rfc2096.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

       Protocols defining 'policy' otherwise must  ei-
       ther define a set of values which are valid for
       this  object  or  must  implement  an  integer-
       instanced  policy table for which this object's
       value acts as an index."
    ::= { ipForwardEntry 3 }

ipForwardNextHop OBJECT-TYPE
    SYNTAX   IpAddress
    MAX-ACCESS read-only
    STATUS   obsolete
    DESCRIPTION
       "On remote routes, the address of the next sys-
       tem en route; Otherwise, 0.0.0.0."
    ::= { ipForwardEntry 4 }

ipForwardIfIndex OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "The ifIndex value which identifies  the  local
       interface  through  which  the next hop of this
       route should be reached."
    DEFVAL { 0 }
    ::= { ipForwardEntry 5 }

ipForwardType OBJECT-TYPE
    SYNTAX   INTEGER {
                other    (1), -- not specified by this MIB
                invalid  (2), -- logically deleted
                local    (3), -- local interface
                remote   (4)  -- remote destination
             }
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "The type of route.  Note that local(3)  refers
       to  a route for which the next hop is the final
       destination; remote(4) refers to  a  route  for
       which  the  next  hop is not the final destina-
       tion.

       Setting this object to the value invalid(2) has
       the  effect  of  invalidating the corresponding
       entry in the ipForwardTable object.   That  is,
       it  effectively  disassociates  the destination
       identified with said entry from the route iden-



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       tified    with    said   entry.    It   is   an
       implementation-specific matter  as  to  whether
       the agent removes an invalidated entry from the
       table.  Accordingly, management  stations  must
       be prepared to receive tabular information from
       agents that corresponds to entries not current-
       ly  in  use.  Proper interpretation of such en-
       tries requires examination of the relevant  ip-
       ForwardType object."
    DEFVAL { invalid }
    ::= { ipForwardEntry 6 }

ipForwardProto OBJECT-TYPE
    SYNTAX   INTEGER {
                other     (1),  -- not specified
                local     (2),  -- local interface
                netmgmt   (3),  -- static route
                icmp      (4),  -- result of ICMP Redirect

                        -- the following are all dynamic
                        -- routing protocols
                egp       (5),  -- Exterior Gateway Protocol
                ggp       (6),  -- Gateway-Gateway Protocol
                hello     (7),  -- FuzzBall HelloSpeak
                rip       (8),  -- Berkeley RIP or RIP-II
                is-is     (9),  -- Dual IS-IS
                es-is     (10), -- ISO 9542
                ciscoIgrp (11), -- Cisco IGRP
                bbnSpfIgp (12), -- BBN SPF IGP
                ospf      (13), -- Open Shortest Path First
                bgp       (14), -- Border Gateway Protocol
                idpr      (15)  -- InterDomain Policy Routing
             }
    MAX-ACCESS read-only
    STATUS   obsolete
    DESCRIPTION
       "The routing mechanism via which this route was
       learned.  Inclusion of values for gateway rout-
       ing protocols is not  intended  to  imply  that
       hosts should support those protocols."
    ::= { ipForwardEntry 7 }

ipForwardAge OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-only
    STATUS   obsolete
    DESCRIPTION
       "The number of seconds  since  this  route  was



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       last  updated  or  otherwise  determined  to be
       correct.  Note that no semantics of  `too  old'
       can  be implied except through knowledge of the
       routing  protocol  by  which  the   route   was
       learned."
    DEFVAL  { 0 }
    ::= { ipForwardEntry 8 }

ipForwardInfo OBJECT-TYPE
    SYNTAX   OBJECT IDENTIFIER
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "A reference to MIB definitions specific to the
       particular  routing protocol which is responsi-
       ble for this route, as determined by the  value
       specified  in the route's ipForwardProto value.
       If this information is not present,  its  value
       should be set to the OBJECT IDENTIFIER { 0 0 },
       which is a syntactically valid object  identif-
       ier, and any implementation conforming to ASN.1
       and the Basic Encoding Rules must  be  able  to
       generate and recognize this value."
    ::= { ipForwardEntry 9 }

ipForwardNextHopAS OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "The Autonomous System Number of the Next  Hop.
       When  this  is  unknown  or not relevant to the
       protocol indicated by ipForwardProto, zero."
    DEFVAL { 0 }
    ::= { ipForwardEntry 10 }

ipForwardMetric1 OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "The primary routing  metric  for  this  route.
       The  semantics of this metric are determined by
       the routing-protocol specified in  the  route's
       ipForwardProto  value.   If  this metric is not
       used, its value should be set to -1."
    DEFVAL { -1 }
    ::= { ipForwardEntry 11 }



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ipForwardMetric2 OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "An alternate routing metric  for  this  route.
       The  semantics of this metric are determined by
       the routing-protocol specified in  the  route's
       ipForwardProto  value.   If  this metric is not
       used, its value should be set to -1."

    DEFVAL { -1 }
    ::= { ipForwardEntry 12 }

ipForwardMetric3 OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "An alternate routing metric  for  this  route.
       The  semantics of this metric are determined by
       the routing-protocol specified in  the  route's
       ipForwardProto  value.   If  this metric is not
       used, its value should be set to -1."
    DEFVAL { -1 }
    ::= { ipForwardEntry 13 }

ipForwardMetric4 OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "An alternate routing metric  for  this  route.
       The  semantics of this metric are determined by
       the routing-protocol specified in  the  route's
       ipForwardProto  value.   If  this metric is not
       used, its value should be set to -1."
    DEFVAL { -1 }
    ::= { ipForwardEntry 14 }

ipForwardMetric5 OBJECT-TYPE
    SYNTAX   Integer32
    MAX-ACCESS read-create
    STATUS   obsolete
    DESCRIPTION
       "An alternate routing metric  for  this  route.
       The  semantics of this metric are determined by
       the routing-protocol specified in  the  route's



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       ipForwardProto  value.   If  this metric is not
       used, its value should be set to -1."
    DEFVAL { -1 }
    ::= { ipForwardEntry 15 }

-- Obsoleted Definitions - Groups
-- compliance statements

ipForwardOldCompliance MODULE-COMPLIANCE
   STATUS  obsolete
   DESCRIPTION
       "The compliance statement for SNMP entities
       which implement the ipForward MIB."

   MODULE  -- this module
   MANDATORY-GROUPS { ipForwardMultiPathGroup }

   ::= { ipForwardCompliances 2 }

ipForwardMultiPathGroup OBJECT-GROUP
    OBJECTS { ipForwardNumber,
              ipForwardDest, ipForwardMask, ipForwardPolicy,
              ipForwardNextHop, ipForwardIfIndex, ipForwardType,
              ipForwardProto, ipForwardAge, ipForwardInfo,
              ipForwardNextHopAS,
              ipForwardMetric1, ipForwardMetric2, ipForwardMetric3,
              ipForwardMetric4, ipForwardMetric5
        }
    STATUS  obsolete
    DESCRIPTION
       "IP Multipath Route Table."
    ::= { ipForwardGroups 2 }

END

















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RFC 2096                IP Forwarding Table MIB             January 1997


5.  Acknowledgements

   This work was originally performed by the Router Requirements
   Working Group at the request of the OSPF Working Group.  This update
   was performed under the auspices of the OSPF Working Group.  John Moy
   of Proteon Incorporated is the chair.

6.  References

[1]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
     "Structure of Management Information for version 2 of the
     Simple Network Management Protocol (SNMPv2)", RFC 1442,
     SNMP Research, Inc., Hughes LAN Systems, Dover Beach
     Consulting, Inc., Carnegie Mellon University, April 1993.

[2]  Galvin, J., and K. McCloghrie, "Administrative Model for
     version 2 of the Simple Network Management Protocol
     (SNMPv2)", RFC 1445, Trusted Information Systems, Hughes
     LAN Systems, April 1993.

[3]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
     "Protocol Operations for version 2 of the Simple Network
     Management Protocol (SNMPv2)", RFC 1448, SNMP Research,
     Inc., Hughes LAN Systems, Dover Beach Consulting, Inc.,
     Carnegie Mellon University, April 1993.

[4]  McCloghrie, K., and M. Rose, "Management Information Base
     for Network Management of TCP/IP-based internets - MIB-
     II", STD 17, RFC 1213, Hughes LAN Systems, Performance
     Systems International, March 1991.

[5]  Postel, J., "Internet Protocol", STD 5, RFC 791,
     USC/Information Sciences Institute, September 1981.

[6]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
     "Textual Conventions for version 2 of the Simple Network
     Management Protocol (SNMPv2)", RFC 1443, SNMP Research,
     Inc., Hughes LAN Systems, Dover Beach Consulting, Inc.,
     Carnegie Mellon University, April 1993.

[7]  Baker, F., "IP Forwarding Table MIB", RFC 1354, July 1992.










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RFC 2096                IP Forwarding Table MIB             January 1997


7.  Security Considerations

   Security is an objective not in this MIB view.

8.  Author's Address

   Fred Baker
   Cisco Systems
   519 Lado Drive
   Santa Barbara, California 93111

   Phone: [phone]
   EMail: [e-mail]






































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