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RFC 7453

 
 
 

MPLS Transport Profile (MPLS-TP) Traffic Engineering (TE) Management Information Base (MIB)

Part 3 of 3, p. 39 to 62
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13.  MPLS Tunnel Extension MIB Definitions

   This MIB module imports from [RFC2578], [RFC2579], [RFC2580],
   [RFC3289], [RFC3811], and [RFC3812].

   MPLS-TE-EXT-STD-MIB DEFINITIONS ::= BEGIN

   IMPORTS
      MODULE-IDENTITY, OBJECT-TYPE
         FROM SNMPv2-SMI                               -- RFC 2578
      MODULE-COMPLIANCE, OBJECT-GROUP
         FROM SNMPv2-CONF                              -- RFC 2580
      TruthValue, RowStatus, RowPointer, StorageType
         FROM SNMPv2-TC                                -- RFC 2579
      IndexIntegerNextFree
         FROM DIFFSERV-MIB                             -- RFC 3289
      MplsGlobalId, MplsNodeId, MplsCcId, MplsIccId
         FROM MPLS-TC-EXT-STD-MIB
      mplsStdMIB, MplsTunnelIndex, MplsTunnelInstanceIndex,
      MplsExtendedTunnelId
         FROM MPLS-TC-STD-MIB                          -- RFC 3811
      mplsTunnelIndex, mplsTunnelInstance, mplsTunnelIngressLSRId,
      mplsTunnelEgressLSRId

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         FROM MPLS-TE-STD-MIB                          -- RFC 3812
      ;

   mplsTeExtStdMIB MODULE-IDENTITY
      LAST-UPDATED
         "201502020000Z" -- February 2, 2015
      ORGANIZATION
         "Multiprotocol Label Switching (MPLS) Working Group"
      CONTACT-INFO
         "
                Venkatesan Mahalingam
                Dell Inc,
                5450 Great America Parkway,
                Santa Clara, CA 95054, USA
          Email: venkat.mahalingams@gmail.com

                Kannan KV Sampath
                Redeem,
                India
          Email: kannankvs@gmail.com

                Sam Aldrin
                Huawei Technologies
                2330 Central Express Way,
                Santa Clara, CA 95051, USA
          Email:  aldrin.ietf@gmail.com

                Thomas D. Nadeau
          Email: tnadeau@lucidvision.com
        "
      DESCRIPTION
        "This MIB module contains generic object definitions for
         extending the MPLS Traffic Engineering tunnels in transport
         networks.

         Copyright (c) 2015 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 in Section 4.c of the IETF Trust's Legal Provisions
         Relating to IETF Documents
         (http://trustee.ietf.org/license-info)."

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      -- Revision history.

      REVISION
       "201502020000Z" -- February 2, 2015

      DESCRIPTION
           "MPLS TE MIB objects extension"

      ::= { mplsStdMIB 20 }

   -- Top-level components of this MIB module.

   -- tables, scalars
   mplsTeExtObjects       OBJECT IDENTIFIER
                                    ::= { mplsTeExtStdMIB 0 }
   -- conformance
   mplsTeExtConformance   OBJECT IDENTIFIER
                                    ::= { mplsTeExtStdMIB 1 }

  -- Start of MPLS Transport Profile Node configuration table

  mplsTunnelExtNodeConfigLocalIdNext OBJECT-TYPE
   SYNTAX        IndexIntegerNextFree (0..16777215)
   MAX-ACCESS    read-only
   STATUS        current
   DESCRIPTION
      "This object contains an unused value for
       mplsTunnelExtNodeConfigLocalId, or a zero to indicate
       that none exist.  Negative values are not allowed,
       as they do not correspond to valid values of
       mplsTunnelExtNodeConfigLocalId."
    ::= { mplsTeExtObjects 1 }

    mplsTunnelExtNodeConfigTable OBJECT-TYPE
     SYNTAX        SEQUENCE OF MplsTunnelExtNodeConfigEntry
     MAX-ACCESS    not-accessible
     STATUS        current
     DESCRIPTION
       "This table allows the operator to map a node or
        LSR identifier (IP-compatible [Global_ID::Node_ID] or
        ICC-based [ICC_Operator_ID::Node_ID]) with a local
        identifier.

        This table is created to reuse the existing
        mplsTunnelTable for MPLS-based transport network
        tunnels also.

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        Since the MPLS tunnel's Ingress/Egress LSR identifiers'
        size (Unsigned32) value is not compatible for
        MPLS-TP Tunnel, i.e., Global_ID::Node_ID of size 8 bytes and
        ICC_Operator_ID::Node_ID of size 12 bytes, there exists a
        need to map the Global_ID::Node_ID or ICC_Operator_ID::Node_ID
        with the local identifier of size 4 bytes (Unsigned32) value
        in order to index (Ingress/Egress LSR identifier)
        the existing mplsTunnelTable."

     ::= { mplsTeExtObjects 2 }

    mplsTunnelExtNodeConfigEntry OBJECT-TYPE
     SYNTAX        MplsTunnelExtNodeConfigEntry
     MAX-ACCESS    not-accessible
     STATUS        current
     DESCRIPTION
        "An entry in this table represents a mapping
        identification for the operator or service provider
        to a node or an LSR.

        As per RFC 6370, IP-compatible mapping is represented
        as Global_ID::Node_ID.

        As per RFC 6923, the CC and the ICC form the ICC_Operator_ID
        as CC::ICC, and ICC-compatible mapping is represented
        as ICC_Operator_ID::Node_ID.

        Note: Each entry in this table should have a unique
        [Global_ID and Node_ID] or [CC::ICC and Node_ID] combination."
        INDEX { mplsTunnelExtNodeConfigLocalId }
        ::= { mplsTunnelExtNodeConfigTable 1 }

    MplsTunnelExtNodeConfigEntry ::= SEQUENCE {
          mplsTunnelExtNodeConfigLocalId     MplsExtendedTunnelId,
          mplsTunnelExtNodeConfigGlobalId    MplsGlobalId,
          mplsTunnelExtNodeConfigCcId        MplsCcId,
          mplsTunnelExtNodeConfigIccId       MplsIccId,
          mplsTunnelExtNodeConfigNodeId      MplsNodeId,
          mplsTunnelExtNodeConfigIccValid    TruthValue,
          mplsTunnelExtNodeConfigStorageType StorageType,
          mplsTunnelExtNodeConfigRowStatus   RowStatus

    }

    mplsTunnelExtNodeConfigLocalId  OBJECT-TYPE
       SYNTAX        MplsExtendedTunnelId
       MAX-ACCESS    not-accessible
       STATUS        current

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       DESCRIPTION
         "This object is used in accommodating the bigger-
          size Global_ID::Node_ID and/or the ICC_Operator_ID::Node_ID
          with the smaller-size LSR identifier in order to index
          the mplsTunnelTable.

          The local identifier is configured between 0 and 16777215,
          as the valid IP address range starts from
          16777216(01.00.00.00).
          This range is chosen to determine whether the
          mplsTunnelTable's Ingress/Egress LSR ID is an IP address or
          local identifier.  If the configured range is not an
          IP address, the operator is expected to retrieve the
          complete information (Global_ID::Node_ID or
          ICC_Operator_ID::Node_ID) from mplsTunnelExtNodeConfigTable.
          This way, the existing mplsTunnelTable is reused for
          bidirectional tunnel extensions for MPLS-based transport
          networks.

          The local identifier allows the operator to assign
          a unique identifier to map Global_ID::Node_ID and/or
          ICC_Operator_ID::Node_ID.  As this local identifier is unique
          within the node and the same syntax of this object can be
          used for MPLS-TE tunnel also, it is up to the operator/local
          management entity to choose a non-conflicting value for
          indexing the MPLS and MPLS-TP tunnel entries."
       ::= { mplsTunnelExtNodeConfigEntry 1 }


    mplsTunnelExtNodeConfigGlobalId  OBJECT-TYPE
       SYNTAX        MplsGlobalId
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
         "This object indicates the Global Operator Identifier.
          This object has no meaning when
          mplsTunnelExtNodeConfigIccValid is set true."
       REFERENCE
             "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370,
              Section 3."
       ::= { mplsTunnelExtNodeConfigEntry 2 }

    mplsTunnelExtNodeConfigCcId OBJECT-TYPE
         SYNTAX      MplsCcId
         MAX-ACCESS  read-create
         STATUS      current

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         DESCRIPTION
            "This object allows the operator or service provider to
             configure a unique MPLS-TP ITU-T Country Code (CC)
             either for Ingress ID or Egress ID.

             This object has no meaning when
             mplsTunnelExtNodeConfigIccValid is set to false."
            REFERENCE
               "MPLS-TP Identifiers Following ITU-T Conventions,
               RFC 6923, Section 3"
       ::= { mplsTunnelExtNodeConfigEntry 3 }

       mplsTunnelExtNodeConfigIccId OBJECT-TYPE
            SYNTAX      MplsIccId
            MAX-ACCESS  read-create
            STATUS      current
            DESCRIPTION
               "This object allows the operator or service provider to
                configure a unique MPLS-TP ITU-T Carrier Code (ICC)
                either for Ingress ID or Egress ID.

                This object has no meaning when
                mplsTunnelExtNodeConfigIccValid is set to false."
            REFERENCE
               "MPLS-TP Identifiers Following ITU-T Conventions,
                RFC 6923, Section 3"
       ::= { mplsTunnelExtNodeConfigEntry 4 }

       mplsTunnelExtNodeConfigNodeId  OBJECT-TYPE
          SYNTAX        MplsNodeId
          MAX-ACCESS    read-create
          STATUS        current
          DESCRIPTION
             "This object indicates the Node_ID within the scope
              of a Global_ID or ICC_Operator_ID."
          REFERENCE
              "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370,
               Section 4."
          ::= { mplsTunnelExtNodeConfigEntry 5 }

       mplsTunnelExtNodeConfigIccValid  OBJECT-TYPE
          SYNTAX        TruthValue
          MAX-ACCESS    read-create
          STATUS        current
          DESCRIPTION
             "Denotes whether or not this entry uses
              mplsTunnelExtNodeConfigCcId,
              mplsTunnelExtNodeConfigIccId, and

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              mplsTunnelExtNodeConfigNodeId for mapping
              the ICC-based identifiers with the local identifier.
              Note that if this variable is set to false, then the
              mplsTunnelExtNodeConfigGlobalId and
              mplsTunnelExtNodeConfigNodeId objects should have
              the valid information."
          DEFVAL { false }
            ::= { mplsTunnelExtNodeConfigEntry 6 }

       mplsTunnelExtNodeConfigStorageType OBJECT-TYPE
          SYNTAX        StorageType
          MAX-ACCESS    read-create
          STATUS        current
          DESCRIPTION
           "This variable indicates the storage type for this
            object.
            Conceptual rows having the value 'permanent'
            need not allow write-access to any columnar
            objects in the row."
          DEFVAL { volatile }
          ::= { mplsTunnelExtNodeConfigEntry 7 }

    mplsTunnelExtNodeConfigRowStatus OBJECT-TYPE
       SYNTAX        RowStatus
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
          "This object allows the operator to create, modify,
           and/or delete a row in this table."
       ::= { mplsTunnelExtNodeConfigEntry 8 }


   -- End of MPLS Transport Profile Node configuration table

   -- Start of MPLS Transport Profile Node IP-compatible
   -- mapping table

  mplsTunnelExtNodeIpMapTable OBJECT-TYPE
     SYNTAX        SEQUENCE OF MplsTunnelExtNodeIpMapEntry

     MAX-ACCESS    not-accessible
     STATUS        current
     DESCRIPTION
         "This read-only table allows the operator to retrieve
          the local identifier for a given Global_ID::Node_ID in an
          IP-compatible operator environment.
          This table MAY be used in on-demand and/or proactive
          OAM operations to get the Ingress/Egress LSR identifier

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          (local identifier) from Src-Global_Node_ID
          or Dst-Global_Node_ID.  The Ingress and Egress LSR
          identifiers are used to retrieve the tunnel entry.

          This table returns nothing when the associated entry
          is not defined in mplsTunnelExtNodeConfigTable."
     ::= { mplsTeExtObjects 3 }

    mplsTunnelExtNodeIpMapEntry OBJECT-TYPE
     SYNTAX        MplsTunnelExtNodeIpMapEntry
     MAX-ACCESS    not-accessible
     STATUS        current
     DESCRIPTION
           "An entry in this table represents a mapping of
            Global_ID::Node_ID with the local identifier.

            An entry in this table is created automatically when
            the local identifier is associated with Global_ID and
            Node_Id in the mplsTunnelExtNodeConfigTable.

            Note: Each entry in this table should have a unique
            Global_ID and Node_ID combination."
      INDEX { mplsTunnelExtNodeIpMapGlobalId,
              mplsTunnelExtNodeIpMapNodeId
            }
      ::= { mplsTunnelExtNodeIpMapTable 1 }

    MplsTunnelExtNodeIpMapEntry ::= SEQUENCE {
          mplsTunnelExtNodeIpMapGlobalId    MplsGlobalId,
          mplsTunnelExtNodeIpMapNodeId      MplsNodeId,
          mplsTunnelExtNodeIpMapLocalId     MplsExtendedTunnelId
    }

    mplsTunnelExtNodeIpMapGlobalId  OBJECT-TYPE
       SYNTAX        MplsGlobalId
       MAX-ACCESS    not-accessible
       STATUS        current
       DESCRIPTION
         "This object indicates the Global_ID."
       ::= { mplsTunnelExtNodeIpMapEntry 1 }

    mplsTunnelExtNodeIpMapNodeId  OBJECT-TYPE
       SYNTAX        MplsNodeId
       MAX-ACCESS    not-accessible
       STATUS        current

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       DESCRIPTION
         "This object indicates the Node_ID within the
          operator."
       ::= { mplsTunnelExtNodeIpMapEntry 2 }

    mplsTunnelExtNodeIpMapLocalId  OBJECT-TYPE
       SYNTAX        MplsExtendedTunnelId
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
         "This object contains an IP-compatible local identifier
          that is defined in mplsTunnelExtNodeConfigTable."
       ::= { mplsTunnelExtNodeIpMapEntry 3 }

    -- End MPLS Transport Profile Node IP compatible table

    -- Start of MPLS Transport Profile Node ICC based table

    mplsTunnelExtNodeIccMapTable OBJECT-TYPE
     SYNTAX        SEQUENCE OF MplsTunnelExtNodeIccMapEntry
     MAX-ACCESS    not-accessible
     STATUS        current
     DESCRIPTION
        "This read-only table allows the operator to retrieve
         the local identifier for a given ICC_Operator_ID::Node_ID
         in an ICC operator environment.

         This table MAY be used in on-demand and/or proactive
         OAM operations to get the Ingress/Egress LSR
         identifier (local identifier) from Src-ICC
         or Dst-ICC.  The Ingress and Egress LSR
         identifiers are used to retrieve the tunnel entry.
         This table returns nothing when the associated entry
         is not defined in mplsTunnelExtNodeConfigTable."
     ::= { mplsTeExtObjects 4 }

    mplsTunnelExtNodeIccMapEntry OBJECT-TYPE
     SYNTAX        MplsTunnelExtNodeIccMapEntry
     MAX-ACCESS    not-accessible
     STATUS        current
     DESCRIPTION
           "An entry in this table represents a mapping of
            ICC_Operator_ID::Node_ID with the local identifier.

            An entry in this table is created automatically when
            the local identifier is associated with
            ICC_Operator_ID::Node_ID in
            the mplsTunnelExtNodeConfigTable."

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      INDEX { mplsTunnelExtNodeIccMapCcId,
              mplsTunnelExtNodeIccMapIccId,
              mplsTunnelExtNodeIccMapNodeId }
      ::= { mplsTunnelExtNodeIccMapTable 1 }

    MplsTunnelExtNodeIccMapEntry ::= SEQUENCE {
          mplsTunnelExtNodeIccMapCcId       MplsCcId,
          mplsTunnelExtNodeIccMapIccId      MplsIccId,
          mplsTunnelExtNodeIccMapNodeId     MplsNodeId,
          mplsTunnelExtNodeIccMapLocalId    MplsExtendedTunnelId
    }

    mplsTunnelExtNodeIccMapCcId OBJECT-TYPE
         SYNTAX      MplsCcId
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
            "This object allows the operator or service provider to
             configure a unique MPLS-TP ITU-T Country Code (CC)
             either for Ingress or Egress LSR ID.

             The CC is a string of two alphabetic characters
             represented with uppercase letters (i.e., A-Z)."
         ::= { mplsTunnelExtNodeIccMapEntry 1 }

         mplsTunnelExtNodeIccMapIccId OBJECT-TYPE
              SYNTAX      MplsIccId
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This object allows the operator or service provider
                  to configure a unique MPLS-TP ITU-T Carrier
                  Code (ICC) either for Ingress or Egress LSR ID.

                  The ICC is a string of one to six characters, each
                  character being either alphabetic (i.e., A-Z) or
                  numeric (i.e., 0-9) characters.  Alphabetic characters
                  in the ICC should be represented with uppercase
                  letters."
         ::= { mplsTunnelExtNodeIccMapEntry 2 }

         mplsTunnelExtNodeIccMapNodeId  OBJECT-TYPE
            SYNTAX        MplsNodeId
            MAX-ACCESS    not-accessible
            STATUS        current
            DESCRIPTION
              "This object indicates the Node_ID within the
               ICC-based operator."

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         ::= { mplsTunnelExtNodeIccMapEntry 3}

    mplsTunnelExtNodeIccMapLocalId  OBJECT-TYPE
       SYNTAX        MplsExtendedTunnelId
       MAX-ACCESS    read-only
       STATUS        current
       DESCRIPTION
         "This object contains an ICC-based local identifier
          that is defined in mplsTunnelExtNodeConfigTable."
    ::= { mplsTunnelExtNodeIccMapEntry 4 }

 -- End MPLS Transport Profile Node ICC-based table

 -- Start of MPLS Tunnel table extension

   mplsTunnelExtTable OBJECT-TYPE
     SYNTAX        SEQUENCE OF MplsTunnelExtEntry
     MAX-ACCESS    not-accessible
     STATUS        current
     DESCRIPTION
       "This table represents extensions to mplsTunnelTable
        in order to support MPLS-TP Tunnels.

        As per MPLS-TP Identifiers (RFC 6370), LSP_ID for IP-based
        co-routed bidirectional tunnel:

        A1-{Global_ID::Node_ID::Tunnel_Num}::Z9-{Global_ID::
        Node_ID::Tunnel_Num}::LSP_Num

        LSP_ID for IP based associated bidirectional tunnel:
        A1-{Global_ID::Node_ID::Tunnel_Num::LSP_Num}::
        Z9-{Global_ID::Node_ID::Tunnel_Num::LSP_Num}

        mplsTunnelTable is reused for forming the LSP_ID
        as follows:

        Source Tunnel_Num is mapped with mplsTunnelIndex,
        Source Node_ID is mapped with
        mplsTunnelIngressLSRId, Destination Node_ID is
        mapped with mplsTunnelEgressLSRId, and LSP_Num is mapped with
        mplsTunnelInstance.

        Source Global_ID::Node_ID and/or ICC_Operator_ID::Node_ID and
        Destination Global_ID::Node_ID and/or ICC_Operator_ID::Node-ID
        are maintained in the mplsTunnelExtNodeConfigTable.
        mplsTunnelExtNodeConfigLocalId is used to create an entry
        in mplsTunnelTable."

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     REFERENCE
           "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370."
     ::= { mplsTeExtObjects 5 }

    mplsTunnelExtEntry OBJECT-TYPE
    SYNTAX        MplsTunnelExtEntry
    MAX-ACCESS    not-accessible
    STATUS        current
    DESCRIPTION
          "An entry in this table represents additional MPLS-TP-
           specific tunnel configurations."
    INDEX {
      mplsTunnelIndex,
      mplsTunnelInstance,
      mplsTunnelIngressLSRId,
      mplsTunnelEgressLSRId
     }
     ::= { mplsTunnelExtTable 1 }

    MplsTunnelExtEntry ::= SEQUENCE {
         mplsTunnelExtOppositeDirPtr          RowPointer,
         mplsTunnelExtOppositeDirTnlValid     TruthValue,
         mplsTunnelExtDestTnlIndex            MplsTunnelIndex,
         mplsTunnelExtDestTnlLspIndex         MplsTunnelInstanceIndex,
         mplsTunnelExtDestTnlValid            TruthValue,
         mplsTunnelExtIngressLSRLocalIdValid  TruthValue,
         mplsTunnelExtEgressLSRLocalIdValid   TruthValue
    }

    mplsTunnelExtOppositeDirPtr  OBJECT-TYPE
       SYNTAX        RowPointer
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
          "This object points to the opposite-direction tunnel entry."
    ::= { mplsTunnelExtEntry 1 }

    mplsTunnelExtOppositeDirTnlValid  OBJECT-TYPE
       SYNTAX        TruthValue
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
          "Denotes whether or not this tunnel uses
           mplsTunnelExtOppositeDirPtr for identifying the opposite-
           direction tunnel information.  Note that if this variable
           is set to true, then the mplsTunnelExtOppositeDirPtr should
           point to the first accessible row of the valid opposite-
           direction tunnel."

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       DEFVAL { false }
         ::= { mplsTunnelExtEntry 2 }

    mplsTunnelExtDestTnlIndex  OBJECT-TYPE
       SYNTAX        MplsTunnelIndex
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
          "This object is applicable only for the bidirectional
           tunnel that has the forward and reverse LSPs in the
           different tunnel entries.

           The values of this object and the
           mplsTunnelExtDestTnlLspIndex object together can be used
           to identify an opposite-direction LSP, i.e., if the
           mplsTunnelIndex and mplsTunnelInstance hold the value
           for forward LSP, this object and
           mplsTunnelExtDestTnlLspIndex can be used to retrieve
           the reverse-direction LSP and vice versa.

           This object and mplsTunnelExtDestTnlLspIndex values
           provide the first two indices of tunnel entry, and
           the remaining indices can be derived as follows:
           the Ingress and Egress Identifiers should be
           swapped in order to index the other direction tunnel."
          ::= { mplsTunnelExtEntry 3 }

    mplsTunnelExtDestTnlLspIndex  OBJECT-TYPE
       SYNTAX        MplsTunnelInstanceIndex
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
          "This object is applicable only for the bidirectional
           tunnel that has the forward and reverse LSPs in the
           different tunnel entries.  This object holds
           the instance index of the opposite-direction tunnel."
          ::= { mplsTunnelExtEntry 4 }

    mplsTunnelExtDestTnlValid  OBJECT-TYPE
       SYNTAX        TruthValue
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
          "Denotes whether or not this tunnel uses
           mplsTunnelExtDestTnlIndex and
           mplsTunnelExtDestTnlLspIndex for identifying
           the opposite-direction tunnel information.  Note that if
           this variable is set to true, then the

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           mplsTunnelExtDestTnlIndex and
           mplsTunnelExtDestTnlLspIndex objects should have
           the valid opposite-direction tunnel indices."
       DEFVAL { false }
         ::= { mplsTunnelExtEntry 5 }

    mplsTunnelExtIngressLSRLocalIdValid OBJECT-TYPE
       SYNTAX        TruthValue
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
        "This object denotes whether the mplsTunnelIngressLSRId
         contains the local value that is used to reference
         the complete Ingress Global_ID::Node_ID or ICC_Operator_ID
         from the mplsTunnelExtNodeConfigTable.

         If this object is set to FALSE, mplsTunnelExtNodeConfigTable
         will not contain an entry to reference the local identifier
         with Global_ID::Node_ID or ICC_Operator_ID::Node_ID value.

         This object is set to FALSE for legacy implementations like
         MPLS TE tunnels where mplsTunnelIngressId itself provides
         the complete Ingress LSR ID."
       REFERENCE
         "MPLS-TE-STD-MIB (RFC 3812), Section 11.
          mplsTunnelIngressLSRId object in mplsTunnelTable."
       DEFVAL { false }
         ::= { mplsTunnelExtEntry 6 }

    mplsTunnelExtEgressLSRLocalIdValid OBJECT-TYPE
       SYNTAX        TruthValue
       MAX-ACCESS    read-create
       STATUS        current
       DESCRIPTION
        "This object denotes whether the mplsTunnelEgressLSRId
         contains the local value, which is used to reference
         the complete Egress Global_ID::Node_ID or
         ICC_Operator_ID::Node_ID from
         the mplsTunnelExtNodeConfigTable.

         If this object is set to FALSE, mplsTunnelExtNodeConfigTable
         will not contain an entry to reference the local identifier
         with Global_ID::Node_ID or ICC_Operator_ID::Node_ID value.

         This object is set to FALSE for legacy implementations like
         MPLS TE tunnels where mplsTunnelEgressId itself provides
         the complete Egress LSR ID."

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       REFERENCE
         "MPLS-TE-STD-MIB (RFC 3812), Section 11.
          mplsTunnelEgressLSRId object in mplsTunnelTable."
       DEFVAL { false }
         ::= { mplsTunnelExtEntry 7 }

    -- End of MPLS Tunnel table extension

   -- Module compliance.

   mplsTeExtCompliances
      OBJECT IDENTIFIER ::= { mplsTeExtConformance 1 }

   mplsTeExtGroups
      OBJECT IDENTIFIER ::= { mplsTeExtConformance 2 }

   -- Compliance requirement for fully compliant implementations.

   mplsTeExtModuleFullCompliance MODULE-COMPLIANCE
      STATUS current
      DESCRIPTION
           "Compliance statement for agents that provide full
            support the MPLS-TE-EXT-STD-MIB module."

      MODULE -- this module

         -- The mandatory group has to be implemented by all
         -- LSRs that originate/terminate MPLS-TP Tunnels.
         -- In addition, depending on the type of tunnels
         -- supported, other groups become mandatory as
         -- explained below.

         MANDATORY-GROUPS    {
            mplsTunnelExtGroup
         }

         GROUP mplsTunnelExtIpOperatorGroup
         DESCRIPTION
             "This group is mandatory for devices that support
              configuration of IP-based identifier tunnels."

         GROUP mplsTunnelExtIccOperatorGroup
         DESCRIPTION
             "This group is mandatory for devices that support
              configuration of ICC based tunnels."

          ::= { mplsTeExtCompliances 1 }

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   -- Compliance requirement for read-only implementations.

   mplsTeExtModuleReadOnlyCompliance MODULE-COMPLIANCE
      STATUS current
      DESCRIPTION
          "Compliance statement for agents that only provide
           read-only support for the MPLS-TE-EXT-STD-MIB module."

      MODULE -- this module

   MANDATORY-GROUPS    {
      mplsTunnelExtGroup
   }

   GROUP mplsTunnelExtIpOperatorGroup
   DESCRIPTION
       "This group is mandatory for devices that support
        configuration of IP-based identifier tunnels."

   GROUP mplsTunnelExtIccOperatorGroup
   DESCRIPTION
       "This group is mandatory for devices that support
        configuration of ICC-based tunnels."

   -- mplsTunnelExtTable

   OBJECT      mplsTunnelExtOppositeDirPtr
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtOppositeDirTnlValid
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtDestTnlIndex
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtDestTnlLspIndex
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

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   OBJECT      mplsTunnelExtDestTnlValid
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtIngressLSRLocalIdValid
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtEgressLSRLocalIdValid
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtNodeConfigGlobalId
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtNodeConfigNodeId
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtNodeConfigStorageType
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtNodeConfigRowStatus
   SYNTAX      RowStatus { active(1) }
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtNodeConfigCcId
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

   OBJECT      mplsTunnelExtNodeConfigIccId
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

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   OBJECT      mplsTunnelExtNodeConfigIccValid
   MIN-ACCESS  read-only
   DESCRIPTION
         "Write access is not required."

        ::= { mplsTeExtCompliances 2 }

     -- Units of conformance.

     mplsTunnelExtGroup OBJECT-GROUP
        OBJECTS {
          mplsTunnelExtOppositeDirPtr,
          mplsTunnelExtOppositeDirTnlValid,
          mplsTunnelExtDestTnlIndex,
          mplsTunnelExtDestTnlLspIndex,
          mplsTunnelExtDestTnlValid,
          mplsTunnelExtIngressLSRLocalIdValid,
          mplsTunnelExtEgressLSRLocalIdValid
       }

      STATUS  current
      DESCRIPTION
           "Necessary, but not sufficient, set of objects to
             implement tunnels.  In addition, depending on the
             operating environment, the following groups are
             mandatory."
      ::= { mplsTeExtGroups 1 }

   mplsTunnelExtIpOperatorGroup  OBJECT-GROUP
      OBJECTS { mplsTunnelExtNodeConfigLocalIdNext,
                mplsTunnelExtNodeConfigGlobalId,
                mplsTunnelExtNodeConfigNodeId,
                mplsTunnelExtNodeIpMapLocalId,
                mplsTunnelExtNodeConfigStorageType,
                mplsTunnelExtNodeConfigRowStatus
      }
      STATUS  current
      DESCRIPTION
           "Object(s) needed to implement IP-compatible tunnels."
      ::= { mplsTeExtGroups 2 }

   mplsTunnelExtIccOperatorGroup  OBJECT-GROUP
      OBJECTS { mplsTunnelExtNodeConfigLocalIdNext,
                mplsTunnelExtNodeConfigCcId,
                mplsTunnelExtNodeConfigIccId,
                mplsTunnelExtNodeConfigNodeId,
                mplsTunnelExtNodeConfigIccValid,
                mplsTunnelExtNodeIccMapLocalId,

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                mplsTunnelExtNodeConfigStorageType,
                mplsTunnelExtNodeConfigRowStatus
      }
      STATUS  current
      DESCRIPTION
           "Object(s) needed to implement ICC-based tunnels."
      ::= { mplsTeExtGroups 3 }

   -- MPLS-TE-EXT-STD-MIB module ends
   END

14.  Security Considerations

   This document follows the security considerations mentioned in
   Section 12 of [RFC3812].  These security considerations are also
   applicable to the MIB objects and tables defined in this document,
   which are identified as below.

      - The common objects mplsIdGlobalId, mplsIdNodeId, mplsIdCc, and
        mplsIdIcc are used to define the identity of an MPLS-TP node for
        OAM purposes.  If write-access is allowed to these objects it
        offers the possibility for incorrect values to be entered that
        will confuse the information returned by OAM functions and
        possibly prevent OAM from operating correctly.  Furthermore,
        there is the possibility of inducing one node to impersonate
        another with confusing results.

      - mplsTunnelExtNodeConfigTable, mplsTunnelExtTable and
        mplsXCExtTable collectively contain objects to provision MPLS-TP
        Tunnels, tunnel hops, and tunnel resources.

   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:

      - mplsTunnelExtNodeConfigTable, mplsTunnelExtTable, and
        mplsXCExtTable collectively show the characteristics of the
        MPLS-TP tunnel network topology.  If an Administrator does not
        want to reveal this information, then these tables should be
        considered sensitive/vulnerable.

   SNMP versions prior to SNMPv3 did not include adequate security.
   Even if the network itself is secure (for example by using IPsec),
   there is no control as to who on the secure network is allowed to

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   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.

15.  IANA Considerations

   As described in [RFC4221] and [RFC6639], and as requested in the
   MPLS-TC-STD-MIB [RFC3811], MPLS-related Standards Track MIB modules
   should be rooted under the mplsStdMIB subtree.  There are four MPLS
   MIB modules contained in this document; each of the following
   subsections lists a new assignment made by IANA under the mplsStdMIB
   subtree.  New assignments can only be made via a Standards Action as
   specified in [RFC5226].

15.1.  IANA Considerations for MPLS-TC-EXT-STD-MIB

   IANA has assigned the OID { mplsStdMIB 17 } to the
   MPLS-TC-EXT-STD-MIB module specified in this document.

15.2.  IANA Considerations for MPLS-ID-STD-MIB

   IANA has assigned the OID { mplsStdMIB 18 } to the MPLS-ID-STD-MIB
   module specified in this document.

15.3.  IANA Considerations for MPLS-LSR-EXT-STD-MIB

   IANA has assigned the OID { mplsStdMIB 19 } to the
   MPLS-LSR-EXT-STD-MIB module specified in this document.

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15.4.  IANA Considerations for MPLS-TE-EXT-STD-MIB

   IANA has assigned the OID { mplsStdMIB 20 } to the
   MPLS-TE-EXT-STD-MIB module specified in this document.

16.  References

16.1.  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>.

   [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., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Conformance Statements for SMIv2",
              STD 58, RFC 2580, April 1999,
              <http://www.rfc-editor.org/info/rfc2580>.

   [RFC3031]  Rosen, E., Viswanathan, A., and R. Callon, "Multiprotocol
              Label Switching Architecture", RFC 3031, January 2001,
              <http://www.rfc-editor.org/info/rfc3031>.

   [RFC3289]  Baker, F., Chan, K., and A. Smith, "Management Information
              Base for the Differentiated Services Architecture", RFC
              3289, May 2002, <http://www.rfc-editor.org/info/rfc3289>.

   [RFC3811]  Nadeau, T., Ed., and J. Cucchiara, Ed., "Definitions of
              Textual Conventions (TCs) for Multiprotocol Label
              Switching (MPLS) Management", RFC 3811, June 2004,
              <http://www.rfc-editor.org/info/rfc3811>.

   [RFC3812]  Srinivasan, C., Viswanathan, A., and T. Nadeau,
              "Multiprotocol Label Switching (MPLS) Traffic Engineering
              (TE) Management Information Base (MIB)", RFC 3812, June
              2004, <http://www.rfc-editor.org/info/rfc3812>.

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   [RFC3813]  Srinivasan, C., Viswanathan, A., and T. Nadeau,
              "Multiprotocol Label Switching (MPLS) Label Switching
              Router (LSR) Management Information Base (MIB)", RFC 3813,
              June 2004, <http://www.rfc-editor.org/info/rfc3813>.

   [RFC4802]  Nadeau, T., Ed., and A. Farrel, Ed., "Generalized
              Multiprotocol Label Switching (GMPLS) Traffic Engineering
              Management Information Base", RFC 4802, February 2007,
              <http://www.rfc-editor.org/info/rfc4802>.

   [RFC6370]  Bocci, M., Swallow, G., and E. Gray, "MPLS Transport
              Profile (MPLS-TP) Identifiers", RFC 6370, September 2011,
              <http://www.rfc-editor.org/info/rfc6370>.

   [RFC6923]  Winter, R., Gray, E., van Helvoort, H., and M. Betts,
              "MPLS Transport Profile (MPLS-TP) Identifiers Following
              ITU-T Conventions", RFC 6923, May 2013,
              <http://www.rfc-editor.org/info/rfc6923>.

   [T.50]     ITU-T, "International Reference Alphabet (IRA) (Formerly
              International Alphabet No. 5 or IA5) - Information
              technology - 7-bit coded character set for information
              exchange", ITU-T Recommendation T.50, September 1992.

16.2.  Informative References

   [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>.

   [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>.

   [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>.

   [RFC4221]  Nadeau, T., Srinivasan, C., and A. Farrel, "Multiprotocol
              Label Switching (MPLS) Management Overview", RFC 4221,
              November 2005, <http://www.rfc-editor.org/info/rfc4221>.

   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
              IANA Considerations Section in RFCs", BCP 26, RFC 5226,
              May 2008, <http://www.rfc-editor.org/info/rfc5226>.

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   [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>.

   [RFC5654]  Niven-Jenkins, B., Ed., Brungard, D., Ed., Betts, M., Ed.,
              Sprecher, N., and S. Ueno, "Requirements of an MPLS
              Transport Profile", RFC 5654, September 2009,
              <http://www.rfc-editor.org/info/rfc5654>.

   [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>.

   [RFC6639]  King, D., Ed., and M. Venkatesan, Ed., "Multiprotocol
              Label Switching Transport Profile (MPLS-TP) MIB-Based
              Management Overview", RFC 6639, June 2012,
              <http://www.rfc-editor.org/info/rfc6639>.

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Acknowledgments

   The authors would like to thank Francesco Fondelli, Josh Littlefield,
   Agrahara Kiran Koushik, Metrri Jain, Muly Ilan, Randy Presuhn, Elwyn
   Davies, Tom Taylor, and Pete Resnick for their valuable reviews and
   comments.  A special thanks to Joan Cucchiara and Adrian Farrel for
   really getting the MIB modules into shape.

Authors' Addresses

   Venkatesan Mahalingam
   Dell Inc.
   5450 Great America Parkway,
   Santa Clara, CA 95054
   United States
   EMail: venkat.mahalingams@gmail.com

   Sam Aldrin
   Huawei Technologies
   2330 Central Express Way,
   Santa Clara, CA 95051
   United States
   EMail:  aldrin.ietf@gmail.com

   Thomas D. Nadeau
   Brocade
   EMail: tnadeau@lucidvision.com

   Kannan KV Sampath
   Redeem
   India
   EMail: kannankvs@gmail.com