RFC3811

From RFC-Wiki

Network Working Group T. Nadeau, Ed. Request for Comments: 3811 Cisco Systems, Inc. Category: Standards Track J. Cucchiara, Ed.

                                        Marconi Communications, Inc.
                                                           June 2004
          Definitions of Textual Conventions (TCs) for
        Multiprotocol Label Switching (MPLS) Management

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2004).

Abstract

This memo defines a Management Information Base (MIB) module which contains Textual Conventions to represent commonly used Multiprotocol Label Switching (MPLS) management information. The intent is that these TEXTUAL CONVENTIONS (TCs) will be imported and used in MPLS related MIB modules that would otherwise define their own representations.

Introduction

This document defines a MIB module which contains Textual Conventions for Multiprotocol Label Switching (MPLS) networks. These Textual Conventions should be imported by MIB modules which manage MPLS networks.

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 RFC2119.

For an introduction to the concepts of MPLS, see RFC3031.

The Internet-Standard Management Framework

For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 RFC3410.

Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP). Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58, RFC 2578 RFC2578, STD 58, RFC 2579 RFC2579 and STD 58, RFC 2580 RFC2580.

MPLS Textual Conventions MIB Definitions

MPLS-TC-STD-MIB DEFINITIONS ::= BEGIN

   IMPORTS
      MODULE-IDENTITY,
      Unsigned32, Integer32,
      transmission           FROM SNMPv2-SMI            -- RFC2578
      TEXTUAL-CONVENTION
         FROM SNMPv2-TC;                                -- RFC2579
   mplsTCStdMIB MODULE-IDENTITY
      LAST-UPDATED "200406030000Z" -- June 3, 2004
      ORGANIZATION
         "IETF Multiprotocol Label Switching (MPLS) Working
          Group."
      CONTACT-INFO
           "        Thomas D. Nadeau
                    Cisco Systems, Inc.
                    [email protected]
                    Joan Cucchiara
                    Marconi Communications, Inc.
                    [email protected]
                    Cheenu Srinivasan
                    Bloomberg L.P.
                    [email protected]
                    Arun Viswanathan
                    Force10 Networks, Inc.
                    [email protected]
                    Hans Sjostrand
                    ipUnplugged
                    [email protected]
                    Kireeti Kompella
                    Juniper Networks
                    [email protected]
         Email comments to the MPLS WG Mailing List at
         [email protected]."
      DESCRIPTION
          "Copyright (C) The Internet Society (2004). The
          initial version of this MIB module was published
          in RFC 3811. For full legal notices see the RFC
          itself or see:
          http://www.ietf.org/copyrights/ianamib.html
          This MIB module defines TEXTUAL-CONVENTIONs
          for concepts used in Multiprotocol Label
          Switching (MPLS) networks."
      REVISION "200406030000Z" -- June 3, 2004
      DESCRIPTION
         "Initial version published as part of RFC 3811."
       ::= { mplsStdMIB 1 }
   mplsStdMIB OBJECT IDENTIFIER
   ::= { transmission 166 }
   MplsAtmVcIdentifier ::= TEXTUAL-CONVENTION
      DISPLAY-HINT "d"
      STATUS  current
      DESCRIPTION
         "A Label Switching Router (LSR) that
          creates LDP sessions on ATM interfaces
          uses the VCI or VPI/VCI field to hold the
          LDP Label.
          VCI values MUST NOT be in the 0-31 range.
          The values 0 to 31 are reserved for other uses
          by the ITU and ATM Forum.  The value
          of 32 can only be used for the Control VC,
          although values greater than 32 could be
          configured for the Control VC.
          If a value from 0 to 31 is used for a VCI
          the management entity controlling the LDP
          subsystem should reject this with an
          inconsistentValue error.  Also, if
          the value of 32 is used for a VC which is
          NOT the Control VC, this should
          result in an inconsistentValue error."
      REFERENCE
         "MPLS using LDP and ATM VC Switching, RFC3035."
      SYNTAX  Integer32 (32..65535)
   MplsBitRate ::= TEXTUAL-CONVENTION
      DISPLAY-HINT "d"
      STATUS      current
      DESCRIPTION
         "If the value of this object is greater than zero,
          then this represents the bandwidth of this MPLS
          interface (or Label Switched Path) in units of
          '1,000 bits per second'.
          The value, when greater than zero, represents the
          bandwidth of this MPLS interface (rounded to the
          nearest 1,000) in units of 1,000 bits per second.
          If the bandwidth of the MPLS interface is between
          ((n * 1000) - 500) and ((n * 1000) + 499), the value
          of this object is n, such that n > 0.
          If the value of this object is 0 (zero), this
          means that the traffic over this MPLS interface is
          considered to be best effort."
      SYNTAX  Unsigned32 (0|1..4294967295)
   MplsBurstSize ::= TEXTUAL-CONVENTION
      DISPLAY-HINT "d"
      STATUS      current
      DESCRIPTION
         "The number of octets of MPLS data that the stream
          may send back-to-back without concern for policing.
          The value of zero indicates that an implementation
          does not support Burst Size."
      SYNTAX  Unsigned32 (0..4294967295)
   MplsExtendedTunnelId ::= TEXTUAL-CONVENTION
      STATUS        current
      DESCRIPTION
         "A unique identifier for an MPLS Tunnel.  This may
          represent an IPv4 address of the ingress or egress
          LSR for the tunnel.  This value is derived from the
          Extended Tunnel Id in RSVP or the Ingress Router ID
          for CR-LDP."
      REFERENCE
         "RSVP-TE: Extensions to RSVP for LSP Tunnels,
          RFC3209.
          Constraint-Based LSP Setup using LDP, RFC3212."
      SYNTAX  Unsigned32(0..4294967295)
   MplsLabel ::= TEXTUAL-CONVENTION
      STATUS        current
      DESCRIPTION
         "This value represents an MPLS label as defined in
          RFC3031,  RFC3032, RFC3034, RFC3035 and
          RFC3471.
          The label contents are specific to the label being
          represented, such as:
          * The label carried in an MPLS shim header
            (for LDP this is the Generic Label) is a 20-bit
            number represented by 4 octets.  Bits 0-19 contain
            a label or a reserved label value.  Bits 20-31
            MUST be zero.
            The following is quoted directly from RFC3032.
            There are several reserved label values:
               i. A value of 0 represents the
                  'IPv4 Explicit NULL Label'.  This label
                  value is only legal at the bottom of the
                  label stack.  It indicates that the label
                  stack must be popped, and the forwarding
                  of the packet must then be based on the
                  IPv4 header.
              ii. A value of 1 represents the
                  'Router Alert Label'.  This label value is
                  legal anywhere in the label stack except at
                  the bottom.  When a received packet
                  contains this label value at the top of
                  the label stack, it is delivered to a
                  local software module for processing.
                  The actual forwarding of the packet
                  is determined by the label beneath it
                  in the stack.  However, if the packet is
                  forwarded further, the Router Alert Label
                  should be pushed back onto the label stack
                  before forwarding.  The use of this label
                  is analogous to the use of the
                  'Router Alert Option' in IP packets
                  RFC2113.  Since this label
                  cannot occur at the bottom of the stack,
                  it is not associated with a
                  particular network layer protocol.
             iii. A value of 2 represents the
                  'IPv6 Explicit NULL Label'.  This label
                  value is only legal at the bottom of the
                  label stack.  It indicates that the label
                  stack must be popped, and the forwarding
                  of the packet must then be based on the
                  IPv6 header.
              iv. A value of 3 represents the
                  'Implicit NULL Label'.
                  This is a label that an LSR may assign and
                  distribute, but which never actually
                  appears in the encapsulation.  When an
                  LSR would otherwise replace the label
                  at the top of the stack with a new label,
                  but the new label is 'Implicit NULL',
                  the LSR will pop the stack instead of
                  doing the replacement.  Although
                  this value may never appear in the
                  encapsulation, it needs to be specified in
                  the Label Distribution Protocol, so a value
                  is reserved.
               v. Values 4-15 are reserved.
          * The frame relay label can be either 10-bits or
            23-bits depending on the DLCI field size and the
            upper 22-bits or upper 9-bits must be zero,
            respectively.
          * For an ATM label the lower 16-bits represents the
            VCI, the next 12-bits represents the VPI and the
            remaining bits MUST be zero.
          * The Generalized-MPLS (GMPLS) label contains a
            value greater than 2^24-1 and used in GMPLS
            as defined in RFC3471."
      REFERENCE
         "Multiprotocol Label Switching Architecture,
          RFC3031.
          MPLS Label Stack Encoding, RFC3032.
          Use of Label Switching on Frame Relay Networks,
          RFC3034.
          MPLS using LDP and ATM VC Switching, RFC3035.
          Generalized Multiprotocol Label Switching
          (GMPLS) Architecture, RFC3471."
      SYNTAX  Unsigned32 (0..4294967295)
   MplsLabelDistributionMethod ::= TEXTUAL-CONVENTION
      STATUS  current
      DESCRIPTION
         "The label distribution method which is also called
          the label advertisement mode RFC3036.
          Each interface on an LSR is configured to operate
          in either Downstream Unsolicited or Downstream
          on Demand."
      REFERENCE
         "Multiprotocol Label Switching Architecture,
          RFC3031.
          LDP Specification, RFC3036, Section 2.6.3."
      SYNTAX INTEGER {
                 downstreamOnDemand(1),
                 downstreamUnsolicited(2)
             }
   MplsLdpIdentifier ::= TEXTUAL-CONVENTION
      DISPLAY-HINT "1d.1d.1d.1d:2d"
      STATUS      current
      DESCRIPTION
         "The LDP identifier is a six octet
          quantity which is used to identify a
          Label Switching Router (LSR) label space.
          The first four octets identify the LSR and
          must be a globally unique value, such as a
          32-bit router ID assigned to the LSR, and the
          last two octets identify a specific label
          space within the LSR."
      SYNTAX  OCTET STRING (SIZE (6))
   MplsLsrIdentifier ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
         "The Label Switching Router (LSR) identifier is the
          first 4 bytes of the Label Distribution Protocol
          (LDP) identifier."
      SYNTAX  OCTET STRING (SIZE (4))
   MplsLdpLabelType ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
         "The Layer 2 label types which are defined for MPLS
          LDP and/or CR-LDP are generic(1), atm(2), or
          frameRelay(3)."
      SYNTAX  INTEGER {
                generic(1),
                atm(2),
                frameRelay(3)
            }
   MplsLSPID ::= TEXTUAL-CONVENTION
      STATUS        current
      DESCRIPTION
         "A unique identifier within an MPLS network that is
          assigned to each LSP.  This is assigned at the head
          end of the LSP and can be used by all LSRs
          to identify this LSP.  This value is piggybacked by
          the signaling protocol when this LSP is signaled
          within the network.  This identifier can then be
          used at each LSR to identify which labels are
          being swapped to other labels for this LSP.  This
          object  can also be used to disambiguate LSPs that
          share the same RSVP sessions between the same
          source and destination.
          For LSPs established using CR-LDP, the LSPID is
          composed of the ingress LSR Router ID (or any of
          its own IPv4 addresses) and a locally unique
          CR-LSP ID to that LSR.  The first two bytes carry
          the CR-LSPID, and the remaining 4 bytes carry
          the Router ID.  The LSPID is useful in network
          management, in CR-LSP repair, and in using
          an already established CR-LSP as a hop in
          an ER-TLV.
          For LSPs signaled using RSVP-TE, the LSP ID is
          defined as a 16-bit (2 byte) identifier used
          in the SENDER_TEMPLATE and the FILTER_SPEC
          that can be changed to allow a sender to
          share resources with itself.  The length of this
          object should only be 2 or 6 bytes.  If the length
          of this octet string is 2 bytes, then it must
          identify an RSVP-TE LSPID, or it is 6 bytes,
          it must contain a CR-LDP LSPID."
      REFERENCE
         "RSVP-TE:  Extensions to RSVP for LSP Tunnels,
          RFC3209.
          Constraint-Based LSP Setup using LDP,
          RFC3212."
      SYNTAX  OCTET STRING (SIZE (2|6))
   MplsLspType ::= TEXTUAL-CONVENTION
      STATUS  current
      DESCRIPTION
         "Types of Label Switch Paths (LSPs)
          on a Label Switching Router (LSR) or a
          Label Edge Router (LER) are:
             unknown(1)         -- if the LSP is not known
                                   to be one of the following.
             terminatingLsp(2)  -- if the LSP terminates
                                   on the LSR/LER, then this
                                   is an egressing LSP
                                   which ends on the LSR/LER,
             originatingLsp(3)  -- if the LSP originates
                                   from this LSR/LER, then
                                   this is an ingressing LSP
                                   which is the head-end of
                                   the LSP,
          crossConnectingLsp(4) -- if the LSP ingresses
                                   and egresses on the LSR,
                                   then it is
                                   cross-connecting on that
                                   LSR."
      SYNTAX INTEGER {
                 unknown(1),
                 terminatingLsp(2),
                 originatingLsp(3),
                 crossConnectingLsp(4)
             }
   MplsOwner ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
         "This object indicates the local network
          management subsystem that originally created
          the object(s) in question.  The values of
          this enumeration are defined as follows:
          unknown(1) - the local network management
          subsystem cannot discern which
          component created the object.
          other(2) - the local network management
          subsystem is able to discern which component
          created the object, but the component is not
          listed within the following choices,
          e.g., command line interface (cli).
          snmp(3) - The Simple Network Management Protocol
          was used to configure this object initially.
          ldp(4) - The Label Distribution Protocol was
          used to configure this object initially.
          crldp(5) - The Constraint-Based Label Distribution
          Protocol was used to configure this object
          initially.
          rsvpTe(6) - The Resource Reservation Protocol was
          used to configure this object initially.
          policyAgent(7) - A policy agent (perhaps in
          combination with one of the above protocols) was
          used to configure this object initially.
          An object created by any of the above choices
          MAY be modified or destroyed by the same or a
          different choice."
      SYNTAX  INTEGER {
                unknown(1),
                other(2),
                snmp(3),
                ldp(4),
                crldp(5),
                rsvpTe(6),
                policyAgent(7)
            }
   MplsPathIndexOrZero ::= TEXTUAL-CONVENTION
      STATUS current
      DESCRIPTION
         "A unique identifier used to identify a specific
          path used by a tunnel.  A value of 0 (zero) means
          that no path is in use."
      SYNTAX  Unsigned32(0..4294967295)
   MplsPathIndex ::= TEXTUAL-CONVENTION
      STATUS        current
      DESCRIPTION
         "A unique value to index (by Path number) an
          entry in a table."
      SYNTAX  Unsigned32(1..4294967295)
   MplsRetentionMode ::= TEXTUAL-CONVENTION
      STATUS  current
      DESCRIPTION
         "The label retention mode which specifies whether
          an LSR maintains a label binding for a FEC
          learned from a neighbor that is not its next hop
          for the FEC.
          If the value is conservative(1) then advertised
          label mappings are retained only if they will be
          used to forward packets, i.e., if label came from
          a valid next hop.
          If the value is liberal(2) then all advertised
          label mappings are retained whether they are from
          a valid next hop or not."
      REFERENCE
         "Multiprotocol Label Switching Architecture,
          RFC3031.
          LDP Specification, RFC3036, Section 2.6.2."
      SYNTAX INTEGER {
                 conservative(1),
                 liberal(2)
             }
   MplsTunnelAffinity ::= TEXTUAL-CONVENTION
      STATUS        current
      DESCRIPTION
         "Describes the configured 32-bit Include-any,
          include-all, or exclude-all constraint for
          constraint-based link selection."
      REFERENCE
         "RSVP-TE:  Extensions to RSVP for LSP Tunnels,
          RFC3209, Section 4.7.4."
      SYNTAX  Unsigned32(0..4294967295)
   MplsTunnelIndex ::= TEXTUAL-CONVENTION
      STATUS        current
      DESCRIPTION
         "A unique index into mplsTunnelTable.
          For tunnels signaled using RSVP, this value
          should correspond to the RSVP Tunnel ID
          used for the RSVP-TE session."
      SYNTAX  Unsigned32 (0..65535)
   MplsTunnelInstanceIndex ::= TEXTUAL-CONVENTION
      STATUS        current
      DESCRIPTION
         "The tunnel entry with instance index 0
          should refer to the configured tunnel
          interface (if one exists).
          Values greater than 0, but less than or
          equal to 65535, should be used to indicate
          signaled (or backup) tunnel LSP instances.
          For tunnel LSPs signaled using RSVP,
          this value should correspond to the
          RSVP LSP ID used for the RSVP-TE
          LSP.
          Values greater than 65535 apply to FRR
          detour instances."
      SYNTAX  Unsigned32(0|1..65535|65536..4294967295)
   TeHopAddressType ::= TEXTUAL-CONVENTION
      STATUS     current
      DESCRIPTION
         "A value that represents a type of address for a
          Traffic Engineered (TE) Tunnel hop.
          unknown(0)   An unknown address type.  This value
                       MUST be used if the value of the
                       corresponding TeHopAddress object is a
                       zero-length string.  It may also be
                       used to indicate a TeHopAddress which
                       is not in one of the formats defined
                       below.
          ipv4(1)      An IPv4 network address as defined by
                       the InetAddressIPv4 TEXTUAL-CONVENTION
                       RFC3291.
          ipv6(2)      A global IPv6 address as defined by
                       the InetAddressIPv6 TEXTUAL-CONVENTION
                       RFC3291.
          asnumber(3)  An Autonomous System (AS) number as
                       defined by the TeHopAddressAS
                       TEXTUAL-CONVENTION.
          unnum(4)     An unnumbered interface index as
                       defined by the TeHopAddressUnnum
                       TEXTUAL-CONVENTION.
          lspid(5)     An LSP ID for TE Tunnels
                       (RFC3212) as defined by the
                       MplsLSPID TEXTUAL-CONVENTION.
          Each definition of a concrete TeHopAddressType
          value must be accompanied by a definition
          of a TEXTUAL-CONVENTION for use with that
          TeHopAddress.
          To support future extensions, the TeHopAddressType
          TEXTUAL-CONVENTION SHOULD NOT be sub-typed in
          object type definitions.  It MAY be sub-typed in
          compliance statements in order to require only a
          subset of these address types for a compliant
          implementation.
          Implementations must ensure that TeHopAddressType
          objects and any dependent objects
          (e.g., TeHopAddress objects) are consistent.
          An inconsistentValue error must be generated
          if an attempt to change a TeHopAddressType
          object would, for example, lead to an
          undefined TeHopAddress value that is
          not defined herein.  In particular,
          TeHopAddressType/TeHopAddress pairs
          must be changed together if the address
          type changes (e.g., from ipv6(2) to ipv4(1))."
      REFERENCE
         "TEXTUAL-CONVENTIONs for Internet Network
          Addresses, RFC3291.
          Constraint-Based LSP Setup using LDP,
          RFC3212"
      SYNTAX     INTEGER {
                    unknown(0),
                    ipv4(1),
                    ipv6(2),
                    asnumber(3),
                    unnum(4),
                    lspid(5)
                 }
   TeHopAddress ::= TEXTUAL-CONVENTION
      STATUS     current
      DESCRIPTION
         "Denotes a generic Tunnel hop address,
          that is, the address of a node which
          an LSP traverses, including the source
          and destination nodes.  An address may be
          very concrete, for example, an IPv4 host
          address (i.e., with prefix length 32);
          if this IPv4 address is an interface
          address, then that particular interface
          must be traversed.  An address may also
          specify an 'abstract node', for example,
          an IPv4 address with prefix length
          less than 32, in which case, the LSP
          can traverse any node whose address
          falls in that range.  An address may
          also specify an Autonomous System (AS),
          in which  case the LSP can traverse any
          node that falls within that AS.
          A TeHopAddress value is always interpreted within
          the context of an TeHopAddressType value.  Every
          usage of the TeHopAddress TEXTUAL-CONVENTION
          is required to specify the TeHopAddressType object
          which provides the context.  It is suggested that
          the TeHopAddressType object is logically registered
          before the object(s) which use the TeHopAddress
          TEXTUAL-CONVENTION if they appear in the
          same logical row.
          The value of a TeHopAddress object must always be
          consistent with the value of the associated
          TeHopAddressType object.  Attempts to set a
          TeHopAddress object to a value which is
          inconsistent with the associated TeHopAddressType
          must fail with an inconsistentValue error."
      SYNTAX     OCTET STRING (SIZE (0..32))
   TeHopAddressAS ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
         "Represents a two or four octet AS number.
          The AS number is represented in network byte
          order (MSB first).  A two-octet AS number has
          the two MSB octets set to zero."
      REFERENCE
         "Textual Conventions for Internet Network
          Addresses, RFC3291.  The
          InetAutonomousSystemsNumber TEXTUAL-CONVENTION
          has a SYNTAX of Unsigned32, whereas this TC
          has a SYNTAX of OCTET STRING (SIZE (4)).
          Both TCs represent an autonomous system number
          but use different syntaxes to do so."
      SYNTAX      OCTET STRING (SIZE (4))
   TeHopAddressUnnum ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
         "Represents an unnumbered interface:
          octets   contents               encoding
           1-4     unnumbered interface   network-byte order
          The corresponding TeHopAddressType value is
          unnum(5)."
      SYNTAX      OCTET STRING(SIZE(4))

END

References

Normative References

RFC2113 Katz, D., "IP Router Alert Option", RFC 2113, February

         1997.

RFC2119 Bradner, S., "Key words for use in RFCs to Indicate

         Requirement Levels", BCP 14, RFC 2119, March 1997.

RFC2434 Narten, T. and H. Alvestrand, "Guidelines for Writing an

         IANA Considerations Section in RFCs", BCP: 26, RFC 2434,
         October 1998.

RFC2578 McCloghrie, K., Perkins, D., and J. Schoenwaelder,

         "Structure of Management Information Version 2 (SMIv2)",
         STD 58, RFC 2578, April 1999.

RFC2579 McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Textual

         Conventions for SMIv2", STD 58, RFC 2579, April 1999.

RFC2580 McCloghrie, K., Perkins, D., and J. Schoenwaelder,

         "Conformance Statements for SMIv2", STD 58, RFC 2580, April
         1999.

RFC3031 Rosen, E., Viswananthan, A., and R. Callon, "Multiprotocol

         Label Switching Architecture", RFC 3031, January 2001.

RFC3032 Rosen, E., Rekhter, Y., Tappan, D., Farinacci, D.,

         Federokow, G., Li, T., and A. Conta, "MPLS Label Stack
         Encoding", RFC 3032, January 2001.

RFC3034 Conta, A., Doolan, P., and A. Malis, "Use of Label

         Switching on Frame Relay Networks Specification", RFC 3034,
         January 2001.

RFC3035 Davie, B., Lawrence, J., McCloghrie, K., Rosen, E.,

         Swallow, G., Rekhter, Y., and P. Doolan, "MPLS using LDP
         and ATM VC Switching", RFC 3035, January 2001.

RFC3036 Andersson, L., Doolan, P., Feldman, N., Fredette, A., and

         B. Thomas, "LDP Specification", RFC 3036, January 2001.

RFC3209 Awduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V.,

         and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP
         Tunnels", RFC 3209, December 2001.

RFC3212 Jamoussi, B., Ed., Andersson, L., Callon, R., Dantu, R.,

         Wu, L., Doolan, P., Worster, T., Feldman, N., Fredette, A.,
         Girish, M., Gray, E., Heinanen, J., Kilty, T., and A.
         Malis,  "Constraint-Based LSP Setup using LDP", RFC 3212,
         January 2002.

RFC3291 Daniele, M., Haberman, B., Routhier, S., and J.

         Schoenwaelder, "Textual Conventions for Internet Network
         Addresses", RFC 3291, May 2002.

RFC3471 Berger, L., Editor, "Generalized Multi-Protocol Label

         Switching (GMPLS) Architecture", RFC 3471, January 2003.

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.

Security Considerations

This module does not define any management objects. Instead, it defines a set of textual conventions which may be used by other MPLS MIB modules to define management objects.

Meaningful security considerations can only be written in the MIB modules that define management objects. Therefore, this document has no impact on the security of the Internet.

IANA Considerations

IANA has made a MIB OID assignment under the transmission branch, that is, assigned the mplsStdMIB under { transmission 166 }. This sub-id is requested because 166 is the ifType for mpls(166) and is available under transmission.

In the future, MPLS related standards track MIB modules should be rooted under the mplsStdMIB subtree. The IANA is requested to manage that namespace. New assignments can only be made via a Standards Action as specified in RFC2434.

The IANA has also assigned { mplsStdMIB 1 } to the MPLS-TC-STD-MIB specified in this document.

Contributors

This document was created by combining TEXTUAL-CONVENTIONS from current MPLS MIBs and a TE-WG MIB. Co-authors on each of these MIBs contributed to the TEXTUAL-CONVENTIONS contained in this MIB and also contributed greatly to the revisions of this document. These co- authors addresses are included here because they are useful future contacts for information about this document. These co-authors are:

  Cheenu Srinivasan
  Bloomberg L.P.
  499 Park Ave.
  New York, NY  10022
  Phone: +1-212-893-3682
  EMail: [email protected]
  Arun Viswanathan
  Force10 Networks, Inc.
  1440 McCarthy Blvd
  Milpitas, CA  95035
  Phone: +1-408-571-3516
  EMail: [email protected]
  Hans Sjostrand
  ipUnplugged
  P.O. Box 101 60
  S-121 28 Stockholm, Sweden
  Phone: +46-8-725-5900
  EMail: [email protected]
  Kireeti Kompella
  Juniper Networks
  1194 Mathilda Ave
  Sunnyvale, CA  94089
  Phone: +1-408-745-2000
  EMail: [email protected]

Acknowledgements

This document is a product of the MPLS Working Group. The editors and contributors would like to thank Mike MacFadden and Adrian Farrel for their helpful comments on several reviews. Also, the editors and contributors would like to give a special acknowledgement to Bert Wijnen for his many detailed reviews. Bert's assistance and guidance is greatly appreciated.

Authors' Addresses

Thomas D. Nadeau Cisco Systems, Inc. BXB300/2/ 300 Beaver Brook Road Boxborough, MA 01719

Phone: +1-978-936-1470 EMail: [email protected]

Joan E. Cucchiara Marconi Communications, Inc. 900 Chelmsford Street Lowell, MA 01851

Phone: +1-978-275-7400 EMail: [email protected]

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