rfc1559.txt

<VC++网络游戏建摸与实现>源代码

DECnet Phase IV MIB Working Group                              [Page 14]

RFC 1559                  DECnet Phase IV MIB              December 1993


   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)
        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



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RFC 1559                  DECnet Phase IV MIB              December 1993


             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 }

   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



DECnet Phase IV MIB Working Group                              [Page 16]

RFC 1559                  DECnet Phase IV MIB              December 1993


            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
            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 }




DECnet Phase IV MIB Working Group                              [Page 17]

RFC 1559                  DECnet Phase IV MIB              December 1993


   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 }

   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



DECnet Phase IV MIB Working Group                              [Page 18]

RFC 1559                  DECnet Phase IV MIB              December 1993


            circuits. When this timer expires before a routing
            update occurs, a routing update is forced."
        ::= { routing 12 }

   phivRouteSegBuffSize OBJECT-TYPE
        SYNTAX INTEGER (1..65535)
        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
        SYNTAX INTEGER {
            routing-III (1),
            nonrouting-III (2),
            area (3),
            routing-IV (4),
            nonrouting-IV (5)
        }
        ACCESS read-only
        STATUS obsolete
        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
            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.



DECnet Phase IV MIB Working Group                              [Page 19]

RFC 1559                  DECnet Phase IV MIB              December 1993



            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 }

   phivRouteCountPacketFmtErr OBJECT-TYPE
        SYNTAX PhivCounter (0..127)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "Number of packet format errors."
        ::= { routing 19 }




DECnet Phase IV MIB Working Group                              [Page 20]

RFC 1559                  DECnet Phase IV MIB              December 1993


   phivRouteCountPtlRteUpdtLoss OBJECT-TYPE
        SYNTAX PhivCounter (0..127)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "Number of partial routing update losses."
        ::= { routing 20 }

   phivRouteCountVerifReject OBJECT-TYPE
        SYNTAX PhivCounter (0..127)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "Number of verification rejects."
        ::= { routing 21 }

   -- Level 1 Routing Table

   phivLevel1RouteTable OBJECT-TYPE
        SYNTAX SEQUENCE OF PhivLevel1RouteEntry
        ACCESS not-accessible
        STATUS mandatory
        DESCRIPTION
            "Information about the currently known DECnet Phase
            IV Routes."
        ::= { routing 22 }

   phivLevel1RouteEntry OBJECT-TYPE
        SYNTAX PhivLevel1RouteEntry
        ACCESS not-accessible
        STATUS mandatory
        DESCRIPTION
            "Information about the currently known DECnet Phase
            IV Routes."
        INDEX  { phivLevel1RouteNodeAddr }
        ::= { phivLevel1RouteTable 1 }

   PhivLevel1RouteEntry ::=
        SEQUENCE {
            phivLevel1RouteNodeAddr
                PhivAddr,
            phivLevel1RouteCircuitIndex
                INTEGER,
            phivLevel1RouteCost
                INTEGER,
            phivLevel1RouteHops
                INTEGER,