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Versions: 02 rfc1559                                                    
draft                DECnet Phase IV MIB Extensions               Oct 93


                     DECnet Phase IV MIB Extensions

                            October 25, 1993


                   DECnet Phase IV MIB Working Group


                   draft-ietf-decnetiv-mibext-02.txt


                              Jon Saperia
                     Digital Equipment Corporation
                          saperia@tay.dec.com





                          Status of this Memo

This document is an Internet Draft.  Internet Drafts are working docu-
ments of the Internet Engineering Task Force (IETF), its Areas, and its
Working Groups.  Note that other groups may also distribute working
documents as Internet Drafts.

Internet Drafts are valid for a maximum of six months and may be
updated, replaced, or obsoleted by other documents at any time.  It is
inappropriate to use Internet Drafts as reference material or to cite
them other than as a "work in progress".




















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1.  Introduction

This memo defines a set of DECnet Phase IV extensions that have been
created for the Internet MIB.  It reflects changes which are the result
of operational experience based on the Proposed Standard RFC 1289.  This
memo does not specify a standard for the Internet community.

When used in conjunction with the structure of management information
(RFC 1155), the management information base for network management of
TCP/IP-based internets (RFC 1213) and the Simple Network Management Pro-
tocol (RFC 1157), it will be possible to provide integrated network
management of combined TCP/IP and DECnet Phase IV based internets.  This
document was produced by the DECnet Phase IV MIB working group of the
Internet Engineering Task Force (IETF).

With the adoption of The Simple Network Management Protocol (RFC 1157),
the management information base for network management of TCP/IP-based
internets (RFC 1213), and the structure of management information (RFC
1155), by the Internet, and a large number of vendor implementations of
these standards in commercially available products, it became possible
to provide a higher level of effective network management in TCP/IP-
based internets than previously available. With the growth in the use of
these standards, network managers desired to use this environment as a
base for providing integrated network management of multi-protocol net-
works.

DECnet Phase IV is one widely used protocol which often coexists in IP-
based internets. This memo provides the mechanisms by which IP-based
management stations can effectively manage DECnet Phase IV based systems
(especially router products) in an integrated fashion through the use of
the standard Internet SMI, MIB and Simple Network Management Protocol.

DECnet Phase IV objects have been defined to be used in conjunction with
the Internet MIB to allow access and control of these new objects by the
Internet community. Additional support for other DECnet-based protocols
such as RBMS (Remote Bridge Management Software) or other Digital Equip-
ment Corporation specific hardware platforms is not included in this
document.












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2.  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.

(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.






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3.  The Network Management Framework

The Internet-standard Network Management Framework consists of three
components.  They are:

o    RFC 1155 which defines the SMI, the mechanisms used for describing
     and naming objects for the purpose of management.  RFC 1212 defines
     a more concise description mechanism, which is wholly consistent
     with the SMI.

o    RFC 1213 defines MIB-II, the core set of managed objects for the
     Internet suite of protocols.

o    RFC 1157 which defines the SNMP, the protocol used for network
     access to managed objects.

The Framework permits new objects to be defined for the purpose of
experimentation and evaluation.


3.1.  Object Definitions

Managed objects are accessed via a virtual information store, termed the
Management Information Base or MIB.  Objects in the MIB are defined
using the subset of Abstract Syntax Notation One (ASN.1) defined in the
SMI.  In particular, each object type is named by an OBJECT IDENTIFIER,
an administratively assigned name.  The object type together with an
object instance serves to uniquely identify a specific instantiation of
the object.  For human convenience, we often use a textual string,
termed the descriptor, to refer to the object type.




















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4.  Selected Objects

The objects included in this memo have been created from the DIGITAL
Network Architecture Network Management Functional Specification Version
4.0.0, dated July 1983. An attempt has been made to provide a reasonable
ordering of these variables into groups. These groups are:

     System Group
     Network Management Group
     Session Group
     End Group
     Routing Group
     Circuit Group
     DDCMP Group
     DDCMP Multipoint Control Group
     Ethernet Group
     Counters Group
     Adjacency Group
     Line Group
     Non Broadcast Line Group
     Area Group

An effort has also been made to preserve the original syntax of each
object wherever possible, for example, a DECnet Phase IV object is Exe-
cutor State. This was originally coded as a NICE (Network Information
and Control Exchange) data type which is a coded single field object of
1 byte in length. When converted for inclusion into the Internet MIB
using the Internet SMI, it became an enumerated integer.

All objects in this memo are described using the standard Internet SMI
and BER of RFC 1155. A complete description of an object will include
the name, syntax and encoding. Just as with objects supported in the MIB
(RFC 1213), an object name is identified with an object identifier which
has been administratively assigned. This identifies an Object Type. When
an object type is combined with a specific instance, the particular
object is uniquely identified. The use of Object Descriptors in this
memo is consistent with that of RFC 1213 - they are text strings meant
to be read by humans. The descriptors have been taken from the original
DIGITAL Network Architecture Network Management Functional Specification
Version 4.0.0 Dated July 1983 which defined DECnet Phase IV objects.
These names were then massaged to put them in a form as consistent as
possible with object type names listed in the standard Internet MIB.
Object defintion information is also taken directly from the Network
Architecture Network Managment Functional Specification cited above
wherever possible. In this document, EXECUTOR is intended to reference





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only the DECnet software and is not intended to effect any other proto-
cols which may be running on the system.
















































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5.  Textual Conventions

New datatypes have been introduced as a textual conventions in this DEC-
net Phase IV MIB document. The purpose of these additions is to facili-
tate understanding of new objects in this MIB. No changes to the SMI or
the SNMP are necessary to support these conventions which are described
in 5 (Definitions).











































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6.  Definitions

     RFCxxxx-phivMIB DEFINITIONS ::= BEGIN

     IMPORTS
        Gauge
           FROM RFC1155-SMI
         OBJECT-TYPE
            FROM RFC-1212
         mib-2, DisplayString
           FROM RFC1213-MIB;

- -- DECNet Phase-IV MIB

     phiv      OBJECT IDENTIFIER ::= { experimental 5 }

- -- textual conventions

PhivAddr ::= OCTET STRING (SIZE (2))
- -- This data type is intended as a short word representation of
- -- standard DECnet Phase IV addresses. DECnet addresses are
- -- hierarchically structured numbers assigned to a particular
- -- DECnet node. The address is structured so that the area
- -- number is contained in the most significant 6 bits of the
- -- first octet.  The next 2 bits of the first octet contain
- -- the first two bits of the host address.  The remainder of
- -- the host address is contained in the second octet.

PhivCounter ::= INTEGER
- -- This data type has been created for DECnet counters.  These
- -- counters latch at their maximum specified value until either
- -- the system is restarted, or they are reset to zero by the user
- -- or management software.

InterfaceIndex ::= INTEGER
- --  The range of ifIndex, i.e., (1..2147483647)




- -- groups in the decnetiv mib

      phivSystem             OBJECT IDENTIFIER ::= { phiv 1 }
      phivManagement         OBJECT IDENTIFIER ::= { phiv 2 }
      session                OBJECT IDENTIFIER ::= { phiv 3 }





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      end                    OBJECT IDENTIFIER ::= { phiv 4 }
      routing                OBJECT IDENTIFIER ::= { phiv 5 }
      circuit                OBJECT IDENTIFIER ::= { phiv 6 }
      ddcmp                  OBJECT IDENTIFIER ::= { phiv 7 }
      control                OBJECT IDENTIFIER ::= { phiv 8 }
      ethernet               OBJECT IDENTIFIER ::= { phiv 9 }
      counters               OBJECT IDENTIFIER ::= { phiv 10 }
      adjacency              OBJECT IDENTIFIER ::= { phiv 11 }
      line                   OBJECT IDENTIFIER ::= { phiv 12 }
      nonBroadcastLine       OBJECT IDENTIFIER ::= { phiv 14 }
      area                   OBJECT IDENTIFIER ::= { phiv 15 }

- -- System Group

- -- The implementation of the System Group is mandatory for
- -- all systems.

phivSystemState OBJECT-TYPE
     SYNTAX INTEGER {
         on (1),
         off (2),
         shut (3),
         restricted (4)
     }
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This represents the operational state of the executor
         node.
         The possible states are:
         ON          Allows logical links.
         OFF         Allows no new links, terminates existing
                     links, and stops routing traffic through.
         SHUT        Allows no new logical links, does not
                     destroy existing logical links, and goes
                     to the OFF state when all logical links are
                     gone.
         RESTRICTED  Allows no new incoming logical links from
                     other nodes.

         NOTE: These values are incremented by one compared to
         the standard DECnet values in order to maintain
         compliance with RFC 1155)."
     ::= { phivSystem 1 }






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phivExecIdent OBJECT-TYPE
     SYNTAX DisplayString (SIZE (0..32))
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This is a text string that describes the executor node
         (for example, 'Research Lab').  The string is up to 32
         characters of any type."
     ::= { phivSystem 2 }

- -- Network Management Group

- -- The implementation of the Network Management Group is
- -- mandatory for all systems which contain a DECnet-style
- -- management version.


phivMgmtMgmtVers OBJECT-TYPE
     SYNTAX DisplayString (SIZE (0..255))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This is the read-only Network Management Version,
         consisting of the version number, the Engineering
         Change Order (ECO) number, and the user ECO number
         (for example, 3.0.0). This parameter applies to the
         executor node only."
     ::= { phivManagement 1 }

- -- Session Layer Group

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

phivSessionSystemName OBJECT-TYPE
     SYNTAX DisplayString (SIZE (0..6))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Name to be associated with the node identification.
         Only one name can be assigned to a node address or a
         circuit identification. No name should be used more than
         once in a DECnet network. Node-name is one to six upper
         case alphanumeric characters with at least one alpha





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         character. A length of 0 indicates no name."
     ::= { session 1 }

phivSessionInTimer OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the maximum duration between the
         time a connect is received for a process at the
         executor node and the time that process accepts or
         rejects it. If the connect is not accepted or rejected
         by the user within the number of seconds specified,
         Session Control rejects it for the user.  A value of 0
         indicates no timer is running."
     ::= { session 2 }

phivSessionOutTimer OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the duration between the time the
         executor requests a connect and the time that connect is
         acknowledged by the destination node. If the connect is
         not acknowledged within the number of seconds
         specified, Session Control returns an error.  A value of 0
         indicates no timer is running."
     ::= { session 3 }

- -- End Communication Layer Group

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

- -- Remote State Table

phivEndRemoteTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivEndRemoteEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about the state of sessions between the
         node under study and the nodes found in the table."





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     ::= { end 1 }

phivEndRemoteEntry OBJECT-TYPE
     SYNTAX PhivEndRemoteEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about a particular remote node as seen
         from the end communication layer."
     INDEX  { phivEndRemoteHostNodeID }
     ::= { phivEndRemoteTable 1 }

PhivEndRemoteEntry ::=
     SEQUENCE {
         phivEndRemoteHostNodeID
             PhivAddr,
         phivEndRemoteState
             INTEGER,
         phivEndCircuitIndex
             INTEGER,
         phivEndActiveLinks
             INTEGER,
         phivEndDelay
             INTEGER
     }

phivEndRemoteHostNodeID OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value is the address of the remote node to be
         evaluated."
     ::= { phivEndRemoteEntry 1 }

phivEndRemoteState OBJECT-TYPE
     SYNTAX INTEGER {
         on (1),
         off (2),
         shut (3),
         restricted (4)
     }
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION





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         "This represents the operational state of the remote node
         being evaluated.
         The possible states are:

         ON          Allows logical links.
         OFF         Allows no new links, terminates existing
                     links, and stops routing traffic through.
         SHUT        Allows no new logical links, does not
                     destroy existing logical links, and goes
                     to the OFF state when all logical links are
                     gone.
         RESTRICTED  Allows no new incoming logical links from
                     other nodes.

         NOTE: These values are incremented by one compared to
         the standard DECnet values in order to maintain
         compliance with RFC 1155."
     ::= { phivEndRemoteEntry 2 }

phivEndCircuitIndex OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "A unique index value for each known circuit used to
         communicate with the remote node.  This is the same
         value as phivCircuitIndex."
     ::= { phivEndRemoteEntry 3 }

phivEndActiveLinks OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This read-only parameter represents the number of active
         logical links from the executor to the destination node."
     ::= { phivEndRemoteEntry 4 }

phivEndDelay OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This read-only parameter is the average round trip
         delay in seconds to the destination node. This





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         parameter is kept on a remote node basis."
     ::= { phivEndRemoteEntry 5 }

- -- End System Counter Table

phivEndCountTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivEndCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about the counters associated with each end
         system that is known to the entity. These counters
         reflect totals from the perspective of the executor
         node."
     ::= { end 2 }

phivEndCountEntry OBJECT-TYPE
     SYNTAX PhivEndCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about a particular session between two end
         systems."
     INDEX  { phivEndCountHostNodeID }
     ::= { phivEndCountTable 1 }

PhivEndCountEntry ::=
     SEQUENCE {
         phivEndCountHostNodeID
             PhivAddr,
         phivEndCountSecsLastZeroed
             PhivCounter,
         phivEndCountUsrBytesRec
             PhivCounter,
         phivEndCountUsrBytesSent
             PhivCounter,
         phivEndUCountUsrMessRec
             PhivCounter,
         phivEndCountUsrMessSent
             PhivCounter,
         phivEndCountTotalBytesRec
             PhivCounter,
         phivEndCountTotalBytesSent
             PhivCounter,
         phivEndCountTotalMessRec





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             PhivCounter,
         phivEndCountTotalMessSent
             PhivCounter,
         phivEndCountConnectsRecd
             PhivCounter,
         phivEndCountConnectsSent
             PhivCounter,
         phivEndCountReponseTimeouts
             PhivCounter,
         phivEndCountRecdConnectResErrs
             PhivCounter
     }

phivEndCountHostNodeID OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value is the address of the remote node to be
         evaluated."
     ::= { phivEndCountEntry 1 }

phivEndCountSecsLastZeroed OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value is the number of seconds that have elapsed
         since the counters for the node in this table row were
         last set to zero. This counter is located in the
         network management layer, but is returned with the
         end system information which follows."
     ::= { phivEndCountEntry 2 }

phivEndCountUsrBytesRec OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of user bytes received from the target host."
     ::= { phivEndCountEntry 3 }

phivEndCountUsrBytesSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only





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     STATUS mandatory
     DESCRIPTION
         "Number of user bytes sent to the target host."
     ::= { phivEndCountEntry 4 }

phivEndUCountUsrMessRec OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of user messages received from the target host."
     ::= { phivEndCountEntry 5 }

phivEndCountUsrMessSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of user messages sent to the target host."
     ::= { phivEndCountEntry 6 }

phivEndCountTotalBytesRec OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of bytes received from the target host."
     ::= { phivEndCountEntry 7 }

phivEndCountTotalBytesSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of bytes sent to the target host."
     ::= { phivEndCountEntry 8 }

phivEndCountTotalMessRec OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of messages received from the target host."
     ::= { phivEndCountEntry 9 }






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phivEndCountTotalMessSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of messages sent to the target host."
     ::= { phivEndCountEntry 10 }

phivEndCountConnectsRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of connects received from the target host."
     ::= { phivEndCountEntry 11 }

phivEndCountConnectsSent OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of connects sent to the target host."
     ::= {phivEndCountEntry 12 }

phivEndCountReponseTimeouts OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of response timeouts."
     ::= { phivEndCountEntry 13 }

phivEndCountRecdConnectResErrs OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of received connect resource errors."
     ::= {phivEndCountEntry 14 }

- -- additional End System objects

phivEndMaxLinks OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-write





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     STATUS mandatory
     DESCRIPTION
         "This value represents the maximum active logical
         link count allowed for the executor."
     ::= { end 3 }

phivEndNSPVers OBJECT-TYPE
     SYNTAX DisplayString (SIZE (0..255))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This read-only parameter represents the version number
         of the node End Communication S/W. The format is
         version number, ECO, and user ECO, e.g., 4.1.0"
     ::= { end 4 }

phivEndRetransmitFactor OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the maximum number of times the
         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





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         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.
         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.





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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
          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))





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     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
         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."





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     ::= { 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 }

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,





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         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
         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.





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         (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.

         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





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     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 }

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






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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,
         phivLevel1RouteNextNode
             PhivAddr
     }

phivLevel1RouteNodeAddr OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))





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     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value is the address of the node about which
         routing information is contained in this level 1
         routing table."
     ::= { phivLevel1RouteEntry 1 }

phivLevel1RouteCircuitIndex OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "A unique index value for each known circuit. This is
         the index to the circuit state table and is the same
         value as phivCircuitIndex."
     ::= { phivLevel1RouteEntry 2 }

phivLevel1RouteCost OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This read-only parameter represents the total cost
         over the current path to the destination node. Cost is
         a positive integer value associated with using a
         circuit. Routing routes messages (data) along the path
         between two nodes with the smallest cost. COST is kept
         on a remote node basis."
     ::= { phivLevel1RouteEntry 3 }

phivLevel1RouteHops OBJECT-TYPE
     SYNTAX INTEGER (0..127)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This read-only parameter represents the number of hops
         over to a destination node. A hop is Routing value
         representing the logical distance between two nodes in
         a network. HOPS is kept on a remote node basis."
     ::= { phivLevel1RouteEntry 4 }

phivLevel1RouteNextNode OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only





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     STATUS mandatory
     DESCRIPTION
         "This read-only value indicates the next node on the
         circuit used to get to the node under scrutiny
         (next hop)."
     ::= { phivLevel1RouteEntry 5 }

- -- Additional routing parameters

phivRouteCountZeroCount OBJECT-TYPE
     SYNTAX INTEGER {
         other (1),
         reset (2)
     }
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "When this value is set to 2, the following objects are
         set to Zero: phivRouteCountAgedPktLoss,
         phivRouteCountNodeUnrPktLoss,
         phivRouteCountOutRngePktLoss,
         phivRouteCountOverSzePktLoss,
         phivRouteCountPacketFmtErr,
         phivRouteCountPtlRteUpdtLoss, and
         phivRouteCountVerifReject."
     ::= { routing 23 }

phivRouteSystemAddr OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "DECnet Phase IV node address."
     ::= { routing 24 }

phivRouteRoutingType OBJECT-TYPE
     SYNTAX INTEGER {
         routing-III (1),
         nonrouting-III (2),
         area (3),
         routing-IV (4),
         nonrouting-IV (5)
     }
     ACCESS read-write
     STATUS mandatory





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     DESCRIPTION
         "This read-write 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.

         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 25 }

phivRouteSystemAddress OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "DECnet Phase IV node address."
     ::= { routing 26 }

- -- Circuit Group

- -- The implementation of the Circuit Group is mandatory for
- -- all systems.

- -- Circuit Parameters Table

phivCircuitParametersTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivCircuitParametersEntry
     ACCESS not-accessible
     STATUS mandatory





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     DESCRIPTION
         "Information about the parameters associated with all
         circuits currently known."
     ::= {circuit 1 }

phivCircuitParametersEntry OBJECT-TYPE
     SYNTAX PhivCircuitParametersEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Parameters information about all circuits currently
          known."
     INDEX  { phivCircuitIndex }
     ::= { phivCircuitParametersTable 1 }

PhivCircuitParametersEntry ::=
     SEQUENCE {
         phivCircuitIndex
             INTEGER,
         phivCircuitLineIndex
             INTEGER,
         phivCircuitCommonState
             INTEGER,
         phivCircuitCommonSubState
             INTEGER,
         phivCircuitCommonName
             DisplayString,
         phivCircuitExecRecallTimer
             INTEGER,
         phivCircuitCommonType
             INTEGER,
         phivCircuitService
             INTEGER,
         phivCircuitExecCost
             INTEGER,
         phivCircuitExecHelloTimer
             INTEGER
    }

phivCircuitIndex OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "A unique index value for each known circuit."





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     ::= { phivCircuitParametersEntry 1 }

phivCircuitLineIndex OBJECT-TYPE
     SYNTAX InterfaceIndex
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "The line on which this circuit is active.  This is
          the same as the ifIndex."
     ::= { phivCircuitParametersEntry 2 }

phivCircuitCommonState OBJECT-TYPE
     SYNTAX INTEGER {
         on (1),
         off (2),
         service (3),
         cleared (4)
     }
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the circuit's Network Management
         operational state. NOTE: These values are incremented
         by one compared to the standard DECnet values in order
         to maintain compliance with RFC 1155."
     ::= { phivCircuitParametersEntry 3 }

phivCircuitCommonSubState OBJECT-TYPE
     SYNTAX INTEGER {
         starting (1),
         reflecting (2),
         looping (3),
         loading (4),
         dumping (5),
         triggering (6),
         autoservice (7),
         autoloading (8),
         autodumping (9),
         autotriggering (10),
         synchronizing (11),
         failed (12),
         running (13)
     }
     ACCESS read-only
     STATUS mandatory





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     DESCRIPTION
         "This value represents the circuit's Network Management
         operational and service substate. NOTE: These values are
         incremented by one compared to the standard DECnet values
         in order to maintain compliance with RFC 1155."
     ::= { phivCircuitParametersEntry 4 }

phivCircuitCommonName OBJECT-TYPE
     SYNTAX DisplayString (SIZE (0..16))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "The name of the circuit entry in the table, for example,
          SVA-0 or in a level 2 router ASYNC-8 or ETHER-1)."
     ::= { phivCircuitParametersEntry 5 }

phivCircuitExecRecallTimer OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This parameter represents the minimum number of
         seconds to wait before restarting the circuit.  A
         value of 0 indicates not timer is running."
     ::= { phivCircuitParametersEntry 6 }

phivCircuitCommonType OBJECT-TYPE
     SYNTAX INTEGER {
         ddcmp-point (1),
         ddcmp-control (2),
         ddcmp-tributary (3),
         x25 (4),
         ddcmp-dmc (5),
         ethernet (6),
         ci (7),
         qp2-dte20 (8),
         bisync (9),
         other (14),
         fddi (15)
     }
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Represents the type of the circuit. For X.25 circuits,
         the value must be set to X25. For DDCMP and Ethernet





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         circuits it is read only and is the same value as the
         protocol of the associated line.
         NOTE: Values 1 - 5 are incremented by one compared to the
         standard DECnet values in order to maintain compliance
         with RFC 1155."
     ::= { phivCircuitParametersEntry 7 }

phivCircuitService  OBJECT-TYPE
     SYNTAX INTEGER {
         enabled (1),
         disabled (2)
     }
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value indicates whether or not Network Management
         allows service operations on a circuit. The values for
         service-control are as follows:

         ENABLED     SERVICE state and/or service functions are
                     allowed.

         DISABLED    SERVICE state and/or service functions are not
                     allowed.

         NOTE: These values are incremented by one compared to the
         standard DECnet values in order to maintain compliance
         with RFC 1155."
     ::= { phivCircuitParametersEntry 8 }

phivCircuitExecCost OBJECT-TYPE
     SYNTAX INTEGER (1..25)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the routing cost of the circuit.
         Routing sends messages along the path between two nodes
         having the smallest cost."
     ::= { phivCircuitParametersEntry 9 }

phivCircuitExecHelloTimer OBJECT-TYPE
     SYNTAX INTEGER (1..8191)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION





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         "This value determines the frequency of Routing Hello
         messages sent to the adjacent node on the circuit."
     ::= { phivCircuitParametersEntry 10 }

- -- Circuit Counters Table

phivCircuitCountTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivCircuitCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about the counters associated with all
         circuits currently known."
     ::= { circuit 2 }

       phivCircuitCountEntry OBJECT-TYPE
     SYNTAX PhivCircuitCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Counter information about all circuits currently known"
     INDEX     { phivCircuitIndex }
     ::= { phivCircuitCountTable 1 }

PhivCircuitCountEntry ::=
     SEQUENCE {
         phivCircuitCountSecLastZeroed
             PhivCounter,
         phivCircuitCountTermPacketsRecd
             PhivCounter,
         phivCircuitCountOriginPackSent
             PhivCounter,
         phivCircuitCountTermCongLoss
             PhivCounter,
         phivCircuitCountCorruptLoss
             PhivCounter,
         phivCircuitCountTransitPksRecd
             PhivCounter,
         phivCircuitCountTransitPkSent
             PhivCounter,
         phivCircuitCountTransitCongestLoss
             PhivCounter,
         phivCircuitCountCircuitDown
             PhivCounter,
         phivCircuitCountInitFailure





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             PhivCounter,
         phivCircuitCountAdjDown
             PhivCounter,
         phivCircuitCountPeakAdj
             PhivCounter,
         phivCircuitCountBytesRecd
             PhivCounter,
         phivCircuitCountBytesSent
             PhivCounter,
         phivCircuitCountDataBlocksRecd
             PhivCounter,
         phivCircuitCountDataBlocksSent
             PhivCounter,
         phivCircuitCountUsrBuffUnav
             PhivCounter
     }

phivCircuitCountSecLastZeroed  OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of seconds since the circuit counters for this
         circuit were last zeroed."
     ::= { phivCircuitCountEntry 1 }

phivCircuitCountTermPacketsRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of terminating packets received on this circuit."
     ::= { phivCircuitCountEntry 2 }

phivCircuitCountOriginPackSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of originating packets sent on this circuit."
     ::= { phivCircuitCountEntry 3 }

phivCircuitCountTermCongLoss OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only





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     STATUS mandatory
     DESCRIPTION
         "Number of terminating congestion losses on this
         circuit."
     ::= { phivCircuitCountEntry 4 }

phivCircuitCountCorruptLoss OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of corruption losses on this circuit."
     ::= { phivCircuitCountEntry 5 }

phivCircuitCountTransitPksRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of Transit packets received on this circuit."
     ::= { phivCircuitCountEntry 6 }

phivCircuitCountTransitPkSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of transit packets sent on this circuit."
     ::= { phivCircuitCountEntry 7 }

phivCircuitCountTransitCongestLoss OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of transit congestion losses on this circuit."
     ::= { phivCircuitCountEntry 8 }

phivCircuitCountCircuitDown OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of circuit downs on this circuit."
     ::= { phivCircuitCountEntry 9 }





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phivCircuitCountInitFailure OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of Initialization failures on this circuit."
     ::= { phivCircuitCountEntry 10 }

phivCircuitCountAdjDown OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This counter indicates the number of adjacency losses
         that result from any of the following:
              Node listener timeout
              Invalid data received at node listener
              Unexpected control (initialization or verification)
                  message received
              Routing message received with a checksum error
              Node identification from a routing message or a
              Hello message that is not the one expected Hello
              message received indicating that connectivity
              became one-way
              Adjacency idled."
     ::= { phivCircuitCountEntry 11 }

phivCircuitCountPeakAdj OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This counter indicates the maximum number of nodes
         that are up on the circuit."
     ::= { phivCircuitCountEntry 12 }

phivCircuitCountBytesRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of bytes received on this circuit."
     ::= { phivCircuitCountEntry 13 }






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phivCircuitCountBytesSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of bytes sent on this circuit."
     ::= { phivCircuitCountEntry 14 }

phivCircuitCountDataBlocksRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of data blocks received on this circuit."
     ::= { phivCircuitCountEntry 15 }

phivCircuitCountDataBlocksSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of data blocks sent on this circuit."
     ::= { phivCircuitCountEntry 16 }

phivCircuitCountUsrBuffUnav OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of user buffer unavailable errors."
     ::= { phivCircuitCountEntry 17 }

- -- Additional Circuit Parameters

phivCircuitOrigQueueLimit OBJECT-TYPE
     SYNTAX INTEGER
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This parameter indicates the maximum number of
         originating packets that may be outstanding on this
         circuit. This does not include route-thru traffic."
     ::= { circuit 3 }

phivCircuitCountZeroCount OBJECT-TYPE





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     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
         Circuit Counter Table are set to zero."
     ::= { circuit 4 }

- -- DDCMP Circuit Group

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

- -- DDCMP Parameters Table

phivDDCMPCircuitParametersTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivDDCMPCircuitParametersEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about DDCMP circuit parameters."
     ::= { ddcmp 1}

phivDDCMPCircuitParametersEntry OBJECT-TYPE
     SYNTAX PhivDDCMPCircuitParametersEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Parameters information about DDCMP circuits currently
          known."
     INDEX     { phivDDCMPCircuitIndex }
     ::= { phivDDCMPCircuitParametersTable 1 }

PhivDDCMPCircuitParametersEntry ::=
     SEQUENCE {
         phivDDCMPCircuitIndex
             INTEGER,
         phivDDCMPCircuitAdjNodeAddr
             INTEGER,
         phivDDCMPCircuitTributary
             INTEGER





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     }

phivDDCMPCircuitIndex OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "A unique index value for each known DDCMP circuit.
         This is the same value as phivCircuitIndex."
     ::= { phivDDCMPCircuitParametersEntry 1 }

phivDDCMPCircuitAdjNodeAddr OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "The address of the adjacent node."
     ::= { phivDDCMPCircuitParametersEntry 2 }

phivDDCMPCircuitTributary OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value represents the Data Link physical tributary
         address of the circuit."
     ::= { phivDDCMPCircuitParametersEntry 3 }

- -- DDCMP Circuit Counter Table

phivDDCMPCircuitCountTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivDDCMPCircuitCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about the DDCMP counters associated with all
         circuits currently known."
     ::= { ddcmp 2 }

phivDDCMPCircuitCountEntry OBJECT-TYPE
     SYNTAX PhivDDCMPCircuitCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Counter information about DDCMP circuits now known"





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     INDEX     { phivCircuitIndex }
     ::= { phivDDCMPCircuitCountTable 1 }

PhivDDCMPCircuitCountEntry ::=
     SEQUENCE {
         phivDDCMPCircuitErrorsInbd
             PhivCounter,
         phivDDCMPCircuitErrorsOutbd
             PhivCounter,
         phivDDCMPCircuitRmteReplyTimeouts
             PhivCounter,
         phivDDCMPCircuitLocalReplyTimeouts
             PhivCounter,
         phivDDCMPCircuitRmteBuffErrors
             PhivCounter,
         phivDDCMPCircuitLocalBuffErrors
             PhivCounter,
         phivDDCMPCircuitSelectIntervalsElap
             PhivCounter,
         phivDDCMPCircuitSelectTimeouts
             PhivCounter
     }

phivDDCMPCircuitErrorsInbd OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of Data errors inbound."
     ::= { phivDDCMPCircuitCountEntry 1 }

phivDDCMPCircuitErrorsOutbd OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of outbound data errors."
     ::= { phivDDCMPCircuitCountEntry 2 }

phivDDCMPCircuitRmteReplyTimeouts OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of remote reply timeouts."





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     ::= { phivDDCMPCircuitCountEntry 3 }

phivDDCMPCircuitLocalReplyTimeouts OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of local Reply timeouts."
     ::= { phivDDCMPCircuitCountEntry 4 }

phivDDCMPCircuitRmteBuffErrors OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of remote reply time out errors."
     ::= { phivDDCMPCircuitCountEntry 5 }

phivDDCMPCircuitLocalBuffErrors  OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of local buffer errors."
     ::= { phivDDCMPCircuitCountEntry 6 }

phivDDCMPCircuitSelectIntervalsElap OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Selection intervals that have elapsed."
     ::= {phivDDCMPCircuitCountEntry 7 }

phivDDCMPCircuitSelectTimeouts OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of selection timeouts."
     ::= {phivDDCMPCircuitCountEntry 8 }

- -- DDCMP Line Count Table

phivDDCMPLineCountTable OBJECT-TYPE





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     SYNTAX SEQUENCE OF PhivDDCMPLineCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "The DDCMP Line Count Table."
     ::= { ddcmp 3 }

phivDDCMPLineCountEntry OBJECT-TYPE
     SYNTAX PhivDDCMPLineCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "There is one entry in the table for each line."
     INDEX  { phivDDCMPLineCountIndex }
     ::= { phivDDCMPLineCountTable 1 }

PhivDDCMPLineCountEntry ::=
     SEQUENCE {
         phivDDCMPLineCountIndex
             InterfaceIndex,
         phivDDCMPLineCountDataErrsIn
             PhivCounter,
         phivDDCMPLineCountRmteStationErrs
             PhivCounter,
         phivDDCMPLineCountLocalStationErrs
             PhivCounter
     }

phivDDCMPLineCountIndex OBJECT-TYPE
     SYNTAX InterfaceIndex
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "The line on which this entry's equivalence is
         effective. The interface identified by a particular
         value of this index is the same interface as
         identified by the same value of phivLineIndex.
         This value is the ifIndex."
     ::= { phivDDCMPLineCountEntry 1 }

phivDDCMPLineCountDataErrsIn OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION





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         "Number of data errors inbound."
     ::= { phivDDCMPLineCountEntry 2 }

phivDDCMPLineCountRmteStationErrs OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of remote station errors."
     ::= { phivDDCMPLineCountEntry 3 }

phivDDCMPLineCountLocalStationErrs OBJECT-TYPE
     SYNTAX PhivCounter (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
          "Number of local station errors."
     ::= { phivDDCMPLineCountEntry 4 }

- -- DDCMP Multipoint Circuit Control Group

- -- The implementation of the DDCMP Multipoint Circuit Control
- -- Group is optional.  A system can be said to implement this group
- -- if and only if all objects in this group are implemented.

phivControlSchedTimer OBJECT-TYPE
     SYNTAX INTEGER (50..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of milliseconds
         between recalculation of tributary polling priorities."
     DEFVAL { 200 }
     ::= { control 1 }

phivControlDeadTimer OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of milliseconds
         between polls of one of the set of dead
         tributaries."
     DEFVAL { 10000 }
     ::= { control 2 }





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phivControlDelayTimer OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value represents the minimum number of
         milliseconds to delay between polls. The delay timer
         limits the effect of a very fast control station on
         slow tributaries."
     ::= { control 3 }

phivControlStreamTimer OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of milliseconds a
         tributary or a half duplex remote station is
         allowed to hold the line.

         NOTE: This parameter can also be applied to
         half-duplex lines of type DDCMP POINT."
     DEFVAL { 6000 }
     ::= { control 4 }

- -- DDCMP Multipoint Circuit Control Parameters Table

phivControlParametersTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivControlParametersEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about control circuit parameters."
     ::= { control 5 }

phivControlParametersEntry OBJECT-TYPE
     SYNTAX PhivControlParametersEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Parameters information about control circuits
         currently known."
     INDEX  { phivControlCircuitIndex }
     ::= { phivControlParametersTable 1 }





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PhivControlParametersEntry ::=
     SEQUENCE {
         phivControlCircuitIndex
             INTEGER,
         phivControlBabbleTimer
             INTEGER,
         phivControlMaxBuffs
             INTEGER,
         phivControlMaxTransmits
             INTEGER,
         phivControlDyingBase
             INTEGER,
         phivControlDyingIncrement
             INTEGER,
         phivControlDeadThreshold
             INTEGER,
         phivControlDyingThreshold
             INTEGER,
         phivControlInactTreshold
             INTEGER,
         phivControlPollingState
             INTEGER,
         phivControlPollingSubState
             INTEGER,
         phivControlTransTimer
             INTEGER
     }

phivControlCircuitIndex OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "A unique index value for each known multipoint
         control circuit.
         This is the same value as phivCircuitIndex."
     ::= { phivControlParametersEntry 1 }

phivControlBabbleTimer OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of milliseconds that a





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         selected tributary or remote half-duplex station is
         allowed to transmit."
     DEFVAL { 6000 }
     ::= { phivControlParametersEntry 2 }

phivControlMaxBuffs  OBJECT-TYPE
     SYNTAX INTEGER (1..254)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the maximum number of buffers the
         tributary can use from a common buffer pool. If not
         set, there is no common buffer pool and buffers are
         explicitly supplied by the higher level. Count is a
         decimal integer in the range 1-254."
     ::= { phivControlParametersEntry 3 }

phivControlMaxTransmits  OBJECT-TYPE
     SYNTAX INTEGER (1..255)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the maximum number of data
         messages that can be transmitted at one time. Count
         is a decimal integer in the range 1-255."
     DEFVAL { 4 }
     ::= { phivControlParametersEntry 4 }

phivControlDyingBase OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the base priority to which a
         tributary is reset each time it has been polled. A
         separate base can be set for each of the indicated
         polling states. Base is a decimal integer in the range
         0-255.  If not set, the defaults are: active, 255;
         inactive, 0; and dying, 0."
     ::= { phivControlParametersEntry 5 }

phivControlDyingIncrement OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-write
     STATUS mandatory





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     DESCRIPTION
         "This value represents the increment added to the
         tributary priority each time the scheduling timer
         expires.  If not set, the defaults are: active, 0;
         inactive, 64; and dying, 16."
     ::= { phivControlParametersEntry 6 }

phivControlDeadThreshold OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of times to poll the
         active, inactive, or dying tributary before changing
         its polling state to dead because of receive timeouts.
         Count is a decimal integer in the range 0-255."
     DEFVAL { 8 }
     ::= { phivControlParametersEntry 7 }

phivControlDyingThreshold OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of times to poll the
         active or inactive tributary before changing its
         polling state to dying because of receive timeouts.
         Count is a decimal integer in the range 0-255."
     DEFVAL { 2 }
     ::= { phivControlParametersEntry 8 }

phivControlInactTreshold OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of times to poll the
         active tributary before changing its polling state to
         inactive because of no data response. Count is a
         decimal integer in the range
         0-255."
     DEFVAL { 8 }
     ::= { phivControlParametersEntry 9 }

phivControlPollingState OBJECT-TYPE





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     SYNTAX INTEGER {
         automatic (1),
         active (2),
         inactive (3),
         dying (4),
         dead (5)
     }
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the state of the tributary
         relative to the multipoint polling algorithm.  If not
         set the default is AUTOMATIC. The possible states are:

         AUTOMATIC

           The tributary's state is allowed to vary according to
           the operation of the polling algorithm.

         ACTIVE/INACTIVE/DYING/DEAD

           The tributary is locked in the specified state.

          NOTE: These values are incremented by one compared to
          the standard DECnet values in order to maintain
          compliance with RFC 1155."
     ::= { phivControlParametersEntry 10 }

phivControlPollingSubState OBJECT-TYPE
     SYNTAX INTEGER {
         active (1),
         inactive (2),
         dying (3),
         dead (4)
     }
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value represents the tributary's state as
         determined by the polling algorithm.  This applies
         only when the polling state is AUTOMATIC and is
         read-only to Network Management.  Polling-substate is
         one of ACTIVE, INACTIVE, DYING, or DEAD.  It is
         displayed as a tag on the polling state, for example:
         AUTOMATIC-INACTIVE."





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     ::= { phivControlParametersEntry 11 }

phivControlTransTimer OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This value represents the number of milliseconds to
         delay between data message transmits. Milliseconds is
         a decimal integer in the range 0-65535."
     DEFVAL { 0 }
     ::= { phivControlParametersEntry 12 }

- -- Ethernet Group

- -- The implementation of the Ethernet Group is mandatory
- -- for all systems which support ethernet links.

- -- Ethernet Parameters Table

phivEthLinkParametersTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivEthLinkParametersEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
          "Information about ethernet link parameters."
     ::= { ethernet 1}

phivEthLinkParametersEntry OBJECT-TYPE
     SYNTAX PhivEthLinkParametersEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Parameter information about ethernet links currently
         known."
     INDEX     { phivEthLinkIndex }
     ::= { phivEthLinkParametersTable 1 }

PhivEthLinkParametersEntry ::=
     SEQUENCE {
         phivEthLinkIndex
             INTEGER,
         phivEthDesigRouterNodeAddr
             PhivAddr,
         phivEthMaxRouters





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             INTEGER,
         phivEthRouterPri
             INTEGER,
         phivEthHardwareAddr
             OCTET STRING
      }

phivEthLinkIndex OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "The circuit over which this links information is
         collected.  This is the same as phivCircuitIndex."
     ::= { phivEthLinkParametersEntry 1 }

phivEthDesigRouterNodeAddr OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value is the address of the designated router."
     ::= { phivEthLinkParametersEntry 2 }

phivEthMaxRouters OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This parameter is the maximum number of routers (other
          than the executor itself) allowed on the circuit by
          Routing for circuits that are owned by the executor
          node."
     ::= { phivEthLinkParametersEntry 3 }

phivEthRouterPri OBJECT-TYPE
     SYNTAX INTEGER (0..127)
     ACCESS read-write
     STATUS mandatory
     DESCRIPTION
         "This parameter is the priority that this router is to
          have in the selection of designated router for the
          circuit on circuits that are owned by the executor
          node."
     DEFVAL { 64 }





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     ::= { phivEthLinkParametersEntry 4 }

phivEthHardwareAddr OBJECT-TYPE
     SYNTAX OCTET STRING (SIZE (6))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This read-only parameter is the address that is
         associated with the line device hardware as seen by
         the DECnet Software.  This value is not the same as
         ifPhysAddress."
     ::= { phivEthLinkParametersEntry 5 }

- -- Counters Group

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

- -- Counters Table

phivCountersCountTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivCountersCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Information about ethernet link counters."
     ::= { counters 1 }

phivCountersCountEntry OBJECT-TYPE
     SYNTAX PhivCountersCountEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "Counter information about ethernet links currently
         known."
     INDEX     { phivCountersIndex }
     ::= { phivCountersCountTable 1 }

PhivCountersCountEntry ::=
     SEQUENCE {
         phivCountersIndex
             InterfaceIndex,
         phivCountersCountBytesRecd
             PhivCounter,





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         phivCountersCountBytesSent
             PhivCounter,
         phivCountersCountDataBlocksRecd
             PhivCounter,
         phivCountersCountDataBlocksSent
             PhivCounter,
         phivCountersCountEthUsrBuffUnav
             PhivCounter,
         phivCountersCountMcastBytesRecd
             PhivCounter,
         phivCountersCountDataBlksRecd
             PhivCounter,
         phivCountersCountDataBlksSent
             PhivCounter,
         phivCountersCountMcastBlksRecd
             PhivCounter,
         phivCountersCountBlksSentDef
             PhivCounter,
         phivCountersCountBlksSentSingleCol
             PhivCounter,
         phivCountersCountBlksSentMultCol
             PhivCounter,
         phivCountersCountSendFailure
             PhivCounter,
         phivCountersCountCollDetectFailure
             PhivCounter,
         phivCountersCountReceiveFailure
             PhivCounter,
         phivCountersCountUnrecFrameDest
             PhivCounter,
         phivCountersCountDataOver
             PhivCounter,
         phivCountersCountSysBuffUnav
             PhivCounter,
         phivCountersCountUsrBuffUnav
             PhivCounter
      }

phivCountersIndex OBJECT-TYPE
     SYNTAX InterfaceIndex
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "The interface to which these counters apply.  This is
         the same interface as identified by the same value of





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         phivLineIndex. This value is the ifIndex."
     ::= { phivCountersCountEntry 1 }

phivCountersCountBytesRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of bytes received over this link."
     ::= { phivCountersCountEntry 2 }

phivCountersCountBytesSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of bytes sent over this link."
     ::= { phivCountersCountEntry 3 }

phivCountersCountDataBlocksRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "Number of data blocks received over this link."
     ::= { phivCountersCountEntry 4 }

phivCountersCountDataBlocksSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "Number of data blocks sent over this link."
     ::= { phivCountersCountEntry 5 }

phivCountersCountEthUsrBuffUnav OBJECT-TYPE
     SYNTAX PhivCounter (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of user buffer unavailable errors over this
         link."
     ::= { phivCountersCountEntry 6 }

phivCountersCountMcastBytesRecd OBJECT-TYPE





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     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of multicast bytes received over this link."
     ::= { phivCountersCountEntry 7 }

phivCountersCountDataBlksRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of data blocks received over this link."
     ::= { phivCountersCountEntry 8 }

phivCountersCountDataBlksSent OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of data blocks sent over this link."
     ::= { phivCountersCountEntry 9 }

phivCountersCountMcastBlksRecd OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of multicast blocks received over this link."
     ::= { phivCountersCountEntry 10 }

phivCountersCountBlksSentDef OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of blocks sent, initially deferred over this
         link."
     ::= { phivCountersCountEntry 11 }

phivCountersCountBlksSentSingleCol OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION





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         "Number of blocks sent, single collision over this link."
     ::= { phivCountersCountEntry 12 }

phivCountersCountBlksSentMultCol OBJECT-TYPE
     SYNTAX PhivCounter (0..2147483647)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of blocks sent, multiple collisions over this
         link."
     ::= { phivCountersCountEntry 13 }

phivCountersCountSendFailure OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of send failures over this link."
     ::= { phivCountersCountEntry 14 }

phivCountersCountCollDetectFailure OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of collision detect check failures over this
          link."
     ::= { phivCountersCountEntry 15 }

phivCountersCountReceiveFailure OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of receive failures over this link."
     ::= { phivCountersCountEntry 16 }

phivCountersCountUnrecFrameDest OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of unrecognized frame destinations over this
         link."
     ::= { phivCountersCountEntry 17 }





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phivCountersCountDataOver OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of data overruns over this link."
     ::= { phivCountersCountEntry 18 }

phivCountersCountSysBuffUnav OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of system buffer unavailables over this link."
     ::= { phivCountersCountEntry 19 }

phivCountersCountUsrBuffUnav OBJECT-TYPE
     SYNTAX INTEGER (0..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Number of user buffer unavailables."
     ::= { phivCountersCountEntry 20 }

- -- Adjacency Group

- -- The implementation of the Adjacency Group is mandatory for all
- -- conformant implementations of this memo.

- -- The phivAdjTable has been made obsolete it has been replaced with
- -- the phivAdjNodeTable.

phivAdjTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivAdjEntry
     ACCESS not-accessible
     STATUS obsolete
     DESCRIPTION
         "The Adjacency Table."
     ::= { adjacency 1 }

phivAdjEntry OBJECT-TYPE
     SYNTAX PhivAdjEntry
     ACCESS not-accessible
     STATUS obsolete





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     DESCRIPTION
         "There is one entry in the table for each adjacency."
     INDEX  { phivAdjCircuitIndex }
     ::= { phivAdjTable 1 }

PhivAdjEntry ::=
     SEQUENCE {
         phivAdjCircuitIndex
             INTEGER,
         phivAdjNodeAddr
             PhivAddr,
         phivAdjBlockSize
             INTEGER,
         phivAdjListenTimer
             INTEGER (1..65535),
         phivAdjCircuitEtherServPhysAddr
             OCTET STRING,
         phivAdjType
             INTEGER,
         phivAdjState
             INTEGER,
         phivAdjPriority
             INTEGER,
         phivAdjExecListenTimer
             INTEGER (1..65535)
      }
phivAdjCircuitIndex OBJECT-TYPE
     SYNTAX INTEGER
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "A unique index value for each known circuit."
     ::= { phivAdjEntry 1 }

phivAdjNodeAddr OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "The address of the adjacent node."
     ::= { phivAdjEntry 2 }

phivAdjBlockSize OBJECT-TYPE
     SYNTAX INTEGER
     ACCESS read-only





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     STATUS obsolete
     DESCRIPTION
         "This read-only parameter is the block size that was
         negotiated with the adjacent Routing layer during Routing
         initialization over a particular circuit. It includes the
         routing header, but excludes the data link header. This
         parameter is qualified by ADJACENT NODE."
     ::= { phivAdjEntry 3 }

phivAdjListenTimer OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "This value determines the maximum number of seconds
         allowed to elapse before Routing receives some message
         (either a Hello message or a user message) from the
         adjacent node on the circuit. It was agreed during
         Routing initialization with the adjacent Routing layer.
         This parameter is qualified by ADJACENT NODE."
     ::= { phivAdjEntry 4 }

phivAdjCircuitEtherServPhysAddr OBJECT-TYPE
     SYNTAX OCTET STRING ( SIZE (6) )
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "This parameter indicates the Ethernet physical address
         of an adjacent node that is being serviced on this
         circuit. This parameter is a qualifier for SERVICE
         SUBSTATE."
     ::= { phivAdjEntry 5 }

phivAdjType 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 adjacency.





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         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)"
     ::= { phivAdjEntry 6 }

phivAdjState OBJECT-TYPE
     SYNTAX INTEGER {
         initializing (1),          -- Ethernet one-way
         up (2),                    -- Ethernet two-way
         run (3),                   -- The eight DDCMP/X.25 states
         circuit-rejected (4),
         data-link-start (5),
         routing-layer-initialize (6),
         routing-layer-verify (7),
         routing-layer-complete (8),
         off (9),
         halt (10)
     }
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "This value indicates the state of a router adjacency.
         On adjacencies over a circuit of type
         (phivCircuitCommonType) Ethernet, CI, or FDDI, with an
         adjacent node of type (phivAdjType) ROUTING IV or AREA,
         this variable is the state of the Ethernet
         Initialization Layer for this adjacency, and can have
         values INITIALIZING or UP. (See Section 9.1.1 of
         DECnet Phase IV Routing Layer Functional Specification.)

         On adjacencies over a circuit of type
         (phivCircuitCommonType) Ethernet, CI, or FDDI, with an
         adjacent node of type (phivAdjType) NONROUTING IV,
         this variable will always take on the value UP.

         On adjacencies over a circuit of type
         (phivCircuitCommonType) DDCMP POINT, DDCMP CONTROL,
         DDCMP TRIBUTARY, DDCMP DMC, or X.25, this variable is
         the state of the Routing Layer Initialization Circuit
         State. (See section 7.3, ibid.)  It can have values
         between RUN and HALT.






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         On adjacencies over a circuit of type
         (phivCircuitCommonType) OTHER, this variable may be
         used in a manner consistent with the Initialization
         Layer used on that circuit."
     ::= { phivAdjEntry 7 }

phivAdjPriority OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "Priority assigned by the adjacent node for this
         circuit."
  ::= { phivAdjEntry 8 }

phivAdjExecListenTimer OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS obsolete
     DESCRIPTION
         "This read-only value determines the maximum number of
         seconds allowed to elapse before Routing receives some
         message (either a Hello message or a user message) from
         the adjacent node on the circuit. It was agreed during
         Routing initialization with the adjacent Routing layer."
     ::= { phivAdjEntry 9 }

- -- New Adjacency Table this replaces the phivAdjTable.

phivAdjNodeTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivAdjNodeEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "The Adjacent Node Table."
     ::= { adjacency 2 }

phivAdjNodeEntry OBJECT-TYPE
     SYNTAX PhivAdjNodeEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "There is one entry in the table for each adjacency."
     INDEX  { phivAdjNodeCircuitIndex, phivAdjAddr }
     ::= { phivAdjNodeTable 1 }





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PhivAdjNodeEntry ::=
     SEQUENCE {
         phivAdjNodeCircuitIndex
             INTEGER,
         phivAdjAddr
             PhivAddr,
         phivAdjNodeBlockSize
             INTEGER,
         phivAdjNodeListenTimer
             INTEGER,
         phivAdjNodeCircuitEtherServPhysAddr
             OCTET STRING,
         phivAdjNodeType
             INTEGER,
         phivAdjNodeState
             INTEGER,
         phivAdjNodePriority
             INTEGER
      }

phivAdjNodeCircuitIndex OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "A unique index value for each known circuit.  This
         value is the same as phivCircuitIndex and identifies the
         circuit over which the adjacency is realized."
     ::= { phivAdjNodeEntry 1 }

phivAdjAddr OBJECT-TYPE
     SYNTAX PhivAddr -- OCTET STRING (SIZE (2))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "The address of the adjacent node."
     ::= { phivAdjNodeEntry 2 }

phivAdjNodeBlockSize OBJECT-TYPE
     SYNTAX INTEGER
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This read-only parameter is the block size that was
         negotiated with the adjacent Routing layer during Routing





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         initialization over a particular circuit. It includes the
         routing header, but excludes the data link header. This
         parameter is qualified by ADJACENT NODE."
     ::= { phivAdjNodeEntry 3 }

phivAdjNodeListenTimer OBJECT-TYPE
     SYNTAX INTEGER (1..65535)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value determines the maximum number of seconds
         allowed to elapse before Routing receives some message
         (either a Hello message or a user message) from the
         adjacent node on the circuit. It was agreed during
         Routing initialization with the adjacent Routing layer.
         This parameter is qualified by ADJACENT NODE."
     ::= { phivAdjNodeEntry 4 }

phivAdjNodeCircuitEtherServPhysAddr OBJECT-TYPE
     SYNTAX OCTET STRING (SIZE (6))
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This parameter indicates the Ethernet physical address
         of an adjacent node that is being serviced on this
         circuit. This parameter is a qualifier for SERVICE
         SUBSTATE."
     ::= { phivAdjNodeEntry 5 }

phivAdjNodeType OBJECT-TYPE
     SYNTAX INTEGER {
         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 adjacency.

         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





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         incremented by one compared to the standard DECnet
         values in order to maintain compliance with RFC 1155)"
     ::= { phivAdjNodeEntry 6 }

phivAdjNodeState OBJECT-TYPE
     SYNTAX INTEGER {
         initializing (1),          -- Ethernet one-way
         up (2),                    -- Ethernet two-way
         run (3),                   -- The eight DDCMP/X.25 states
         circuit-rejected (4),
         data-link-start (5),
         routing-layer-initialize (6),
         routing-layer-verify (7),
         routing-layer-complete (8),
         off (9),
         halt (10)
     }
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "This value indicates the state of a router adjacency.
         On adjacencies over a circuit of type
         (phivCircuitCommonType) Ethernet, CI, or FDDI, with an
         adjacent node of type (phivAdjNodeType) ROUTING IV or AREA,
         this variable is the state of the Ethernet
         Initialization Layer for this adjacency, and can have
         values INITIALIZING or UP. (See Section 9.1.1 of
         DECnet Phase IV Routing Layer Functional Specification.)

         On adjacencies over a circuit of type
         (phivCircuitCommonType) Ethernet, CI, or FDDI, with an
         adjacent node of type (phivAdjNodeType) NONROUTING IV,
         this variable will always take on the value UP.

         On adjacencies over a circuit of type
         (phivCircuitCommonType) DDCMP POINT, DDCMP CONTROL,
         DDCMP TRIBUTARY, DDCMP DMC, or X.25, this variable is
         the state of the Routing Layer Initialization Circuit
         State. (See section 7.3, ibid.)  It can have values
         between RUN and HALT.

         On adjacencies over a circuit of type
         (phivCircuitCommonType) OTHER, this variable may be
         used in a manner consistent with the Initialization
         Layer used on that circuit."





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     ::= { phivAdjNodeEntry 7 }

phivAdjNodePriority OBJECT-TYPE
     SYNTAX INTEGER (0..255)
     ACCESS read-only
     STATUS mandatory
     DESCRIPTION
         "Priority assigned by the adjacent node for this
         circuit."
        ::= { phivAdjNodeEntry 8 }

- -- Line Group

- -- The implementation of the Line Group is mandatory for all
- -- conformant implementations of this memo.

phivLineTable OBJECT-TYPE
     SYNTAX SEQUENCE OF PhivLineEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "The Line Table."
     ::= { line 1 }

phivLineEntry OBJECT-TYPE
     SYNTAX PhivLineEntry
     ACCESS not-accessible
     STATUS mandatory
     DESCRIPTION
         "There is one entry in the table for each line."
     INDEX  { phivLineIndex }
     ::= { phivLineTable 1 }

PhivLineEntry ::=
     SEQUENCE {
         phivLineIndex
             InterfaceIndex,
         phivLineName
             DisplayString,
         phivLineState
             INTEGER,
         phivLineSubstate
             INTEGER,
         phivLineService
             INTEGER,





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         phivLineDevice
             DisplayString,
         phivLineReceiveBuffs
             INTEGER,
         phivLineProtocol
             INTEGER,
         phivLineServiceTimer
             INTEGER,
         phivLineMaxBlock
             INTEGER
     }

phivLineIndex OBJECT-TYPE
     SYNTAX InterfaceIndex
     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 }






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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
     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





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     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),
         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





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         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
     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





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             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
         "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





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     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:

         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 }






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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 }
     ::= { phivAreaTable 1 }

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





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             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 }

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 }





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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
         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)





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     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








































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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







































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8.  References


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

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

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

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

McCloghrie K., and M. Rose, Editors, "Management Information Base for
Network Management of TCP/IP-based internets", RFC 1213, Performance
Systems International, March 1991.

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

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

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

Digital Equipment Corporation, "DECnet-ULTRIX USE Guide", Digital Equip-
ment Corporation, Maynard, Massachusetts.

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

Digital Equipment Corporation, "DECnet DIGITAL Network Architecture,
Routing Layer Functional Specification", Version 2.0.0.  Digital Equip-
ment Corporation, Maynard, Massachusetts, May 1983.








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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

     Voice: +1 508-952-3171
     Email: saperia@tay.dec.com






























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Table of Contents


1 Introduction ....................................................    2
2 Changes from RFC 1289 ...........................................    3
3 The Network Management Framework ................................    4
3.1 Object Definitions ............................................    4
4 Selected Objects ................................................    5
5 Textual Conventions .............................................    7
6 Definitions .....................................................    8
7 Acknowledgements ................................................   76
8 References ......................................................   77
9 Security Considerations .........................................   78
10 Author's Address ...............................................   78




































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