rfc2320.txt

RFC 的详细文档！

  (ipoaArpSrvrAddr) to exist.  The values of the index elements when
  combined to index a row must be unique.


3.3.2.  Notifications

  An ATMARP Server MUST support the following notifications:

       o ipoaDuplicateIpAddress
       o ipoaLisCreate
       o ipoaLisDelete

  Generation of ipoaLisCreate and ipoaLisDelete notifications is
  controlled by the ipoaLisTrapEnable object.  These notifications
  indicate when an ipoaLisEntry is either created or deleted.  The
  purpose of these notifications is to enable Network Management
  Applications to dynamically discover the existence of ATMARP Server
  LIS participation in order to eventually determine LIS composition via
  subsequent SNMP queries.  It is permissible for an ATM client-only
  system to support the ipoaLisTrapEnable object and generate
  ipoaLisCreate and ipoaLisDelete notifications.






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RFC 2320             IP and ARP over ATM (IPOA) MIB           April 1998


4.  Definitions

  IPOA-MIB DEFINITIONS ::= BEGIN

  IMPORTS
      MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
      transmission, Integer32, IpAddress, Counter32,
      Gauge32
          FROM SNMPv2-SMI
      TEXTUAL-CONVENTION, RowStatus
          FROM SNMPv2-TC
      MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
          FROM SNMPv2-CONF
      ipNetToMediaNetAddress, ipNetToMediaIfIndex,
      ipNetToMediaPhysAddress, ipAdEntAddr
          FROM IP-MIB

  --  The following textual conventions are defined locally within
  --  this MIB module.  They have been prefixed with 'Ipoa' to
  --  distinguish them from their counterparts in the ATM-TC-MIB.
  --  This was done so that the IPOA-MIB could be advanced as
  --  a standards-based MIB without waiting for the ATM-TC-MIB.

  --  AtmConnKind, AtmAddr
  --      FROM ATM-TC-MIB

      InterfaceIndex, InterfaceIndexOrZero
          FROM IF-MIB
      ;

  ipoaMIB MODULE-IDENTITY
      LAST-UPDATED "9802090000Z" -- February 9, 1998
      ORGANIZATION "IETF Internetworking Over NBMA Working
                    Group (ion)"
      CONTACT-INFO
          "Maria Greene ([e-mail])
           Xedia Corp.

           Jim Luciani ([e-mail])
           Bay Networks

           Kenneth White ([e-mail])
           IBM Corp.

           Ted Kuo ([e-mail])
           Bay Networks"
      DESCRIPTION
          "This module defines a portion of the management



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RFC 2320             IP and ARP over ATM (IPOA) MIB           April 1998


          information base (MIB) for managing Classical IP and
          ARP over ATM entities."
      ::= { transmission 46 }

  -- Textual Conventions

  IpoaEncapsType ::= TEXTUAL-CONVENTION
      STATUS      current
      DESCRIPTION
          "The encapsulation type used on a VC."
      SYNTAX      INTEGER {
                      llcSnap(1),
                      vcMuxed(2),
                      other(3)
                  }

  IpoaVpiInteger ::= TEXTUAL-CONVENTION
      STATUS     current
      DESCRIPTION
          "An integer large enough to contain the value of a VPI."
      SYNTAX     Integer32 (0..255)

  IpoaVciInteger ::= TEXTUAL-CONVENTION
      STATUS     current
      DESCRIPTION
          "An integer large enough to contain the value of a VCI."
      SYNTAX     Integer32 (0..65535)

  IpoaAtmAddr ::= TEXTUAL-CONVENTION
      DISPLAY-HINT "1x"
      STATUS  current
      DESCRIPTION
         "The ATM address used by the network entity.
          The semantics are implied by the length.
          The address types are:

          - no address (0 octets)
          - E.164 (8 octets)
          - NSAP (20 octets)

          In addition, when subaddresses are used IpoaAtmAddr
          may represent the concatenation of address and
          subaddress.  The associated address types are:

          - E.164, E.164 (16 octets)
          - E.164, NSAP (28 octets)
          - NSAP, NSAP (40 octets)




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RFC 2320             IP and ARP over ATM (IPOA) MIB           April 1998


          Address lengths other than defined in this definition
          imply address types defined elsewhere.
          Note: The E.164 address is encoded in BCD format."
      SYNTAX   OCTET STRING (SIZE(0..40))

  IpoaAtmConnKind ::= TEXTUAL-CONVENTION
      STATUS  current
      DESCRIPTION
         "The use of call control.  The use is as follows:
             pvc(1)
                Virtual link of a PVC.  Should not be
                used in a PVC/SVC (i.e., SPVC)
                crossconnect.
             svcIncoming(2)
                Virtual link established after a
                received signaling request to setup
                an SVC.
             svcOutgoing(3)
                Virtual link established after a
                transmitted or forwarded signaling
                request to setup an SVC.
             spvcInitiator(4)
                Virtual link at the PVC side of an
                SVC/PVC crossconnect, where the
                switch is the initiator of the SPVC
                setup.
             spvcTarget(5)
                Virtual link at the PVC side of an
                SVC/PVC crossconnect, where the
                switch is the target of the SPVC
                setup.

          An spvcInitiator is always cross-connected to
          an svcOutgoing, and an spvcTarget is always
          cross-connected to an svcIncoming."
      SYNTAX   INTEGER {
                        pvc(1),
                        svcIncoming(2),
                        svcOutgoing(3),
                        spvcInitiator(4),
                        spvcTarget(5)
                       }

  -- Top-level structure of the MIB

  ipoaObjects        OBJECT IDENTIFIER ::= { ipoaMIB 1 }
  ipoaNotifications  OBJECT IDENTIFIER ::= { ipoaMIB 2 }
  ipoaConformance    OBJECT IDENTIFIER ::= { ipoaMIB 3 }



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RFC 2320             IP and ARP over ATM (IPOA) MIB           April 1998


  -- MIB Objects

  ipoaLisTrapEnable  OBJECT-TYPE
      SYNTAX      INTEGER { enabled(1), disabled(2) }
      MAX-ACCESS  read-write
      STATUS      current
      DESCRIPTION
         "Indicates whether ipoaLisCreate and ipoaLisDelete
          traps should be generated by this system.

          By default, this object should have the value
          enabled(1) for systems where ATMARP Servers are
          present and disabled(2) on systems where only
          clients reside."
      ::= { ipoaObjects 1 }

  -- The ATM Logical IP Subnet (LIS) Table

  ipoaLisTable OBJECT-TYPE
      SYNTAX      SEQUENCE OF IpoaLisEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "There is one entry in this table for every Logical IP
          Subnet (LIS) of which this system is a member.

          The bulk of the objects in an ipoaLisEntry exists
          to control ATMARP for a particular LIS.  In a PVC only
          environment it is implementation dependent as to
          whether this table should be supported."
      ::= { ipoaObjects 2 }

  ipoaLisEntry OBJECT-TYPE
      SYNTAX      IpoaLisEntry
      MAX-ACCESS  not-accessible
      STATUS      current
      DESCRIPTION
          "Information about a single LIS of which this system
          is a member.

          Membership in a LIS is independent of the actual ATM
          interfaces being used.  The ipoaLisTable defines
          all LISs that a system is a member of.  The ipAddrTable
          and the ipoaClientTable provides the mapping from local
          IP address to ATM interface.  The ipoaLisIfMappingTable
          provides the mappings between Logical IP Subnets and
          interfaces.




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RFC 2320             IP and ARP over ATM (IPOA) MIB           April 1998


          The ipoaLisTable is indexed by ipoaLisSubnetAddr (IP
          subnet address).  An entry in the ipoaLisTable should
          exist for each ipAddrEntry that is associated with an
          ATM related interface used for Classical IP and ARP
          over ATM traffic.

          Its ipAdEntAddr and ipAdEntNetMask when ANDed together
          should equal the ipoaLisSubnetAddr of the corresponding
          ipoaLisEntry."
      INDEX       { ipoaLisSubnetAddr }
      ::= { ipoaLisTable 1 }

  IpoaLisEntry ::= SEQUENCE {
      ipoaLisSubnetAddr          IpAddress,
      ipoaLisDefaultMtu          Integer32,
      ipoaLisDefaultEncapsType   IpoaEncapsType,
      ipoaLisInactivityTimer     Integer32,
      ipoaLisMinHoldingTime      Integer32,
      ipoaLisQDepth              Integer32,
      ipoaLisMaxCalls            Integer32,
      ipoaLisCacheEntryAge       Integer32,
      ipoaLisRetries             Integer32,
      ipoaLisTimeout             Integer32,
      ipoaLisDefaultPeakCellRate Integer32,
      ipoaLisActiveVcs           Gauge32,
      ipoaLisRowStatus           RowStatus
  }

  ipoaLisSubnetAddr OBJECT-TYPE
      SYNTAX      IpAddress
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "The IP subnet address associated with this LIS."
      ::= { ipoaLisEntry 1 }

  ipoaLisDefaultMtu OBJECT-TYPE
      SYNTAX      Integer32 (0..65535)
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The default MTU used within this LIS.  Note that the
          actual MTU used for a VC between two members of the
          LIS may be negotiated during connection setup and may
          be different than this value.  The ipoaVcNegotiatedMtu
          object indicates the actual MTU in use for a
          particular VC."
      DEFVAL { 9180 }



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RFC 2320             IP and ARP over ATM (IPOA) MIB           April 1998


      ::= { ipoaLisEntry 2 }

  ipoaLisDefaultEncapsType OBJECT-TYPE
      SYNTAX      IpoaEncapsType
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The default encapsulation to use on VCs created for
          this LIS.  Note that the actual encapsulation type may
          be negotiated during connection setup and may be
          different than this value.  The
          ipoaVcNegotiatedEncapsType object indicates the actual
          encapsulation in use for a particular VC."
      DEFVAL { llcSnap }
      ::= { ipoaLisEntry 3 }

  ipoaLisInactivityTimer OBJECT-TYPE
      SYNTAX      Integer32
      UNITS       "seconds"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The time, in seconds, before a call established for an
          ipNetToMediaEntry on a client will timeout due to no
          traffic being passed on the VC.  A value of 0 implies
          no time out."
      REFERENCE
          "RFC 1755, Sec. 3.4 VC Teardown"
      DEFVAL      { 1200 }
      ::= { ipoaLisEntry 4 }

  ipoaLisMinHoldingTime OBJECT-TYPE
      SYNTAX      Integer32 (0..65535)
      UNITS       "seconds"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION
          "The minimum amount of time, in seconds, that a call
          will remain open.  If 0 then ipoaInactivityTimer will