RFC1559

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Network Working Group J. Saperia Request for Comments: 1559 Digital Equipment Corporation Obsoletes: 1289 December 1993 Category: Standards Track

                 DECnet Phase IV MIB Extensions

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

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 RFC 1289.

When used in conjunction with the structure of management information (STD 16, RFC 1155), the management information base for network management of TCP/IP-based internets (STD 17, RFC 1213) and the Simple Network Management Protocol (STD 15, 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 (STD 15, RFC 1157), the management information base for network management of TCP/IP-based internets (STD 17, RFC 1213), and the structure of

management information (STD 16, 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 networks.

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 Equipment Corporation specific hardware platforms is not included in this document.

The Network Management Framework

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

o STD 16, RFC 1155 which defines the SMI, the mechanisms used for

 describing and naming objects for the purpose of management.
 STD 16, RFC 1212 defines a more concise description mechanism,
 which is wholly consistent with the SMI.

o STD 17, RFC 1213 defines MIB-II, the core set of managed objects

 for the Internet suite of protocols.

o STD 15, 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.

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.

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 Executor 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 STD 16, RFC 1155. A complete description of an object will include the name, syntax and encoding. Just as with objects supported in the MIB (STD 17, 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 STD 17, 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 only the DECnet software and is not intended to effect any other protocols which may be running on the system.

Textual Conventions

New datatypes have been introduced as a textual conventions in this DECnet Phase IV MIB document. The purpose of these additions is to facilitate 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).

Definitions

    DECNET-PHIV-MIB 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 ::= { mib-2 18 }

-- 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 }
     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 }

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
        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."
    ::= { 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
        "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
        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
            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
    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 }

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
    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
        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.

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))
    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."
    ::= { 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,
        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.
        (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
    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 }

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))
    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
    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
    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
    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."
    ::= { 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
    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
        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
        "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
            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
    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 }

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 }

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

    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
    }

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"
    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."
    ::= { 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

    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
        "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 }

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 }

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
        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
    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

    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."
    ::= { 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
            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 }
    ::= { 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,
        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
        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

    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
        "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 }

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
    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
    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.
        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.
        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 }

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
        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
        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."
    ::= { 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,
        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 }

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
    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
        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
            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

    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 }

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
            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 }

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)
    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

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.

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

References

[1] Cerf, V., "IAB Recommendations for the Development of Internet

   Network Management Standards", RFC 1052, NRI, April 1988.

[2] Rose M., and K. McCloghrie, "Structure and Identification of

   Management Information for TCP/IP-based internets", STD 16, RFC
   1155, Performance Systems International, Hughes LAN Systems, May
   1990.

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

   for Network Management of TCP/IP-based internets MIB-II", STD 17,
   RFC 1213, Hughes LAN Systems, Performance Systems International,
   March 1991.

[4] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple

   Network Management Protocol", STD 15, RFC 1157, SNMP Research,
   Performance Systems International, Performance Systems
   International, MIT Laboratory for Computer Science, May 1990.

[5] Rose, M., and K. McCloghrie, Editors, "Concise MIB Definitions",

   STD 16, RFC 1212, Performance Systems International, Hughes LAN
   Systems, March 1991.

[6] Cook, J., Editor, "Definitions of Managed Objects for the

   Ethernet-like Interface Types", RFC 1284, Chipcom Corporation,
   December 1991.

[7] Digital Equipment Corporation, "DECnet-ULTRIX NCP Command

   Reference", Digital Equipment Corporation, Maynard,
   Massachusetts.

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

   Equipment Corporation, Maynard, Massachusetts.

[9] Digital Equipment Corporation, "DECnet DIGITAL Network

   Architecture, Network Management Functional Specification",
   Version 4.0.0. Digital Equipment Corporation, Maynard,
   Massachusetts, July 1983.
 [10] Digital Equipment Corporation, "DECnet DIGITAL Network
   Architecture, Routing Layer Functional Specification", Version
   2.0.0.  Digital Equipment Corporation, Maynard, Massachusetts,
   May 1983.

Security Considerations

Security issues are not discussed in this memo.

10. Author's Address

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

Phone: +1 508-952-3171 EMail: [email protected]