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Versions: (draft-cucchiara-mpls-ldp-mib) 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 RFC 3815

                   Definitions of Managed Objects for
 the Multiprotocol Label Switching, Label Distribution Protocol (LDP)

                              August 1998


                    <draft-ietf-mpls-ldp-mib-00.txt>

                             Joan Cucchiara
                              Bay Networks
                         joanc@baynetworks.com

                             Hans Sjostrand
                                Ericsson
                     hans.sjostrand@etx.ericsson.se

                            James V. Luciani
                              Bay Networks
                        luciani@baynetworks.com





Status of this Memo

   This document is an Internet-Draft.  Internet-Drafts are working
   documents of the Internet Engineering Task Force (IETF), its Areas,
   and its Working Groups.  Note that other groups may also distribute
   working documents as Internet-Drafts.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as a "work in progress".

   To view the entire list of current Internet-Drafts, please check the
   "1id-abstracts.txt" listing contained in the Internet-Drafts Shadow
   Directories on ftp.is.co.za (Africa), ftp.nordu.net (Northern
   Europe), ftp.nis.garr.it (Southern Europe), munnari.oz.au (Pacific
   Rim), ftp.ietf.org (US East Coast), or ftp.isi.edu (US West Coast).


Copyright Notice

   Copyright (C) The Internet Society (1998).  All Rights Reserved.










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Abstract

   This memo defines an experimental portion of the Management
   Information Base (MIB) for use with network management protocols in
   the Internet community.  In particular, it describes managed objects
   for the Multiprotocol Label Switching, Label Distribution Protocol
   (LDP) as defined in [17].

   This memo does not specify a standard for the Internet community.


1.  The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

    o   An overall architecture, described in RFC 2271 [1].

    o   Mechanisms for describing and naming objects and events for the
        purpose of management. The first version of this Structure of
        Management Information (SMI) is called SMIv1 and described in
        RFC 1155 [2], RFC 1212 [3] and RFC 1215 [4]. The second version,
        called SMIv2, is described in RFC 1902 [5], RFC 1903 [6] and RFC
        1904 [7].

    o   Message protocols for transferring management information. The
        first version of the SNMP message protocol is called SNMPv1 and
        described in RFC 1157 [8]. A second version of the SNMP message
        protocol, which is not an Internet standards track protocol, is
        called SNMPv2c and described in RFC 1901 [9] and RFC 1906 [10].
        The third version of the message protocol is called SNMPv3 and
        described in RFC 1906 [10], RFC 2272 [11] and RFC 2274 [12].

    o   Protocol operations for accessing management information. The
        first set of protocol operations and associated PDU formats is
        described in RFC 1157 [8]. A second set of protocol operations
        and associated PDU formats is described in RFC 1905 [13].

    o   A set of fundamental applications described in RFC 2273 [14] and
        the view-based access control mechanism described in RFC 2275
        [15].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the mechanisms defined in the SMI.

   This memo specifies a MIB module that is compliant to the SMIv2. A





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   MIB conforming to the SMIv1 can be produced through the appropriate
   translations. The resulting translated MIB must be semantically
   equivalent, except where objects or events are omitted because no
   translation is possible (use of Counter64). Some machine readable
   information in SMIv2 will be converted into textual descriptions in
   SMIv1 during the translation process. However, this loss of machine
   readable information is not considered to change the semantics of the
   MIB.


1.1.  Object Definitions

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the subset of Abstract Syntax Notation One (ASN.1)
   defined in the SMI.  In particular, each object type is named by an
   OBJECT IDENTIFIER, an administratively assigned name.  The object
   type together with an object instance serves to uniquely identify a
   specific instantiation of the object.  For human convenience, we
   often use a textual string, termed the descriptor, to also refer to
   the object type.






























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2.  Structure of the MIB

   The following aspects are not addressed in this document: Interfaces
   with respect to the IFMIB (e.g. is ldp an interface in the sense of
   being stacked onto of the data link layer, and its relationship to
   the network layer), VPN issues (i.e. potential MIB objects such as
   the VPN Identifier are not included at this time), and lastly,
   multicast issues are not discussed.

   Some of these issues need further clarification before adding to this
   MIB.

   Currently, there is two groups.  The MPLS LDP General Group and the
   MPLS LDP Notifications Group.


2.1.  The MPLS LDP General Group

   This group contains information about the specific LDP Entities which
   are associated with this agent. Each LSR must have one LDP Entity.


2.1.1.  The Label Distribution Protocol's Entity Table

   The LDP Entity Table represents the LDP Entities which exist on a
   single Label Switch Router (LSR).  The LDP Entity performs the LDP
   protocol.  There must be at least one LDP Entity for the LSR to
   support LDP.

   Each entry/row in this table represents a single LDP Entity.


2.1.2.  The Label Distribution Protocol's Entity Statistics Table

   The LDP Entity Statistics Table will maintain counters related to an
   LDP Entity.  This Table should be a read-only table which contains
   statistical information.

   Each row in this table will be related to a single LDP Entity.


2.1.3.  The LDP Peer Table

   The LDP Peer Table contains information about LDP Peers.  Each row in
   this table represents an LDP Peer which is known to an LDP Entity.






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2.1.4.  The LDP Sessions Table

   Each entry in this table represents a session between an LDP Entity
   and a Peer.



2.1.5.  The LDP Adjacencies Table

   This is a table of all adjacencies between all LPD Entities and all
   LDP Peers.  A Session may have one or more adjacencies.


2.1.6.  The LDP Label Information Base (LIB) Table

   TBD. Some potential objects: incoming label, outgoing label, and the
   mid.


2.2.  The LDP Notifications Group



2.2.1.  LDP Notifications

   Currently, there is one notification which will be sent when an LDP
   attempts to initialize the same session beyond the configured
   threshold.


3.  MPLS Label Distribution Protocol MIB Definitions

     MPLS-LDP-MIB DEFINITIONS ::= BEGIN

     IMPORTS
         MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
         experimental,
         Integer32, Counter32, Unsigned32
             FROM SNMPv2-SMI
         MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
             FROM SNMPv2-CONF

         TEXTUAL-CONVENTION, TruthValue, RowStatus, TimeInterval
             FROM SNMPv2-TC

         ;





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     mplsLdpMIB MODULE-IDENTITY
         LAST-UPDATED "9808261200Z"  -- August 26, 1998
         ORGANIZATION "Multiprotocol Label Switching (mpls) Working Group"
         CONTACT-INFO
             "Joan Cucchiara (joanc@baynetworks.com)
              Bay Networks

              Hans Sjostrand (hans.sjostrand@etx.ericsson.se)
              Ericsson

              James V. Luciani (luciani@baynetworks.com)
              Bay Networks"
         DESCRIPTION
             "This MIB contains managed object definitions for the
             Multiprotocol Label Switching, Label Distribution
             Protocol, LDP, as defined in draft-ietf-mpls-ldp-01.txt."
         ::= { experimental 9876 } -- to be assigned

     --********************************************************************
     -- MPLS LDP Textual Conventions
     --********************************************************************

     MplsLdpIANAAddrFamily ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
             "An address family. Values are defined in Assigned Numbers,
             RFC1700. Note that not all these values make sense in all
             contexts where this type is used in this MIB, but they are
             included for completeness."
         REFERENCE
             "Assigned Numbers, RFC1700, ADDRESS FAMILY NUMBERS"
         SYNTAX      INTEGER {
                         other(0),
                         ipV4(1),
                         ipV6(2),
                         nsap(3),
                         hdlc(4),
                         bbn1822(5),
                         ieee802(6),
                         e163(7),
                         e164(8),
                         f69(9),
                         x121(10),
                         ipx(11),
                         appleTalk(12),
                         decnetIV(13),
                         banyanVines(14),





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                         e164WithNsap(15)
                     }

     MplsLdpGenAddr ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
             "The value of an network layer or data link layer address."
         SYNTAX      OCTET STRING (SIZE (0..60))

     AtmVpIdentifier ::= TEXTUAL-CONVENTION
          STATUS      current
          DESCRIPTION
              "The VPI value for a VPL. The value VPI=0 is not
              used for a VPL not associated with a VCL. For ATM
              UNIs supporting VPCs the VPI value ranges from 1
              to 255. For ATM UNIs supporting VCCs the VPI value
              ranges from 0 to 255.  The maximum VPI value
              cannot exceed the value allowable by
              atmInterfaceMaxVpiBits defined in ATM-MIB."
          SYNTAX Unsigned32 (0..4095)

     AtmVcIdentifier ::= TEXTUAL-CONVENTION
          STATUS      current
          DESCRIPTION
              "The VCI value for a VCL. The maximum VCI value
              cannot exceed the value allowable by
              atmInterfaceMaxVciBits defined in ATM-MIB."
          SYNTAX Unsigned32 (0..65535)

     -- Top-level structure of the MIB

     mplsLdpObjects       OBJECT IDENTIFIER ::= { mplsLdpMIB 1 }
     mplsLdpNotifications OBJECT IDENTIFIER ::= { mplsLdpMIB 2 }
     mplsLdpConformance   OBJECT IDENTIFIER ::= { mplsLdpMIB 3 }

     --********************************************************************
     -- MPLS LDP Objects
     --********************************************************************

     mplsLdpEntityObjects OBJECT IDENTIFIER ::= { mplsLdpObjects 1 }

     --
     -- The MPLS Label Distribution Protocol Entity Table
     --

     mplsLdpEntityTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF MplsLdpEntityEntry





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         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "This table contains information about the
             MPLS Label Distribution Protocol Entities which
             exist on this LSR."
         ::= { mplsLdpEntityObjects 1 }

     mplsLdpEntityEntry OBJECT-TYPE
         SYNTAX      MplsLdpEntityEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "An entry in this table represents an LDP entity.
             An entry can be created by a network administrator
             or by an SNMP agent as instructed by LDP."
         INDEX       {  mplsLdpEntityIndex  }
         ::= { mplsLdpEntityTable 1 }

     MplsLdpEntityEntry ::= SEQUENCE {
         mplsLdpEntityIndex                         Integer32,
         mplsLdpEntityConfId                        OCTET STRING,
         mplsLdpEntityConfDefVpi                    AtmVpIdentifier,
         mplsLdpEntityConfDefVci                    AtmVcIdentifier,
         mplsLdpEntityConfWellKnownDiscoveryPort    Unsigned32,
         mplsLdpEntityConfMtu                       Integer32,
         mplsLdpEntityConfKeepAliveHoldTimer        Integer32,
         mplsLdpEntityLoopDetection                 TruthValue,
         mplsLdpEntityLoopPrevention                TruthValue,
         mplsLdpEntityFailedInitSessionThreshold    Integer32,
         mplsLdpEntityRowStatus                     RowStatus
     }

     mplsLdpEntityIndex OBJECT-TYPE
         SYNTAX      Integer32 (1..2147483647)
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "A locally arbitrary, but unique identifier
             for this entity.  An agent assigns a unique
             identifier when the row is created."
         ::= { mplsLdpEntityEntry 1 }

     mplsLdpEntityConfId OBJECT-TYPE
         SYNTAX      OCTET STRING (SIZE (6))
         MAX-ACCESS  read-create
         STATUS      current





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         DESCRIPTION
             "The LDP identifier of this LDP Entity."
         ::= { mplsLdpEntityEntry 2 }

     mplsLdpEntityConfDefVpi OBJECT-TYPE
         SYNTAX      AtmVpIdentifier
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The Default VPI value used in the label for the default
             VPI."
         ::= { mplsLdpEntityEntry 3 }

     mplsLdpEntityConfDefVci OBJECT-TYPE
         SYNTAX      AtmVcIdentifier
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The Default VCI value used in the label for the default
             VCI."
         ::= { mplsLdpEntityEntry  4 }

     mplsLdpEntityConfWellKnownDiscoveryPort OBJECT-TYPE
         SYNTAX      Unsigned32
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The well known LDP Discovery Port."
         ::= { mplsLdpEntityEntry 5 }

     mplsLdpEntityConfMtu OBJECT-TYPE
         SYNTAX      Integer32 (0..65535)
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The maximum transmission unit (MTU) that was configured
             for this entity."
         ::= { mplsLdpEntityEntry 6 }

     mplsLdpEntityConfKeepAliveHoldTimer OBJECT-TYPE
         SYNTAX      Integer32 (1..65535)
         UNITS       "seconds"
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The two octet value which is the proposed keep alive hold
             timer for this LDP Entity."





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         ::= { mplsLdpEntityEntry 7 }

     mplsLdpEntityLoopDetection OBJECT-TYPE
         SYNTAX      TruthValue
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "A value of true (1) indicates that Loop Detection is 'on'
             for this entity, a value of false (2) indicates that Loop
             Detection is off."
         ::= { mplsLdpEntityEntry 8 }

     mplsLdpEntityLoopPrevention OBJECT-TYPE
         SYNTAX      TruthValue
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "A value of true(1), indicates that this LDP entity has
             loop prevention via Diffusion on.  A value of false(2),
             indicates that loop prevention via Diffusion is off."
         ::= { mplsLdpEntityEntry 9 }

     mplsLdpEntityFailedInitSessionThreshold OBJECT-TYPE
         SYNTAX      Integer32
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "When attempting to establish a session with a
             given Peer, the given LDP Entity should
             send out a notification when exceeding this threshold.
             A value of 0 (zero) for this object
             indicates that the threshold is infinity.
             In other words, a notification will not
             be sent if the value of this object is 0 (zero)."
         ::= { mplsLdpEntityEntry 10 }


     mplsLdpEntityRowStatus OBJECT-TYPE
         SYNTAX      RowStatus
         MAX-ACCESS  read-create
         STATUS      current
              DESCRIPTION
                  "An object that allows entries in this table to be created
                  and deleted using the RowStatus convention."
              REFERENCE
                  "Textual Conventions for Version 2 of the Simple Network
                  Management Protocol (SNMPv2), RFC1903."





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         ::= { mplsLdpEntityEntry 11 }

     --
     -- The MPLS LDP Entity Configurable ATM Label Range Table
     --

     mplsLdpEntityConfAtmLabelRangeTable OBJECT-TYPE
         SYNTAX SEQUENCE OF MplsLdpEntityConfAtmLabelRangeEntry
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "The MPLS LDP Entity Configurable ATM Label Range Table.
             The purpose of this table is to provide a mechanism
             for specifying a contiguous range of vpi's with a contiguous
             range of vci's, or a 'label range' for LDP Entities.
             LDP Entities which use ATM must have at least one
             entry in this table."
         ::= { mplsLdpEntityObjects 2 }

     mplsLdpEntityConfAtmLabelRangeEntry OBJECT-TYPE
         SYNTAX MplsLdpEntityConfAtmLabelRangeEntry
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "A row in the LDP Entity Configurable ATM Label Range Table.
             One entry in this table contains information
             on a single range of labels represented by
             the configured Upper and Lower Bounds VPI/VCI pairs.

             NOTE:  The ranges for a specific LDP Entity
             are UNIQUE and non-overlapping.  For example,
             for a specific LDP Entity index, there could
             be one entry having ConfLowerBound vpi/vci == 0/32, and
             ConfUpperBound vpi/vci == 0/100, and a second entry for this
             same interface with ConfLowerBound vpi/vci == 0/101 and
             ConfUpperBound vpi/vci == 0/200.  However, there could not be
             a third entry with ConfLowerBound vpi/vci == 0/200 and
             ConfUpperBound vpi/vci == 0/300 because this label range overlaps
             with the second entry (i.e. both entries now have 0/200).

             A row will not be created unless a unique and non-overlapping
             range is specified.  Thus, row creation implies a one-shot
             row creation of LDP EntityIndex and ConfLowerBound vpi/vci and
             ConfUpperBound vpi/vci.  At least one label range entry
             for a specific LDP Entity MUST include the default VPI/VCI
             values denoted in the LDP Entity Table."
         INDEX { mplsLdpEntityIndex,





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                 mplsLdpEntityConfAtmLabelRangeLowerBoundVPI,
                 mplsLdpEntityConfAtmLabelRangeLowerBoundVCI  }
         ::= { mplsLdpEntityConfAtmLabelRangeTable 1 }

     MplsLdpEntityConfAtmLabelRangeEntry ::= SEQUENCE {
         mplsLdpEntityConfAtmLabelRangeLowerBoundVPI      AtmVpIdentifier,
         mplsLdpEntityConfAtmLabelRangeLowerBoundVCI      AtmVcIdentifier,
         mplsLdpEntityConfAtmLabelRangeUpperBoundVPI      AtmVpIdentifier,
         mplsLdpEntityConfAtmLabelRangeUpperBoundVCI      AtmVcIdentifier,
         mplsLdpEntityConfAtmLabelRangeRowStatus          RowStatus
     }

     mplsLdpEntityConfAtmLabelRangeLowerBoundVPI OBJECT-TYPE
         SYNTAX AtmVpIdentifier
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "The minimum VPI number configured for this range."
         ::= { mplsLdpEntityConfAtmLabelRangeEntry 1 }

     mplsLdpEntityConfAtmLabelRangeLowerBoundVCI OBJECT-TYPE
         SYNTAX AtmVcIdentifier
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "The minimum VCI number configured for this range."
         ::= { mplsLdpEntityConfAtmLabelRangeEntry 2 }

     mplsLdpEntityConfAtmLabelRangeUpperBoundVPI OBJECT-TYPE
         SYNTAX AtmVpIdentifier
         MAX-ACCESS read-create
         STATUS current
         DESCRIPTION
             "The maximum VPI number configured for this range."
         ::= { mplsLdpEntityConfAtmLabelRangeEntry 3 }

     mplsLdpEntityConfAtmLabelRangeUpperBoundVCI OBJECT-TYPE
         SYNTAX AtmVcIdentifier
         MAX-ACCESS read-create
         STATUS current
         DESCRIPTION
             "The maximum VCI number configured for this range."
        ::= { mplsLdpEntityConfAtmLabelRangeEntry 4 }

     mplsLdpEntityConfAtmLabelRangeRowStatus OBJECT-TYPE
         SYNTAX RowStatus
         MAX-ACCESS read-create





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         STATUS current
              DESCRIPTION
                  "An object that allows entries in this table to be created
                  and deleted using the RowStatus convention."
              REFERENCE
                  "Textual Conventions for Version 2 of the Simple Network
                  Management Protocol (SNMPv2), RFC1903."
         ::= { mplsLdpEntityConfAtmLabelRangeEntry 5 }


     --
     -- The MPLS LDP Entity Statistics Table
     --

     mplsLdpEntityStatsTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF MplsLdpEntityStatsEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "This table is a read-only table which augments
             the MplsLdpConfEntityTable.  The purpose of this
             table is to keep statistical information about
             the LDP Entities on the LSR."
         ::= { mplsLdpEntityObjects 3 }

     mplsLdpEntityStatsEntry OBJECT-TYPE
         SYNTAX      MplsLdpEntityStatsEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "A row in this table contains statistical information
             about an LDP Entity."
         AUGMENTS       {   mplsLdpEntityEntry  }
         ::= { mplsLdpEntityStatsTable 1 }

     MplsLdpEntityStatsEntry ::= SEQUENCE {
         mplsLdpEstablishedSessions    Counter32,
         mplsLdpAttemptedSessions      Counter32
     }

     mplsLdpEstablishedSessions OBJECT-TYPE
         SYNTAX      Counter32
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "A count of the total established sessions for
             this LDP Entity."





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         ::= { mplsLdpEntityStatsEntry 1 }

     mplsLdpAttemptedSessions OBJECT-TYPE
         SYNTAX      Counter32
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "A count of the total attempted sessions for
             this LDP Entity."
         ::= { mplsLdpEntityStatsEntry 2 }


     --
     -- The MPLS LDP Peer Table
     --

     mplsLdpPeerObjects OBJECT IDENTIFIER ::= { mplsLdpObjects 2 }

     mplsLdpPeerTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF MplsLdpPeerEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "Information about LDP peers which have been discovered
             by the LDP Entities that are managed by this agent."
         ::= { mplsLdpPeerObjects 1 }

     mplsLdpPeerEntry OBJECT-TYPE
         SYNTAX      MplsLdpPeerEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "Information about a single Peer."
         INDEX       { mplsLdpEntityIndex,
                       mplsLdpPeerIndex }
         ::= { mplsLdpPeerTable 1 }

     MplsLdpPeerEntry ::= SEQUENCE {
         mplsLdpPeerIndex                      Integer32,
         mplsLdpPeerId                         OCTET STRING,
         mplsLdpPeerInternetworkAddrType       MplsLdpIANAAddrFamily,
         mplsLdpPeerInternetworkAddr           MplsLdpGenAddr,
         mplsLdpPeerDefaultMtu                 Integer32,
         mplsLdpPeerKeepAliveHoldTimer         Integer32,
         mplsLdpPeerRowStatus                  RowStatus
     }





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     mplsLdpPeerIndex OBJECT-TYPE
         SYNTAX      Integer32 (1..65535)
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "An identifier for the LDP peer that is unique within the
              scope of this agent."
         ::= { mplsLdpPeerEntry 1 }

     mplsLdpPeerId OBJECT-TYPE
         SYNTAX      OCTET STRING (SIZE (6))
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The LDP identifier of this LDP Peer."
         ::= { mplsLdpPeerEntry 2 }

     mplsLdpPeerInternetworkAddrType OBJECT-TYPE
         SYNTAX      MplsLdpIANAAddrFamily
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The type of the internetwork layer address of this
             LDP peer. This object indicates how the value of
             mplsLdpPeerInternetworkAddr is to be interpreted."
         ::= { mplsLdpPeerEntry 3 }

     mplsLdpPeerInternetworkAddr OBJECT-TYPE
         SYNTAX      MplsLdpGenAddr
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The value of the internetwork layer address of this LDP peer."
         ::= { mplsLdpPeerEntry 4 }

     mplsLdpPeerDefaultMtu OBJECT-TYPE
         SYNTAX      Integer32 (0..65535)
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The default maximum transmission unit (MTU) of the
             LDP Peer."
         DEFVAL      { 9180 }
         ::= { mplsLdpPeerEntry 5 }

     mplsLdpPeerKeepAliveHoldTimer OBJECT-TYPE
         SYNTAX      Integer32 (1..65535)





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         UNITS       "seconds"
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "The two octet unsigned non zero integer that indicates
             the number of seconds that this Peer proposes for the
             value of the KeepAlive Interval."
         ::= { mplsLdpPeerEntry 6 }

     mplsLdpPeerRowStatus OBJECT-TYPE
         SYNTAX      RowStatus
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "An object that allows entries in this table to be created
             and deleted using the RowStatus convention."
         REFERENCE
            "Textual Conventions for Version 2 of the Simple Network
            Management Protocol (SNMPv2), RFC1903."
         ::= { mplsLdpPeerEntry 7 }

     --
     -- The MPLS LDP Peer Configurable ATM Label Range Table
     --

     mplsLdpPeerConfAtmLabelRangeTable OBJECT-TYPE
         SYNTAX SEQUENCE OF MplsLdpPeerConfAtmLabelRangeEntry
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "The MPLS LDP Peer Configurable ATM Label Range Table.
             The purpose of this table is to provide a mechanism
             for specifying a contiguous range of vpi's with a contiguous
             range of vci's, or a 'label range' for LDP Peers.
             LDP Peers which use ATM must have at least one
             entry in this table."
         ::= { mplsLdpPeerObjects 2 }

     mplsLdpPeerConfAtmLabelRangeEntry OBJECT-TYPE
         SYNTAX MplsLdpPeerConfAtmLabelRangeEntry
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "A row in the LDP Peer Configurable ATM Label Range Table.
             One entry in this table contains information
             on a single range of labels represented by
             the configured Upper and Lower Bounds VPI/VCI pairs.





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             NOTE:  The ranges for a specific LDP Peer
             are UNIQUE and non-overlapping.  For example,
             for a specific LDP Peer index, there could
             be one entry having ConfLowerBound vpi/vci == 0/32, and
             ConfUpperBound vpi/vci == 0/100, and a second entry for this
             same interface with ConfLowerBound vpi/vci == 0/101 and
             ConfUpperBound vpi/vci == 0/200.  However, there could not be
             a third entry with ConfLowerBound vpi/vci == 0/200 and
             ConfUpperBound vpi/vci == 0/300 because this label range overlaps
             with the second entry (i.e. both entries now have 0/200).

             A row will not be created unless a unique and non-overlapping
             range is specified.  Thus, row creation implies a one-shot
             row creation of LDP PeerIndex and ConfLowerBound vpi/vci and
             ConfUpperBound vpi/vci.  At least one label range entry
             for a specific LDP Peer MUST include the default VPI/VCI
             values denoted in the LDP Peer Table."
         INDEX { mplsLdpPeerIndex,
                 mplsLdpPeerConfAtmLabelRangeLowerBoundVPI,
                 mplsLdpPeerConfAtmLabelRangeLowerBoundVCI  }
         ::= { mplsLdpPeerConfAtmLabelRangeTable 1 }

     MplsLdpPeerConfAtmLabelRangeEntry ::= SEQUENCE {
         mplsLdpPeerConfAtmLabelRangeLowerBoundVPI      AtmVpIdentifier,
         mplsLdpPeerConfAtmLabelRangeLowerBoundVCI      AtmVcIdentifier,
         mplsLdpPeerConfAtmLabelRangeUpperBoundVPI      AtmVpIdentifier,
         mplsLdpPeerConfAtmLabelRangeUpperBoundVCI      AtmVcIdentifier,
         mplsLdpPeerConfAtmLabelRangeRowStatus          RowStatus
     }

     mplsLdpPeerConfAtmLabelRangeLowerBoundVPI OBJECT-TYPE
         SYNTAX AtmVpIdentifier
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "The minimum VPI number configured for this range."
         ::= { mplsLdpPeerConfAtmLabelRangeEntry 1 }

     mplsLdpPeerConfAtmLabelRangeLowerBoundVCI OBJECT-TYPE
         SYNTAX AtmVcIdentifier
         MAX-ACCESS not-accessible
         STATUS current
         DESCRIPTION
             "The minimum VCI number configured for this range."
         ::= { mplsLdpPeerConfAtmLabelRangeEntry 2 }

     mplsLdpPeerConfAtmLabelRangeUpperBoundVPI OBJECT-TYPE





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         SYNTAX AtmVpIdentifier
         MAX-ACCESS read-create
         STATUS current
         DESCRIPTION
             "The maximum VPI number configured for this range."
         ::= { mplsLdpPeerConfAtmLabelRangeEntry 3 }

     mplsLdpPeerConfAtmLabelRangeUpperBoundVCI OBJECT-TYPE
         SYNTAX AtmVcIdentifier
         MAX-ACCESS read-create
         STATUS current
         DESCRIPTION
             "The maximum VCI number configured for this range."
        ::= { mplsLdpPeerConfAtmLabelRangeEntry 4 }

     mplsLdpPeerConfAtmLabelRangeRowStatus OBJECT-TYPE
         SYNTAX RowStatus
         MAX-ACCESS read-create
         STATUS current
              DESCRIPTION
                  "An object that allows entries in this table to be created
                  and deleted using the RowStatus convention."
              REFERENCE
                  "Textual Conventions for Version 2 of the Simple Network
                  Management Protocol (SNMPv2), RFC1903."
         ::= { mplsLdpPeerConfAtmLabelRangeEntry 5 }

     --
     -- The MPLS LDP Sessions Table
     --

     mplsLdpSessionObjects OBJECT IDENTIFIER ::= { mplsLdpObjects 3 }

     mplsLdpSessionTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF MplsLdpSessionEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "A table of Sessions between the LDP Entities and
             LDP Peers."
         ::= { mplsLdpSessionObjects 1 }

     mplsLdpSessionEntry OBJECT-TYPE
         SYNTAX      MplsLdpSessionEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION





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             "An entry in this table represents information on a
             single session between an LDP Entity and LDP Peer."
         INDEX       { mplsLdpEntityIndex,
                       mplsLdpPeerIndex,
                       mplsLdpSessionIndex
                     }
         ::= { mplsLdpSessionTable 1 }

     MplsLdpSessionEntry ::= SEQUENCE {
         mplsLdpSessionIndex                          Integer32,
         mplsLdpSessionId                             OCTET STRING,
         mplsLdpSessionProtocolVersion                Integer32,
         mplsLdpSessionKeepAliveHoldTimeRemaining     TimeInterval,
         mplsLdpSessionRole                           INTEGER,
         mplsLdpSessionState                          INTEGER,
         mplsLdpSessionAtmLabelRangeLowerBoundVPI     AtmVpIdentifier,
         mplsLdpSessionAtmLabelRangeLowerBoundVCI     AtmVcIdentifier,
         mplsLdpSessionAtmLabelRangeUpperBoundVPI     AtmVpIdentifier,
         mplsLdpSessionAtmLabelRangeUpperBoundVCI     AtmVcIdentifier,
         mplsLdpSessionRowStatus                      RowStatus
     }

     mplsLdpSessionIndex OBJECT-TYPE
         SYNTAX      Integer32 (1..2147483647)
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "An unique identifier for this entry such that it
             identifies a specific LDP Session."
         ::= { mplsLdpSessionEntry 1 }

     mplsLdpSessionId OBJECT-TYPE
         SYNTAX      OCTET STRING(SIZE(6))
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "The LDP Session identifier."
         ::= { mplsLdpSessionEntry 2 }

     mplsLdpSessionProtocolVersion OBJECT-TYPE
              SYNTAX      Integer32(0..65535)
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                  "The version of the LDP Protocol which
                  this session is using."
              ::= { mplsLdpSessionEntry 3 }





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     mplsLdpSessionKeepAliveHoldTimeRemaining OBJECT-TYPE
         SYNTAX      TimeInterval
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "The keep alive hold time remaining for this session."
         ::= { mplsLdpSessionEntry 4 }

     mplsLdpSessionRole OBJECT-TYPE
         SYNTAX      INTEGER {
                        active(1),
                        passive(2)
                     }
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "An indication of whether the LDP Entity associated with
             this session is acting in an 'active' role or
             a 'passive' role."
         ::= { mplsLdpSessionEntry 5 }

     mplsLdpSessionState OBJECT-TYPE
         SYNTAX      INTEGER {
                        nonexistent(1),
                        initialized(2),
                        openrec(3),
                        opensent(4),
                        operational(5)
                     }
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "The current state of the session, all of the
             states 1 - 5 are based on the state machine for
             session negotiation behavior."
         ::= { mplsLdpSessionEntry 6 }

     mplsLdpSessionAtmLabelRangeLowerBoundVPI OBJECT-TYPE
         SYNTAX AtmVpIdentifier
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
             "The minimum VPI number for this range."
         ::= { mplsLdpSessionEntry 7 }

     mplsLdpSessionAtmLabelRangeLowerBoundVCI OBJECT-TYPE
         SYNTAX AtmVcIdentifier





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         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
             "The minimum VCI number for this range."
         ::= { mplsLdpSessionEntry 8 }

     mplsLdpSessionAtmLabelRangeUpperBoundVPI OBJECT-TYPE
         SYNTAX AtmVpIdentifier
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
             "The maximum VPI number for this range."
         ::= { mplsLdpSessionEntry 9 }

     mplsLdpSessionAtmLabelRangeUpperBoundVCI OBJECT-TYPE
         SYNTAX AtmVcIdentifier
         MAX-ACCESS read-only
         STATUS current
         DESCRIPTION
             "The maximum VCI number for this range."
         ::= { mplsLdpSessionEntry 10 }

     mplsLdpSessionRowStatus OBJECT-TYPE
         SYNTAX      RowStatus
         MAX-ACCESS  read-create
         STATUS      current
         DESCRIPTION
             "An object that allows entries in this table to be created
             and deleted using the RowStatus convention."
         REFERENCE
             "Textual Conventions for Version 2 of the Simple Network
             Management Protocol (SNMPv2), RFC1903."
         ::= { mplsLdpSessionEntry 11 }

     --
     -- The MPLS LDP Hello Adjacency Table
     --

     mplsLdpHelloAdjacencyObjects OBJECT IDENTIFIER ::= { mplsLdpObjects 4 }

     mplsLdpHelloAdjacencyTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF MplsLdpHelloAdjacencyEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "A table of Hello Adjacencies for Sessions."
         ::= { mplsLdpHelloAdjacencyObjects 1 }





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     mplsLdpHelloAdjacencyEntry OBJECT-TYPE
         SYNTAX      MplsLdpHelloAdjacencyEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "Each row represents a single LDP Hello Adjacency.
             An LDP Session can have one or more Hello adjacencies."
         INDEX       { mplsLdpSessionIndex,
                       mplsLdpHelloAdjacencyIndex }
         ::= { mplsLdpHelloAdjacencyTable 1 }

     MplsLdpHelloAdjacencyEntry ::= SEQUENCE {
         mplsLdpHelloAdjacencyIndex                  Integer32,
         mplsLdpHelloAdjacencyHoldTimeRemaining      TimeInterval
     }

     mplsLdpHelloAdjacencyIndex OBJECT-TYPE
         SYNTAX      Integer32 (1..2147483647)
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "An identifier for the adjacency."
         ::= { mplsLdpHelloAdjacencyEntry 1 }

     mplsLdpHelloAdjacencyHoldTimeRemaining OBJECT-TYPE
         SYNTAX      TimeInterval
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "The time remaining for this Hello Adjacency."
         ::= { mplsLdpHelloAdjacencyEntry 2 }

     ---
     --- Notifications
     ---

     mplsLdpNotificationPrefix   OBJECT IDENTIFIER ::=
                                      { mplsLdpNotifications 0 }

     mplsLdpFailedInitSessionThresholdExceeded NOTIFICATION-TYPE
          OBJECTS     {
                        mplsLdpEntityFailedInitSessionThreshold
                      }
          STATUS      current
          DESCRIPTION
             "This notification is generated whenever the value
             of mplsLdpEntityFailedInitSessionThreshold is





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             exceeded."
          ::= { mplsLdpNotificationPrefix 1 }


     --********************************************************************
     -- Module Compliance Statement
     --********************************************************************


     mplsLdpGroups
         OBJECT IDENTIFIER ::= { mplsLdpConformance 1 }

     mplsLdpCompliances
         OBJECT IDENTIFIER ::= { mplsLdpConformance 2 }

     mplsLdpModuleCompliance MODULE-COMPLIANCE
         STATUS current
         DESCRIPTION
             "The compliance statement for agents that support
             the MPLS LDP MIB."
         MODULE -- this module
             MANDATORY-GROUPS    { mplsLdpGeneralGroup,
                                   mplsLdpNotificationsGroup
                                 }
         OBJECT   mplsLdpEntityRowStatus
         MIN-ACCESS  read-only
         DESCRIPTION
             "The agent is not required to support a SET operation
             to this object."

         OBJECT   mplsLdpPeerRowStatus
         MIN-ACCESS  read-only
         DESCRIPTION
             "The agent is not required to support a SET operation
             to this object."
         ::= { mplsLdpCompliances 1 }

     -- units of conformance

     mplsLdpGeneralGroup OBJECT-GROUP
         OBJECTS {
         mplsLdpEntityIndex,
         mplsLdpEntityConfId,
         mplsLdpEntityConfDefVpi,
         mplsLdpEntityConfDefVci,
         mplsLdpEntityConfWellKnownDiscoveryPort,
         mplsLdpEntityConfMtu,





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         mplsLdpEntityConfKeepAliveHoldTimer,
         mplsLdpEntityLoopDetection,
         mplsLdpEntityLoopPrevention,
         mplsLdpEntityFailedInitSessionThreshold,
         mplsLdpEntityRowStatus,
         mplsLdpEntityConfAtmLabelRangeLowerBoundVPI,
         mplsLdpEntityConfAtmLabelRangeLowerBoundVCI,
         mplsLdpEntityConfAtmLabelRangeUpperBoundVPI,
         mplsLdpEntityConfAtmLabelRangeUpperBoundVCI,
         mplsLdpEntityConfAtmLabelRangeRowStatus,
         mplsLdpEstablishedSessions,
         mplsLdpAttemptedSessions,
         mplsLdpPeerIndex,
         mplsLdpPeerId,
         mplsLdpPeerInternetworkAddrType,
         mplsLdpPeerInternetworkAddr,
         mplsLdpPeerDefaultMtu,
         mplsLdpPeerKeepAliveHoldTimer,
         mplsLdpPeerRowStatus,
         mplsLdpPeerConfAtmLabelRangeLowerBoundVPI,
         mplsLdpPeerConfAtmLabelRangeLowerBoundVCI,
         mplsLdpPeerConfAtmLabelRangeUpperBoundVPI,
         mplsLdpPeerConfAtmLabelRangeUpperBoundVCI,
         mplsLdpPeerConfAtmLabelRangeRowStatus,
         mplsLdpSessionIndex,
         mplsLdpSessionId,
         mplsLdpSessionProtocolVersion,
         mplsLdpSessionKeepAliveHoldTimeRemaining,
         mplsLdpSessionRole,
         mplsLdpSessionState,
         mplsLdpSessionAtmLabelRangeLowerBoundVPI,
         mplsLdpSessionAtmLabelRangeLowerBoundVCI,
         mplsLdpSessionAtmLabelRangeUpperBoundVPI,
         mplsLdpSessionAtmLabelRangeUpperBoundVCI,
         mplsLdpSessionRowStatus,
         mplsLdpHelloAdjacencyIndex,
         mplsLdpHelloAdjacencyHoldTimeRemaining
         }
         STATUS    current
         DESCRIPTION
             "Objects that apply to all MPLS LDP implementations over ATM."
         ::= { mplsLdpGroups 1 }


         mplsLdpNotificationsGroup NOTIFICATION-GROUP
             NOTIFICATIONS { mplsLdpFailedInitSessionThresholdExceeded }
             STATUS   current





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             DESCRIPTION
                 "The notification(s) which an MPLS LDP implemention
                 is required to implement."
             ::= { mplsLdpGroups 2 }


     END












































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4.  Acknowledgments

   The authors would like to thank the following people:  Leigh
   McLellan, Geetha Brown, Geping Chen and Charlan Zhou from Bay
   Networks, and Zoltan Takacs and Bo Augustsson from Ericsson.














































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5.  References

[1]  Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for
     Describing SNMP Management Frameworks", RFC 2271, Cabletron
     Systems, Inc., BMC Software, Inc., IBM T. J. Watson Research,
     January 1998

[2]  Rose, M., and K. McCloghrie, "Structure and Identification of
     Management Information for TCP/IP-based Internets", RFC 1155,
     Performance Systems International, Hughes LAN Systems, May 1990

[3]  Rose, M., and K. McCloghrie, "Concise MIB Definitions", RFC 1212,
     Performance Systems International, Hughes LAN Systems, March 1991

[4]  M. Rose, "A Convention for Defining Traps for use with the SNMP",
     RFC 1215, Performance Systems International, March 1991

[5]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure
     of Management Information for Version 2 of the Simple Network
     Management Protocol (SNMPv2)", RFC 1902, SNMP Research,Inc., Cisco
     Systems, Inc., Dover Beach Consulting, Inc., International Network
     Services, January 1996.

[6]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual
     Conventions for Version 2 of the Simple Network Management Protocol
     (SNMPv2)", RFC 1903, SNMP Research, Inc., Cisco Systems, Inc.,
     Dover Beach Consulting, Inc., International Network Services,
     January 1996.

[7]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Conformance
     Statements for Version 2 of the Simple Network Management Protocol
     (SNMPv2)", RFC 1904, SNMP Research, Inc., Cisco Systems, Inc.,
     Dover Beach Consulting, Inc., International Network Services,
     January 1996.

[8]  Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple Network
     Management Protocol", RFC 1157, SNMP Research, Performance Systems
     International, Performance Systems International, MIT Laboratory
     for Computer Science, May 1990.

[9]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
     "Introduction to Community-based SNMPv2", RFC 1901, SNMP Research,
     Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc.,
     International Network Services, January 1996.

[10] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Transport
     Mappings for Version 2 of the Simple Network Management Protocol





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     (SNMPv2)", RFC 1906, SNMP Research, Inc., Cisco Systems, Inc.,
     Dover Beach Consulting, Inc., International Network Services,
     January 1996.

[11] Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message
     Processing and Dispatching for the Simple Network Management
     Protocol (SNMP)", RFC 2272, SNMP Research, Inc., Cabletron Systems,
     Inc., BMC Software, Inc., IBM T. J. Watson Research, January 1998.

[12] Blumenthal, U., and B. Wijnen, "User-based Security Model (USM) for
     version 3 of the Simple Network Management Protocol (SNMPv3)", RFC
     2274, IBM T. J. Watson Research, January 1998.

[13] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol
     Operations for Version 2 of the Simple Network Management Protocol
     (SNMPv2)", RFC 1905, SNMP Research, Inc., Cisco Systems, Inc.,
     Dover Beach Consulting, Inc., International Network Services,
     January 1996.

[14] Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications", RFC
     2273, SNMP Research, Inc., Secure Computing Corporation, Cisco
     Systems, January 1998

[15] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based Access
     Control Model (VACM) for the Simple Network Management Protocol
     (SNMP)", RFC 2275, IBM T. J. Watson Research, BMC Software, Inc.,
     Cisco Systems, Inc., January 1998

[16] Narten, T., and H. Alvestrand, "Guidelines for Writing an IANA
     Considerations Section in RFCs", draft-iesg-iana-considerations-
     04.txt, IBM, UNINETT, May 1998.

[17] Andersson, Loa, Doolan, P., Feldman, N., Fredette, A., and Thomas,
     R., "Label Distribution Protocol.", draft-ietf-mpls-ldp-01.txt, Bay
     Networks, Ennovate Networks, IBM, Bay Networks, cisco Systems March
     1998.

[18] Callon, R., Doolan, P., Feldman, N., Fredette, A., Swallow, G., and
     A. Viswanathan., "A Framework for Multiprotocol Label Switching",
     draft-ietf-mpls-framework-02.txt, Ascend Communications, Ennovate
     Networks, IBM, Bay Networks, cisco Systems, November 1997.










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6.  Security Considerations



7.  Authors' Addresses


                  Joan Cucchiara
                  Bay Networks
                  3 Federal Street
                  Mail Stop: BL3-03
                  Billerica, MA 01821
                  Phone: (978) 916-8555
                  Email: joanc@baynetworks.com


                  Hans Sjostrand
                  Ericsson
                  Business Unit Datacom Networks and IP Services
                  S-126 25 Stockholm, Sweden
                  Phone: +46 8 719 9960
                  Email: hans.sjostrand@etx.ericsson.se


                  James V. Luciani
                  Bay Networks
                  3 Federal Street
                  Mail Stop:  BL3-03
                  Billerica, MA 01821
                  Phone: (978) 916-4734
                  Email: luciani@baynetworks.com




















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Full Copyright Statement

   Copyright (C) The Internet Society (1998).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
























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   Table of Contents


   1 The SNMP Management Framework ................................    2
   1.1 Object Definitions .........................................    3
   2 Structure of the MIB .........................................    4
   2.1 The MPLS LDP General Group .................................    4
   2.1.1 The Label Distribution Protocol's Entity Table ...........    4
   2.1.2 The Label  Distribution  Protocol's  Entity  Statistics
        Table .....................................................    4
   2.1.3 The LDP Peer Table .......................................    4
   2.1.4 The LDP Sessions Table ...................................    5
   2.1.5 The LDP Adjacencies Table ................................    5
   2.1.6 The LDP Label Information Base (LIB) Table ...............    5
   2.2 The LDP Notifications Group ................................    5
   2.2.1 LDP Notifications ........................................    5
   3 MPLS Label Distribution Protocol MIB Definitions .............    5
   4 Acknowledgments ..............................................   26
   5 References ...................................................   27
   6 Security Considerations ......................................   29
   7 Authors' Addresses ...........................................   29






























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