rfc1289.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

               source End Communication at the executor node will
               restart the retransmission timer when it expires. If
               the number is exceeded, Session Control disconnects the
               logical link for the user."
           ::= { end 5 }

       phivEndDelayFact OBJECT-TYPE
           SYNTAX INTEGER (1..255)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This is the number by which to multiply one sixteenth
               of the estimated round trip delay to a node to set the
               retransmission timer to that node."
           ::= { end 6 }

       phivEndDelayWeight OBJECT-TYPE
           SYNTAX INTEGER (1..255)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This number represents the weight to apply to a
               current round trip delay estimate to a remote node
               when updating the estimated round trip delay to a node.
               On some systems the number must be 1 less than a power
               of 2 for computational efficiency."
           ::= { end 7 }

       phivEndInactivityTimer OBJECT-TYPE
           SYNTAX INTEGER (1..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum duration of inactivity
               (no data in either direction) on a logical link before
               the node checks to see if the logical link still works.



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RFC 1289                  DECnet Phase IV MIB              December 1991


               If no activity occurs within the minimum number of
               seconds, End Communication generates artificial
               traffic to test the link (End Communication
               specification)."
           ::= { end 8 }

       phivEndCountZeroCount OBJECT-TYPE
           SYNTAX INTEGER {
             other (1),
             reset (2)
           }
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "When this value is set to 2, all of the counters in
               the End System Counter Table are set to zero."
           ::= { end 9 }

       phivEndMaxLinksActive OBJECT-TYPE
           SYNTAX PhivCounter (0..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the high water mark for the
               number of links that were active at any one time."
           ::= { end 10 }

       -- Routing Layer Group

       -- The implementation of the Routing Layer Group is mandatory for
       -- all systems that implement level 1 routing layer
       -- communications.

       phivRouteBroadcastRouteTimer OBJECT-TYPE
           SYNTAX INTEGER (1..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value determines the maximum time in seconds
                allowed between Routing updates on Ethernet
                circuits. When this timer expired before a routing
                update occurs, a routing update is forced.  With a
                standard calculation, Routing also uses this timer
                to enforce a minimum delay between routing updates."
           ::= { routing 1 }

       phivRouteBuffSize OBJECT-TYPE
           SYNTAX INTEGER (1..65535)



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           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This parameter value determines the maximum size of
                a Routing message. It therefore determines the maximum
                size message that can be forwarded.  This size includes
                protocol overhead down to and including the End
                Communication layer, plus a constant value of 6. (This
                value of 6 is included to provide compatibility with
                the parameter definition in Phase III, which included
                the Routing overhead.) It does not include Routing or
                Data link overhead (except for the constant value of
                6). There is one buffer size for all circuits.

                NOTE: The BUFFER SIZE defines the maximum size messages
                that the Routing layer can forward. The SEGMENT BUFFER
                SIZE (defined below) defines the maximum size messages
                that the End Communication layer can transmit or
                receive. The SEGMENT BUFFER SIZE is always less than
                or equal to the BUFFER SIZE. Normally the two
                parameters will be equal. They may be different to
                allow the network manager to alter buffer sizes
                on all nodes without interruption of service. They both
                include an extra 6 bytes for compatibility with Phase
                III."
           ::= { routing 2 }

       phivRouteRoutingVers OBJECT-TYPE
           SYNTAX DisplayString ( SIZE (0..255) )
           ACCESS read-only
           STATUS mandatory
           DESCRIPTION
               "This read-only parameter identifies the executor node's
               Routing version number.  The format is version number,
               ECO, and user ECO, e.g., 4.1.0"
           ::= { routing 3 }

       phivRouteMaxAddr OBJECT-TYPE
           SYNTAX INTEGER (1..1023)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the largest node number and,
               therefore, number of nodes that can be known about
               by the executor node's home area."
           ::= { routing 4 }





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       phivRouteMaxBdcastNonRouters OBJECT-TYPE
           SYNTAX INTEGER (0..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum total number of
               nonrouters the executor node can have on its Ethernet
               circuits."
           ::= { routing 5 }

       phivRouteMaxBdcastRouters OBJECT-TYPE
           SYNTAX INTEGER (0..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum total number of
               routers the executor node can have on its Ethernet
               circuits."
           ::= { routing 6 }

       phivRouteMaxBuffs OBJECT-TYPE
           SYNTAX INTEGER (1..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum number of transmit
               buffers that Routing may use for all circuits."
           ::= { routing 7 }

       phivRouteMaxCircuits OBJECT-TYPE
           SYNTAX INTEGER (1..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum number of Routing
               circuits that the executor node can know about."
           ::= { routing 8 }

       phivRouteMaxCost OBJECT-TYPE
           SYNTAX INTEGER (1..1022)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum total path cost
               allowed from the executor to any node within an area.
               The path cost is the sum of the circuit costs along
               a path between two nodes. This parameter defines the
               point where the executor node's Routing routing



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               decision algorithm declares another node unreachable
               because the cost of the least costly path to the
               other node is excessive. For correct operation, this
               parameter must not be less than the maximum path cost
               of the network."
           ::= { routing 9 }

       phivRouteMaxHops OBJECT-TYPE
           SYNTAX INTEGER (1..30)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum number of routing hops
               allowable from the executor to any other reachable node
               within an area. (A hop is the logical distance over a
               circuit between two adjacent nodes.) This parameter
               defines the point where the executor node's Routing
               routing decision algorithm declares another node
               unreachable because the length of the shortest path
               between the two nodes is too long. For correct
               operation, this parameter must not be less than the
               network diameter. (The network diameter is the
               reachability distance between the two nodes of the
               network having the greatest reachability distance,
               where reachability distance is the length the shortest
               path between a given pair of nodes.)"
           ::= { routing 10 }

       phivRouteMaxVisits OBJECT-TYPE
           SYNTAX INTEGER (1..63)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value represents the maximum number of nodes a
               message coming into the executor node can have visited.
               If the message is not for this node and the MAXIMUM
               VISITS number is exceeded, the message is discarded.
               The MAXIMUM VISITS parameter defines the point where
               the packet lifetime control algorithm discards
               a packet that has traversed too many nodes. For correct
               operation, this parameter must not be less than the
               maximum path length of the network. (The maximum path
               length is the routing distance between the two nodes of
               the network having the greatest routing distance, where
               routing distance is the length of the least costly
               path between a given pair of nodes.)"
           ::= { routing 11 }




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       phivRouteRoutingTimer OBJECT-TYPE
           SYNTAX INTEGER (1..65535)
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This value determines the maximum time in seconds
               allowed between Routing updates on non-Ethernet
               circuits. When this timer expires before a routing
               update occurs, a routing update is forced."
           ::= { routing 12 }

       phivRouteSegBuffSize OBJECT-TYPE
           SYNTAX INTEGER
           ACCESS read-write
           STATUS mandatory
           DESCRIPTION
               "This parameter value determines the maximum size of an
               end-to-end segment. The size is a decimal integer in
               the range 1-65535. This size is in bytes. This size
               includes protocol overhead down to and including the
               End Communication layer, plus a constant value of 6.
               (This value of 6 is included to provide compatibility
               with the BUFFER SIZE parameter definition.) It does not
               include Routing or Data link overhead (except for the
               constant value of 6)."
           ::= { routing 13 }

       phivRouteType OBJECT-TYPE
           SYNTAXINTEGER {
               routing-III (1),
               nonrouting-III (2),
               area (3),
               routing-IV (4),
               nonrouting-IV (5)
           }
           ACCESS read-only
           STATUS mandatory
           DESCRIPTION
               "This parameter indicates the type of the executor
               node. The node-type is one of the following:

               routing-III
               nonrouting-III
               routing-IV
               ronrouting-IV
               area

               A routing node has full routing capability. A



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               nonrouting node contains a subset of the Routing
               routing modules. The III and IV indicate the DNA
               phase of the node. Nonrouting nodes can deliver
               and receive packets to and from any node, but cannot
               route packets from other nodes through to other nodes.
               An area node routes between areas. Refer to the Routing
               specification for details.

               For adjacent nodes, this is a read-only parameter that
               indicates the type of the reachable adjacent node.
               NOTE: The ROUTING-III and NONROUTING-III values are
               incremented by one compared to the standard DECnet
               values in order to maintain compliance with RFC 1155)"
           ::= { routing 14 }

       phivRouteCountAgedPktLoss OBJECT-TYPE
           SYNTAX PhivCounter (0..127)
           ACCESS read-only
           STATUS mandatory
           DESCRIPTION
               "Number of aged packet losses."
           ::= { routing 15 }

       phivRouteCountNodeUnrPktLoss OBJECT-TYPE
           SYNTAX PhivCounter (0..65535)
           ACCESS read-only
           STATUS mandatory
           DESCRIPTION
               "Number of node unreachable packet losses."
           ::= { routing 16 }

       phivRouteCountOutRngePktLoss OBJECT-TYPE
           SYNTAX PhivCounter (0..127)
           ACCESS read-only
           STATUS mandatory
           DESCRIPTION
               "Number of node out-of-range packet losses."
           ::= { routing 17 }

       phivRouteCountOverSzePktLoss OBJECT-TYPE
           SYNTAX PhivCounter (0..127)
           ACCESS read-only
           STATUS mandatory
           DESCRIPTION
               "Number of Oversized packet losses."
           ::= { routing 18 }