust and the persons identified as the   document authors.  All rights reserved.   This document is subject toBCP 78 and the IETF Trust's Legal   Provisions Relating to IETF Documents   (http://trustee.ietf.org/license-info) in effect on the date of   publication of this document.  Please review these documents   carefully, as they describe your rights and restrictions with respect   to this document.  Code Components extracted from this document must   include Simplified BSD License text as described in Section 4.e of   the Trust Legal Provisions and are provided without warranty as   described in the Simplified BSD License.Table of Contents1. Introduction ....................................................32. The Internet-Standard Management Framework ......................33. Conventions .....................................................34. Overview ........................................................34.1. SMF Management Model .......................................44.2. Terms ......................................................55. Structure of the MIB Module .....................................55.1. Textual Conventions ........................................65.2. The Capabilities Group .....................................65.3. The Configuration Group ....................................65.4. The State Group ............................................75.5. The Performance Group ......................................75.6. The Notifications Group ....................................75.7. Tables and Indexing ........................................86. Relationship to Other MIB Modules ...............................96.1. Relationship to the SNMPv2-MIB .............................96.2. Relationship to the IP-MIB .................................96.3. Relationship to the IPMCAST-MIB ............................96.4. MIB Modules Required for IMPORTS ..........................106.5. Relationship to Future RSSA-MIB Modules ...................107. SMF-MIB Definitions ............................................108. IANA-SMF-MIB Definitions .......................................519. Security Considerations ........................................5610. Applicability Statement .......................................5911. IANA Considerations ...........................................6212. References ....................................................6212.1. Normative References .....................................6212.2. Informative References ...................................64   Acknowledgements ..................................................65   Contributors ......................................................65   Authors' Addresses ................................................65Cole, et al.                  Experimental                      [Page 2]

RFC 7367                       The SMF-MIB                  October 20141.  Introduction   This memo defines a portion of the Management Information Base (MIB)   for use with network management protocols in the Internet community.   In particular, it describes objects for configuring aspects of a   process implementing Simplified Multicast Forwarding (SMF) [RFC6621]   for Mobile Ad Hoc Networks (MANETs).  SMF provides multicast   Duplicate Packet Detection (DPD) and supports algorithms for   constructing an estimate of a MANET Minimum Connected Dominating Set   (MCDS) for efficient multicast forwarding.  The SMF-MIB module also   reports state information, performance information, and   notifications.  In addition to configuration, this additional state   and performance information is useful to operators troubleshooting   multicast forwarding problems.2.  The Internet-Standard Management Framework   For a detailed overview of the documents that describe the current   Internet-Standard Management Framework, please refer tosection 7 of   RFC 3410 [RFC3410].   Managed objects are accessed via a virtual information store, termed   the Management Information Base or MIB.  MIB objects are generally   accessed through the Simple Network Management Protocol (SNMP).   Objects in the MIB are defined using the mechanisms defined in the   Structure of Management Information (SMI).  This memo specifies a MIB   module that is compliant to the SMIv2, which is described in STD 58,RFC 2578 [RFC2578], STD 58,RFC 2579 [RFC2579] and STD 58,RFC 2580   [RFC2580].3.  Conventions   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and   "OPTIONAL" in this document are to be interpreted as described inRFC2119 [RFC2119].4.  Overview   SMF provides methods for implementing DPD-based multicast forwarding   with the optional use of CDS-based relay sets.  The CDS provides a   complete connected coverage of the nodes comprising the MANET.  The   MCDS is the smallest set of MANET nodes (comprising a connected   cluster) that cover all the nodes in the cluster with their   transmissions.  As the density of the MANET nodes increase, the   fraction of nodes required in an MCDS decreases.  Using the MCDS as a   multicast forwarding set then becomes an efficient multicast   mechanism for MANETs.Cole, et al.                  Experimental                      [Page 3]

RFC 7367                       The SMF-MIB                  October 2014   Various algorithms for the construction of estimates of the MCDS   exist.  The Simplified Multicast Framework [RFC6621] describes some   of these.  It further defines various operational modes for a node   that is participating in the collective creation of the MCDS   estimates.  These modes depend upon the set of related MANET routing   and discovery protocols and mechanisms in operation in the specific   MANET node.   A SMF router's MIB module contains SMF process configuration   parameters (e.g., specific CDS algorithm), state information (e.g.,   current membership in the CDS), performance counters (e.g., packet   counters), and notifications.4.1.  SMF Management Model   This section describes the management model for the SMF node process.   Figure 1 (reproduced from Figure 1 of [RFC6621]) shows the   relationship between the SMF Relay Set Selection Algorithm and the   related algorithms, processes, and protocols running in the MANET   nodes.  The Relay Set Selection Algorithm (RSSA) can rely upon   topology information acquired from the MANET Neighborhood Discovery   Protocol (NHDP), from the specific MANET routing protocol running on   the node, or from Layer 2 information passed up to the higher layer   protocol processes.       ______________                ____________      |              |              |            |      | Neighborhood |              | Relay Set  |      |  Discovery   |------------->| Selection  |      |              |   neighbor   |            |      |______________|     info     |____________|              \                             /       neighbor\                           / forwarding         info*  \      _____________      /    status                 \    |             |    /                  `-->| Forwarding  |<--'                      |   Process   |    ----------------->|_____________|----------------->     incoming packet,                   forwarded packets     interface id*, and     previous hop*              Figure 1: SMF Router Architecture   The asterisks (*) mark the primitives and relationships needed by   relay set algorithms requiring previous-hop packet-forwarding   knowledge.Cole, et al.                  Experimental                      [Page 4]

RFC 7367                       The SMF-MIB                  October 20144.2.  Terms   The following definitions apply throughout this document:   Configuration Objects:  switches, tables, and objects that are      initialized to default settings or set through the management      interfaces such as defined by this MIB module.   Tunable Configuration Objects:  objects whose values affect timing or      attempt bounds on the SMF Relay Set (RS) process.   State Objects:  automatically generated values that define the      current operating state of the SMF RS process in the router.   Performance Objects:  automatically generated values that help an      administrator or automated tool to assess the performance of the      CDS multicast process on the router and the overall multicast      performance within the MANET routing domain.5.  Structure of the MIB Module   This section presents the structure of the SMF-MIB module.  The   objects are arranged into the following groups:   o  smfMIBNotifications - defines the notifications associated with      the SMF process.   o  smfMIBObjects - defines the objects forming the basis for the SMF-      MIB module.  These objects are divided up by function into the      following groups:      *  Capabilities Group - This group contains the SMF objects that         the device uses to advertise its local capabilities with         respect to, e.g., the supported RSSAs.      *  Configuration Group - This group contains the SMF objects that         configure specific options that determine the overall operation         of the SMF process and the resulting multicast performance.      *  State Group - Contains information describing the current state         of the SMF process such as the Neighbor Table.      *  Performance Group - Contains objects that help to characterize         the performance of the SMF process, typically counters for         statistical computations.   o  smfMIBConformance - defines two, i.e., minimal and full,      conformance implementations for the SMF-MIB module.Cole, et al.                  Experimental                      [Page 5]

RFC 7367                       The SMF-MIB                  October 20145.1.  Textual Conventions   The Textual Conventions defined within the SMF-MIB module:   o  The SmfStatus is defined within the SMF-MIB module.  This contains      the current operational status of the SMF process on an interface.   The Textual Conventions defined for the SMF-MIB module and maintained   by IANA are:   o  The IANAsmfOpModeIdTC represents an index that identifies a      specific SMF operational mode.  This Textual Convention is      maintained by IANA in the IANA-SMF-MIB.   o  The IANAsmfRssaIdTC represents an index that identifies, through      reference, a specific RSSA available for operation on the device.      This Textual Convention is maintained by IANA also in the IANA-      SMF-MIB.5.2.  The Capabilities Group   The SMF device supports a set of capabilities.  The list of   capabilities that the device can advertise is as follows:   o  Operational Mode - topology information from NHDP, CDS-aware      unicast routing, or Cross-layer from Layer 2.   o  SMF RSSA - the specific RSSA operational on the device.  Note that      configuration, state, and performance objects related to a      specific RSSA must be defined within a separate MIB module.5.3.  The Configuration Group   The SMF device is configured with a set of controls.  Some of the   prominent configuration controls for the SMF device are:   o  Operational Mode - determines from where topology information is      derived, e.g., NHDP, CDS-aware unicast routing, or Cross-layer      from Layer 2.   o  SMF RSSA - the specific RSSA operational on the device.   o  Duplicate Packet detection for IPv4 - Identification-based or      Hash-based DPD (I-DPD or H-DPD, respectively).   o  Duplicate Packet detection for IPv6 - Identification-based or      Hash-based DPD.Cole, et al.                  Experimental                      [Page 6]

RFC 7367                       The SMF-MIB                  October 2014   o  SMF Type Message TLV - if NHDP mode is selected, then the SMF Type      Message TLV MAY be included in the NHDP exchanges.   o  SMF Address Block TLV - if NHDP mode is selected, then the SMF      Address Block TLV SHOULD be included in the NHDP exchanges.   o  SMF Address Forwarding Table - a table identifying configured      multicast addresses to be forwarded by the SMF process.5.4.  The State Group   The State sub-tree reports current state information, for example,   o  Node RSSA State - identifies whether the node is currently in or      out of the Relay Set.   o  Neighbors Table - a table containing current one-hop neighbors and      their operational RSSA.5.5.  The Performance Group   The Performance sub-tree primarily reports counters that relate to   SMF RSSA performance.  The SMF performance counters consist of per-   node and per-interface objects:   o  Total multicast packets received.   o  Total multicast packets forwarded.   o  Total duplicate multicast packets detected.   o  Per interface statistics table with the following entries:      *  Multicast packets received.      *  Multicast packets forwarded.      *  Duplicate multicast packets detected.5.6.  The Notifications Group   The Notifications sub-tree contains the list of notifications   supported within the SMF-MIB module and their intended purpose and   utility.Cole, et al.                  Experimental                      [Page 7]

RFC 7367                       The SMF-MIB                  October 20145.7.  Tables and Indexing   The SMF-MIB module contains a number of tables that record data   related to:   o  configuration and operation of packet forwarding on the local      router,   o  configuration and operation of local MANET interfaces on the      router, and   o  configuration and operation of various RSSAs for packet      forwarding.   The SMF-MIB module's tables are indexed via the following constructs:   o  smfCapabilitiesIndex - the index identifying the combination of      SMF mode and SMF RSSA available on this device.   o  smfCfgAddrForwardingIndex - the index to configured multicast      address lists that are forwarded by the SMF process.   o  smfCfgIfIndex - the IfIndex of the interface on the local router      on which SMF is configured.   o  smfStateNeighborIpAddrType, smfStateNeighborIpAddr, and      smfStateNeighborPrefixLen - the interface index set of specific      one-hop neighbor nodes to this local router.   These tables and their associated indexing are defined in the SMF-MIB   module:   o  smfCapabilitiesTable - identifies the resident set of (SMF      Operational Modes, SMF RSSA algorithms) available on this router.      This table has 'INDEX { smfCapabilitiesIndex }'.   o  smfCfgAddrForwardingTable - contains information on multicast      addresses that are to be forwarded by the SMF process on this      device.  This table has 'INDEX { smfCfgAddrForwardingIndex }'.   o  smfCfgInterfaceTable - describes the SMF interfaces on this device      that are participating in the SMF packet forwarding process.  This      table has 'INDEX { smfCfgIfIndex }'.Cole, et al.                  Experimental                      [Page 8]

RFC 7367                       The SMF-MIB                  October 2014   o  smfStateNeighborTable - describes the current neighbor nodes,      their addresses and the SMF RSSA and the interface on which they      can be reached.  This table has 'INDEX {      smfStateNeighborIpAddrType, smfStateNeighborIpAddr,      smfStateNeighborPrefixLen }'.   o  smfPerfIpv4InterfacePerfTable - contains the IPv4-related SMF      statistics per each SMF interface on this device.  This table has      'INDEX { smfCfgIfIndex }'.   o  smfPerfIpv6InterfacePerfTable - contains the IPv6-related SMF      statistics per each SMF interface on this device.  This table has      'INDEX { smfCfgIfIndex }'.6.  Relationship to Other MIB Modules6.1.  Relationship to the SNMPv2-MIB   The 'system' group in the SNMPv2-MIB module [RFC3418] is defined as   being mandatory for all systems, and the objects apply to the entity   as a whole.  The 'system' group provides identification of the   management entity and certain other system-wide data.  The SMF-MIB   module does not duplicate those objects.6.2.  Relationship to the IP-MIB   It is an expectation that SMF devices will implement the standard IP-   MIB module [RFC4293].  Exactly how to integrate SMF packet handling   and management into the standard IP-MIB module management are part of   the experiment.   The SMF-MIB module counters within the smfPerformanceGroup count   packets handled by the system and interface local SMF process (as   discussed above).  Not all IP (unicast and multicast) packets on a   device interface are handled by the SMF process.  So the counters are   tracking different packet streams in the IP-MIB and SMF-MIB modules.6.3.  Relationship to the IPMCAST-MIB   The smfCfgAddrForwardingTable is essentially a filter table (if   populated) that identifies addresses/packets to be forwarded via the   local SMF flooding process.  The IP Multicast MIB module inRFC 5132   [RFC5132] manages objects related to standard IP multicast, which   could be running in parallel to SMF on the device.RFC 5132 manages traditional IP-based multicast (based upon multicast   routing mechanisms).  The SMF-MIB module provides management for a   MANET subnet-based flooding mechanism which, may be used forCole, et al.                  Experimental                      [Page 9]

RFC 7367                       The SMF-MIB                  October 2014   multicast transport (through SMF broadcast) depending upon the MANET   dynamics and other factors regarding the MANET subnet.  Further, they   may coexist in certain MANET deployments using the   smfCfgAddrForwardingTable to hand certain IP multicast addresses to   the SMF process and other IP multicast packets to be forwarded by   other multicast mechanisms that are IP route based.  SMF and the   associated SMF-MIB module are experimental and these are some of the   experiments to be had with SMF and the SMF-MIB module.6.4.  MIB Modules Required for IMPORTS   The objects imported for use in the SMF-MIB module are as follows.   The MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, Counter32,   Integer32, TimeTicks and experimental macros are imported fromRFC2578 [RFC2578].  The TEXTUAL-CONVENTION, RowStatus, and TruthValue   macros are imported fromRFC 2579 [RFC2579].  The MODULE-COMPLIANCE,   OBJECT-GROUP, and NOTIFICATION-GROUP macros are imported fromRFC2580 [RFC2580].  The InterfaceIndexOrZero and ifName textual   conventions are imported fromRFC 2863 [RFC2863].  The   SnmpAdminString textual convention is imported fromRFC 3411   [RFC3411].  The InetAddress, InetAddressType, and   InetAddressPrefixLength textual conventions are imported fromRFC4001 [RFC4001].6.5.  Relationship to Future RSSA-MIB Modules   In a sense, the SMF-MIB module is a general front-end to a set of   yet-to-be developed RSSA-specific MIB modules.  These RSSA-specific   MIB modules will define the objects for the configuration, state,   performance and notification required for the operation of these   specific RSSAs.  The SMF-MIB module Capabilities Group allows the   remote management station the ability to query the router to discover   the set of supported RSSAs.7.  SMF-MIB Definitions   SMF-MIB DEFINITIONS ::= BEGIN   IMPORTS      MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,      Counter32, Integer32, TimeTicks, experimental         FROM SNMPv2-SMI                          --RFC 2578      TEXTUAL-CONVENTION, RowStatus, TruthValue         FROM SNMPv2-TC                           --RFC 2579Cole, et al.                  Experimental                     [Page 10]

RFC 7367                       The SMF-MIB                  October 2014      MODULE-COMPLIANCE, OBJECT-GROUP,      NOTIFICATION-GROUP         FROM SNMPv2-CONF                         --RFC 2580      InterfaceIndexOrZero, ifName         FROM IF-MIB                              --RFC 2863      SnmpAdminString         FROM SNMP-FRAMEWORK-MIB                  --RFC 3411      InetAddress, InetAddressType,      InetAddressPrefixLength         FROM INET-ADDRESS-MIB                    --RFC 4001      IANAsmfOpModeIdTC,      IANAsmfRssaIdTC               FROM IANA-SMF-MIB      ;   smfMIB MODULE-IDENTITY      LAST-UPDATED "201410100000Z"  -- October 10, 2014      ORGANIZATION "IETF MANET Working Group"      CONTACT-INFO         "WG EMail:  manet@ietf.org          WG Chairs: sratliff@cisco.com                     jmacker@nrl.navy.mil          Editors:   Robert G. Cole                     US Army CERDEC                     6010 Frankford Road                     Aberdeen Proving Ground, MD 21005                     USA                     Phone: +1 443 395-8744                     EMail: robert.g.cole@us.army.mil                     Joseph Macker                     Naval Research Laboratory                     Washington, D.C. 20375                     USA                     EMail: macker@itd.nrl.navy.mil                     Brian Adamson                     Naval Research Laboratory                     Washington, D.C. 20375                     USA                     EMail: adamson@itd.nrl.navy.mil"Cole, et al.                  Experimental                     [Page 11]

RFC 7367                       The SMF-MIB                  October 2014      DESCRIPTION         "This MIB module contains managed object definitions for          the MANET SMF RSSA process defined in:          Macker, J., Ed., Simplified Multicast Forwarding,RFC 6621,          May 2012.          Copyright (c) 2014 IETF Trust and the persons identified as          authors of the code.  All rights reserved.          Redistribution and use in source and binary forms, with or          without modification, is permitted pursuant to, and subject          to the license terms contained in, the Simplified BSD License          set forth inSection 4.c of the IETF Trust's Legal Provisions          Relating to IETF Documents          (http://trustee.ietf.org/license-info)."        -- Revision History        REVISION    "201410100000Z"   -- October 10, 2014        DESCRIPTION           "The first version of this MIB module,            published asRFC 7367.           "        ::= { experimental 126 }   --   -- TEXTUAL CONVENTIONs   --   SmfStatus ::= TEXTUAL-CONVENTION       STATUS       current       DESCRIPTION          "An indication of the operability of an SMF          function or feature.  For example, the status          of an interface: 'enabled' indicates that          this interface is performing SMF functions          and 'disabled' indicates that it is not.          Similarly, for the status of the device:          'enabled' indicates that the device has          enabled the SMF functions on the device and          'disabled' means that the device and all interfaces          have disabled all SMF functions."       SYNTAX  INTEGER {                        enabled (1),                        disabled (2)               }   --   -- Top-Level Object Identifier AssignmentsCole, et al.                  Experimental                     [Page 12]

RFC 7367                       The SMF-MIB                  October 2014   --   smfMIBNotifications OBJECT IDENTIFIER ::= { smfMIB 0 }   smfMIBObjects       OBJECT IDENTIFIER ::= { smfMIB 1 }   smfMIBConformance   OBJECT IDENTIFIER ::= { smfMIB 2 }   --   -- smfMIBObjects Assignments:   --      smfCapabilitiesGroup  - 1   --      smfConfigurationGroup - 2   --      smfStateGroup         - 3   --      smfPerformanceGroup   - 4   --   --   -- smfCapabilitiesGroup   --   --    This group contains the SMF objects that identify specific   --    capabilities within this device related to SMF functions.   --   smfCapabilitiesGroup  OBJECT IDENTIFIER ::= { smfMIBObjects 1 }   --   -- SMF Capabilities Table   --   smfCapabilitiesTable OBJECT-TYPE       SYNTAX      SEQUENCE OF SmfCapabilitiesEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "The smfCapabilitiesTable identifies the            resident set of SMF Operational Modes and            RSSA combinations that can run on this            forwarder."       REFERENCE          "SeeSection 7.2 'Reduced Relay Set Forwarding',Section 8.1.1 'SMF Message TLV Type', and           the Appendices A, B, and C inRFC 6621 - 'Simplified Multicast Forwarding',           Macker, J., May 2012."       ::= { smfCapabilitiesGroup 1 }   smfCapabilitiesEntry OBJECT-TYPE       SYNTAX      SmfCapabilitiesEntry       MAX-ACCESS  not-accessible       STATUS      currentCole, et al.                  Experimental                     [Page 13]

RFC 7367                       The SMF-MIB                  October 2014       DESCRIPTION           "Information about a particular operational            mode and RSSA combination.           "       INDEX   { smfCapabilitiesIndex }       ::= { smfCapabilitiesTable 1 }   SmfCapabilitiesEntry ::= SEQUENCE {         smfCapabilitiesIndex                 Integer32,         smfCapabilitiesOpModeID              IANAsmfOpModeIdTC,         smfCapabilitiesRssaID                IANAsmfRssaIdTC   }   smfCapabilitiesIndex     OBJECT-TYPE       SYNTAX      Integer32 (1..2147483647)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "The index for this entry; a unique value,            greater than zero, for each combination of            a particular operational mode and RSSA            available on this device.            It is recommended that values are assigned            contiguously starting from 1.            Rows in this table are automatically            populated by the entity's management system            on initialization.            By default, the agent should support at least the            Classical Flooding 'cF' algorithm.  All compliant            SMF forwarders must support Classical Flooding.            Hence, the first entry in this table MUST exist            and MUST be defined as:               smfCapabilitiesIndex i '1'               smfCapabilitiesOpModeID i 'cfOnly(1)'               smfCapabilitiesRssaID i 'cF(1)'            The value for each combination MUST remain            constant at least from one re-initialization            of the entity's management system to the            next re-initialization."       ::= { smfCapabilitiesEntry 1 }   smfCapabilitiesOpModeID     OBJECT-TYPE       SYNTAX      IANAsmfOpModeIdTC       MAX-ACCESS  read-onlyCole, et al.                  Experimental                     [Page 14]

RFC 7367                       The SMF-MIB                  October 2014       STATUS      current       DESCRIPTION           "This object identifies            the particular operational mode for this device."       ::= { smfCapabilitiesEntry 2 }   smfCapabilitiesRssaID     OBJECT-TYPE       SYNTAX      IANAsmfRssaIdTC       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "This object identifies            the particular RSSA algorithm in this MIB            module.  Example RSSAs are found in the            appendix ofRFC 6621."       REFERENCE          "For example, seeSection 8.1.1 'SMF Message TLV Type',           and the Appendices A, B, and C inRFC 6621 - 'Simplified Multicast Forwarding',           Macker, J., May 2012."       ::= { smfCapabilitiesEntry 3 }   --   -- smfConfigurationGroup   --   --    This group contains the SMF objects that configure specific   --    options that determine the overall performance and operation   --    of the multicast forwarding process for the router device   --    and its interfaces.   --   smfConfigurationGroup  OBJECT IDENTIFIER ::= { smfMIBObjects 2 }   smfCfgAdminStatus  OBJECT-TYPE      SYNTAX      SmfStatus      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The configured status of the SMF process          on this device.  'enabled(1)' means that          SMF is configured to run on this device.          'disabled(2)' means that the SMF process          is configured off.          Prior to SMF functions being performed over          specific interfaces, this object must first          be 'enabled'.  If this object is 'disabled',          then no SMF functions are being performed onCole, et al.                  Experimental                     [Page 15]

RFC 7367                       The SMF-MIB                  October 2014          the device and all smfCfgIfAdminStatus objects          MUST also be set to 'disabled'.  When this          object is changed from 'enabled' to 'disabled'          by the manager, then all smfCfgIfAdminStatus          objects MUST also be automatically set to          'disabled' by the agent.          The default value for this object SHOULD be          'enabled'.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      DEFVAL { enabled }   ::= { smfConfigurationGroup 1 }   smfCfgSmfSysUpTime OBJECT-TYPE      SYNTAX  TimeTicks      MAX-ACCESS  read-only      STATUS  current      DESCRIPTION         "The time (in hundredths of a second) since the          system SMF process was last re-initialized.          The SMF process is re-initialized when the          value of the 'smfCfgAdminStatus' object          transitions to 'enabled' from either a prior          value of 'disabled' or upon initialization          of this device."   ::= { smfConfigurationGroup 2 }   smfCfgRouterIDAddrType  OBJECT-TYPE      SYNTAX      InetAddressType { ipv4(1), ipv6(2) }      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The address type of the address used for          the SMF ID of this router as specified          in the 'smfCfgRouterID' next.          Only the values ipv4(1) and ipv6(2)          are supported.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      DEFVAL { ipv4 }   ::= { smfConfigurationGroup 3 }Cole, et al.                  Experimental                     [Page 16]

RFC 7367                       The SMF-MIB                  October 2014   smfCfgRouterID  OBJECT-TYPE      SYNTAX      InetAddress (SIZE(4|16))      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The IP address used as the SMF router ID.          This can be set by the management station.          If not explicitly set, then the device          SHOULD select a routable IP address          assigned to this router for use as          the 'smfCfgRouterID'.          The smfCfgRouterID is a logical identification          that MUST be consistent across interoperable          SMF neighborhoods, and it is RECOMMENDED to be          chosen as the numerically largest address          contained in a node's 'Neighbor Address List'          as defined in NHDP.  An smfCfgRouterID MUST be          unique within the scope of the operating          MANET network regardless of the method used          for selecting it.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "For example, seeAppendix A.1 'E-CDS Relay Set Selection Overview'          andAppendix C.1 'MPR-CDS Relay Set Selection          Overview' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."    ::= { smfConfigurationGroup 4 }   smfCfgOperationalMode  OBJECT-TYPE      SYNTAX      Integer32 (1..2147483647)      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The SMF RSS node operational mode and          RSSA combination active on this          local forwarder.  This object is defined          to be equal to the smfCapabilitiesIndex,Cole, et al.                  Experimental                     [Page 17]

RFC 7367                       The SMF-MIB                  October 2014          which identifies the specific active          operational mode and RSSA.          The default value for this object is          '1', which corresponds to:             smfCapabilitiesOpModeID i 'cfOnly(1)'             smfCapabilitiesRssaID i 'cF(1)'          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE          "SeeSection 7.2 'Reduced Relay Set Forwarding',           and the Appendices A, B, and C inRFC 6621 - 'Simplified Multicast Forwarding',           Macker, J., Ed., May 2012."      DEFVAL { 1 }   ::= { smfConfigurationGroup 5 }   smfCfgRssaMember  OBJECT-TYPE      SYNTAX      INTEGER {                          potential(1),                          always(2),                          never(3)                          }      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The RSSA downselects a set of forwarders for          multicast forwarding.  Sometimes it is useful          to force an agent to be included or excluded          from the resulting RSS.  This object is a          switch to allow for this behavior.          The value 'potential(1)' allows the selected          RSSA to determine if this agent is included          or excluded from the RSS.          The value 'always(2)' forces the selected          RSSA to include this agent in the RSS.          The value 'never(3)' forces the selected          RSSA to exclude this agent from the RSS.          The default setting for this object is          'potential(1)'.  Other settings could pose          operational risks under certain conditions.Cole, et al.                  Experimental                     [Page 18]

RFC 7367                       The SMF-MIB                  October 2014          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "SeeSection 7 'Relay Set Selection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."      DEFVAL { potential }   ::= { smfConfigurationGroup 6 }   smfCfgIpv4Dpd  OBJECT-TYPE      SYNTAX      INTEGER {                          hashBased(1),                          identificationBased(2)                          }      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The current method for IPv4 duplicate packet          detection.          The value 'hashBased(1)' indicates that the          router's duplicate packet detection is based          upon comparing a hash over the packet fields.          This is the default setting for this object.          The value 'identificationBased(2)'          indicates that the duplicate packet          detection relies upon header information          in the multicast packets to identify          previously received packets.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "SeeSection 6.2 'IPv4 Duplicate Packet          Detection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."      DEFVAL { hashBased }   ::= { smfConfigurationGroup 7 }   smfCfgIpv6Dpd  OBJECT-TYPE      SYNTAX      INTEGER {                          hashBased(1),                          identificationBased(2)                          }Cole, et al.                  Experimental                     [Page 19]

RFC 7367                       The SMF-MIB                  October 2014      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The current method for IPv6 duplicate packet          detection.          The values indicate the type of method used          for duplicate packet detection as described          the previous description for the object          'smfCfgIpv4Dpd'.          The default value for this object is          'hashBased(1)'.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "SeeSection 6.1 'IPv6 Duplicate Packet          Detection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."      DEFVAL { hashBased }   ::= { smfConfigurationGroup 8 }   smfCfgMaxPktLifetime  OBJECT-TYPE      SYNTAX      Integer32 (0..65535)      UNITS       "Seconds"      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The estimate of the network packet          traversal time.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "SeeSection 6 'SMF Duplicate Packet          Detection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."      DEFVAL { 60 }   ::= { smfConfigurationGroup 9 }   smfCfgDpdEntryMaxLifetime  OBJECT-TYPE      SYNTAX      Integer32 (0..65525)      UNITS       "Seconds"Cole, et al.                  Experimental                     [Page 20]

RFC 7367                       The SMF-MIB                  October 2014      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "The maximum lifetime of a cached DPD          record in the local device storage.          If the memory is running low prior to the          MaxLifetime being exceeded, the local SMF          devices should purge the oldest records first.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "SeeSection 6 'SMF Duplicate Packet          Detection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."      DEFVAL { 600 }   ::= { smfConfigurationGroup 10 }   --   -- Configuration of messages to be included in   -- NHDP message exchanges in support of SMF   -- operations.   --   smfCfgNhdpRssaMesgTLVIncluded  OBJECT-TYPE      SYNTAX      TruthValue      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "Indicates whether or not the associated NHDP          messages include the RSSA Message TLV.  This          is an optional SMF operational setting.          The value 'true(1)' indicates that this TLV is          included; the value 'false(2)' indicates that it          is not included.          It is RECOMMENDED that the RSSA Message TLV          be included in the NHDP messages.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "SeeSection 8.1.1 'SMF Message TLV Type' inRFC 6621 - 'Simplified Multicast Forwarding',Cole, et al.                  Experimental                     [Page 21]

RFC 7367                       The SMF-MIB                  October 2014          Macker, J., Ed., May 2012."      DEFVAL { true }   ::= { smfConfigurationGroup 11 }   smfCfgNhdpRssaAddrBlockTLVIncluded  OBJECT-TYPE      SYNTAX      TruthValue      MAX-ACCESS  read-write      STATUS      current      DESCRIPTION         "Indicates whether or not the associated NHDP          messages include the RSSA Address Block TLV.          This is an optional SMF operational setting.          The value 'true(1)' indicates that this TLV is          included; the value 'false(2)' indicates that it          is not included.          The smfCfgNhdpRssaAddrBlockTLVIncluded is optional          in all cases as it depends on the existence of          an address block that may not be present.          If this SMF device is configured with NHDP,          then this object SHOULD be set to 'true(1)'.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."      REFERENCE         "SeeSection 8.1.2 'SMF Address Block TLV          Type' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."      DEFVAL { true }   ::= { smfConfigurationGroup 12 }   --   -- Table identifying configured multicast addresses to be forwarded.   --   smfCfgAddrForwardingTable  OBJECT-TYPE      SYNTAX     SEQUENCE OF SmfCfgAddrForwardingEntry      MAX-ACCESS not-accessible      STATUS     current      DESCRIPTION         "The smfCfgAddrForwardingTable is essentially a filter          table (if populated) that identifies addresses/packets          to be forwarded via the local SMF flooding process.          The IP Multicast MIB module inRFC 5132 manages objects          related to standard IP multicast, which could be running          in parallel to SMF on the device.Cole, et al.                  Experimental                     [Page 22]

RFC 7367                       The SMF-MIB                  October 2014RFC 5132 manages traditional IP-based multicast (based          upon multicast routing mechanisms).  The SMF-MIB module          provides management for a MANET subnet-based flooding          mechanism that may be used for multicast transport          (through SMF broadcast) depending upon the MANET dynamics          and other factors regarding the MANET subnet.  Further,          they may coexist in certain MANET deployments          using the smfCfgAddrForwardingTable to hand certain IP          multicast addresses to the SMF process and other IP          multicast packets to be forwarded by other          multicast mechanisms that are IP route based.  SMF and          the associated SMF-MIB module are experimental and these          are some of the experiments to be had with SMF and          the SMF-MIB module.          This is the (conceptual) table containing information on          multicast addresses that are to be forwarded by the SMF          process.  This table represents an IP filters table for          forwarding (or not) packets based upon their IP          multicast address.          The SMF process can be configured to forward only those          multicast addresses found within the          smfCfgAddrForwardingTable.  As such, addresses that are          to be forwarded by the SMF process MUST be found within          the address ranges configured within this table, unless          this table is empty.          Each row is associated with a range of multicast          addresses, and ranges for different rows must be disjoint.          Different rows MAY share a common          smfCfgAddrForwardingGroupName to administratively          associate different rows.          The objects in this table are persistent and, when written,          the entity SHOULD save the change to non-volatile storage."      REFERENCE         "SeeSection 9.1 'Forwarded Multicast Groups' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfConfigurationGroup 13 }   smfCfgAddrForwardingEntry OBJECT-TYPE      SYNTAX     SmfCfgAddrForwardingEntry      MAX-ACCESS not-accessible      STATUS     current      DESCRIPTION         "An entry (conceptual row) containing the information on aCole, et al.                  Experimental                     [Page 23]

RFC 7367                       The SMF-MIB                  October 2014          particular multicast scope."      INDEX { smfCfgAddrForwardingIndex }      ::= { smfCfgAddrForwardingTable 1 }   SmfCfgAddrForwardingEntry ::= SEQUENCE {      smfCfgAddrForwardingIndex         Integer32,      smfCfgAddrForwardingGroupName     SnmpAdminString,      smfCfgAddrForwardingAddrType      InetAddressType,      smfCfgAddrForwardingAddress       InetAddress,      smfCfgAddrForwardingAddrPrefixLength                                        InetAddressPrefixLength,      smfCfgAddrForwardingStatus        RowStatus   }   smfCfgAddrForwardingIndex     OBJECT-TYPE      SYNTAX      Integer32 (1..2147483647)      MAX-ACCESS  not-accessible      STATUS      current      DESCRIPTION         "This object identifies a unique entry          for a forwarding group.  The index for          this entry is a unique value,          greater than zero, for each row.          It is recommended that values are assigned          contiguously starting from 1.          The value for each row index MUST remain          constant from one re-initialization          of the entity's management system to the          next re-initialization."   ::= { smfCfgAddrForwardingEntry 1 }   smfCfgAddrForwardingGroupName  OBJECT-TYPE      SYNTAX      SnmpAdminString      MAX-ACCESS  read-create      STATUS      current      DESCRIPTION         "This object identifies a group name for a set of          row entries in order to administratively associate          a set of address ranges.          If there is no group name or this object is          otherwise not applicable, then this object contains          a zero-length string.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."Cole, et al.                  Experimental                     [Page 24]

RFC 7367                       The SMF-MIB                  October 2014   ::= { smfCfgAddrForwardingEntry 2 }   smfCfgAddrForwardingAddrType OBJECT-TYPE      SYNTAX     InetAddressType { ipv4(1), ipv6(2) }      MAX-ACCESS read-create      STATUS     current      DESCRIPTION         "The type of the addresses in the multicast          forwarding ranges identified by this table.          Only the values ipv4(1) and ipv6(2) are          supported.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."   ::= { smfCfgAddrForwardingEntry 3 }   smfCfgAddrForwardingAddress OBJECT-TYPE      SYNTAX     InetAddress (SIZE(4|16))      MAX-ACCESS read-create      STATUS     current      DESCRIPTION         "The multicast group address that, when          combined with smfCfgAddrForwardingAddrPrefixLength,          gives the group prefix for this forwarding range.          The InetAddressType is given by          smfCfgAddrForwardingAddrType.          This address object is only significant up to          smfCfgAddrForwardingAddrPrefixLength bits.  The          remaining address bits are set to zero.  This is          especially important for this index field.          Any non-zero bits would signify an entirely          different entry.          Legal values correspond to the subset of address          families for which multicast address allocation          is supported.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."   ::= { smfCfgAddrForwardingEntry 4 }   smfCfgAddrForwardingAddrPrefixLength OBJECT-TYPE      SYNTAX     InetAddressPrefixLength      MAX-ACCESS read-createCole, et al.                  Experimental                     [Page 25]

RFC 7367                       The SMF-MIB                  October 2014      STATUS     current      DESCRIPTION         "The length in bits of the mask that, when          combined with smfCfgAddrForwardingAddress,          gives the group prefix for this forwarding          range.          This object is persistent and, when written,          the entity SHOULD save the change to          non-volatile storage."   ::= { smfCfgAddrForwardingEntry 5 }   smfCfgAddrForwardingStatus OBJECT-TYPE      SYNTAX     RowStatus      MAX-ACCESS read-create      STATUS     current      DESCRIPTION         "The status of this row, by which new entries may be          created, or old entries deleted from this table."   ::= { smfCfgAddrForwardingEntry 6 }   --   -- SMF Interfaces Configuration Table   --   smfCfgInterfaceTable  OBJECT-TYPE      SYNTAX      SEQUENCE OF SmfCfgInterfaceEntry      MAX-ACCESS  not-accessible      STATUS      current      DESCRIPTION         "The SMF Interface Table describes the SMF          interfaces that are participating in the          SMF packet forwarding process.  The ifIndex is          from the interfaces group defined in the          Interfaces Group MIB module (RFC 2863).  As such,          this table 'sparse augments' the ifTable          specifically when SMF is to be configured to          operate over this interface.          A conceptual row in this table exists if and only          if either a manager has explicitly created the row          or there is an interface on the managed device          that automatically supports and runs SMF as part          of the device's initialization process.          The manager creates a row in this table by setting          the rowStatus to 'createAndGo' or 'createAndWait'.          Row objects having associated DEFVAL clauses areCole, et al.                  Experimental                     [Page 26]

RFC 7367                       The SMF-MIB                  October 2014          automatically defined by the agent with these          values during row creation, unless the manager          explicitly defines these object values during the          row creation.          As the smfCfgInterfaceTable sparsely augments the          IfTable.  Hence,             + an entry cannot exist in smfCfgInterfaceTable               without a corresponding entry in the ifTable.             + if an entry in the ifTable is removed, the               corresponding entry (if it exists) in the               smfCfgInterfaceTable MUST be removed.             + the smfCfgIfStatus can have a value of               'enabled' or 'disabled' independent of the               current value of the ifAdminStatus of the               corresponding entry in the ifTable.          The values of the objects smfCfgAdminStatus and          smfCfgIfAdminStatus reflect the up-down status of          the SMF process running on the device and on the          specific interfaces, respectively.  Hence,             + the value of the smfCfgAdminStatus can be               'enabled' or 'disabled' reflecting the current               running status of the SMF process on the device.             + the value of the smfCfgIfAdminStatus can be               'enabled' or 'disabled' if the value of the               smfCfgAdminStatus is set to 'enabled'.             + if the value of the smfCfgAdminStatus is               'disabled', then the corresponding               smfCfgIfAdminStatus objects MUST be set               to 'disabled' in the smfCfgInterfaceTable.             + once the value of the smfCfgAdminStatus changes               from 'disabled' to 'enabled', it is up to the               management system to make the corresponding               changes to the smfCfgIfAdminStatus values               back to 'enabled'.          "      REFERENCE         "RFC 2863 - 'The Interfaces Group MIB', McCloghrie,          K., and F. Kastenholtz, June 2000."   ::= { smfConfigurationGroup 14 }Cole, et al.                  Experimental                     [Page 27]

RFC 7367                       The SMF-MIB                  October 2014   smfCfgInterfaceEntry OBJECT-TYPE      SYNTAX      SmfCfgInterfaceEntry      MAX-ACCESS  not-accessible      STATUS      current      DESCRIPTION         "The SMF interface entry describes one SMF          interface as indexed by its ifIndex.          The objects in this table are persistent and, when          written, the device SHOULD save the change to          non-volatile storage.  For further information          on the storage behavior for these objects, refer          to the description for the smfCfgIfRowStatus          object."      INDEX { smfCfgIfIndex }   ::= { smfCfgInterfaceTable 1 }   SmfCfgInterfaceEntry ::=      SEQUENCE {         smfCfgIfIndex        InterfaceIndexOrZero,         smfCfgIfAdminStatus  SmfStatus,         smfCfgIfSmfUpTime    TimeTicks,         smfCfgIfRowStatus    RowStatus         }   smfCfgIfIndex  OBJECT-TYPE      SYNTAX      InterfaceIndexOrZero      MAX-ACCESS  not-accessible      STATUS      current      DESCRIPTION         "The ifIndex for this SMF interface.  This value          MUST correspond to an ifIndex referring          to a valid entry in the Interfaces Table.          If the manager attempts to create a row          for which the ifIndex does not exist on the          local device, then the agent SHOULD issue          a return value of 'inconsistentValue' and          the operation SHOULD fail."      REFERENCE         "RFC 2863 - 'The Interfaces Group MIB', McCloghrie,          K., and F. Kastenholtz, June 2000."      ::= { smfCfgInterfaceEntry 1 }   smfCfgIfAdminStatus OBJECT-TYPE      SYNTAX      SmfStatus      MAX-ACCESS  read-create      STATUS      current      DESCRIPTIONCole, et al.                  Experimental                     [Page 28]

RFC 7367                       The SMF-MIB                  October 2014         "The SMF interface's administrative status.         The value 'enabled' denotes that the interface         is running the SMF forwarding process.         The value 'disabled' denotes that the interface is         currently external to the SMF forwarding process.         When the value of the smfCfgAdminStatus is         'disabled', then the corresponding smfCfgIfAdminStatus         objects MUST be set to 'disabled' in the         smfCfgInterfaceTable.         If this object is not equal to 'enabled', all associated         entries in the 'smfPerfIpv4InterfacePerfTable' and the         'smfPerfIpv6InterfacePerfTable' MUST be deleted.     The default value for this object is 'enabled(1)'.         This object SHOULD be persistent and when         written the device SHOULD save the change to         non-volatile storage."      DEFVAL { enabled }      ::= { smfCfgInterfaceEntry 2 }   smfCfgIfSmfUpTime OBJECT-TYPE      SYNTAX  TimeTicks      MAX-ACCESS  read-only      STATUS  current      DESCRIPTION         "The time (in hundredths of a second) since         this interface SMF process was last         re-initialized.  The interface SMF process is         re-initialized when the value of the         'smfCfgIfAdminStatus' object transitions to 'enabled'         from either a prior value of 'disabled' or upon         initialization of this interface or this device."      ::= { smfCfgInterfaceEntry 3 }   smfCfgIfRowStatus  OBJECT-TYPE      SYNTAX      RowStatus      MAX-ACCESS  read-create      STATUS      current      DESCRIPTION         "This object permits management of this table          by facilitating actions such as row creation,          construction, and destruction.  The value of          this object has no effect on whether other          objects in this conceptual row can be          modified.Cole, et al.                  Experimental                     [Page 29]

RFC 7367                       The SMF-MIB                  October 2014          An entry may not exist in the 'active' state unless all          objects in the entry have a defined appropriate value.  For          objects with DEFVAL clauses, the management station          does not need to specify the value of these objects in order          for the row to transit to the 'active' state; the default          value for these objects is used.  For objects that do not          have DEFVAL clauses, the network manager MUST          specify the value of these objects prior to this row          transitioning to the 'active' state.          When this object transitions to 'active', all objects          in this row SHOULD be written to non-volatile (stable)          storage.  Read-create objects in this row MAY be modified.          When an object in a row with smfCfgIfRowStatus of 'active'          is changed, then the updated value MUST be reflected in SMF          and this new object value MUST be written to non-volatile          storage."      ::= { smfCfgInterfaceEntry 4 }   --   -- smfStateGroup   --   --    Contains information describing the current state of the SMF   --    process such as the current inclusion in the RS or not.   --   smfStateGroup  OBJECT IDENTIFIER ::= { smfMIBObjects 3 }   smfStateNodeRsStatusIncluded  OBJECT-TYPE      SYNTAX      TruthValue      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "The current status of the SMF node in the context of          the MANETs relay set.  A value of 'true(1)' indicates          that the node is currently part of the MANET Relay          Set.  A value of 'false(2)' indicates that the node          is currently not part of the MANET Relay Set."      REFERENCE         "SeeSection 7 'Relay Set Selection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfStateGroup 1 }   smfStateDpdMemoryOverflow  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "DPD Records"      MAX-ACCESS  read-onlyCole, et al.                  Experimental                     [Page 30]

RFC 7367                       The SMF-MIB                  October 2014      STATUS      current      DESCRIPTION         "The number of DPD records that had to be flushed to          prevent memory overruns for caching of these records.          The number of records to be flushed upon a buffer          overflow is an implementation specific decision.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 6 'SMF Duplicate Packet          Detection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfStateGroup 2 }   --   -- SMF Neighbor Table   --   smfStateNeighborTable  OBJECT-TYPE      SYNTAX       SEQUENCE OF SmfStateNeighborEntry      MAX-ACCESS   not-accessible      STATUS       current      DESCRIPTION         "The SMF StateNeighborTable describes the          current one-hop neighbor nodes, their address          and SMF RSSA, and the interface on which          they can be reached."      REFERENCE         "SeeSection 8 'SMF Neighborhood Discovery' andSection 8.1. 'SMF Relay Algorithm TLV          Types' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfStateGroup 3 }   smfStateNeighborEntry  OBJECT-TYPE      SYNTAX       SmfStateNeighborEntry      MAX-ACCESS   not-accessible      STATUS       current      DESCRIPTION         "The SMF Neighbor Table contains the          set of one-hop neighbors, the interfaceCole, et al.                  Experimental                     [Page 31]

RFC 7367                       The SMF-MIB                  October 2014          they are reachable on, and the SMF RSSA          they are currently running."      INDEX { smfStateNeighborIpAddrType,              smfStateNeighborIpAddr,              smfStateNeighborPrefixLen }   ::= { smfStateNeighborTable 1 }   SmfStateNeighborEntry ::=      SEQUENCE {         smfStateNeighborIpAddrType        InetAddressType,         smfStateNeighborIpAddr            InetAddress,         smfStateNeighborPrefixLen         InetAddressPrefixLength,         smfStateNeighborRSSA              IANAsmfRssaIdTC,         smfStateNeighborNextHopInterface  InterfaceIndexOrZero         }   smfStateNeighborIpAddrType  OBJECT-TYPE      SYNTAX      InetAddressType { ipv4(1), ipv6(2) }      MAX-ACCESS  not-accessible      STATUS      current      DESCRIPTION         "The one-hop neighbor IP address type.          Only the values 'ipv4(1)' and          'ipv6(2)' are supported."   ::= { smfStateNeighborEntry 1 }   smfStateNeighborIpAddr  OBJECT-TYPE      SYNTAX      InetAddress (SIZE(4|16))      MAX-ACCESS  not-accessible      STATUS      current      DESCRIPTION         "The one-hop neighbor Inet IPv4 or IPv6         address.         Only IPv4 and IPv6 addresses         are supported."   ::= { smfStateNeighborEntry 2 }   smfStateNeighborPrefixLen  OBJECT-TYPE      SYNTAX      InetAddressPrefixLength      UNITS       "bits"      MAX-ACCESS  not-accessible      STATUS      current      DESCRIPTION         "The prefix length.  This is a decimal value that          indicates the number of contiguous, higher-order          bits of the address that make up the networkCole, et al.                  Experimental                     [Page 32]

RFC 7367                       The SMF-MIB                  October 2014          portion of the address."   ::= { smfStateNeighborEntry 3 }   smfStateNeighborRSSA  OBJECT-TYPE      SYNTAX       IANAsmfRssaIdTC      MAX-ACCESS   read-only      STATUS       current      DESCRIPTION         "The current RSSA running on the neighbor."   ::= { smfStateNeighborEntry 4 }   smfStateNeighborNextHopInterface OBJECT-TYPE      SYNTAX       InterfaceIndexOrZero      MAX-ACCESS   read-only      STATUS       current      DESCRIPTION         "The interface ifIndex over which the          neighbor is reachable in one-hop."   ::= { smfStateNeighborEntry 6 }   --   -- SMF Performance Group   --   --    Contains objects that help to characterize the   --    performance of the SMF RSSA process, such as statistics   --    counters.  There are two types of SMF RSSA statistics:   --    global counters and per-interface counters.   --   --    It is an expectation that SMF devices will   --    implement the standard IP-MIB module inRFC 4293.   --    Exactly how to integrate SMF packet handling and   --    management into the standard IP-MIB module management   --    is part of the experiment.   --   --    The SMF-MIB module counters within the   --    smfPerformanceGroup count packets handled by the   --    system and interface local SMF process (as discussed   --    above).  Not all IP (unicast and multicast) packets   --    on a device interface are handled by the SMF process.   --    So the counters are tracking different packet streams   --    in the IP-MIB and SMF-MIB modules.   --   smfPerformanceGroup  OBJECT IDENTIFIER ::= { smfMIBObjects 4 }   smfPerfGobalGroup  OBJECT IDENTIFIER ::= { smfPerformanceGroup 1 }   --Cole, et al.                  Experimental                     [Page 33]

RFC 7367                       The SMF-MIB                  October 2014   -- IPv4 packet counters   --   smfPerfIpv4MultiPktsRecvTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of          multicast IPv4 packets received by the          device and delivered to the SMF process.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."   ::= { smfPerfGobalGroup 1 }   smfPerfIpv4MultiPktsForwardedTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of          multicast IPv4 packets forwarded by the          device.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."   ::= { smfPerfGobalGroup 2 }   smfPerfIpv4DuplMultiPktsDetectedTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of duplicate          multicast IPv4 packets detected by the          device.Cole, et al.                  Experimental                     [Page 34]

RFC 7367                       The SMF-MIB                  October 2014          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 6.2 'IPv4 Duplicate Packet          Detection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 3 }   smfPerfIpv4DroppedMultiPktsTTLExceededTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of dropped          multicast IPv4 packets by the          device due to Time to Live (TTL) exceeded.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 5 'SMF Packet Processing and          Forwarding' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 4 }   smfPerfIpv4TTLLargerThanPreviousTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv4 packets          received that have a TTL larger than that          of a previously received identical packet.          There is the potential for a counter discontinuity          in this object if the system SMF process has beenCole, et al.                  Experimental                     [Page 35]

RFC 7367                       The SMF-MIB                  October 2014          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 5 'SMF Packet Processing and          Forwarding' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 5 }   --   -- IPv6 packet counters   --   smfPerfIpv6MultiPktsRecvTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of          multicast IPv6 packets received by the          device and delivered to the SMF process.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."   ::= { smfPerfGobalGroup 6 }   smfPerfIpv6MultiPktsForwardedTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of          multicast IPv6 packets forwarded by the          device.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that theCole, et al.                  Experimental                     [Page 36]

RFC 7367                       The SMF-MIB                  October 2014          smfCfgSmfSysUpTime object also be monitored."   ::= { smfPerfGobalGroup 7 }   smfPerfIpv6DuplMultiPktsDetectedTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of duplicate          multicast IPv6 packets detected by the          device.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 6.1 'IPv6 Duplicate Packet          Detection' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 8 }   smfPerfIpv6DroppedMultiPktsTTLExceededTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of dropped          multicast IPv6 packets by the          device due to TTL exceeded.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 5 'SMF Packet Processing and          Forwarding' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 9 }Cole, et al.                  Experimental                     [Page 37]

RFC 7367                       The SMF-MIB                  October 2014   smfPerfIpv6TTLLargerThanPreviousTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv6 packets          received that have a TTL larger than that          of a previously received identical packet.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 5 'SMF Packet Processing and          Forwarding' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 10 }   smfPerfIpv6HAVAssistsReqdTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv6 packets          received that required the Hash Assist Value (HAV)          for DPD.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 6.1.1 'IPv6 SMF_DPD Option Header' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 11 }   smfPerfIpv6DpdHeaderInsertionsTotal  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"Cole, et al.                  Experimental                     [Page 38]

RFC 7367                       The SMF-MIB                  October 2014      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv6 packets          received that the device inserted the          DPD header option.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled.  In order to check for          the occurrence of such a discontinuity when monitoring          this counter object, it is recommended that the          smfCfgSmfSysUpTime object also be monitored."      REFERENCE         "SeeSection 6.1.2 'IPv6 Identification-Based          DPD' inRFC 6621 - 'Simplified Multicast Forwarding',          Macker, J., Ed., May 2012."   ::= { smfPerfGobalGroup 12 }   --   -- Per SMF Interface Performance Table   --   smfPerfInterfaceGroup OBJECT IDENTIFIER ::= { smfPerformanceGroup 2 }   smfPerfIpv4InterfacePerfTable OBJECT-TYPE      SYNTAX       SEQUENCE OF SmfPerfIpv4InterfacePerfEntry      MAX-ACCESS   not-accessible      STATUS       current      DESCRIPTION         "The SMF Interface Performance Table          describes the SMF counters per          interface."   ::= { smfPerfInterfaceGroup 1 }   smfPerfIpv4InterfacePerfEntry OBJECT-TYPE      SYNTAX       SmfPerfIpv4InterfacePerfEntry      MAX-ACCESS   not-accessible      STATUS       current      DESCRIPTION         "The SMF Interface Performance entry          describes the statistics for a particular          node interface."      INDEX { smfCfgIfIndex }   ::= { smfPerfIpv4InterfacePerfTable 1 }   SmfPerfIpv4InterfacePerfEntry ::=Cole, et al.                  Experimental                     [Page 39]

RFC 7367                       The SMF-MIB                  October 2014      SEQUENCE {         smfPerfIpv4MultiPktsRecvPerIf               Counter32,         smfPerfIpv4MultiPktsForwardedPerIf          Counter32,         smfPerfIpv4DuplMultiPktsDetectedPerIf       Counter32,         smfPerfIpv4DroppedMultiPktsTTLExceededPerIf Counter32,         smfPerfIpv4TTLLargerThanPreviousPerIf       Counter32         }   smfPerfIpv4MultiPktsRecvPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the number of multicast IP          packets received by the SMF process on          this device on this interface.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv4InterfacePerfEntry 1 }   smfPerfIpv4MultiPktsForwardedPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the number of          multicast IP packets forwarded by the          SMF process on this device          on this interface.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv4InterfacePerfEntry 2 }   smfPerfIpv4DuplMultiPktsDetectedPerIf  OBJECT-TYPECole, et al.                  Experimental                     [Page 40]

RFC 7367                       The SMF-MIB                  October 2014      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the number of duplicate          multicast IP packets detected by the          SMF process on this device          on this interface.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv4InterfacePerfEntry 3 }   smfPerfIpv4DroppedMultiPktsTTLExceededPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of dropped          multicast IPv4 packets by the SMF process          on this device on this interface          due to TTL exceeded.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv4InterfacePerfEntry 4 }   smfPerfIpv4TTLLargerThanPreviousPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv4 packets          received by the SMF process on this device          on this interface that have a TTL larger thanCole, et al.                  Experimental                     [Page 41]

RFC 7367                       The SMF-MIB                  October 2014          that of a previously received identical packet.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv4InterfacePerfEntry 5 }   smfPerfIpv6InterfacePerfTable OBJECT-TYPE      SYNTAX       SEQUENCE OF SmfPerfIpv6InterfacePerfEntry      MAX-ACCESS   not-accessible      STATUS       current      DESCRIPTION         "The SMF Interface Performance Table          describes the SMF counters per          interface."   ::= { smfPerfInterfaceGroup 2 }   smfPerfIpv6InterfacePerfEntry OBJECT-TYPE      SYNTAX       SmfPerfIpv6InterfacePerfEntry      MAX-ACCESS   not-accessible      STATUS       current      DESCRIPTION         "The SMF Interface Performance entry          describes the counters for a particular          node interface."      INDEX { smfCfgIfIndex }   ::= { smfPerfIpv6InterfacePerfTable 1 }   SmfPerfIpv6InterfacePerfEntry ::=      SEQUENCE {         smfPerfIpv6MultiPktsRecvPerIf               Counter32,         smfPerfIpv6MultiPktsForwardedPerIf          Counter32,         smfPerfIpv6DuplMultiPktsDetectedPerIf       Counter32,         smfPerfIpv6DroppedMultiPktsTTLExceededPerIf Counter32,         smfPerfIpv6TTLLargerThanPreviousPerIf       Counter32,         smfPerfIpv6HAVAssistsReqdPerIf              Counter32,         smfPerfIpv6DpdHeaderInsertionsPerIf         Counter32         }   smfPerfIpv6MultiPktsRecvPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      currentCole, et al.                  Experimental                     [Page 42]

RFC 7367                       The SMF-MIB                  October 2014      DESCRIPTION         "A counter of the number of          multicast IP packets received by the          SMF process on this device          on this interface.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv6InterfacePerfEntry 1 }   smfPerfIpv6MultiPktsForwardedPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the number of          multicast IP packets forwarded by the          SMF process on this device          on this interface.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv6InterfacePerfEntry 2 }   smfPerfIpv6DuplMultiPktsDetectedPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the number of duplicate          multicast IP packets detected by the          SMF process on this device          on this interface.          There is the potential for a counter discontinuity          in this object if the system SMF process has beenCole, et al.                  Experimental                     [Page 43]

RFC 7367                       The SMF-MIB                  October 2014          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv6InterfacePerfEntry 3 }   smfPerfIpv6DroppedMultiPktsTTLExceededPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the number of dropped          multicast IP packets by the          SMF process on this device          on this interface due to TTL          exceeded.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv6InterfacePerfEntry 4 }   smfPerfIpv6TTLLargerThanPreviousPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv6 packets          received that have a TTL larger than that          of a previously received identical packet          by the SMF process on this device on this          interface.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv6InterfacePerfEntry 5 }Cole, et al.                  Experimental                     [Page 44]

RFC 7367                       The SMF-MIB                  October 2014   smfPerfIpv6HAVAssistsReqdPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv6 packets          received by the SMF process on this device          on this interface that required the          HAV assist for DPD.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv6InterfacePerfEntry 6 }   smfPerfIpv6DpdHeaderInsertionsPerIf  OBJECT-TYPE      SYNTAX      Counter32      UNITS       "Packets"      MAX-ACCESS  read-only      STATUS      current      DESCRIPTION         "A counter of the total number of IPv6 packets          received by the SMF process on this device          on this interface that the device inserted the          DPD header option.          There is the potential for a counter discontinuity          in this object if the system SMF process has been          disabled and later enabled on this interface.          In order to check for the occurrence of such a          discontinuity when monitoring this counter object,          it is recommended that the smfCfgIfSmfUpTime          object also be monitored."   ::= { smfPerfIpv6InterfacePerfEntry 7 }   --   -- Notifications   --smfMIBNotifObjects OBJECT IDENTIFIER ::= { smfMIBNotifications 0 }smfMIBNotifControl OBJECT IDENTIFIER ::= { smfMIBNotifications 1 }   -- smfMIBNotifObjectsCole, et al.                  Experimental                     [Page 45]

RFC 7367                       The SMF-MIB                  October 2014   smfNotifAdminStatusChange NOTIFICATION-TYPE          OBJECTS { smfCfgRouterIDAddrType, -- The originator of                                            --   the notification.                    smfCfgRouterID,         -- The originator of                                            --   the notification.                    smfCfgAdminStatus       -- The new status of the                                            --   SMF process.                  }          STATUS       current          DESCRIPTION             "smfCfgAdminStatusChange is a notification sent when              the 'smfCfgAdminStatus' object changes."          ::= { smfMIBNotifObjects 1 }   smfNotifConfiguredOpModeChange NOTIFICATION-TYPE          OBJECTS { smfCfgRouterIDAddrType, -- The originator of                                            --   the notification.                    smfCfgRouterID,         -- The originator of                                            --   the notification.                    smfCfgOperationalMode   -- The new Operations                                            --   Mode of the SMF                                            --   process.                  }          STATUS       current          DESCRIPTION             "smfNotifConfiguredOpModeChange is a notification              sent when the 'smfCfgOperationalMode' object              changes."          ::= { smfMIBNotifObjects 2 }   smfNotifIfAdminStatusChange NOTIFICATION-TYPE          OBJECTS { smfCfgRouterIDAddrType, -- The originator of                                            --   the notification.                    smfCfgRouterID,         -- The originator of                                            --   the notification.                    ifName,                 -- The interface whose                                            --   status has changed.                    smfCfgIfAdminStatus     -- The new status of the                                            --   SMF interface.                  }          STATUS       current          DESCRIPTION             "smfCfgIfAdminStatusChange is a notification sent when              the 'smfCfgIfAdminStatus' object changes."          ::= { smfMIBNotifObjects 3 }    smfNotifDpdMemoryOverflowEvent NOTIFICATION-TYPE          OBJECTS { smfCfgRouterIDAddrType,   -- The originator ofCole, et al.                  Experimental                     [Page 46]

RFC 7367                       The SMF-MIB                  October 2014                                              --   the notification.                    smfCfgRouterID,           -- The originator of                                              --   the notification.                    smfStateDpdMemoryOverflow -- The counter of                                              --   the overflows.             }          STATUS       current          DESCRIPTION             "smfNotifDpdMemoryOverflowEvents is sent when the              number of memory overflow events exceeds              the 'smfNotifDpdMemoryOverflowThreshold' within the              previous number of seconds defined by the              'smfNotifDpdMemoryOverflowWindow'."          ::= { smfMIBNotifObjects 4 }   -- smfMIBNotifControl   smfNotifDpdMemoryOverflowThreshold OBJECT-TYPE          SYNTAX       Integer32 (0..255)          UNITS        "Events"          MAX-ACCESS   read-write          STATUS       current          DESCRIPTION             "A threshold value for the              'smfNotifDpdmemoryOverflowEvents' object.              If the number of occurrences exceeds              this threshold within the previous              number of seconds              'smfNotifDpdMemoryOverflowWindow',              then the 'smfNotifDpdMemoryOverflowEvent'              notification is sent.              The default value for this object is              '1'."          DEFVAL { 1 }           ::= { smfMIBNotifControl 1 }   smfNotifDpdMemoryOverflowWindow OBJECT-TYPE          SYNTAX       TimeTicks          MAX-ACCESS   read-write          STATUS       current          DESCRIPTION             "A time window value for the              'smfNotifDpdmemoryOverflowEvents' object.              If the number of occurrences exceeds              the 'smfNotifDpdMemoryOverflowThreshold'              within the previous number of seconds              'smfNotifDpdMemoryOverflowWindow',              then the 'smfNotifDpdMemoryOverflowEvent'Cole, et al.                  Experimental                     [Page 47]

RFC 7367                       The SMF-MIB                  October 2014              notification is sent.              The default value for this object is              '1'."          DEFVAL { 1 }           ::= { smfMIBNotifControl 2 }   --   -- Compliance Statements   --   smfCompliances  OBJECT IDENTIFIER ::= { smfMIBConformance 1 }   smfMIBGroups    OBJECT IDENTIFIER ::= { smfMIBConformance 2 }   smfBasicCompliance  MODULE-COMPLIANCE      STATUS current      DESCRIPTION "The basic implementation requirements for                   managed network entities that implement                   the SMF RSSA process."      MODULE  -- this module      MANDATORY-GROUPS { smfCapabObjectsGroup,                         smfConfigObjectsGroup }   ::= { smfCompliances 1 }   smfFullCompliance MODULE-COMPLIANCE      STATUS current      DESCRIPTION "The full implementation requirements for                   managed network entities that implement                   the SMF RSSA process."      MODULE  -- this module      MANDATORY-GROUPS { smfCapabObjectsGroup,                         smfConfigObjectsGroup,                         smfStateObjectsGroup,                         smfPerfObjectsGroup,                         smfNotifObjectsGroup,                         smfNotificationsGroup                       }   ::= { smfCompliances 2 }   --   -- Units of Conformance   --   smfCapabObjectsGroup OBJECT-GROUP      OBJECTS {              smfCapabilitiesOpModeID,              smfCapabilitiesRssaID      }Cole, et al.                  Experimental                     [Page 48]

RFC 7367                       The SMF-MIB                  October 2014      STATUS  current      DESCRIPTION         "Set of SMF configuration objects implemented          in this module."   ::= { smfMIBGroups 1 }   smfConfigObjectsGroup OBJECT-GROUP      OBJECTS {              smfCfgAdminStatus,              smfCfgSmfSysUpTime,              smfCfgRouterIDAddrType,              smfCfgRouterID,              smfCfgOperationalMode,              smfCfgRssaMember,              smfCfgIpv4Dpd,              smfCfgIpv6Dpd,              smfCfgMaxPktLifetime,              smfCfgDpdEntryMaxLifetime,              smfCfgNhdpRssaMesgTLVIncluded,              smfCfgNhdpRssaAddrBlockTLVIncluded,              smfCfgAddrForwardingGroupName,              smfCfgAddrForwardingAddrType,              smfCfgAddrForwardingAddress,              smfCfgAddrForwardingAddrPrefixLength,              smfCfgAddrForwardingStatus,              smfCfgIfAdminStatus,              smfCfgIfSmfUpTime,              smfCfgIfRowStatus      }      STATUS  current      DESCRIPTION         "Set of SMF configuration objects implemented          in this module."   ::= { smfMIBGroups 2 }   smfStateObjectsGroup  OBJECT-GROUP      OBJECTS {              smfStateNodeRsStatusIncluded,              smfStateDpdMemoryOverflow,              smfStateNeighborRSSA,              smfStateNeighborNextHopInterface      }      STATUS  current      DESCRIPTION         "Set of SMF state objects implementedCole, et al.                  Experimental                     [Page 49]

RFC 7367                       The SMF-MIB                  October 2014          in this module."   ::= { smfMIBGroups 3 }   smfPerfObjectsGroup  OBJECT-GROUP      OBJECTS {              smfPerfIpv4MultiPktsRecvTotal,              smfPerfIpv4MultiPktsForwardedTotal,              smfPerfIpv4DuplMultiPktsDetectedTotal,              smfPerfIpv4DroppedMultiPktsTTLExceededTotal,              smfPerfIpv4TTLLargerThanPreviousTotal,              smfPerfIpv6MultiPktsRecvTotal,              smfPerfIpv6MultiPktsForwardedTotal,              smfPerfIpv6DuplMultiPktsDetectedTotal,              smfPerfIpv6DroppedMultiPktsTTLExceededTotal,              smfPerfIpv6TTLLargerThanPreviousTotal,              smfPerfIpv6HAVAssistsReqdTotal,              smfPerfIpv6DpdHeaderInsertionsTotal,              smfPerfIpv4MultiPktsRecvPerIf,              smfPerfIpv4MultiPktsForwardedPerIf,              smfPerfIpv4DuplMultiPktsDetectedPerIf,              smfPerfIpv4DroppedMultiPktsTTLExceededPerIf,              smfPerfIpv4TTLLargerThanPreviousPerIf,              smfPerfIpv6MultiPktsRecvPerIf,              smfPerfIpv6MultiPktsForwardedPerIf,              smfPerfIpv6DuplMultiPktsDetectedPerIf,              smfPerfIpv6DroppedMultiPktsTTLExceededPerIf,              smfPerfIpv6TTLLargerThanPreviousPerIf,              smfPerfIpv6HAVAssistsReqdPerIf,              smfPerfIpv6DpdHeaderInsertionsPerIf      }      STATUS  current      DESCRIPTION         "Set of SMF performance objects implemented          in this module by total and per interface."   ::= { smfMIBGroups 4 }   smfNotifObjectsGroup  OBJECT-GROUP      OBJECTS {              smfNotifDpdMemoryOverflowThreshold,              smfNotifDpdMemoryOverflowWindow      }      STATUS  current      DESCRIPTION         "Set of SMF notification control          objects implemented in this module."   ::= { smfMIBGroups 5 }Cole, et al.                  Experimental                     [Page 50]

RFC 7367                       The SMF-MIB                  October 2014   smfNotificationsGroup  NOTIFICATION-GROUP      NOTIFICATIONS {              smfNotifAdminStatusChange,              smfNotifConfiguredOpModeChange,              smfNotifIfAdminStatusChange,              smfNotifDpdMemoryOverflowEvent      }      STATUS  current      DESCRIPTION         "Set of SMF notifications implemented          in this module."   ::= { smfMIBGroups 6 }   END8.  IANA-SMF-MIB Definitions   This section contains the IANA-SMF-MIB module.  This MIB module   defines two Textual Conventions for which IANA SHOULD maintain and   keep synchronized with the registry identified below within the   IANAsmfOpModeIdTC and the IANAsmfRssaIdTC TEXTUAL-CONVENTIONs.   The IANAsmfOpModeIdTC defines an index that identifies through   reference to a specific SMF operations mode.  The index is an integer   valued named-number enumeration consisting of an integer and label.   IANA is to create and maintain this Textual Convention.  Future   assignments are made to anyone on a first come, first served basis.   There is no substantive review of the request, other than to ensure   that it is well-formed and does not duplicate an existing assignment.   However, requests must include a minimal amount of clerical   information, such as a point of contact (including an email address)   and a brief description of the method being identified as a new SMF   operations mode.   The IANAsmfRssaIdTC defines an index that identifies through   reference to a specific Reduced Set Selection Algorithm (RSSA).  The   index is an integer valued named-number enumeration consisting of an   integer and label.  IANA is to create and maintain this Textual   Convention.   Future assignments to the IANAsmfRssaIdTC for the index range 5-127   require an RFC publication (either as an IETF submission or as an   Independent submission [RFC5742]).  The category of RFC MUST be   Standards Track.  The specific RSSAs MUST be documented in sufficient   detail so that interoperability between independent implementations   is possible.Cole, et al.                  Experimental                     [Page 51]

RFC 7367                       The SMF-MIB                  October 2014   Future assignments to the IANAsmfRssaIdTC for the index range 128-239   are private or local use only, with the type and purpose defined by   the local site.  No attempt is made to prevent multiple sites from   using the same value in different (and incompatible) ways.  There is   no need for IANA to review such assignments (since IANA will not   record these), and assignments are not generally useful for broad   interoperability.  It is the responsibility of the sites making use   of the Private Use range to ensure that no conflicts occur (within   the intended scope of use).   Future assignments to the IANAsmfRssaIdTC for the index range 240-255   are to facilitate experimentation.  These require an RFC publication   (either as an IETF submission or as an Independent submission   [RFC5742]).  The category of RFC MUST be Experimental.  The RSSA   algorithms MUST be documented in sufficient detail so that   interoperability between independent implementations is possible.   This MIB module references [RFC3626], [RFC5614], [RFC6621], and   [RFC7181].   IANA-SMF-MIB DEFINITIONS ::= BEGIN   IMPORTS       MODULE-IDENTITY, mib-2                 FROM SNMPv2-SMI     --RFC 2578       TEXTUAL-CONVENTION                 FROM SNMPv2-TC;     --RFC 2579   ianaSmfMIB MODULE-IDENTITY       LAST-UPDATED "201410100000Z"  -- October 10, 2014       ORGANIZATION "IANA"       CONTACT-INFO "Internet Assigned Numbers Authority                     Postal: ICANN                             12025 Waterfront Drive, Suite 300                             Los Angeles, CA 90094-2536                             United States                     Tel:    +1 310 301 5800                     EMail:  iana@iana.org"       DESCRIPTION  "This MIB module defines the                     IANAsmfOpModeIdTC and IANAsmfRssaIdTC                     Textual Conventions, and thus the                     enumerated values of the                     smfCapabilitiesOpModeID and                     smfCapabilitiesRssaID objects defined                     in the SMF-MIB."       REVISION     "201410100000Z"  -- October 10, 2014Cole, et al.                  Experimental                     [Page 52]

RFC 7367                       The SMF-MIB                  October 2014       DESCRIPTION          "Initial version of this MIB as published inRFC 7367.           Copyright (c) 2014 IETF Trust and the persons identified as           authors of the code.  All rights reserved.           Redistribution and use in source and binary forms, with or           without modification, is permitted pursuant to, and subject           to the license terms contained in, the Simplified BSD License           set forth inSection 4.c of the IETF Trust's Legal Provisions           Relating to IETF Documents           (http://trustee.ietf.org/license-info).          "       ::= { mib-2 225 }   IANAsmfOpModeIdTC ::= TEXTUAL-CONVENTION       STATUS       current       DESCRIPTION           "An index that identifies through reference to a specific            SMF operations mode.  There are basically three styles            of SMF operation with reduced relay sets currently            identified:              Independent operation 'independent(1)' -                  SMF performs its own relay                  set selection using information from an associated                  MANET NHDP process.              CDS-aware unicast routing operation 'routing(2)'-                  a coexistent unicast routing                  protocol provides dynamic relay                  set state based upon its own control plane                  Connected Dominating Set (CDS) or neighborhood                  discovery information.              Cross-layer operation 'crossLayer(3)' -                  SMF operates using neighborhood                  status and triggers from a                  cross-layer information base for dynamic relay                  set selection and maintenance.            IANA MUST update this Textual Convention accordingly.            The definition of this Textual Convention with the            addition of newly assigned values is updated            periodically by the IANA, in the            IANA-maintained registries.  (The            latest arrangements can be obtained by contacting the            IANA.)Cole, et al.                  Experimental                     [Page 53]

RFC 7367                       The SMF-MIB                  October 2014            Requests for new values SHOULD be made to IANA via            email (iana@iana.org)."      REFERENCE           "SeeSection 7.2 'Reduced Relay Set Forwarding',            and the Appendices A, B, and C inRFC 6621 - 'Simplified Multicast Forwarding',            Macker, J., Ed., May 2012."       SYNTAX  INTEGER {                        independent (1),                        routing (2),                        crossLayer (3)                        -- future (4-255)       }   IANAsmfRssaIdTC ::= TEXTUAL-CONVENTION       STATUS       current       DESCRIPTION           "An index that identifies through reference to specific            RSSAs.  Several are currently defined            in the Appendices A, B, and C ofRFC 6621.            Examples of RSSAs already identified within            this Textual Convention (TC) are:              Classical Flooding (cF(1)) - is the standard                 flooding algorithm where each node in the next                 retransmits the information on each of its interfaces.              Source-Based Multipoint Relay (sMPR(2)) -                 this algorithm is used by Optimized Link State Routing                 (OLSR) and OLSR version 2 (OLSRv2) protocols for the                 relay of link state updates and other control                 information (RFC 3626,RFC 7181).  Since each router                 picks its neighboring relays independently, sMPR                 forwarders depend upon previous hop information                 (e.g., source Media Access Control (MAC) address) to                 operate correctly.              Essential Connected Dominating Set (eCDS(3)) -                 defined inRFC 5614, this algorithm forms a single                 CDS mesh for the SMF operating region.  Its                 packet-forwarding rules are not dependent upon                 previous hop knowledge in contrast to sMPR.              Multipoint Relay Connected Dominating Set (mprCDS(4)) -                 This algorithm is an extension to the basic sMPR                 election algorithm that results in a shared                 (non-source-specific) SMF CDS.  Thus, its forwardingCole, et al.                  Experimental                     [Page 54]

RFC 7367                       The SMF-MIB                  October 2014                 rules are not dependent upon previous hop information,                 similar to eCDS.            IANA MUST update this Textual Convention accordingly.            The definition of this Textual Convention with the            addition of newly assigned values is updated            periodically by the IANA, in the            IANA-maintained registries.  (The            latest arrangements can be obtained by contacting the            IANA.)            Requests for new values SHOULD be made to IANA via            email (iana@iana.org)."       REFERENCE          "For example, see:Section 8.1.1. 'SMF Message TLV Type' and the Appendices           A, B, and C inRFC 6621 - 'Simplified Multicast Forwarding',           Macker, J., Ed., May 2012.RFC 3626 - Clausen, T., Ed., and P. Jacquet, Ed., 'Optimized           Link State Routing Protocol (OLSR)', October 2003.RFC 5614 - Ogier, R. and P. Spagnolo, 'Mobile Ad Hoc           Network (MANET) Extension of OSPF Using Connected           Dominating Set (CDS) Flooding', August 2009.RFC 7181 - Clausen, T., Dearlove, C., Jacquet, P., and           U. Herberg, 'The Optimized Link State Routing Protocol           Version 2', April 2014."       SYNTAX      INTEGER {                           cF(1),                           sMPR(2),                           eCDS(3),                           mprCDS(4)                           -- future(5-127)                           -- noStdAction(128-239)                           -- experimental(240-255)                   }   ENDCole, et al.                  Experimental                     [Page 55]

RFC 7367                       The SMF-MIB                  October 20149.  Security Considerations   This section discusses security implications of the choices made in   this SMF-MIB module.   There are a number of management objects defined in this MIB module   with a MAX-ACCESS clause of read-write and/or read-create.  Such   objects may be considered sensitive or vulnerable in some network   environments.  The support for SET operations in a non-secure   environment without proper protection can have a negative effect on   network operations.  These are the tables and objects and their   sensitivity/vulnerability:   o  'smfCfgAdminStatus' - this writable configuration object controls      the operational status of the SMF process.  If this setting is      configured inconsistently across the MANET multicast domain, then      delivery of multicast data may be inconsistent across the domain;      some nodes may not receive multicast data intended for them.   o  'smfCfgRouterIDAddrType' and 'smfCfgRouterID' - these writable      configuration objects define the ID of the SMF process.  These      objects should be configured with a routable address defined on      the local SMF device.  The smfCfgRouterID is a logical      identification that MUST be configured as unique across      interoperating SMF neighborhoods, and it is RECOMMENDED to be      chosen as the numerically largest address contained in a node's      'Neighbor Address List' as defined in NHDP.  A smfCfgRouterID MUST      be unique within the scope of the operating MANET network      regardless of the method used for selecting it.  If these objects      are misconfigured or configured inconsistently across the MANET,      then the ability of various RSSAs, e.g., eCDS, may be compromised.      This would potentially result in some routers within the MANET not      receiving multicast packets destine to them.  Hence, intentionally      misconfiguring these objects could pose a form of Denial-of-      Service (DoS) attack against the MANET.   o  'smfCfgOpMode' - this writable configuration object defines the      operational mode of the SMF process.  The operational mode defines      how the SMF process receives its data to form its local estimate      of the CDS.  It is recommended that the value for this object be      set consistently across the MANET to ensure proper operation of      the multicast packet forwarding.  If the value for this object is      set inconsistently across the MANET, the result may be that      multicast packet delivery will be compromised within the MANET.      Hence, intentionally misconfiguring this object could pose a form      DoS attack against the MANET.Cole, et al.                  Experimental                     [Page 56]

RFC 7367                       The SMF-MIB                  October 2014   o  'smfCfgRssa' - this writable configuration object sets the      specific RSSA for the SMF process.  If this object is set      inconsistently across the MANET domain, multicast delivery of data      will likely fail.  Hence, intentionally misconfiguring this object      could pose a form DoS attack against the MANET.   o  'smfCfgRssaMember' - this writable configuration object sets the      'interest' of the local SMF node in participating in the CDS.      Setting this object to 'never(3)' on a highly connected device      could lead to frequent island formation.  Setting this object to      'always(2)' could support data ex-filtration from the MANET      domain.   o  'smfCfgIpv4Dpd' - this writable configuration object sets the      duplicate packet detection method, i.e., H-DPD or I-DPD, for      forwarding of IPv4 multicast packets.  Forwarders may operate with      mixed H-DPD and I-DPD modes as long as they consistently perform      the appropriate DPD routines outlined in [RFC6621].  However, it      is RECOMMENDED that a deployment be configured with a common mode      for operational consistency.   o  'smfCfgIpv6Dpd' - this writable configuration object sets the      duplicate packet detection method for the forwarding of IPv6      multicast packets.  Since IPv6 SMF does specify an option header,      the interoperability constraints are not as loose as in the IPv4      version, and forwarders SHOULD NOT operate with mixed H-DPD and      I-DPD modes.  Hence, the value for this object SHOULD be      consistently set within the forwarders comprising the MANET, else      inconsistent forwarding may result unnecessary multicast packet      dropping.   o  'smfCfgMaxPktLifetime' - this writable configuration object sets      the estimate of the network packet traversal time.  If set too      small, this could lead to poor multicast data delivery ratios      throughout the MANET domain.  This could serve as a form of DoS      attack if this object value is set too small.   o  'smfCfgDpdEntryMaxLifetime' - this writable configuration object      sets the maximum lifetime (in seconds) for the cached DPD records      for the combined IPv4 and IPv6 methods.  If the memory is running      low prior to the MaxLifetime being exceeded, the local SMF devices      should purge the oldest records first.  If this object value is      set too small, then the effectiveness of the SMF DPD algorithms      may become greatly diminished causing a higher than necessary      packet load on the MANET.Cole, et al.                  Experimental                     [Page 57]

RFC 7367                       The SMF-MIB                  October 2014   o  'smfCfgNhdpRssaMesgTLVIncluded' - this writable configuration      object indicates whether or not the associated NHDP messages      include the RSSA Message TLV.  It is highly RECOMMENDED that this      object be set to 'true(1)' when the SMF operation mode is set to      independent as this information will inform the local forwarder of      the RSSA implemented in neighboring forwarders and is used to      ensure consistent forwarding across the MANET.  While it is      possible that SMF neighbors MAY be configured differently with      respect to the RSSA and still operate cooperatively, but these      cases will vary dependent upon the algorithm types designated and      this situation SHOULD be avoided.   o  'smfCfgNhdpRssaAddrBlockTLVIncluded' - this writable configuration      object indicates whether or not the associated NHDP messages      include the RSSA Address Block TLV.  The      smfNhdpRssaAddrBlockTLVIncluded is optional in all cases as it      depends on the existence of an address block that may not be      present.  If this SMF device is configured with NHDP, then this      object should be set to 'true(1)' as this TLV enables CDS relay      algorithm operation and configuration to be shared among 2-hop      neighborhoods.  Some relay algorithms require 2-hop neighbor      configuration in order to correctly select relay sets.   o  'smfCfgAddrForwardingTable' - the writable configuration objects      in this table indicate which multicast IP addresses are to be      forwarded by this SMF node.  Misconfiguration of rows within this      table can limit the ability of this SMF device to properly forward      multicast data.   o  'smfCfgInterfaceTable' - the writable configuration objects in      this table indicate which SMF node interfaces are participating in      the SMF packet forwarding process.  Misconfiguration of rows      within this table can limit the ability of this SMF device to      properly forward multicast data.   Some of the readable objects in this MIB module (i.e., objects with a   MAX-ACCESS other than not-accessible) may be considered sensitive or   vulnerable in some network environments.  It is thus important to   control even GET and/or NOTIFY access to these objects and possibly   to even encrypt the values of these objects when sending them over   the network via SNMP.  These are the tables and objects and their   sensitivity/vulnerability:   o  'smfNodeRsStatusIncluded' - this readable state object indicates      whether or not this SMF node is part of the CDS.  Being part of      the CDS makes this node a distinguished device.  It could be      exploited for data ex-filtration, or DoS attacks.Cole, et al.                  Experimental                     [Page 58]

RFC 7367                       The SMF-MIB                  October 2014   o  'smfStateNeighborTable' - the readable state objects in this table      indicate current neighbor nodes to this SMF node.  Exposing this      information to an attacker could allow the attacker easier access      to the larger MANET domain.   The remainder of the objects in the SMF-MIB module are performance   counter objects.  While these give an indication of the activity of   the SMF process on this node, it is not expected that exposing these   values poses a security risk to the MANET network.   SNMP versions prior to SNMPv3 did not include adequate security.   Even if the network itself is secure (for example by using IPsec),   even then, there is no control as to who on the secure network is   allowed to access and GET/SET (read/change/create/delete) the objects   in this MIB module.   Implementations SHOULD provide the security features described by the   SNMPv3 framework (see [RFC3410]), and implementations claiming   compliance to the SNMPv3 standard MUST include full support for   authentication and privacy via the User-based Security Model (USM)   [RFC3414] with the AES cipher algorithm [RFC3826].  Implementations   MAY also provide support for the Transport Security Model (TSM)   [RFC5591] in combination with a secure transport such as SSH   [RFC5592] or TLS/DTLS [RFC6353].   Further, deployment of SNMP versions prior to SNMPv3 is NOT   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to   enable cryptographic security.  It is then a customer/operator   responsibility to ensure that the SNMP entity giving access to an   instance of this MIB module is properly configured to give access to   the objects only to those principals (users) that have legitimate   rights to indeed GET or SET (change/create/delete) them.10.  Applicability Statement   This document describes objects for configuring parameters of the   Simplified Multicast Forwarding [RFC6621] process on a Mobile Ad Hoc   Network (MANET) router.  This MIB module, denoted SMF-MIB, also   reports state and performance information and notifications.  This   section provides some examples of how this MIB module can be used in   MANET network deployments.  A fuller discussion of MANET network   management use cases and challenges is out of scope for this   document.   SMF is designed to allow MANET routers to forward IPv4 and IPv6   packets over the MANET and cover the MANET nodes through the   automatic discovery of efficient estimates of the Minimum Connected   Dominating Set (MCDS) of nodes within the MANET.  The MCDS isCole, et al.                  Experimental                     [Page 59]

RFC 7367                       The SMF-MIB                  October 2014   estimated using the Relay Set Selection Algorithms (RSSAs) discussed   within this document.  In the following, three scenarios are listed   where this MIB module is useful:   o  For a Parking Lot Initial Configuration Situation - it is common      for the vehicles comprising the MANET being forward deployed at a      remote location, e.g., the site of a natural disaster, to be off-      loaded in a parking lot where an initial configuration of the      networking devices is performed.  The configuration is loaded into      the devices from a fixed-location Network Operations Center (NOC)      at the parking lot, and the vehicles are stationary at the parking      lot while the configuration changes are made.  Standards-based      methods for configuration management from the co-located NOC are      necessary for this deployment option.  The set of interesting      configuration objects for the SMF process are listed within this      MIB module.   o  For Mobile vehicles with Low Bandwidth Satellite Link to a Fixed      NOC - Here the vehicles carrying the MANET routers carry multiple      wireless interfaces, one of which is a relatively low-bandwidth      on-the-move satellite connection that interconnects a fix NOC to      the nodes of the MANET.  Standards-based methods for monitoring      and fault management from the fixed NOC are necessary for this      deployment option.   o  For Fixed NOC and Mobile Local Manager in Larger Vehicles - for      larger vehicles, a hierarchical network management arrangement is      useful.  Centralized network management is performed from a fixed      NOC while local management is performed locally from within the      vehicles.  Standards-based methods for configuration, monitoring,      and fault management are necessary for this deployment option.   Here we provide an example of the simplest of configurations to   establish an operational multicast forwarding capability in a MANET.   This discussion only identifies the configuration necessary through   the SMF-MIB module and assumes that other configuration has occurred.   Assume that the MANET is to support only IPv4 addressing and that the   MANET nodes are to be configured in the context of the Parking Lot   Initialization case above.  Then, the SMF-MIB module defines ten   configuration OIDs and two configuration tables, i.e., the   smfCfgAddrForwardingTable and the smfCfgInterfaceTable.  Of the ten   OIDs defined, all but one, i.e., the smfCfgRouterID, have DEFVAL   clauses that allow for a functional configuration of the SMF process   within the MANET.  The smfCfgRouterIDType defaults to 'ipv4' so the   smfCfgRouterID can be set as, e.g., (assuming the use of the Net-SNMP   toolkit),:   snmpset [options] <smfCfgRouterID_OID>.0 a 192.0.2.100Cole, et al.                  Experimental                     [Page 60]

RFC 7367                       The SMF-MIB                  October 2014   If the smfCfgAddrForwardingTable is left empty, then the SMF local   forwarder will forward all multicast addresses.  So this table does   not require configuration if you want to have the MANET forward all   multicast addresses.   All that remains is to configure at least one row in the   smfCfgInterfaceTable.  Assume that the node has a wireless interface   with an <ifName>='wlan0' and an <ifIndex>='1'.  All of the objects in   the rows of the smfCfgInterfaceTable have a DEFVAL clause; hence,   only the RowStatus object needs to be set.  So the SMF process will   be activated on the 'wlan0' interface by the following network   manager snmpset command:   snmpset [options] <smfCfgIfRowStatus>.1 i active(1)   At this point, the configured forwarder will begin a Classical   Flooding algorithm to forward all multicast addresses IPv4 packets it   receives.   To provide a more efficient multicast forwarding within the MANET,   the network manager could walk the smfCapabilitiesTable to identify   other SMF Operational Modes, for example:   snmpwalk [options] <smfCapabilitiesTable>   SMF-MIB::smfCapabilitiesIndex.1 = INTEGER: 1   SMF-MIB::smfCapabilitiesIndex.2 = INTEGER: 2   SMF-MIB::smfCapabilitiesOpModeID.1 = INTEGER: cfOnly(1)   SMF-MIB::smfCapabilitiesOpModeiD.2 = INTEGER: independent(2)   SMF-MIB::smfCapabilitiesRssaID.1 = INTEGER: cF(1)   SMF-MIB::smfCapabilitiesRssaID.2 = INTEGER: eCDS(3)   In this example, the forwarding device also supports the Essential   Connected Dominating Set (eCDS) RSSA with the forwarder in the   'independent(2)' operational mode.  If the network manager were to   then issue an snmpset, for example:   snmpset [options] <smfCfgOperationalMode>.0 i 2   then the local forwarder would switch its forwarding behavior from   Classical Flooding to the more efficient eCDS flooding.Cole, et al.                  Experimental                     [Page 61]

RFC 7367                       The SMF-MIB                  October 201411.  IANA Considerations   This document defines two MIB modules:   1.  SMF-MIB is defined inSection 7 and is an experimental MIB       module.   2.  IANA-SMF-MIB is defined inSection 8 and is an IANA MIB module       that IANA maintains.   Thus, IANA has completed three actions:   IANA has allocated an OBJECT IDENTIFIER value and recorded it in the   SMI Numbers registry in the subregistry called "SMI Experimental   Codes" under the experimental branch (1.3.6.1.3).              Decimal | Name    | Description   | Reference              --------+---------+---------------+------------               126    | smfMib  | SMF-MIB       | [RFC7367]   IANA has allocated an OBJECT IDENTIFIER value and recorded it in the   SMI Numbers registry in the subregistry called "SMI Network   Management MGMT Codes Internet-standard MIB" under the mib-2 branch   (1.3.6.1.2.1).              Decimal | Name          | Description     | Reference              --------+---------------+-----------------+------------               225    | ianaSmfMIB    | IANA-SMF-MIB    | [RFC7367]   IANA maintains a MIB module called ianaSmfMIB and has populated it   with the initial MIB module defined inSection 8 of this document by   creating a new entry in the registry "IANA Maintained MIBs" called   "IANA-SMF-MIB".12.  References12.1.  Normative References   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate              Requirement Levels",BCP 14,RFC 2119, March 1997,              <http://www.rfc-editor.org/info/rfc2119>.   [RFC2578]  McCloghrie, K., Ed., Perkins, D., Ed., and J.              Schoenwaelder, Ed., "Structure of Management Information              Version 2 (SMIv2)", STD 58,RFC 2578, April 1999,              <http://www.rfc-editor.org/info/rfc2578>.Cole, et al.                  Experimental                     [Page 62]

RFC 7367                       The SMF-MIB                  October 2014   [RFC2579]  McCloghrie, K., Ed., Perkins, D., Ed., and J.              Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD              58,RFC 2579, April 1999,              <http://www.rfc-editor.org/info/rfc2579>.   [RFC2580]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,              "Conformance Statements for SMIv2", STD 58,RFC 2580,              April 1999, <http://www.rfc-editor.org/info/rfc2580>.   [RFC2863]  McCloghrie, K. and F. Kastenholz, "The Interfaces Group              MIB",RFC 2863, June 2000,              <http://www.rfc-editor.org/info/rfc2863>.   [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,              "Introduction and Applicability Statements for Internet-              Standard Management Framework",RFC 3410, December 2002,              <http://www.rfc-editor.org/info/rfc3410>.   [RFC3411]  Harrington, D., Presuhn, R., and B. Wijnen, "An              Architecture for Describing Simple Network Management              Protocol (SNMP) Management Frameworks", STD 62,RFC 3411,              December 2002, <http://www.rfc-editor.org/info/rfc3411>.   [RFC3414]  Blumenthal, U. and B. Wijnen, "User-based Security Model              (USM) for version 3 of the Simple Network Management              Protocol (SNMPv3)", STD 62,RFC 3414, December 2002,              <http://www.rfc-editor.org/info/rfc3414>.   [RFC3418]  Presuhn, R., "Management Information Base (MIB) for the              Simple Network Management Protocol (SNMP)", STD 62,RFC3418, December 2002,              <http://www.rfc-editor.org/info/rfc3418>.   [RFC3626]  Clausen, T. and P. Jacquet, "Optimized Link State Routing              Protocol (OLSR)",RFC 3626, October 2003,              <http://www.rfc-editor.org/info/rfc3626>.   [RFC3826]  Blumenthal, U., Maino, F., and K. McCloghrie, "The              Advanced Encryption Standard (AES) Cipher Algorithm in the              SNMP User-based Security Model",RFC 3826, June 2004,              <http://www.rfc-editor.org/info/rfc3826>.   [RFC4001]  Daniele, M., Haberman, B., Routhier, S., and J.              Schoenwaelder, "Textual Conventions for Internet Network              Addresses",RFC 4001, February 2005,              <http://www.rfc-editor.org/info/rfc4001>.Cole, et al.                  Experimental                     [Page 63]

RFC 7367                       The SMF-MIB                  October 2014   [RFC5591]  Harrington, D. and W. Hardaker, "Transport Security Model              for the Simple Network Management Protocol (SNMP)", STD              78,RFC 5591, June 2009,              <http://www.rfc-editor.org/info/rfc5591>.   [RFC5592]  Harrington, D., Salowey, J., and W. Hardaker, "Secure              Shell Transport Model for the Simple Network Management              Protocol (SNMP)",RFC 5592, June 2009,              <http://www.rfc-editor.org/info/rfc5592>.   [RFC5614]  Ogier, R. and P. Spagnolo, "Mobile Ad Hoc Network (MANET)              Extension of OSPF Using Connected Dominating Set (CDS)              Flooding",RFC 5614, August 2009,              <http://www.rfc-editor.org/info/rfc5614>.   [RFC5742]  Alvestrand, H. and R. Housley, "IESG Procedures for              Handling of Independent and IRTF Stream Submissions",BCP92,RFC 5742, December 2009,              <http://www.rfc-editor.org/info/rfc5742>.   [RFC6353]  Hardaker, W., "Transport Layer Security (TLS) Transport              Model for the Simple Network Management Protocol (SNMP)",              STD 78,RFC 6353, July 2011,              <http://www.rfc-editor.org/info/rfc6353>.   [RFC6621]  Macker, J., "Simplified Multicast Forwarding",RFC 6621,              May 2012, <http://www.rfc-editor.org/info/rfc6621>.   [RFC7181]  Clausen, T., Dearlove, C., Jacquet, P., and U. Herberg,              "The Optimized Link State Routing Protocol Version 2",RFC7181, April 2014,              <http://www.rfc-editor.org/info/rfc7181>.12.2.  Informative References   [RFC4293]  Routhier, S., "Management Information Base for the              Internet Protocol (IP)",RFC 4293, April 2006,              <http://www.rfc-editor.org/info/rfc4293>.   [RFC5132]  McWalter, D., Thaler, D., and A. Kessler, "IP Multicast              MIB",RFC 5132, December 2007,              <http://www.rfc-editor.org/info/rfc5132>.Cole, et al.                  Experimental                     [Page 64]

RFC 7367                       The SMF-MIB                  October 2014Acknowledgements   The authors would like to acknowledge the valuable comments from Sean   Harnedy in the early phases of the development of this MIB module.   The authors would like to thank Adrian Farrel, Dan Romascanu, Juergen   Shoenwaelder, Stephen Hanna, and Brian Haberman for their careful   review of this document and their insightful comments.  We also wish   to thank the entire MANET WG for many reviews of this document.   Further, the authors would like to thank James Nguyen for his careful   review and comments on this MIB module and his work on the   definitions of the follow-on MIB modules to configure specific RSSAs   related to SMF.  Further, the authors would like to acknowledge the   work of James Nguyen, Brian Little, Ryan Morgan, and Justin Dean on   their software development of the SMF-MIB.Contributors   This MIB document uses the template authored by D.  Harrington that   is based on contributions from the MIB Doctors, especially Juergen   Schoenwaelder, Dave Perkins, C.M.  Heard, and Randy Presuhn.Authors' Addresses   Robert G. Cole   US Army CERDEC   6010 Frankford Road   Aberdeen Proving Ground, Maryland  21005   United States   Phone: +1 443 395 8744   EMail: robert.g.cole@us.army.mil   Joseph Macker   Naval Research Laboratory   Washington, D.C.  20375   United States   EMail: macker@itd.nrl.navy.mil   Brian Adamson   Naval Research Laboratory   Washington, D.C.  20375   United States   EMail: adamson@itd.nrl.navy.milCole, et al.                  Experimental                     [Page 65]

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