DECnet Phase IV MIB Extensions
RFC 1559

        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "The line on which this entry's equivalence is effective.
            This is the same as the ifIndex."
        ::= { phivLineEntry 1 }

   phivLineName OBJECT-TYPE
        SYNTAX DisplayString (SIZE (0..16))
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "The name of the line on this row of the table."
        ::= { phivLineEntry 2 }

   phivLineState OBJECT-TYPE
        SYNTAX INTEGER {
            on (1),
            off (2),
            service (3),
            cleared (4)
        }
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents Network Management operational
            state.
            NOTE that these values are incremented by one compared to
            the standard DECnet values."
        ::= { phivLineEntry 3 }

   phivLineSubstate OBJECT-TYPE
        SYNTAX INTEGER {
            starting (1),
            reflecting (2),
            looping (3),
            loading (4),
            dumping (5),
            triggering (6),
            auto-service (7),
            auto-loading (8),
            auto-dumping (9),
            auto-triggering (10),
            synchronizing (11),
            failed (12),
            running (13)
        }
        ACCESS read-only

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        STATUS mandatory
        DESCRIPTION
            "This value represents the line's read-only Network
            Management substate.
            NOTE that these values are incremented by one compared to
            the standard DECnet values."
        ::= { phivLineEntry 4 }

   phivLineService OBJECT-TYPE
        SYNTAX INTEGER {
            starting (1),
            reflecting (2),
            looping (3),
            other (4)
        }
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the line's read-only Network
            Management service.
            NOTE that these values are incremented by one compared to
            the standard DECnet values and OTHER is a new addition."
        ::= { phivLineEntry 5 }

   phivLineDevice OBJECT-TYPE
        SYNTAX DisplayString (SIZE (0..16))
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the Physical Link device to be
            used on the line."
        ::= { phivLineEntry 6 }

   phivLineReceiveBuffs OBJECT-TYPE
        SYNTAX INTEGER (0..65535)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the number of receive buffers
            reserved for the line. It is a decimal number in
            the range 0-65535.  0 is supported for those vendors
            that do not reserve buffers on a per line basis and
            use a pool of buffers that can be used by any line."
        ::= { phivLineEntry 7 }

   phivLineProtocol OBJECT-TYPE
        SYNTAX INTEGER {
            ddcmp-point (1),

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            ddcmp-control (2),
            ddcmp-tributary (3),
            reserved (4),
            ddcmp-dmc (5),
            olapb (6),
            ethernet (7),
            ci (8),
            qp2 (9),
            other (14),
            fddi (15)
        }
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the protocol used on the line
            device.  Note that these values are incremented by
            one compared to the standard DECnet values."
        ::= { phivLineEntry 8 }

   phivLineServiceTimer OBJECT-TYPE
        SYNTAX INTEGER (1..65535)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the amount of time in
            milliseconds allowed to elapse before a Data Link
            receive request completes while doing service
            operations."
        ::= { phivLineEntry 9 }

   phivLineMaxBlock OBJECT-TYPE
        SYNTAX INTEGER (1..65535)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the Data Link maximum block
            size on the line."
        ::= { phivLineEntry 10 }

   -- Non Broadcast Line Group

   -- The implementation of the Non Broadcast Line Group is optional.
   -- A system can be said to implement this group if and only if
   -- all objects in this group are implemented.

   phivNonBroadcastTable OBJECT-TYPE
        SYNTAX SEQUENCE OF PhivNonBroadcastEntry
        ACCESS not-accessible

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        STATUS mandatory
        DESCRIPTION
            "The Non Broadcast Table."
        ::= { nonBroadcastLine 1 }

   phivNonBroadcastEntry OBJECT-TYPE
        SYNTAX PhivNonBroadcastEntry
        ACCESS not-accessible
        STATUS mandatory
        DESCRIPTION
            "There is one entry in the table for each
            Non Broadcast line."
        INDEX  { phivNonBroadcastIndex }
        ::= { phivNonBroadcastTable 1 }

   PhivNonBroadcastEntry ::=
        SEQUENCE {
            phivNonBroadcastIndex
                InterfaceIndex,
            phivNonBroadcastController
                INTEGER,
            phivNonBroadcastDuplex
                INTEGER,
            phivNonBroadcastClock
                INTEGER,
            phivNonBroadcastRetransmitTimer
                INTEGER
        }

   phivNonBroadcastIndex OBJECT-TYPE
        SYNTAX InterfaceIndex
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "The Non Broadcast line on which this entry's
            equivalence is effective.  This is the same value
            as the ifIndex."
        ::= { phivNonBroadcastEntry 1 }

   phivNonBroadcastController OBJECT-TYPE
        SYNTAX INTEGER {
            normal (1),
            loopback (2),
            other (3)
        }
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION

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            "This value represents the Physical Link hardware
            controller mode for the line device. The values
            for controller-mode are:

            NORMAL  For normal controller operating mode.

            LOOPBACK For software controllable loopback of the
            controller. On those devices that can support this
            mode, it causes all transmitted messages to be looped
            back from within the controller itself. This is
            accomplished without any manual intervention other
            than the setting of this parameter value.

            OTHER indicates function is not supported
            Note that these values are incremented by one compared to
            the standard DECnet values."
        ::= { phivNonBroadcastEntry 2 }

   phivNonBroadcastDuplex OBJECT-TYPE
        SYNTAX INTEGER {
            full (1),
            half (2)
        }
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the Physical Link hardware
            duplex mode of the line device. The possible modes
            are:

            FULL   Full-duplex
            HALF   Half-duplex

            Note that these values are incremented by one compared to
            the standard DECnet values."
        ::= { phivNonBroadcastEntry 3 }

   phivNonBroadcastClock OBJECT-TYPE
        SYNTAX INTEGER {
            external (1),
            internal (2),
            other (3)
        }
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents the Physical Link hardware clock
            mode for the line device. The values for clock-mode are:

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            INTERNAL For software controllable loopback use of
            the clock. On those devices that can support this
            mode, it causes the device to supply a clock signal
            such that a transmitted messages can be looped
            back from outside the device. This may require manual
            intervention other than the setting of this parameter
            value. For example, the operator may have to connect
            a loopback plug in place of the normal line.

            EXTERNAL For normal clock operating mode, where the
            clock signal is supplied externally to the controller.
            Note that these values are incremented by one compared to
            the standard DECnet values."
        ::= { phivNonBroadcastEntry 4 }

   phivNonBroadcastRetransmitTimer OBJECT-TYPE
        SYNTAX INTEGER (1..65535)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value represents number of milliseconds before
            the Data Link retransmits a block on the line. On
            half-duplex lines, this parameter is the select timer."
        DEFVAL { 3000 }
        ::= { phivNonBroadcastEntry 5 }

   -- Area Parameters Group

   -- The implementation of the Area Parameters Group is mandatory
   -- for all systems which implement level 2 routing.

   phivAreaTable OBJECT-TYPE
        SYNTAX SEQUENCE OF PhivAreaEntry
        ACCESS not-accessible
        STATUS mandatory
        DESCRIPTION
            "Table of information kept on all areas known to
            this unit."
        ::= { area 1 }

   phivAreaEntry OBJECT-TYPE
        SYNTAX PhivAreaEntry
        ACCESS not-accessible
        STATUS mandatory
        DESCRIPTION
            "The area routing information."
        INDEX  { phivAreaNum }

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        ::= { phivAreaTable 1 }

   PhivAreaEntry ::=
        SEQUENCE {
            phivAreaNum
                INTEGER,
            phivAreaState
                INTEGER,
            phivAreaCost
                Gauge,
            phivAreaHops
                INTEGER,
            phivAreaNextNode
                PhivAddr,
            phivAreaCircuitIndex
               INTEGER
        }

   phivAreaNum OBJECT-TYPE
        SYNTAX INTEGER (0..64)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value indicates the area number of this entry."
        ::= { phivAreaEntry 1 }

   phivAreaState OBJECT-TYPE
        SYNTAX INTEGER {
            reachable (4),
            unreachable (5)
        }
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "This value indicates the state of the area"
        ::= { phivAreaEntry 2 }

   phivAreaCost OBJECT-TYPE
        SYNTAX Gauge
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "The total cost over the current path to the
             destination area. Cost is a value associated with
             using a circuit. Routing routes messages (data)
             along the path between 2 areas with the smallest
             cost."
        ::= { phivAreaEntry 3 }

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   phivAreaHops OBJECT-TYPE
        SYNTAX INTEGER (0..255)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "The number of hops to a destination area. A hop is
            the routing value representing the logical distance
            between two areas in network."
        ::= { phivAreaEntry 4 }

   phivAreaNextNode OBJECT-TYPE
        SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "The next node on the circuit used to get to the
            area under scrutiny."
        ::= { phivAreaEntry 5 }

   phivAreaCircuitIndex OBJECT-TYPE
        SYNTAX INTEGER (1..65535)
        ACCESS read-only
        STATUS mandatory
        DESCRIPTION
            "A unique index value for each known circuit."
        ::= { phivAreaEntry 6 }

   -- Additional Area Parameters

   phivAreaMaxCost 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 other level 2 routing
            node. The AREA MAXIMUM COST number is decimal in the
            range 1-1022. This parameter is only applicable if
            the executor node is of type AREA."
        ::= { area 2 }

   phivAreaMaxHops OBJECT-TYPE
        SYNTAX INTEGER (1..30)
        ACCESS read-write
        STATUS mandatory
        DESCRIPTION
            "This value represents the maximum number of routing hops

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            allowable from the executor to any other level 2
            routing node.  This parameter is only applicable if the
            executor node is of type AREA."
        ::= { area 3 }

   phivRouteMaxArea OBJECT-TYPE
        SYNTAX INTEGER (1..63)
        ACCESS read-write
        STATUS mandatory
        DESCRIPTION
            "This value represents the largest area number and,
            therefore, number of areas that can be known about
            by the executor node's Routing. This parameter is only
            applicable if the executor node is of type AREA."
        ::= { area 4 }

          END

6.  Changes from RFC 1289

   Several changes have been made to this document.  These changes
   include:

   (1)  Ranges have been added on all PhivCounter types to remove
        ambiguity which might otherwise have occurred.

   (2)  Made clear that all indexes start with 1 and count up.

   (3)  Spelling and typographic changes.

   (4)  Changes to improve consistency with other documents including
        the removal of subranging within definitions of sequences
        defining table entries.

   (5)  Updated compliance text to conform to current practice.

   (6)  Fixed discrepancy between description and range clause for
        phivControlMaxBuffs.

   (7)  Added a space that was missing between SYNTAX and INTEGER in the
        phivRouteType object.

   (8)  Both phivRouteType and phivRouteSystemAddr have been made
        obsolete.  They have been replaced with phivRouteRoutingType
        and phivRouteSystemAddress which are both read-write objects.

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   (9)  A new Adjacency table has been added as adjacency 2.  This
        table is identical to the original except that
        phivAdjExecListenTimer was not carried into the new version.
        The existing Adjacency table and all objects in it have been
        made obsolete.  The index to the new table is
        phivAdjNodeCircuitIndex and phivAdjAddr.

   (10) Objects phivCountersCountDataBlocksRecd and
        phivCountersCountDataBlocksSent have both been made obsolete
        since the DESCRIPTION information overlapped with the
        phivCountersCountDataBlksRecd and
        phivCountersCountDataBlksSent objects which have been
        retained.

   (11) The following groups have been moved from mandatory to
        optional status: Session, End, DDCMP, DDCMP Multipoint
        Circuit Control, Counters, and Non Broadcast Line.

7.  Acknowledgements

   This document is the result of work undertaken the by DECnet Phase IV
   MIB working group. In addition, the special contributions and
   comments of the following members are also acknowledged:

         Chris Chiotasso, Sparticus

         Steven Hunter, National Energy Research Supercomputer Center,
         Lawrence Livermore National Laboratory

8.  References

   [1] Cerf, V., "IAB Recommendations for the Development of Internet
       Network Management Standards", RFC 1052, NRI, April 1988.

   [2] Rose M., and K. McCloghrie, "Structure and Identification of
       Management Information for TCP/IP-based internets", STD 16, RFC
       1155, Performance Systems International, Hughes LAN Systems, May
       1990.

   [3] McCloghrie K., and M. Rose, Editors, "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.

   [4] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
       Network Management Protocol", STD 15, RFC 1157, SNMP Research,
       Performance Systems International, Performance Systems
       International, MIT Laboratory for Computer Science, May 1990.

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   [5] Rose, M., and K. McCloghrie, Editors, "Concise MIB Definitions",
       STD 16, RFC 1212, Performance Systems International, Hughes LAN
       Systems, March 1991.

   [6] Cook, J., Editor, "Definitions of Managed Objects for the
       Ethernet-like Interface Types", RFC 1284, Chipcom Corporation,
       December 1991.

   [7] Digital Equipment Corporation, "DECnet-ULTRIX NCP Command
       Reference", Digital Equipment Corporation, Maynard,
       Massachusetts.

   [8] Digital Equipment Corporation, "DECnet-ULTRIX USE Guide", Digital
       Equipment Corporation, Maynard, Massachusetts.

   [9] Digital Equipment Corporation, "DECnet DIGITAL Network
       Architecture, Network Management Functional Specification",
       Version 4.0.0. Digital Equipment Corporation, Maynard,
       Massachusetts, July 1983.

  [10] Digital Equipment Corporation, "DECnet DIGITAL Network
       Architecture, Routing Layer Functional Specification", Version
       2.0.0.  Digital Equipment Corporation, Maynard, Massachusetts,
       May 1983.

9.  Security Considerations

   Security issues are not discussed in this memo.

10.  Author's Address

   Jon Saperia
   Digital Equipment Corporation
   153 Taylor Street
   M/S TAY2-2/B5
   Littleton, MA 01460

   Phone: +1 508-952-3171
   EMail: saperia@tay.dec.com

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