mpls-tc-std-mib

很不错java的SNMP应用例子

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.
                     [e-mail]

                     Joan Cucchiara
                     Marconi Communications, Inc.
                     [e-mail]

                     Cheenu Srinivasan
                     Bloomberg L.P.
                     [e-mail]

                     Arun Viswanathan
                     Force10 Networks, Inc.
                     [e-mail]

                     Hans Sjostrand
                     ipUnplugged
                     [e-mail]

                     Kireeti Kompella
                     Juniper Networks
                     [e-mail]

          Email comments to the MPLS WG Mailing List at
          [e-mail]."
       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