rfc1286.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

   dot1dStpPortState OBJECT-TYPE
       SYNTAX  INTEGER {
                   disabled(1),
                   blocking(2),
                   listening(3),
                   learning(4),
                   forwarding(5),
                   broken(6)
               }
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The port's current state as defined by
               application of the Spanning Tree Protocol.  This
               state controls what action a port takes on
               reception of a frame.  If the bridge has detected
               a port that is malfunctioning it will place that
               port into the broken(6) state.  For ports which
               are disabled (see dot1dStpPortEnable), this object
               will have a value of disabled(1)."



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       REFERENCE
               "P802.1d/D9, July 14, 1989: Section 4.5.5.2"
       ::= { dot1dStpPortEntry 3 }

   dot1dStpPortEnable OBJECT-TYPE
       SYNTAX  INTEGER {
                   enabled(1),
                   disabled(2)
               }
       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "The enabled/disabled status of the port."
       REFERENCE
               "P802.1d/D9, July 14, 1989: Section 4.5.5.2"
       ::= { dot1dStpPortEntry 4 }

   dot1dStpPortPathCost OBJECT-TYPE
       SYNTAX  INTEGER (1..65535)
       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "The contribution of this port to the path cost of
               paths towards the spanning tree root which include
               this port."
       REFERENCE
               "P802.1d/D9, July 14, 1989: Section 4.5.5.3"
       ::= { dot1dStpPortEntry 5 }

   dot1dStpPortDesignatedRoot OBJECT-TYPE
       SYNTAX  BridgeId
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The unique Bridge Identifier of the Bridge
               recorded as the Root in the Configuration BPDUs
               transmitted by the Designated Bridge for the
               segment to which the port is attached."
       REFERENCE
               "P802.1d/D9, July 14, 1989: Section 4.5.5.4"
       ::= { dot1dStpPortEntry 6 }

   dot1dStpPortDesignatedCost OBJECT-TYPE
       SYNTAX  INTEGER
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The path cost of the Designated Port of the



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               segment connected to this port.  This value is
               compared to the Root Path Cost field in received
               bridge PDUs."
       REFERENCE
               "P802.1d/D9, July 14, 1989: Section 4.5.5.5"
       ::= { dot1dStpPortEntry 7 }

   dot1dStpPortDesignatedBridge OBJECT-TYPE
       SYNTAX  BridgeId
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The Bridge Identifier of the bridge which this
               port considers to be the Designated Bridge for
               this port's segment."
       REFERENCE
               "P802.1d/D9, July 14, 1989: Section 4.5.5.6"
       ::= { dot1dStpPortEntry 8 }

   dot1dStpPortDesignatedPort OBJECT-TYPE
       SYNTAX  OCTET STRING (SIZE (2))
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The Port Identifier of the port on the Designated
               Bridge for this port's segment."
       REFERENCE
               "P802.1d/D9, July 14, 1989: Section 4.5.5.7"
       ::= { dot1dStpPortEntry 9 }

   dot1dStpPortForwardTransitions OBJECT-TYPE
       SYNTAX  Counter
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The number of times this port has transitioned
               from the Learning state to the Forwarding state."
       ::= { dot1dStpPortEntry 10 }


   -- the dot1dSr group

   -- Implementation of the dot1dSr group is optional.  It is
   -- implemented by those bridges that support the source route
   -- bridging mode, including Source Route and SRT bridges.






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   dot1dSrPortTable OBJECT-TYPE
       SYNTAX  SEQUENCE OF Dot1dSrPortEntry
       ACCESS  not-accessible
       STATUS  mandatory
       DESCRIPTION
               "A table that contains information about every
               port that is associated with this source route
               bridge."
       ::= { dot1dSr 1 }

   dot1dSrPortEntry OBJECT-TYPE
       SYNTAX  Dot1dSrPortEntry
       ACCESS  not-accessible
       STATUS  mandatory
       DESCRIPTION
               "A list of information for each port of a source
               route bridge."
       INDEX   { dot1dSrPort }
       ::= { dot1dSrPortTable 1 }

   Dot1dSrPortEntry ::=
       SEQUENCE {
           dot1dSrPort
               INTEGER,
           dot1dSrPortHopCount
               INTEGER,
           dot1dSrPortLocalSegment
               INTEGER,
           dot1dSrPortBridgeNum
               INTEGER,
           dot1dSrPortTargetSegment
               INTEGER,
           dot1dSrPortLargestFrame
               INTEGER,
           dot1dSrPortSTESpanMode
               INTEGER,
           dot1dSrPortSpecInFrames
               Counter,
           dot1dSrPortSpecOutFrames
               Counter,
           dot1dSrPortApeInFrames
               Counter,
           dot1dSrPortApeOutFrames
               Counter,
           dot1dSrPortSteInFrames
               Counter,
           dot1dSrPortSteOutFrames
               Counter,



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           dot1dSrPortSegmentMismatchDiscards
               Counter,
           dot1dSrPortDuplicateSegmentDiscards
               Counter,
           dot1dSrPortHopCountExceededDiscards
               Counter
       }

   dot1dSrPort OBJECT-TYPE
       SYNTAX  INTEGER
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The port number of the port for which this entry
               contains Source Route management information."
       ::= { dot1dSrPortEntry 1 }

   dot1dSrPortHopCount OBJECT-TYPE
       SYNTAX  INTEGER
       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "The maximum number of routing descriptors allowed
               in an All Paths or Spanning Tree Explorer frames."
       ::= { dot1dSrPortEntry 2 }

   dot1dSrPortLocalSegment OBJECT-TYPE
       SYNTAX  INTEGER
       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "The segment number that uniquely identifies the
               segment to which this port is connected. Current
               source routing protocols limit this value to the
               range: 0 through 4095. A value of 65535 signifies
               that no segment number is assigned to this port."
       ::= { dot1dSrPortEntry 3 }

   dot1dSrPortBridgeNum OBJECT-TYPE
       SYNTAX  INTEGER
       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "A bridge number uniquely identifies a bridge when
               more than one bridge is used to span the same two
               segments.  Current source routing protocols limit
               this value to the range: 0 through 15. A value of
               65535 signifies that no bridge number is assigned



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               to this bridge."
       ::= { dot1dSrPortEntry 4 }

   dot1dSrPortTargetSegment OBJECT-TYPE
       SYNTAX  INTEGER
       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "The segment number that corresponds to the target
               segment this port is considered to be connected to
               by the bridge.  Current source routing protocols
               limit this value to the range: 0 through 4095. A
               value of 65535 signifies that no target segment is
               assigned to this port."
       ::= { dot1dSrPortEntry 5 }

   -- It would be nice if we could use ifMtu as the size of the
   -- largest frame, but we can't because ifMtu is defined to be
   -- the size that the (inter-)network layer can use which can
   -- differ from the MAC layer (especially if several layers of
   -- encapsulation are used).

   dot1dSrPortLargestFrame OBJECT-TYPE
       SYNTAX  INTEGER {
                   dot1dSrMtu516   (516),
                   dot1dSrMtu1500  (1500),
                   dot1dSrMtu2052  (2052),
                   dot1dSrMtu4472  (4472),
                   dot1dSrMtu8144  (8144),
                   dot1dSrMtu11407 (11407), -- yes this is correct don't
                   dot1dSrMtu17800 (17800), -- ask me where it came from.
                   dot1dSrMtu65535 (65535)
               }

       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "The maximum size of the INFO field (LLC and
               above) that this port can send/receive.  It does
               not include any MAC level (framing) octets.  The
               value of this object is used by this bridge to
               determine whether a modification of the
               LargestFrame (LF, see [14]) field of the Routing
               Control field of the Routing Information Field is
               necessary.  Valid values as defined by the 802.5
               source routing bridging specification[14] are 516,
               1500, 2052, 4472, 8144, 11407, 17800, and 65535
               octets.  Behavior of the port when an illegal



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               value is written is implementation specific.  It
               is recommended that a reasonable legal value be
               chosen."
       ::= { dot1dSrPortEntry 6 }

   dot1dSrPortSTESpanMode OBJECT-TYPE
       SYNTAX  INTEGER {
                   auto-span(1),
                   disabled(2),
                   forced(3)
               }
       ACCESS  read-write
       STATUS  mandatory
       DESCRIPTION
               "Determines how this port behaves when presented
               with a Spanning Tree Explorer frame.  The value
               'disabled(2)' indicates that the port will not
               accept or send Spanning Tree Explorer packets; any
               STE packets received will be silently discarded.
               The value 'forced(3)' indicates the port will
               always accept and propagate Spanning Tree Explorer
               frames.  This allows a manually configured
               Spanning Tree for this class of packet to be
               configured.  Note that unlike transparent bridging
               this is not catastrophic to the network if there
               are loops.  The value 'auto-span(1)' can only be
               returned by a bridge that both implements the
               Spanning Tree Protocol and has use of the protocol
               enabled on this port. The behavior of the port for
               Spanning Tree Explorer frames is determined by the
               state of dot1dStpPortState.  If the port is in the
               'forwarding' state, the frame will be accepted or
               propagated.  Otherwise it will be silently
               discarded."
       ::= { dot1dSrPortEntry 7 }

   dot1dSrPortSpecInFrames OBJECT-TYPE
       SYNTAX  Counter
       ACCESS  read-only
       STATUS  mandatory
       DESCRIPTION
               "The number of specifically routed frames that
               have been received from this port's segment."
       ::= { dot1dSrPortEntry 8 }

   dot1dSrPortSpecOutFrames OBJECT-TYPE
       SYNTAX  Counter
       ACCESS  read-only



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       STATUS  mandatory
       DESCRIPTION