Internet Engineering Task Force                              Jeff Parker
INTERNET DRAFT                                         Axiowave Networks
Expiration Date: Feb 2003                                       Aug 2002


                 Management Information Base for IS-IS
                    <draft-ietf-isis-wg-mib-09.txt>



1. Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

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

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.



   Copyright Notice Copyright (C) The Internet Society (2002).  All
   Rights Reserved.
















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2. Abstract

   This document describes a management information base for the IS-IS
   Routing protocol, as described in ISO 10589 [2], when it is used to
   construct routing tables for IP networks, as described in RFC 1195
   [RFC1195].

   This memo defines an experimental portion of the Management
   Information Base (MIB) for use with network management protocols in
   the Internet community.

   This memo is based on an IETF draft by Chris Gunner [1].  This
   version has been modified to include MIB-II syntax, to exclude
   portions of the protocol that are not relevant to IP, such as the
   ES-IS protocol, and to add management support for current practice.




3. Table of Contents

       1.  Status of this Memo..................................    1
       2.  Abstract.............................................    2
       3.  Table of Contents....................................    2
       4.  Overview.............................................    2
       5.  Definition of IS-IS MIB..............................    6
       6.  Acknowledgments......................................   79
       7.  Security Considerations..............................   80
       8.  References...........................................   81
       9.  Authors' Address.....................................   83
      10.  Full Copyright Statement.............................   83


4. Overview

   This document is provided to the IETF working group on IS-IS.

   The IS-IS MIB includes of the following objects


   System-wide Attributes

  - isisSystem

       This table contains information specific to a single instance of
       the IS-IS protocol running on a router.

  - isisManAreaAddr



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       This table includes area addresses manually configured which are
       used to control the associations formed between Level 1
       Intermediate Systems.

  - isisAreaAddr

       This table includes area addresses reported in relevant L1 LSPs.

  - isisSysProtSupp

       This table includes the manually configured list of protocols,
       such as IP or CLNS, supported by the Intermediate System.

  - isisSummAddr

       This table holds summary addresses configured for each Level 2
       instance of the IS-IS protocol running on a router.



  Circuit-specific Attributes

  - isisCirc

       This table contains information specific to a broadcast or
       point-to-point interface in the system.

  - isisCircLevel

       This table contains information specific to a one Level 1 or
       Level 2 of an interface.



  Counters


  - isisSystemCounter

       Counters in the System table, such as times we have wraped a
       sequence counter on one of our Link State PDUs.

  - isisCircuitCounter

       Counters of events particular to a circuit, such as PDUs with an
       illegal value of the System ID field length.

  - isisPacketCounter



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       Counts of ISIS Protocol PDUs broken down into packet type.



  Attributes associated with an Adjacency

  - isisISAdj

       This table contains information about adjacencies to routers
       maintained by the protocol.  Entries in this table cannot be
       created by management action: they are established through the
       Hello protocol.

  - isisISAdjAreaAddr

       This table contains the set of Area Addresses of neighboring
       Intermediate Systems as reported in IIH PDUs.

  - isisISAdjIPAddr

       This table contains the set of IP Addresses of neighboring
       Intermediate Systems as reported in received IIH PDUs.

  - isisISAdjProtSupp

       This table contains the set of protocols supported by neighboring
       Intermediate Systems as reported in received IIH PDUs.



  Attributes associated with configured addresses

  - isisRA

       The Reachable Address Table.

       This table contains information about an address prefix manually
       configured on the system or learned through another protocol.

  - isisIPRA

       The IP Reachable Address Table.

       This table contains information about IP reachable address
       manually configured on this system or learned from another
       protocol.





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  Attributes associated with a Notification

  - isisNotification

       This table defines attributes that will be included when
       reporting IS-IS notifications.


   The SNMP Management Framework presently consists of five major
   components:

   An overall architecture, described in RFC 2571 [RFC2571].

   Mechanisms for describing and naming objects and events for the
   purpose of management.  The first version of this Structure of
   Management Information (SMI) is called SMIv1 and described in STD 16,
   RFC 1155 [RFC1155], STD 16, RFC 1212 [RFC1212] and RFC 1215
   [RFC1215].  The second version, called SMIv2, is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].

   Message protocols for transferring management information.  The first
   version of the SNMP message protocol is called SNMPv1 and described
   in STD 15, RFC 1157 [RFC1157].  A second version of the SNMP message
   protocol, which is not an Internet standards track protocol, is
   called SNMPv2c and described in RFC 1901 [RFC1901] and RFC 1906
   [RFC1906].  The third version of the message protocol is called
   SNMPv3 and described in RFC 1906 [RFC1906], RFC 2572 [RFC2572] and
   RFC 2574 [RFC2574].

   Protocol operations for accessing management information.  The first
   set of protocol operations and associated PDU formats is described in
   STD 15, RFC 1157 [RFC1157].  A second set of protocol operations and
   associated PDU formats is described in RFC 1905 [RFC1905].

   A set of fundamental applications described in RFC 2573 [RFC2573] and
   the view-based access control mechanism described in RFC 2575
   [RFC2575].

   A more detailed introduction to the current SNMP Management Framework
   can be found in RFC 2570 [RFC2570].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the mechanisms defined in the SMI.

   This memo specifies a MIB module that is compliant to the SMIv2.  A
   MIB conforming to the SMIv1 can be produced through the appropriate



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   translations.  The resulting translated MIB must be semantically
   equivalent, except where objects or events are omitted because no
   translation is possible (use of Counter64).  Some machine readable
   information in SMIv2 will be converted into textual descriptions in
   SMIv1 during the translation process.  However, this loss of machine
   readable information is not considered to change the semantics of the
   MIB.




5. Definition of IS-IS MIB


-- Changes in version 09
--      Remove isisCircMCAddr.  Token Ring now uses proper MCast addresses
--      Fixed order of indicies in isisIPRATable
--      Added WideMetric and FullMetric to compliment DefaultMetric
--      Added these to several objects
--      Dropped AdminState from isisSummAddrTable. Only L1 to L2 makes sense
--      Added isisRedistributeAddrTable to manage Domain Wide Prefixes
--      Replace isisISAdjProtSuppIndex with isisISAdjIndex
--      Moving counters to a new subtree.  Have three types
--                { system, level }                     - System wide
--                { system, circuit, level }            - per circuit specific
--                { system, circuit, level, direction } - PDU counts
--      Removed MaxAreaCheck.  All implementations should check
--      Moved isisSysExistState
--      Replaced isisCircLevelLANDesISChanges with isisCircLANDesISChanges
--      Restored definition of ManualOrAutomatic behavior
--      More objects include the ManualOrAutomatic behavior
--      Remove definition of OperationalState behaviour
--      Fixed "may set the state to 'waiting'" rather than wait
--      Changed syntax of isisCircSmallHellos from AdminState to TruthValue
--      AdminState values swapped to line up with RFC 2863
--      CircuitID is always 7 bytes
--      Formating changes to regularize spacing.
--      Replaced isisCircPtToPtCircID with isisCircLevelCircID
--      Removed isisISAdjAreaAddress as an index to isisISAdjAreaAddrTable.

ISIS-MIB DEFINITIONS ::= BEGIN

     IMPORTS
        TEXTUAL-CONVENTION, DisplayString, RowStatus, TruthValue,
            TestAndIncr
                FROM SNMPv2-TC
        MODULE-IDENTITY, OBJECT-TYPE, OBJECT-IDENTITY, NOTIFICATION-TYPE,
            Integer32, Counter32, experimental



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                FROM SNMPv2-SMI
        MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
                FROM SNMPv2-CONF
        InetAddressType, InetAddress, InetAddressPrefixLength
                FROM INET-ADDRESS-MIB;

    isisMIB MODULE-IDENTITY
        LAST-UPDATED "200208131200Z" -- UTC date of the most recent REVISION.
        ORGANIZATION "IETF IS-IS for IP Internets Working Group"
        CONTACT-INFO
            "Jeff Parker
             Axiowave Networks
             200 Nickerson Rd.
             Marlborough, MA 01752

             jparker@axiowave.com"

        DESCRIPTION
            "This document describes a management information base for
             the IS-IS Routing protocol, as described in ISO 10589,
             when it is used to construct routing tables for IP networks,
             as described in RFC 1195.

             This document defines an experimental portion of the
             Management Information Base (MIB) for use with network
             management protocols in the Internet community.

             This document is based on a 1994 IETF draft by Chris Gunner.
             This version has been modified to include MIB-II syntax, to
             exclude portions of the protocol that are not relevant to IP,
             and to add management support for current practice."

    ::= { experimental 37 }

-- Top-level structure of the MIB

isisObjects             OBJECT IDENTIFIER ::= { isisMIB 1 }
isisNotifications       OBJECT IDENTIFIER ::= { isisMIB 2 }
isisConformance         OBJECT IDENTIFIER ::= { isisMIB 3 }

-- OBJECT IDENTIFIER definitions

    isisSystem OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "The object describes system wide attributes."
    ::= { isisObjects 1 }




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    isisCirc OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "This object describes attributes associated with
             one Circuit"
    ::= { isisObjects 2 }

    isisCircLevelValues OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "This object describes attributes associated with
             area or domain relevant within a Circuit."
    ::= { isisObjects 3 }

    isisCounters OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "This object collects system and circuit counters"
    ::= { isisObjects 4 }

    isisISAdj OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "This object describes attributes associated with an
             adjacent Protocol Peer."
    ::= { isisObjects 5 }

    isisReachAddr OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "This object describes attributes associated with
             a configured address"
    ::= { isisObjects 6 }

    isisIPReachAddr OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "This object describes attributes associated with
             IP routes learned by configuration or through another
             protocol."
    ::= { isisObjects 7 }

    isisNotification OBJECT-IDENTITY
        STATUS current
        DESCRIPTION
            "Objects included in Notifications."
    ::= { isisObjects 8 }




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-- Type definitions

    OSINSAddress ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "OSI Network Service Address, e.g. NSAP, SNPA, or Network
             Entity Title"
        SYNTAX OCTET STRING (SIZE(0..21))

    SystemID ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "A system ID."
    SYNTAX OCTET STRING (SIZE(0..6))

    LinkStatePDUID ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "A Link State PDU Identifier."
        SYNTAX OCTET STRING (SIZE(8))

    AdminState ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Type used in enabling and disabling a row.
             Values match those in RFC 2863."
        SYNTAX INTEGER
            {
                on(1),
                off(2)
            }

    UpTime ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Number of seconds since the object has entered the state 'up'.
             If the object is not up, the number of seconds since the
             circuit was up, or since the system started, if the circuit
             has never been up."
        SYNTAX Integer32

    LSPBuffSize ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Integer sub range for LSP size."
        SYNTAX Integer32 (512..16000)

    LevelState ::= TEXTUAL-CONVENTION



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        STATUS current
        DESCRIPTION
            "States of the ISIS protocol."
        SYNTAX INTEGER
            {
                off (1),
                on (2),
                waiting (3),
                overloaded(4)
            }

    SupportedProtocol ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Types of network protocol supported by Integrated ISIS.
             The values for ISO8473 and IP are those registered for
             these protocols in ISO TR9577."
        SYNTAX INTEGER
            {
                iso8473(129),
                ip(204),
                ipV6(205)
            }

    DefaultMetric ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Integer sub-range for default metric for single hop.
             ISO 10589 provides for 4 types of metric.  Only the
             'default' metric is used in practice."
        SYNTAX Integer32 (0..63)

    WideMetric ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Wide Metric for IS Neighbors.  ISO 10589 provides a 6 bit metric.
             Traffic Engineering extensions provide 24 bit metrics."
        SYNTAX Integer32 (0..16777215)

    FullMetric ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Full Metric for IP Routes.  Traffic Engineering extensions
             provide 32 bit metrics."
        SYNTAX Integer32

    MetricType ::= TEXTUAL-CONVENTION
        STATUS current



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        DESCRIPTION
            "Is this an Internal or External Metric?"
        SYNTAX INTEGER
            {
                internal(1),
                external(2)
            }

    MetricStyle ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Do we use 1195 style Metrics or wide metrics."
        SYNTAX INTEGER
            {
                narrow(1),
                wide(2),
                both(3)
            }

    ISLevel ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Identifies a level."
        SYNTAX INTEGER
            {
                area(1),
                domain(2),
                none(3)
            }

    IsisPDUHeader ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "A block to contain the header from a PDU."
        SYNTAX OCTET STRING (SIZE(1..64))

    CircuitID ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "ID for a circuit."
        SYNTAX OCTET STRING (SIZE(7))

    ISPriority ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Integer sub-range for ISIS priority."
        SYNTAX Integer32 (1..127)




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-- Behavior Definitions

-- ResettingTimer behavior definition
-- "This object specifies the interval between certain events in
-- the operation of the protocol state machine. If the value of
-- this object is set to a new value while the protocol state
-- machine is in operation, the implementation shall take the
-- necessary steps to ensure that for any time interval which
-- was in progress when the value of the corresponding object
-- was changed, the next expiration of that interval takes place
-- the specified time after the original start of that interval,
-- or immediately, whichever is later. The precision with which
-- this time shall be implemented shall be the same as that
-- associated with the basic operation of the timer object."

-- ReplaceOnlyWhileDisabled behavior definition
-- "This object may not be modified while the corresponding
-- table row's variable of type AdminState is in state on."

-- ManualOrAutomatic behavior definition
-- "The access of this object is read-write if the row to which
-- it belongs is manual (i.e. is being or was created manually)
-- otherwise (i.e. was created automatically) it is read-only."


    isisSysTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisSysEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The set of instance of the Integrated IS-IS
             protocol existing on the system."
    ::= { isisSystem 1 }

    isisSysEntry OBJECT-TYPE
        SYNTAX IsisSysEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each row defines information specific to a single
             instance of the IS-IS protocol existing on the system."
        REFERENCE "{ISIS.poi cLNSISISBasic-P (1)}"
        INDEX { isisSysInstance }
    ::= { isisSysTable 1 }

    IsisSysEntry ::=
        SEQUENCE {
            isisSysInstance



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                Integer32,
            isisSysVersion
                DisplayString,
            isisSysType
                INTEGER,
            isisSysID
                SystemID,
            isisSysMaxPathSplits
                Integer32,
            isisSysMaxLSPGenInt
                Integer32,
            isisSysOrigL1LSPBuffSize
                LSPBuffSize,
            isisSysMaxAreaAddresses
                Integer32,
            isisSysMinL1LSPGenInt
                Integer32,
            isisSysMinL2LSPGenInt
                Integer32,
            isisSysPollESHelloRate
                Integer32,
            isisSysWaitTime
                Integer32,
            isisSysAdminState
                AdminState,
            isisSysL1State
                LevelState,
            isisSysOrigL2LSPBuffSize
                LSPBuffSize,
            isisSysL2State
                LevelState,
            isisSysLogAdjacencyChanges
                TruthValue,
            isisSysNextCircIndex
                TestAndIncr,
            isisSysL2toL1Leaking
                TruthValue,
            isisSysSetOverload
                INTEGER,
            isisSysL1MetricStyle
                MetricStyle,
            isisSysL1SPFConsiders
                MetricStyle,
            isisSysL2MetricStyle
                MetricStyle,
            isisSysL2SPFConsiders
                MetricStyle,
            isisSysTEEnabled



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                ISLevel,
            isisSysMaxAge
                Integer32,
            isisSysReceiveLSPBufferSize
                Integer32,
            isisSysExistState
                RowStatus
        }

    isisSysInstance OBJECT-TYPE
        SYNTAX Integer32 (1..10000)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The unique identifier of the Integrated IS-IS
             instance to which this row corresponds.
             This object follows the index behavior."
    ::= { isisSysEntry 1 }

    isisSysVersion OBJECT-TYPE
        SYNTAX DisplayString
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The version number of the IS-IS protocol which this
             instance implements."
        REFERENCE "{ISIS.aoi version (1)}"
        DEFVAL { "1" }
    ::= { isisSysEntry 2 }

    isisSysType OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1IS (1),
                level2IS (2),
                level1L2IS (3)
            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The type of this instance of the Integrated
             IS-IS protocol. This object follows the
             replaceOnlyWhileDisabled behavior."
        REFERENCE "{ISIS.aoi iSType (2)}"
        DEFVAL { level1L2IS }
    ::= { isisSysEntry 3 }

    isisSysID OBJECT-TYPE



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        SYNTAX SystemID
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The ID for this instance of the Integrated IS-IS
             protocol. This value is appended to each of the
             area addresses to form the Network Entity Titles.
             The derivation of a value for this object is
             implementation-specific.  Some implementations may
             automatically assign values and not permit an
             SNMP write, while others may require the value
             to be set manually."
        REFERENCE "{ISIS.aoi systemId (119)}"
    ::= { isisSysEntry 4 }

    isisSysMaxPathSplits OBJECT-TYPE
        SYNTAX Integer32 (1..32)
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Maximum number of paths with equal routing metric value
             which it is permitted to split between. This object
             follows the replaceOnlyWhileDisabled behavior."
        REFERENCE "{ISIS.aoi maximumPathSplits (3)}"
        DEFVAL { 2 }
    ::= { isisSysEntry 5 }

    isisSysMaxLSPGenInt OBJECT-TYPE
        SYNTAX Integer32 (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Maximum interval, in seconds, between generated LSPs
             by this instance of the protocol. This object follows
             the resettingTimer behavior.
             Should be at least 300 seconds less than isisSysMaxAge."
        REFERENCE "{ISIS.aoi maximumLSPGenerationInterval (6)}"
        DEFVAL { 900 }
    ::= { isisSysEntry 6 }

    isisSysOrigL1LSPBuffSize OBJECT-TYPE
        SYNTAX LSPBuffSize
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The maximum size of Level 1 LSPs and SNPs originated by
             this instance of the protocol. This object follows the



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             replaceOnlyWhileDisabled behavior."
        REFERENCE "{ISIS.aoi originatingL1LSPBufferSize (9)}"
        DEFVAL { 1492 }
    ::= { isisSysEntry 7 }

    isisSysMaxAreaAddresses OBJECT-TYPE
        SYNTAX Integer32 (3..254)
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The maximum number of area addresses to be permitted for
             this instance of the protocol. Note that all
             Intermediate Systems in the same area must have the same
             value configured for this attribute if correct operation
             is to be assumed. This object follows the
             replaceOnlyWhileDisabled behavior."
        REFERENCE "{ISIS.aoi maximumAreaAddresses (4)}"
        DEFVAL { 3 }
    ::= { isisSysEntry 8 }

    isisSysMinL1LSPGenInt OBJECT-TYPE
        SYNTAX Integer32 (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Minimum interval, in seconds, between successive generation
             of L1 LSPs with the same LSPID by this instance of the protocol.
             This object follows the resettingTimer behavior."
        REFERENCE "{ISIS.aoi minimumLSPGenerationInterval (11)}"
        DEFVAL { 30 }
    ::= { isisSysEntry 9 }

    isisSysMinL2LSPGenInt OBJECT-TYPE
        SYNTAX Integer32 (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Minimum interval, in seconds, between successive generation
             of L2 LSPs with the same LSPID by this instance of the protocol.
             This object follows the resettingTimer behavior."
        REFERENCE "{ISIS.aoi minimumLSPGenerationInterval (11)}"
        DEFVAL { 30 }
    ::= { isisSysEntry 10 }

    isisSysPollESHelloRate OBJECT-TYPE
        SYNTAX Integer32 (1..65535)



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        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The value, in seconds, to be used for the suggested ES
             configuration timer in ISH PDUs when soliciting the ES
             configuration."
        REFERENCE "{ISIS.aoi pollESHelloRate (13)}"
        DEFVAL { 50 }
    ::= { isisSysEntry 11 }

    isisSysWaitTime OBJECT-TYPE
        SYNTAX Integer32 (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Number of seconds to delay in waiting state before
             entering on state. This object follows the resettingTimer
             behavior."
        REFERENCE "{ISIS.aoi waitingTime (15)}"
        DEFVAL { 60 }
    ::= { isisSysEntry 12 }

    isisSysAdminState OBJECT-TYPE
        SYNTAX AdminState
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The administrative state of this instance of the
             Integrated IS-IS protocol. Setting this object to the
             value 'on' when its current value is 'off' enables operation
             of this instance of the Integrated IS-IS protocol."
        DEFVAL { off }
    ::= { isisSysEntry 13 }

    isisSysL1State OBJECT-TYPE
        SYNTAX LevelState
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The state of the Level 1 database.
             The value 'overloaded' indicates a database that is
             low on an essential resource, such as memory.
             The administrator may set the state to 'waiting' when
             the router is initializing by setting the object
             isisSysSetOverload.
             If the state is waiting or overloaded, we



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             originate LSPs with the Overload bit set."
        REFERENCE "{ISIS.aoi l1State (17)}"
    ::= { isisSysEntry 14 }

-- The following objects map those from the cLNSISISLevel2-P
-- Package

    isisSysOrigL2LSPBuffSize OBJECT-TYPE
        SYNTAX LSPBuffSize
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The maximum size of Level 2 LSPs and SNPs originated by
             this system. This object follows the
             replaceOnlyWhileDisabled behavior."
        REFERENCE "{ISIS.aoi originatingL2LSPBufferSize (26)}"
        DEFVAL { 1492 }
    ::= { isisSysEntry 15 }

    isisSysL2State OBJECT-TYPE
        SYNTAX LevelState
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The state of the Level 2 database.
             The value 'overloaded' indicates a database that is
             low on an essential resource, such as memory.
             The administrator may set the state to 'waiting' when
             the router is initializing by setting the object
             isisSysSetOverload.
             If the state is waiting or overloaded, we
             originate LSPs with the Overload bit set."
        REFERENCE "{ISIS.aoi l2State (28)}"
    ::= { isisSysEntry 16 }

    isisSysLogAdjacencyChanges OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "If true, causes IS-IS to generate a log message when an
             IS-IS adjacency changes state (up or down)."
        DEFVAL { false }
    ::= { isisSysEntry 17 }

    isisSysNextCircIndex OBJECT-TYPE
        SYNTAX TestAndIncr
        MAX-ACCESS read-only



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        STATUS current
        DESCRIPTION
            "This object is used to assign values to
             isisCircIndex as described in 'Textual
             Conventions for SNMPv2'.  The network manager
             reads this object, and then writes the value
             back as the isisCircIndex in a SET that creates
             a new instance of isisCircEntry.  If the SET
             fails with the code 'inconsistentValue', then
             the process must be repeated; If the SET succeeds,
             then the object is incremented, and the new
             isisCircuit is created according to the manager's
             directions."
    ::= { isisSysEntry 18 }

    isisSysL2toL1Leaking OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "If true, allow the router to leak L2 routes into L1."
        DEFVAL { false }
    ::= { isisSysEntry 19 }

    isisSysSetOverload OBJECT-TYPE
        SYNTAX INTEGER
            {
                setL1Overload(1),
                setL2Overload(2),
                setL1L2Overload(3),
                overloadClear(4)
            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Administratively set the overload bit for each level.
             The overload bit will continue to be set if the
             implementation runs out of memory, independent of
             this variable"
        DEFVAL {overloadClear }
    ::= { isisSysEntry 20 }

    isisSysL1MetricStyle OBJECT-TYPE
        SYNTAX MetricStyle
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Which style of Metric do we generate in our L1 LSPs?



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             This object follows the replaceOnlyWhileDisabled
             behavior."
        DEFVAL { narrow }
    ::= { isisSysEntry 21 }

    isisSysL1SPFConsiders OBJECT-TYPE
        SYNTAX MetricStyle
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Which style of Metric do we consider in our
             L1 SPF computation?"
        DEFVAL { narrow }
    ::= { isisSysEntry 22 }

    isisSysL2MetricStyle OBJECT-TYPE
        SYNTAX MetricStyle
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Which style of Metric do we generate in our L2 LSPs?
             This object follows the replaceOnlyWhileDisabled
             behavior."
        DEFVAL { narrow }
    ::= { isisSysEntry 23 }

    isisSysL2SPFConsiders OBJECT-TYPE
        SYNTAX MetricStyle
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Which style of Metric do we consider in our
             SPF computation?"
        DEFVAL { narrow }
    ::= { isisSysEntry 24 }

    isisSysTEEnabled OBJECT-TYPE
        SYNTAX ISLevel
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Do we do Traffic Engineering?  At which level?"
        DEFVAL { none }
    ::= { isisSysEntry 25 }

    isisSysMaxAge OBJECT-TYPE
        SYNTAX Integer32 (1200..65535)
        UNITS "seconds"



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        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Value to place in RemainingLifeTime field of
             the LSPs we generate.
             This is should be at least 300 seconds greater than
             isisSysMaxLSPGenInt."
        DEFVAL { 1200 }
    ::= { isisSysEntry 26 }

    isisSysReceiveLSPBufferSize OBJECT-TYPE
        SYNTAX Integer32 (1492..65535)
        UNITS "bytes"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Size of the largest Buffer we can store.
             This should be at least as big as the maximum
             of isisSysOrigL2LSPBuffSize and isisSysOrigL1LSPBuffSize."
        DEFVAL { 1492 }
    ::= { isisSysEntry 27 }

    isisSysExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The state of the ISIS router.  Turning this to
             state 'destroy' forces the router to forget all
             the current configuration.  Setting the state to
             'notInService' stops protocol processing, but
             retains the configuration."
        DEFVAL { active }
    ::= { isisSysEntry 28 }

---
-- The Level 1 Manual Area Address Table
-- contains the set of area addresses manually configured
-- for each instance of the Integrated IS-IS protocol.
-- At least one row in which the value of isisManAreaAddrExistState
-- is active must be present for each active instance of
-- the protocol The maximum number of rows in this table for
-- each instance of the protocol for which the object
-- isisManAreaAddrExistState has the value active is the value
-- of isisSysMaxAreaAddresses.
--     An attempt to create more than isisSysMaxAreaAddresses
-- rows of isisManAreaAddrEntry with state 'active' in one
-- instance of the IS-IS protocol should return



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-- inconsistentValue.

    isisManAreaAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisManAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The set of manual area addresses configured on this
             Intermediate System."
        REFERENCE "{ISIS.aoi manualAreaAddresses (10)}"
    ::= { isisSystem 2 }

    isisManAreaAddrEntry OBJECT-TYPE
        SYNTAX IsisManAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one area address manually configured
             on this system"
        INDEX { isisSysInstance,
                isisManAreaAddr }
    ::= { isisManAreaAddrTable 1 }

    IsisManAreaAddrEntry ::=
        SEQUENCE {
            isisManAreaAddr
                OSINSAddress,
            isisManAreaAddrExistState
                RowStatus
            }

    isisManAreaAddr OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "A manually configured area address for this system. This
             object follows the index behavior.

             Note: an index for the entry {1, {49.0001} active} in
             this table would be the ordered pair
             (1, (0x03 0x49 0x00 0x01)), as the length of an Octet
             string is part of the OID."

    ::= { isisManAreaAddrEntry 1 }

    isisManAreaAddrExistState OBJECT-TYPE
        SYNTAX RowStatus



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        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The state of the isisManAreaAddrEntry. This object
             follows the Row Status behavior. If the isisSysAdminState
             for this instance of the IS-IS protocol is 'on', and an
             attempt is made to set this object to the value 'destroy'
             or 'notInService' when this is the only isisManAreaAddrEntry
             in state 'active' for this instance of the IS-IS protocol
             should return  inconsistentValue."

        DEFVAL { active }
    ::= { isisManAreaAddrEntry 2 }

-- The Level 1 Area Address Table

-- The Level 1 Area Address Table contains the
-- union of the sets of relevant area addresses reported
-- in all Level 1 LSPs received by this Intermediate System.

    isisAreaAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The union of the sets of area addresses reported in all
             Level 1 LSPs with segment number zero received by this
             instance of the protocol from Intermediate Systems which
             are reachable via Level 1 routing."
        REFERENCE "{ISIS.aoi areaAddresses (18)}"
    ::= { isisSystem 3 }

    isisAreaAddrEntry OBJECT-TYPE
        SYNTAX IsisAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one area address reported in a
             Level 1 LSP received by this instance of the IS-IS
             protocol."
        INDEX { isisSysInstance,
                isisAreaAddr }
    ::= { isisAreaAddrTable 1 }

    IsisAreaAddrEntry ::=
        SEQUENCE {
            isisAreaAddr
                OSINSAddress



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            }

    isisAreaAddr OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "An area address reported in a Level 1 LSP received by
             this instance of the IS-IS protocol."
    ::= { isisAreaAddrEntry 1 }

-- The System Integrated Group

-- The System Integrated Group is present if the system
-- supports Integrated ISIS at Level 1.

-- The System Protocol Supported Table

-- The System Protocol Supported Table contains the manually
-- configured set of protocols supported by each
-- instance of the Integrated ISIS protocol.
--

    isisSysProtSuppTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisSysProtSuppEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "This table contains the manually configured set of
             protocols supported by each instance of the Integrated
             ISIS protocol."
    ::= { isisSystem 4 }

    isisSysProtSuppEntry OBJECT-TYPE
        SYNTAX IsisSysProtSuppEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one protocol supported by an
             instance of the Integrated ISIS protocol."

        INDEX {  isisSysInstance,
                 isisSysProtSuppProtocol }

    ::= { isisSysProtSuppTable 1 }

    IsisSysProtSuppEntry ::=
        SEQUENCE {



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            isisSysProtSuppProtocol
                SupportedProtocol,
            isisSysProtSuppExistState
                RowStatus
            }

    isisSysProtSuppProtocol OBJECT-TYPE
        SYNTAX SupportedProtocol
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "One supported protocol. This object follows the index
             behavior."
    ::= { isisSysProtSuppEntry 1 }

    isisSysProtSuppExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The state of the isisSysProtSuppEntry. This object
             follows the RowStatus behavior."
        DEFVAL { active }
    ::= { isisSysProtSuppEntry 2 }


-- The Summary Address Table

-- The Summary Address Table contains the set of summary
-- addresses manually configured for each instance of
-- IP Integrated ISIS on the system.

    isisSummAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisSummAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The set of IP summary addresses to use in forming
             summary TLVs originated by this Intermediate System.

             An administrator may use a summary address to combine
             and modify IP Reachability announcements.  If the
             Intermediate system can reach any subset of the summary
             address, the summary address will be announced instead,
             at the configured metric."
    ::= { isisSystem 5 }

    isisSummAddrEntry OBJECT-TYPE



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        SYNTAX IsisSummAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one IP summary address."

        INDEX { isisSysInstance,
                isisSummAddressType,
                isisSummAddress,
                isisSummAddrPrefixLen }
    ::= { isisSummAddrTable 1 }

    IsisSummAddrEntry ::=
        SEQUENCE {
            isisSummAddressType
                InetAddressType,
            isisSummAddress
                InetAddress,
            isisSummAddrPrefixLen
                InetAddressPrefixLength,
            isisSummAddrExistState
                RowStatus,
            isisSummAddrMetric
                DefaultMetric,
            isisSummAddrFullMetric
                FullMetric
        }

    isisSummAddressType OBJECT-TYPE
        SYNTAX InetAddressType
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The Type of IP address for this summary address.
             This object follows the index behavior."
    ::= { isisSummAddrEntry 1 }

    isisSummAddress OBJECT-TYPE
        SYNTAX InetAddress (SIZE(4|16))
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The IP Address value for this summary address.
             This object follows the index behavior."
    ::= { isisSummAddrEntry 2 }

    isisSummAddrPrefixLen OBJECT-TYPE
        SYNTAX InetAddressPrefixLength (0..128)



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        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The Length of the IP NetMask for this summary address."
    ::= { isisSummAddrEntry 3 }

    isisSummAddrExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The existence state of this summary address. This object
             follows the row status behavior."
        DEFVAL { active }
    ::= { isisSummAddrEntry 4 }

    isisSummAddrMetric OBJECT-TYPE
        SYNTAX DefaultMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The metric value to announce this summary
             address with in LSPs generated by this system."
        DEFVAL { 20 }
    ::= { isisSummAddrEntry 5 }

    isisSummAddrFullMetric OBJECT-TYPE
        SYNTAX FullMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The wide metric value to announce this summary
             address with in LSPs generated by this system."
        DEFVAL { 20 }
    ::= { isisSummAddrEntry 6 }

-- The Redistribution table defines addresses that should be leaked from
-- L2 to L1 if isisSysL2toL1Leaking is enabled.

    isisRedistributeAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisRedistributeAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "This table provides criteria to decide if a route should
             be leaked from L2 to L1 when Domain Wide Prefix leaking is
             enabled.




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             Addresses that match the summary mask in the table will
             be announced at L1 by routers when isisSysL2toL1Leaking
             is enabled.  Routes that fall into the ranges specified
             are are announced as is, without being summarized."
    ::= { isisSystem 6 }

    isisRedistributeAddrEntry OBJECT-TYPE
        SYNTAX IsisRedistributeAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one IP summary address to
             manage leaking L2 addresses into L1."
        INDEX { isisSysInstance,
                isisRedistributeAddrType,
                isisRedistributeAddrAddress,
                isisRedistributeAddrPrefixLen }
    ::= { isisRedistributeAddrTable 1 }

    IsisRedistributeAddrEntry ::=
        SEQUENCE {
            isisRedistributeAddrType
                InetAddressType,
            isisRedistributeAddrAddress
                InetAddress,
            isisRedistributeAddrPrefixLen
                InetAddressPrefixLength,
            isisRedistributeAddrExistState
                RowStatus
        }

    isisRedistributeAddrType OBJECT-TYPE
        SYNTAX InetAddressType
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The Type of IP address for this summary address.
             This object follows the index behavior."
    ::= { isisRedistributeAddrEntry 1 }

    isisRedistributeAddrAddress OBJECT-TYPE
        SYNTAX InetAddress (SIZE(4|16))
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The IP Address value for this summary address.
             This object follows the index behavior."
    ::= { isisRedistributeAddrEntry 2 }



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    isisRedistributeAddrPrefixLen OBJECT-TYPE
        SYNTAX InetAddressPrefixLength (0..128)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The Length of the IP NetMask for this summary address."
    ::= { isisRedistributeAddrEntry 3 }

    isisRedistributeAddrExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The existence state of this summary address. This object
             follows the row status behavior."
        DEFVAL { active }
    ::= { isisRedistributeAddrEntry 4 }

-- The Circuit Group

-- The Circuit Group is current

-- The Circuit Table
-- Each broadcast or point-to-point interface on the system
-- corresponds to one entry in the Circuit table. There may be
-- many X.25 DA circuit entries in the Circuit table for an
-- X.25 interface.

    isisCircTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisCircEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The table of circuits used by each instance of
             Integrated IS-IS on this system."
    ::= { isisCirc 1 }

    isisCircEntry OBJECT-TYPE
        SYNTAX IsisCircEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An isisCircEntry exists for each circuit used by
             Integrated IS-IS on this system."
        INDEX { isisSysInstance,
                isisCircIndex }
    ::= { isisCircTable 1 }




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    IsisCircEntry ::=
        SEQUENCE {
            isisCircIndex
                Integer32,
            isisCircIfIndex
                Integer32,
            isisCircIfSubIndex
                Integer32,
            isisCircAdminState
                AdminState,
            isisCircExistState
                RowStatus,
            isisCircType
                INTEGER,
            isisCircExtDomain
                TruthValue,
            isisCircLevel
                INTEGER,
            isisCircPassiveCircuit
                TruthValue,
            isisCircMeshGroupEnabled
                INTEGER,
            isisCircMeshGroup
                Integer32,
            isisCircSmallHellos
                TruthValue,
            isisCircUpTime
                UpTime
        }

    isisCircIndex OBJECT-TYPE
        SYNTAX Integer32 (1..2000000000)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The identifier of this circuit, unique within the
             instance of the IS-IS protocol. This object follows
             the index behavior.  This is for SNMP Indexing
             purposes only and need not have any relation to
             any protocol value."
    ::= { isisCircEntry 1 }

    isisCircIfIndex OBJECT-TYPE
        SYNTAX Integer32
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The value of ifIndex for the interface to which this



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             circuit corresponds.   This object cannot be modified
             after creation"
    ::= { isisCircEntry 2 }

    isisCircIfSubIndex OBJECT-TYPE
        SYNTAX Integer32
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "A specifier for the part of the interface ifIndex to which
             this circuit corresponds, such as a DLCI or VPI/VCI.
             This object cannot be modified after creation"
    ::= { isisCircEntry 3 }

    isisCircAdminState OBJECT-TYPE
        SYNTAX AdminState
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The administrative state of the circuit. This
             object follows the AdminState behavior."
        DEFVAL { off }
    ::= { isisCircEntry 4 }

    isisCircExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The existence state of this circuit. This object follows
             the Row Status behavior.  Setting the state to 'notInService'
             halts the generation and processing of IS-IS protocol PDUs
             on this circuit.  Setting the state to destroy will also
             erase any configuration associated with the circuit."
        DEFVAL { active }
    ::= { isisCircEntry 5 }

    isisCircType OBJECT-TYPE
        SYNTAX INTEGER
            {
                broadcast(1),
                ptToPt(2),
                staticIn(3),
                staticOut(4),
                dA(5)
            }
        MAX-ACCESS read-create
        STATUS current



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        DESCRIPTION
            "The type of the circuit. This object follows the
             replaceOnlyWhileDisabled behavior. The type specified
             must be compatible with the type of the interface defined
             by the value of isisCircIfIndex."
        REFERENCE "{ISIS.aoi type (33)}"
    ::= { isisCircEntry 6 }

    isisCircExtDomain OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "If true, suppress normal transmission of and
             interpretation of Intra-domain ISIS PDUs on this
             circuit."
        REFERENCE "{ISIS.aoi externalDomain (46)}"
        DEFVAL { false }
    ::= { isisCircEntry 7 }

    isisCircLevel OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1(1),
                level2(2),
                level1L2(3)
            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Indicates which type of packets will be sent and
             accepted on this circuit. The values used will be
             modified by the settings of isisSysType. This
             object follows the replaceOnlyWhileDisabled behavior."
        DEFVAL { level1L2 }
    ::= { isisCircEntry 8 }

    isisCircPassiveCircuit OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Should we include this interface in LSPs, even if
             it is not running the ISIS Protocol?"
        REFERENCE "{}"
        DEFVAL { false }
    ::= { isisCircEntry 9 }




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    isisCircMeshGroupEnabled OBJECT-TYPE
        SYNTAX INTEGER
            {
                inactive(1),
                blocked(2),
                set(3)
            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Is this port a member of a mesh group, or blocked?
             Circuits in the same mesh group act as a virtual
             multiaccess network.  LSPs seen on one circuit in
             a mesh group will not be flooded to another circuit
             in the same mesh group."
        REFERENCE "{}"
        DEFVAL { inactive }
    ::= { isisCircEntry 10 }

    isisCircMeshGroup OBJECT-TYPE
        SYNTAX Integer32 (1..2000000000)
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Circuits in the same mesh group act as a virtual
             multiaccess network.  LSPs seen on one circuit in
             a mesh group will not be flooded to another circuit
             in the same mesh group.  If isisCircMeshGroupEnabled
             is inactive, this value is ignored."
        REFERENCE "{}"
        DEFVAL { 1 }
    ::= { isisCircEntry 11 }

    isisCircSmallHellos OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Can we send unpadded hellos on LAN circuits?  False
             means LAN Hellos must be padded.
             Implementations should allow the administrator to read
             this value.  An implementation need not be able to
             support unpadded hellos to be conformant."
         DEFVAL { false }
    ::= { isisCircEntry 12 }

    isisCircUpTime OBJECT-TYPE
        SYNTAX UpTime



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        UNITS "seconds"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "If the circuit is up, the amount of time in seconds
             since this circuit entered state 'up'.  If the circuit
             is not up, the number of seconds since the circuit was
             up, or since the system started, if the circuit has
             never been up.

             Note: This can be implemented as start time less
             the current time."
    ::= { isisCircEntry 13 }

-- The Circuit Level Table
-- This table captures level-specific information about a circuit

    isisCircLevelTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisCircLevelEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Level specific information about circuits used by IS-IS"
    ::= { isisCircLevelValues 1 }

    isisCircLevelEntry OBJECT-TYPE
        SYNTAX IsisCircLevelEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An isisCircLevelEntry exists for each level on
             each circuit used by Integrated IS-IS on this system."
        INDEX { isisSysInstance,
                isisCircIndex,
                isisCircLevelIndex }
    ::= { isisCircLevelTable 1 }

    IsisCircLevelEntry ::=
        SEQUENCE {
            isisCircLevelIndex
                INTEGER,
            isisCircLevelMetric
                DefaultMetric,
            isisCircLevelWideMetric
                WideMetric,
            isisCircLevelISPriority
                ISPriority,
            isisCircLevelIDOctet



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                Integer32,
            isisCircLevelID
                CircuitID,
            isisCircLevelDesIS
                OCTET STRING,
            isisCircLevelHelloMultiplier
                Integer32,
            isisCircLevelHelloTimer
                Integer32,
            isisCircLevelDRHelloTimer
                Integer32,
            isisCircLevelLSPThrottle
                Integer32,
            isisCircLevelMinLSPRetransInt
                Integer32,
            isisCircLevelCSNPInterval
                Integer32,
            isisCircLevelPartSNPInterval
                Integer32
        }

    isisCircLevelIndex OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1IS (1),
                level2IS (2)
            }
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level that this entry describes."
    ::= { isisCircLevelEntry 1 }

    isisCircLevelMetric OBJECT-TYPE
        SYNTAX DefaultMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The metric value of this circuit for this level."
        REFERENCE "{ISIS.aoi l1DefaultMetric (35)}"
        DEFVAL { 10 }
    ::= { isisCircLevelEntry 2 }

    isisCircLevelWideMetric OBJECT-TYPE
        SYNTAX WideMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION



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            "The wide metric value of this circuit for this level."
        DEFVAL { 10 }
    ::= { isisCircLevelEntry 3 }

    isisCircLevelISPriority OBJECT-TYPE
        SYNTAX ISPriority
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The priority for becoming LAN Designated
             Intermediate System at this level."
        REFERENCE "{ISIS.aoi l2IntermediateSystemPriority (73)}"
        DEFVAL { 64 }
    ::= { isisCircLevelEntry 4 }

    isisCircLevelIDOctet OBJECT-TYPE
        SYNTAX Integer32(0..255)
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "A one byte identifier that can be used in protocol packets
             to identify a circuit.  Values of isisCircLevelIDOctet
             do not need to be unique.  They are only required to differ
             on LANs where the Intermediate System is the Designated
             Intermediate System."
    ::= { isisCircLevelEntry 5 }

    isisCircLevelID OBJECT-TYPE
        SYNTAX CircuitID
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The ID of the circuit allocated during initialization.
             If no value has been negotiated (either because the
             adjacency is to an End System, or because initialization
             has not yet successfully completed), this object has the
             value which would be proposed for this circuit (i.e. the
             concatenation of the local system ID and the one byte
             isisCircLevelIDOctet for this circuit."
        REFERENCE "{ISIS.aoi ptPtCircuitID (51)}"
    ::= { isisCircLevelEntry 6 }

    isisCircLevelDesIS OBJECT-TYPE
        SYNTAX OCTET STRING (SIZE(0..7))
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The ID of the LAN Designated Intermediate System



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             on this circuit at this level. If, for any reason,
             this system is not partaking in the relevant
             Designated Intermediate System election process,
             then the value returned is the zero length OCTET STRING."
        REFERENCE "{ISIS.aoi l2DesignatedIntermediateSystem (75)}"
    ::= { isisCircLevelEntry 7 }

    isisCircLevelHelloMultiplier OBJECT-TYPE
        SYNTAX Integer32 (2..100)
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "This value is multiplied by the corresponding HelloTimer
             and the result in seconds (rounded up) is used as the
             holding time in transmitted hellos, to be used by receivers
             of hello packets from this IS"
        REFERENCE "{ISIS.aoi iSISHelloTimer (45)}"
        DEFVAL { 10 }
    ::= { isisCircLevelEntry 8 }

    isisCircLevelHelloTimer OBJECT-TYPE
        SYNTAX Integer32 (10..600000)
        UNITS "milliseconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Maximum period, in milliseconds, between IIH PDUs
             on multiaccess networks at this level for LANs.
             The value at level 1 is used as the period between
             Hellos on L1L2 point to point circuits.  Setting
             this value at level 2 on an L1L2 point to point
             circuit will result in an error of InconsistentValue.

             This object follows the resettingTimer behavior."
        REFERENCE "{ISIS.aoi iSISHelloTimer (45)}"
        DEFVAL { 3000 }
    ::= { isisCircLevelEntry 9 }

    isisCircLevelDRHelloTimer OBJECT-TYPE
        SYNTAX Integer32 (10..120000)
        UNITS "milliseconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Period, in milliseconds, between Hello PDUs on
             multiaccess networks when this IS is the Designated
             Intermediate System.  This object follows the
             resettingTimer behavior."



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        REFERENCE "{ISIS.aoi iSISHelloTimer (45)}"
        DEFVAL { 1000 }
    ::= { isisCircLevelEntry 10 }

    isisCircLevelLSPThrottle OBJECT-TYPE
        SYNTAX Integer32 (1..65535)
        UNITS "milliseconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Minimal interval of time, in milliseconds, between
             transmissions of LSPs on an interface at this level."
        REFERENCE "{ISIS.aoi minimumBroadcastLSPTransmissionInterval (5)}"
        DEFVAL { 10 }
    ::= { isisCircLevelEntry 11 }

    isisCircLevelMinLSPRetransInt OBJECT-TYPE
        SYNTAX Integer32 (1..300)
        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Minimum interval, in seconds, between re-transmission of
             an LSP at this level. This object follows the resettingTimer
             behavior.

             Note that isisCircLevelLSPThrottle controls
             how fast we send back to back LSPs.  This variable
             controls how fast we re-send the same LSP."
        REFERENCE "{ISIS.aoi minimumLSPTransmissionInterval (5)}"
        DEFVAL { 5 }
    ::= { isisCircLevelEntry 12 }

    isisCircLevelCSNPInterval OBJECT-TYPE
        SYNTAX Integer32 (1..600)
        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Interval of time, in seconds, between transmission
             of CSNPs on multiaccess networks if this router is
             the designated router at this level."
        REFERENCE "{}"
        DEFVAL { 10 }
    ::= { isisCircLevelEntry 13 }

    isisCircLevelPartSNPInterval OBJECT-TYPE
        SYNTAX Integer32 (1..120)



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        UNITS "seconds"
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Minimum interval in seconds between sending Partial Sequence
             Number PDUs at this level. This object follows the
             resettingTimer behavior."
        REFERENCE "{ISIS.aoi partialSNPInterval (14)}"
        DEFVAL { 2 }
    ::= { isisCircLevelEntry 14 }

-- isisSystemCounterTable keeps track of system-wide events.

    isisSystemCounterTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisSystemCounterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "System wide counters for one instance of the IS-IS
             protocol on the system."
    ::= { isisCounters 1 }

    isisSystemCounterEntry OBJECT-TYPE
        SYNTAX IsisSystemCounterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "System-wide IS-IS counters."
        INDEX { isisSysInstance,
                isisSysStatLevel }
    ::= { isisSystemCounterTable 1 }

    IsisSystemCounterEntry ::=
        SEQUENCE {
             isisSysStatLevel
                 INTEGER,
             isisSysStatCorrLSPs
                 Counter32,
             isisSysStatAuthTypeFails
                 Counter32,
             isisSysStatAuthFails
                 Counter32,
             isisSysStatLSPDbaseOloads
                 Counter32,
             isisSysStatManAddrDropFromAreas
                 Counter32,
             isisSysStatAttmptToExMaxSeqNums
                 Counter32,



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             isisSysStatSeqNumSkips
                 Counter32,
             isisSysStatOwnLSPPurges
                 Counter32,
             isisSysStatIDFieldLenMismatches
                 Counter32,
             isisSysStatMaxAreaAddrMismatches
                 Counter32,
             isisSysStatPartChanges
                 Counter32
        }

    isisSysStatLevel OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1IS (1),
                level2IS (2)
            }
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level that this entry describes."
    ::= { isisSystemCounterEntry 1 }

    isisSysStatCorrLSPs OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of corrupted in-memory LSPs detected.

             LSPs received from the wire with a bad checksum
             are silently dropped and not counted."
        REFERENCE "{ISIS.aoi corruptedLSPsDetected (19)}"
    ::= { isisSystemCounterEntry 2 }

    isisSysStatAuthTypeFails OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of authentication type mismatches recognized
             by this instance of the protocol."
    ::= { isisSystemCounterEntry 3 }

    isisSysStatAuthFails OBJECT-TYPE



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        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of authentication failures recognized by this
             instance of the protocol."
    ::= { isisSystemCounterEntry 4 }

    isisSysStatLSPDbaseOloads OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times the LSP L1 database has become
             overloaded."
        REFERENCE "{ISIS.aoi lSPL1DatabaseOverloads (20)}"
    ::= { isisSystemCounterEntry 5 }

    isisSysStatManAddrDropFromAreas OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times a manual address has been dropped from
             the area."
        REFERENCE "{ISIS.aoi manualAddressesDroppedFromArea (21)}"
    ::= { isisSystemCounterEntry 6 }

    isisSysStatAttmptToExMaxSeqNums OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times the IS has attempted to exceed the
             maximum sequence number."
        REFERENCE "{ISIS.aoi attemptsToExceedmaximumSequenceNumber (22)}"
    ::= { isisSystemCounterEntry 7 }

    isisSysStatSeqNumSkips OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times a sequence number skip has occurred."
        REFERENCE "{ISIS.aoi sequenceNumberSkips (23)}"
    ::= { isisSystemCounterEntry 8 }




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    isisSysStatOwnLSPPurges OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times a zero-aged copy of the system's own LSP
             is received from some other node."
        REFERENCE "{ISIS.aoi ownLSPPurges (24)}"
    ::= { isisSystemCounterEntry 9 }

    isisSysStatIDFieldLenMismatches OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times a PDU is received with a different value
             for ID field length to that of the receiving system."
        REFERENCE "{ISIS.aoi iDFieldLengthMismatches (25)}"
    ::= { isisSystemCounterEntry 10 }

    isisSysStatMaxAreaAddrMismatches OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times a PDU is received with a different value
             for MaximumAreaAddresses from that of the receiving
             system."
        REFERENCE "{ISIS.aoi MaximumAreaAddressesMismatches (118)}"
    ::= { isisSystemCounterEntry 11 }

    isisSysStatPartChanges OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Partition changes"
    ::= { isisSystemCounterEntry 12 }

-- isisCircuitCounterTable keeps track of events
-- specific to a circuit and a level

    isisCircuitCounterTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisCircuitCounterEntry
        MAX-ACCESS not-accessible
        STATUS current



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        DESCRIPTION
            "Circuit specific counters for one instance of the IS-IS
             protocol on the system."
    ::= { isisCounters 2 }

    isisCircuitCounterEntry OBJECT-TYPE
        SYNTAX IsisCircuitCounterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An isisCircCountEntry exists for each circuit
             used by Integrated IS-IS on this system."
        INDEX { isisSysInstance,
                isisCircIndex,
                isisCircuitType }
    ::= { isisCircuitCounterTable 1 }

    IsisCircuitCounterEntry ::= SEQUENCE {
          isisCircuitType
              INTEGER,
          isisCircAdjChanges
              Counter32,
          isisCircInitFails
              Counter32,
          isisCircRejAdjs
              Counter32,
          isisCircIDFieldLenMismatches
              Counter32,
          isisCircMaxAreaAddrMismatches
              Counter32,
          isisCircAuthTypeFails
              Counter32,
          isisCircAuthFails
              Counter32,
          isisCircLANDesISChanges
              Counter32
       }

    isisCircuitType OBJECT-TYPE
        SYNTAX INTEGER
            {
                lanlevel1(1),
                lanlevel2(2),
                p2pcircuit(3)
            }
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION



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            "What type of circuit saw these counts?

             The point to point Hello PDU includes
             both L1 and L2, and ISs form a single
             adjacency on point to point links.
             Thus we combine counts on
             point to point links into one group."
    ::= { isisCircuitCounterEntry 1 }

    isisCircAdjChanges OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times an adjacency state change has
             occurred on this circuit."
        REFERENCE "{ISIS.aoi changesInAdjacencyState (40)}"
    ::= { isisCircuitCounterEntry 2 }

    isisCircInitFails OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times initialization of this circuit has
             failed."
        REFERENCE "{ISIS.aoi initializationFailures (41)}"
    ::= { isisCircuitCounterEntry 3 }

    isisCircRejAdjs OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times an adjacency has been rejected on
             this circuit."
        REFERENCE "{ISIS.aoi rejectedAdjacencies (42)}"
    ::= { isisCircuitCounterEntry 4 }

    isisCircIDFieldLenMismatches OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times an IS-IS control PDU with an ID
             field length different to that for this system has been
             received."



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        REFERENCE "{ISIS.aoi iDFieldLengthMismatches (25)}"
    ::= { isisCircuitCounterEntry 5 }

    isisCircMaxAreaAddrMismatches OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times an IS-IS control PDU with a
             max area address field different to that for this
             system has been received."
        REFERENCE "{ISIS.aoi iDFieldLengthMismatches (25)}"
    ::= { isisCircuitCounterEntry 6 }

    isisCircAuthTypeFails OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times an IS-IS control PDU with
             an auth type field different to that for this
             system has been received."
    ::= { isisCircuitCounterEntry 7 }

    isisCircAuthFails OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times an IS-IS control PDU with
             the correct auth type has failed to pass authentication
             validation."
    ::= { isisCircuitCounterEntry 8 }

    isisCircLANDesISChanges OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times the Designated IS has changed
             on this circuit at this level.  If the circuit is
             point to point, this count is zero."
    ::= { isisCircuitCounterEntry 9 }

-- isisPacketCounterTable keeps track of the number of IS-IS
-- control packets sent and received at each level

    isisPacketCounterTable OBJECT-TYPE



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        SYNTAX SEQUENCE OF IsisPacketCounterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Information about IS-IS protocol traffic at one level
             on one circuit in one direction"
    ::= { isisCounters 3 }

    isisPacketCounterEntry OBJECT-TYPE
        SYNTAX IsisPacketCounterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Information about IS-IS protocol traffic at one level
             on one circuit in one direction"
        INDEX { isisSysInstance,
                isisCircIndex,
                isisPacketCountLevel,
                isisPacketCountDirection }
    ::= { isisPacketCounterTable 1 }

    IsisPacketCounterEntry ::=
        SEQUENCE {
            isisPacketCountLevel
                INTEGER,
            isisPacketCountDirection
                INTEGER,
            isisPacketCountHello
                Counter32,
            isisPacketCountLSP
                Counter32,
            isisPacketCountCSNP
                Counter32,
            isisPacketCountPSNP
                Counter32
    }

    isisPacketCountLevel OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1(1),
                level2(2)
            }
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level at which these PDU counts have been collected."
    ::= { isisPacketCounterEntry 1 }



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    isisPacketCountDirection OBJECT-TYPE
        SYNTAX INTEGER
            {
                sending(1),
                receiving(2)
            }
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Were we sending or receiving these PDUs?"
    ::= { isisPacketCounterEntry 2 }

    isisPacketCountHello OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of IS-IS Hello PDUs seen in this
             direction at this level.

             Point-to-Point Hello PDUs are counted at
             Level 1 if the value of their Circuit Type
             field is 1, and are counted at Level 2 otherwise."
        REFERENCE "{ISIS.aoi iSISControlPDUsSent (43)}"
    ::= { isisPacketCounterEntry 3 }

    isisPacketCountLSP OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of IS-IS LSPs seen in this
             direction at this level."
        REFERENCE "{ISIS.aoi iSISControlPDUsSent (43)}"
    ::= { isisPacketCounterEntry 4 }

    isisPacketCountCSNP OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of IS-IS CSNPs seen in this
             direction at this level."
        REFERENCE "{ISIS.aoi iSISControlPDUsSent (43)}"
    ::= { isisPacketCounterEntry 5 }



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    isisPacketCountPSNP OBJECT-TYPE
        SYNTAX Counter32
        UNITS "frames"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of IS-IS PSNPs seen in this
             direction at this level."
        REFERENCE "{ISIS.aoi iSISControlPDUsSent (43)}"
    ::= { isisPacketCounterEntry 6 }

-- The Circuit IS Group
--
-- The Circuit IS Group is present if the system supports the
-- IS functions of the ISO 9542 protocol.
-- The Circuit IS Table
--
-- This table is not implemented - jdp



-- The IS Adjacency Group
--
-- The IS Adjacency Group is current and contains information
-- about adjacencies to routers maintained by the Integrated
-- IS-IS protocol
--
-- The IS Adjacency Table
--
-- Each adjacency to an IS corresponds to one entry in this
-- table.

    isisISAdjTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisISAdjEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The table of adjacencies to Intermediate Systems."
    ::= { isisISAdj 1 }

    isisISAdjEntry OBJECT-TYPE
        SYNTAX IsisISAdjEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry corresponds to one adjacency to an
             Intermediate System on this system."
        INDEX { isisSysInstance,



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                isisCircIndex,
                isisISAdjIndex }
    ::= { isisISAdjTable 1 }

    IsisISAdjEntry ::=
        SEQUENCE {
            isisISAdjIndex
                Integer32,
            isisISAdjState
                INTEGER,
            isisISAdjNeighSNPAAddress
                OSINSAddress,
            isisISAdjNeighSysType
                INTEGER,
            isisISAdjNeighSysID
                OCTET STRING,
            isisISAdjUsage
                INTEGER,
            isisISAdjHoldTimer
                Integer32,
            isisISAdjNeighPriority
                ISPriority,
            isisISAdjUpTime
                UpTime
      }

    isisISAdjIndex OBJECT-TYPE
        SYNTAX Integer32 (1..2000000000)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "A unique value identifying the IS adjacency from all
             other such adjacencies on this circuit. This value is
             assigned by the system when the adjacency is created
             automatically."
    ::= { isisISAdjEntry 1 }

    isisISAdjState OBJECT-TYPE
        SYNTAX INTEGER
            {
                 up (0),
                 initializing (1),
                 down (2),
                 failed (3)
            }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION



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            "The state of the adjacency"
        REFERENCE "{ISIS.aoi adjacencyState (78)}"
    ::= { isisISAdjEntry 2 }

    isisISAdjNeighSNPAAddress OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The SNPA address of the neighboring system."
        REFERENCE "{ISIS.aoi neighbourSNPAAddress (79)}"
    ::= { isisISAdjEntry 3 }

    isisISAdjNeighSysType OBJECT-TYPE
        SYNTAX INTEGER
            {
                l1IntermediateSystem(1),
                l2IntermediateSystem(2),
                l1L2IntermediateSystem(3),
                unknown(4)
            }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The type of the neighboring system."
        REFERENCE "{ISIS.aoi neighbourSystemType (80)}"
    ::= { isisISAdjEntry 4 }

    isisISAdjNeighSysID OBJECT-TYPE
        SYNTAX OCTET STRING (SIZE(0..12))
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The system ID and 4 byte circuit ID of the
             neighboring Intermediate System set from
             the source ID field of the Three-Way-Handshake
             information from the neighbor's IIH PDUs."
        REFERENCE "{ISIS.aoi neighbourSystemIds (83)}"
    ::= { isisISAdjEntry 5 }

    isisISAdjUsage OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1(1),
                level2(2),
                level1and2(3)
            }
        MAX-ACCESS read-only



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        STATUS current
        DESCRIPTION
            "An adjacency of type level1 is used for level 1
             traffic only. An adjacency of type level2 is used
             for level 2 traffic only. An adjacency of type level1and2
             is used for both level 1 and level 2 traffic. There
             may be two adjacencies (of types level1 and level2)
             between the same pair of Intermediate Systems."
        REFERENCE "{ISIS.aoi adjacencyUsage (82)}"
    ::= { isisISAdjEntry 6 }

    isisISAdjHoldTimer OBJECT-TYPE
        SYNTAX Integer32 (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The holding time in seconds for this adjacency.
             This value is based on received IIH PDUs and
             the elapsed time since receipt."
        REFERENCE "{ISIS.aoi holdingTimer (85)}"
    ::= { isisISAdjEntry 7 }

    isisISAdjNeighPriority OBJECT-TYPE
        SYNTAX ISPriority
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Priority of the neighboring Intermediate System for
             becoming the Designated Intermediate System."
        REFERENCE "{ISIS.aoi lANPriority (86)}"
    ::= { isisISAdjEntry 8 }

    isisISAdjUpTime OBJECT-TYPE
        SYNTAX UpTime
        UNITS "seconds"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "If the adjacency is up, the amount of time in seconds
             since this adjacency entered state 'up'.  If the adjacency
             is not up, the number of seconds since the adjacency was
             up, or since the system started, if the adjacency has
             never been up.

             Note: This can be implemented as start time less
             the current time."
    ::= { isisISAdjEntry 9 }



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-- The IS Adjacency Area Address Table

-- The IS Adjacency Area Address Table contains the set of
-- Area Addresses of neighboring
-- Intermediate Systems as reported in IIH PDUs.

    isisISAdjAreaAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisISAdjAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "This table contains the set of Area Addresses of
             neighboring Intermediate Systems as reported in received
             IIH PDUs."
        REFERENCE "{ISIS.aoi areaAddressesOfNeighbour (84)}"
    ::= { isisISAdj 2 }

    isisISAdjAreaAddrEntry OBJECT-TYPE
        SYNTAX IsisISAdjAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one Area Address reported by a
             neighboring Intermediate System in its IIH PDUs."
        INDEX { isisSysInstance,
                isisCircIndex,
                isisISAdjIndex,
                isisISAdjAreaAddrIndex }
    ::= { isisISAdjAreaAddrTable 1 }

    IsisISAdjAreaAddrEntry ::=
        SEQUENCE {
            isisISAdjAreaAddrIndex
                Integer32,
            isisISAdjAreaAddress
                OSINSAddress
            }

    isisISAdjAreaAddrIndex OBJECT-TYPE
        SYNTAX Integer32 (1..2000000000)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An index for the areas associated with one neighbor.
             This provides a simpler way to walk the table."
    ::= { isisISAdjAreaAddrEntry 1 }

    isisISAdjAreaAddress OBJECT-TYPE



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        SYNTAX OSINSAddress
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "One Area Address as reported in IIH PDUs received from
             the neighbor."
    ::= { isisISAdjAreaAddrEntry 2 }

-- The IS Adjacency IP Group

-- The IS Adjacency IP Group is present if the system supports
-- IP Integrated IS-IS

-- The IS Adjacency IP Address Table

-- The IS Adjacency IP Address Table contains the
-- set of IP Addresses of neighboring Intermediate Systems
-- as reported in received IIH PDUs.

    isisISAdjIPAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisISAdjIPAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "This table contains the set of IP Addresses of
             neighboring Intermediate Systems as reported in received
             IIH PDUs."
    ::= { isisISAdj 3 }

    isisISAdjIPAddrEntry OBJECT-TYPE
        SYNTAX IsisISAdjIPAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one IP Address reported by a
             neighboring Intermediate System in its IIH PDUs."
        INDEX { isisSysInstance,
                isisCircIndex,
                isisISAdjIndex,
                isisISAdjIPAddrIndex
                }
    ::= { isisISAdjIPAddrTable 1 }

    IsisISAdjIPAddrEntry ::=
        SEQUENCE {
            isisISAdjIPAddrIndex
                Integer32,
            isisISAdjIPAddressType



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                 InetAddressType,
            isisISAdjIPAddress
                InetAddress
        }

    isisISAdjIPAddrIndex OBJECT-TYPE
        SYNTAX Integer32 (1..2000000000)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An index to this table which identifies the IP addresss
             to which this entry belongs."
    ::= { isisISAdjIPAddrEntry 1 }

    isisISAdjIPAddressType OBJECT-TYPE
        SYNTAX InetAddressType
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The type of one IP Address as reported in IIH PDUs
             received from the neighbor."
    ::= { isisISAdjIPAddrEntry 2 }

    isisISAdjIPAddress OBJECT-TYPE
        SYNTAX InetAddress (SIZE(4|16))
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "One IP Address as reported in IIH PDUs received from the
             neighbor."
    ::= { isisISAdjIPAddrEntry 3 }

-- The IS Adjacency Integrated Group
--
-- The IS Adjacency Integrated Group is present if the system
-- supports Integrated ISIS.
--
--
-- The IS Adjacency Protocol Supported Table
--
-- The IS Adjacency Protocol Supported Table contains the set of
-- protocols supported by neighboring
-- Intermediate Systems as reported in received IIH PDUs.
--
    isisISAdjProtSuppTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisISAdjProtSuppEntry
        MAX-ACCESS not-accessible
        STATUS current



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        DESCRIPTION
            "This table contains the set of protocols supported by
             neighboring Intermediate Systems as reported in received
             IIH PDUs."
    ::= { isisISAdj 4 }

    isisISAdjProtSuppEntry OBJECT-TYPE
        SYNTAX IsisISAdjProtSuppEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one protocol supported by a
             neighboring Intermediate System as reported in its IIH
             PDUs."
        INDEX {  isisSysInstance,
            isisCircIndex,
            isisISAdjIndex,
            isisISAdjProtSuppProtocol }
    ::= { isisISAdjProtSuppTable 1 }

    IsisISAdjProtSuppEntry ::=
        SEQUENCE {
            isisISAdjProtSuppProtocol
                SupportedProtocol
        }

    isisISAdjProtSuppProtocol OBJECT-TYPE
        SYNTAX SupportedProtocol
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "One supported protocol as reported in IIH PDUs received
             from the neighbor."
    ::= { isisISAdjProtSuppEntry 1 }
--
--
-- The ES Adjacency Group
--
-- The ES Adjacency Group is present if the system supports
-- reception of ES Hellos
-- The ES Adjacency Table
--
-- This table is not implemented - jdp
--
--
-- The Reachable Address Group
--
-- The Reachable Address Group is optional.



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-- The Reachable Address Table
-- Each entry records information about a reachable address
-- (NSAP or address prefix) manually configured on the system
-- or learned through another protocol.

    isisRATable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisRAEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The table of Reachable Addresses to NSAPs or Address
             Prefixes."
    ::= { isisReachAddr 1 }

    isisRAEntry OBJECT-TYPE
        SYNTAX IsisRAEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry defines a Reachable Address to a NSAP or
             Address Prefix."
        INDEX { isisSysInstance,
                isisCircIndex,
                isisRAIndex }
    ::= { isisRATable 1 }

    IsisRAEntry ::=
        SEQUENCE {
            isisRAIndex
                Integer32,
            isisRAExistState
                RowStatus,
            isisRAAdminState
                AdminState,
            isisRAAddrPrefix
                OSINSAddress,
            isisRAMapType
                INTEGER,
            isisRAMetric
                DefaultMetric,
            isisRAFullMetric
                FullMetric,
            isisRAMetricType
                MetricType,
            isisRASNPAAddress
                OSINSAddress,
            isisRASNPAMask
                OSINSAddress,



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            isisRASNPAPrefix
                OSINSAddress,
            isisRAType
                INTEGER
        }

    isisRAIndex OBJECT-TYPE
        SYNTAX Integer32 (1..2000000000)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The identifier for this isisRAEntry. This value must be
             unique amongst all Reachable Addresses on the same parent
             Circuit. This object follows the index and ManualOrAutomatic
             behaviors."
    ::= { isisRAEntry 1 }

    isisRAExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The existence state of this Reachable Address. This
             object follows the ManualOrAutomatic behaviors."
        DEFVAL { active }
    ::= { isisRAEntry 2 }

    isisRAAdminState OBJECT-TYPE
        SYNTAX AdminState
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The administrative state of the Reachable Address. This
             object follows the AdminState and ManualOrAutomatic
             behaviors."
        DEFVAL { off }
    ::= { isisRAEntry 3 }

    isisRAAddrPrefix OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The destination of this Reachable Address. This is an
             Address Prefix. This object follows the
             replaceOnlyWhileDisabled and ManualOrAutomatic
             behaviors."
        REFERENCE "{ISIS.aoi addressPrefix (98)}"



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    ::= { isisRAEntry 4 }

    isisRAMapType OBJECT-TYPE
        SYNTAX INTEGER
            {
                none (1),
                explicit (2),
                extractIDI (3),
                extractDSP (4)
            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The type of mapping to be employed to ascertain the SNPA
             Address which should be used in forwarding PDUs for this
             Reachable Address prefix. This object follows the
             ManualOrAutomatic behavior. The following values of
             mapping type are defined:

                 none: The mapping is null because the neighbor SNPA is
                       implicit by nature of the subnetwork (e.g. a
                       point-to-point linkage).

                 explicit: The subnetwork addresses in the object
                       isisRASNPAAddress is to be used.

                 extractIDI: The SNPA is embedded in the IDI of
                       the destination NSAP Address. The mapping
                       algorithm extracts the SNPA to be used
                       according to the format and encoding rules of
                       ISO8473/Add2. This SNPA extraction algorithm can
                       be used in conjunction with Reachable Address
                       prefixes from the X.121, F.69, E.163 and E.164
                       addressing subdomains.

                 extractDSP: All, or a suffix, of the SNPA is embedded
                       in the DSP of the destination address. This SNPA
                       extraction algorithm extracts the embedded
                       subnetwork addressing information by performing a
                       logical AND of the isisRASNPAMask object value with
                       the destination address. The part of the SNPA
                       extracted from the destination NSAP is appended to
                       the isisRASNPAPrefix object value to form the next
                       hop subnetwork addressing information."

        REFERENCE "{ISO10589-ISIS.aoi mappingType (107)}"
    ::= { isisRAEntry 5 }




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    isisRAMetric OBJECT-TYPE
        SYNTAX DefaultMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The metric value for reaching the specified
             prefix over this circuit. This object follows the
             ManualOrAutomatic behavior."
        REFERENCE "{ISIS.aoi DefaultMetric (99)}"
        DEFVAL { 20 }
    ::= { isisRAEntry 6 }

    isisRAFullMetric OBJECT-TYPE
        SYNTAX FullMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The wide metric metric value for reaching the
             specified prefix over this circuit. This object
             follows the ManualOrAutomatic behavior."
        REFERENCE "{ISIS.aoi DefaultMetric (99)}"
        DEFVAL { 20 }
    ::= { isisRAEntry 7 }

    isisRAMetricType OBJECT-TYPE
        SYNTAX MetricType
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Indicates whether the metric is internal or
             external. This object follows the ManualOrAutomatic
             behavior."
        REFERENCE "{ISIS.aoi DefaultMetricType (103)}"
        DEFVAL { internal }
    ::= { isisRAEntry 8 }

    isisRASNPAAddress OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The SNPA Address to which a PDU may be forwarded in
             order to reach a destination which matches the address
             prefix of the Reachable Address. This object follows the
             ManualOrAutomatic behavior."
        REFERENCE "{ISIS.aoi sNPAAddresses (109)}"
-- note only one address may be specified per Reachable Address
-- in the MIB



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        DEFVAL { ''H }
    ::= { isisRAEntry 9 }

    isisRASNPAMask OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "A bit mask with 1 bits indicating the positions in the
             effective destination address from which embedded SNPA
             information is to be extracted. For the extraction the
             first octet of the isisRASNPAMask object value is aligned
             with the first octet (AFI) of the NSAP Address. If the
             isisRASNPAMask object value and NSAP Address are of
             different lengths, the shorter of the two is logically
             padded with zeros before performing the extraction. This
             object follows the ManualOrAutomatic behavior."
        REFERENCE "{ISIS.aoi sNPAMask (122)}"
        DEFVAL { '00'H }
    ::= { isisRAEntry 10 }

    isisRASNPAPrefix OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "A fixed SNPA prefix for use when the isisRAMapType is
             extractDSP. The SNPA Address to use is formed by
             concatenating the fixed SNPA prefix with a variable SNPA
             part that is extracted from the effective destination
             address. For Reachable Address prefixes in which the
             entire SNPA is embedded in the DSP the SNPA Prefix shall
             be null. This object follows the ManualOrAutomatic
             behavior."
        REFERENCE "{ISIS.aoi sNPAPrefix (123)}"
        DEFVAL { '00'H }
    ::= { isisRAEntry 11 }


    isisRAType OBJECT-TYPE
        SYNTAX INTEGER
            {
                manual (1),
                automatic (2)
            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION



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            "The type of Reachable address. Those of type
             manual are created by the network manager. Those
             of type automatic are created through propagation
             of routing information from another routing
             protocol (eg. IDRP). "
        DEFVAL {manual}
    ::= {isisRAEntry 12 }

-- The IP Reachable Address Group

-- The IP Reachable Address Group is optional.


-- The IP Reachable Address Table

-- Each entry records information about one IP reachable
-- address manually configured on this system or learned from
-- another protocol.

    isisIPRATable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisIPRAEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The table of IP Reachable Addresses to networks,
             subnetworks or hosts either manually configured or
             learned from another protocol."
    ::= { isisIPReachAddr 1 }

    isisIPRAEntry OBJECT-TYPE
        SYNTAX IsisIPRAEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry defines an IP Reachable Address to a network,
             subnetwork or host."
        INDEX {  isisSysInstance,
                 isisIPRAIndex,
                 isisIPRAType }
    ::= { isisIPRATable 1 }

    IsisIPRAEntry ::=
        SEQUENCE {
            isisIPRAIndex
                Integer32,
            isisIPRAType
                INTEGER,
            isisIPRADestType



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                InetAddressType,
            isisIPRADest
                InetAddress,
            isisIPRADestPrefixLen
                InetAddressPrefixLength,
            isisIPRAExistState
                RowStatus,
            isisIPRAAdminState
                AdminState,
            isisIPRAMetric
                DefaultMetric,
            isisIPRAMetricType
                MetricType,
            isisIPRAFullMetric
                FullMetric,
            isisIPRASNPAAddress
                OSINSAddress
        }

    isisIPRAIndex OBJECT-TYPE
        SYNTAX Integer32 (1..2000000000)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The identifier for this isisIPRAEntry. This value must
             be unique amongst all IP Reachable Addresses on the
             system.  This object follows the index and
             ManualOrAutomatic behaviors."
    ::= { isisIPRAEntry 1 }

    isisIPRAType OBJECT-TYPE
        SYNTAX INTEGER
            {
                manual (1),
                automatic (2)
            }
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The type of this IP Reachable Address. Those of type
             manual are created by the network manager. Those of type
             automatic are created through propagation of routing
             information from another routing protocol.  This object
             follows the ManualOrAutomatic behavior."
    ::= { isisIPRAEntry 2 }

    isisIPRADestType OBJECT-TYPE
        SYNTAX InetAddressType



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        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The type of this IP Reachable Address.  This object
             follows the ManualOrAutomatic behavior."
    ::= { isisIPRAEntry 3 }

    isisIPRADest OBJECT-TYPE
        SYNTAX InetAddress (SIZE(4|16))
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The destination of this IP Reachable Address. This is
             either a network address, subnetwork address or host
             address. This object follows the ManualOrAutomatic
             behavior."
    ::= { isisIPRAEntry 4 }

    isisIPRADestPrefixLen OBJECT-TYPE
        SYNTAX InetAddressPrefixLength (0..128)
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The length of the IP Netmask for Reachability Address.
             This object follows the ManualOrAutomatic behavior."
    ::= { isisIPRAEntry 5 }

    isisIPRAExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The state of this IP Reachable Address. This object
             follows the ExistenceState and ManualOrAutomatic
             behaviors."
        DEFVAL { active }
    ::= { isisIPRAEntry 6 }

    isisIPRAAdminState OBJECT-TYPE
        SYNTAX AdminState
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The administrative state of the IP Reachable Address. This
             object follows the AdminState and ManualOrAutomatic
             behaviors."
        DEFVAL { off }
    ::= { isisIPRAEntry 7 }



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    isisIPRAMetric OBJECT-TYPE
        SYNTAX DefaultMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The metric value for reaching the specified
             destination over this circuit. This object follows the
             ManualOrAutomatic behavior."
        DEFVAL { 10 }
    ::= { isisIPRAEntry 8 }

    isisIPRAMetricType OBJECT-TYPE
        SYNTAX MetricType
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Indicates whether the metric is internal or
             external. This object follows the ManualOrAutomatic
             behavior."
        DEFVAL { internal }
    ::= { isisIPRAEntry 9 }

    isisIPRAFullMetric OBJECT-TYPE
        SYNTAX FullMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The wide metric value for reaching the specified
             destination over this circuit. This object follows the
             ManualOrAutomatic behavior."
        DEFVAL { 10 }
    ::= { isisIPRAEntry 10 }

    isisIPRASNPAAddress OBJECT-TYPE
        SYNTAX OSINSAddress
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The SNPA Address to which a PDU may be forwarded in
             order to reach a destination which matches this IP
             Reachable Address. This object follows the
             ManualOrAutomatic behavior."
        DEFVAL { ''H }
    ::= { isisIPRAEntry 11 }

-- The Circuit CLNS Group
--
-- The Circuit CLNS Table contains objects controlling the



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-- operation of the IS functions of the CLNS protocol
--
-- This table is not implemented - jdp
--

-- The IP Destination Group

-- The IP Destination Group is present if the system forwards
-- IP packets.


-- The IP Destination Table

-- The IP Destination Table records information about each
-- destination known to the Intermediate System

-- Removed: overlaps RFC 2096 - jdp


-- The ISIS Notification Table

-- The ISIS Notification Table records fields that are
-- required for notifications

    isisNotificationTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisNotificationEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Objects seen in the most recent notification
             this instance of the IS-IS protocol."
    ::= { isisNotification 1 }

    isisNotificationEntry OBJECT-TYPE
        SYNTAX IsisNotificationEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry defines variables relevant to notifications
             for one instance of the IS-IS protocol."
        INDEX {  isisSysInstance }
    ::= { isisNotificationTable 1 }

    IsisNotificationEntry ::=
       SEQUENCE {
            isisTrapLSPID
               LinkStatePDUID,
            isisSystemLevel



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               ISLevel,
            isisPDUFragment
               IsisPDUHeader,
            isisFieldLen
               Integer32,
            isisMaxAreaAddress
               Integer32,
            isisProtocolVersion
               Integer32,
            isisLSPSize
               Integer32,
            isisOriginatingBufferSize
               Integer32,
            isisProtocolsSupported
               OCTET STRING
       }

    isisTrapLSPID OBJECT-TYPE
        SYNTAX LinkStatePDUID
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "An Octet String that uniquely identifies
             a Link State PDU."
    ::= { isisNotificationEntry 1 }

    isisSystemLevel OBJECT-TYPE
        SYNTAX ISLevel
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Identifies the level the notification applies to."
    ::= { isisNotificationEntry 2 }

    isisPDUFragment OBJECT-TYPE
        SYNTAX IsisPDUHeader
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Holds up to the first 64 bytes of a PDU that
             triggered the notification."
    ::= { isisNotificationEntry 3 }

    isisFieldLen OBJECT-TYPE
        SYNTAX Integer32 (0..255)
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION



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            "Holds the System ID length reported in PDU we received."
    ::= { isisNotificationEntry 4 }

    isisMaxAreaAddress OBJECT-TYPE
        SYNTAX Integer32 (0..255)
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Holds the Max Area Addresses reported in a PDU we received."
    ::= { isisNotificationEntry 5 }

    isisProtocolVersion OBJECT-TYPE
        SYNTAX Integer32 (0..255)
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Holds the Protocol version reported in PDU we received."
    ::= { isisNotificationEntry 6 }

    isisLSPSize OBJECT-TYPE
        SYNTAX Integer32 (1..2147483647)
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Holds the size of LSP we received that is too
             big to forward."
    ::= { isisNotificationEntry 7 }

    isisOriginatingBufferSize OBJECT-TYPE
        SYNTAX Integer32 (1..2147483647)
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Holds the size of isisSysOrigL1LSPBuffSize or
             isisSysOrigL2LSPBuffSize advertised by peer
             in TLV."
    ::= { isisNotificationEntry 8 }

    isisProtocolsSupported OBJECT-TYPE
        SYNTAX OCTET STRING (SIZE(0..255))
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The list of protocols supported by an
             adjacent system.  This may be empty."
    ::= { isisNotificationEntry 9 }

-- Type definitions



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isisTrapPrefix        OBJECT IDENTIFIER ::= { isisNotifications 0 }

    isisDatabaseOverload NOTIFICATION-TYPE
        OBJECTS {
            isisSystemLevel,
            isisSysL1State,
            isisSysL2State
        }
        STATUS current
        DESCRIPTION
            "This notification is generated when the system
             enters or leaves the Overload state.  The number
             of times this has be generated and cleared is kept
             track of by isisSysLSPL1DbaseOloads and
             isisSysLSPL2DbaseOloads."
    ::= { isisTrapPrefix 1 }

    isisManualAddressDrops NOTIFICATION-TYPE
        OBJECTS {
            isisManAreaAddrExistState
        }
        STATUS current
        DESCRIPTION
            "This notification is generated when one of the
             manual areaAddresses assigned to this system is
             ignored when computing routes.  The object
             isisManAreaAddrExistState describes the area that
             has been dropped.

             The number of times this event has been generated
             is counted by isisSysManAddrDropFromAreas.

             This notification is edge triggered, and should not
             be regenerated until an address that was used in
             the previous computation has been dropped."

    ::= { isisTrapPrefix 2 }

    isisCorruptedLSPDetected NOTIFICATION-TYPE
        OBJECTS {
            isisSystemLevel,
            isisTrapLSPID
        }
        STATUS current
        DESCRIPTION
            "This notification is generated when we find that
             an LSP that was stored in memory has become
             corrupted.  The number of times this has been



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             generated is counted by isisSysCorrLSPs.

             We forward an LSP ID.  We may have independent
             knowledge of the ID, but in some implementations
             there is a chance that the ID itself will be
             corrupted."

    ::= { isisTrapPrefix 3 }

    isisAttemptToExceedMaxSequence NOTIFICATION-TYPE
        OBJECTS {
            isisSystemLevel,
            isisTrapLSPID
        }
        STATUS current
        DESCRIPTION
            "When the sequence number on an LSP we generate
             wraps the 32 bit sequence counter, we purge and
             wait to re-announce this information.  This
             notification describes that event.  Since these
             should not be generated rapidly, we generate
             an event each time this happens.

             While the first 6 bytes of the LSPID are ours,
             the other two contain useful information."

    ::= { isisTrapPrefix 4 }

    isisIDLenMismatch  NOTIFICATION-TYPE
        OBJECTS {
            isisFieldLen,
            isisCircIfIndex,
            isisPDUFragment
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a PDU
             with a different value of the System ID Length.
             This notification includes the an index to identify
             the circuit where we saw the PDU and the header of
             the PDU which may help a network manager identify
             the source of the confusion.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from what seem to be the same source.
             This decision is up to the agent to make, and may
             be based on the circuit or on some MAC level



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             information."

    ::= { isisTrapPrefix 5 }

    isisMaxAreaAddressesMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisMaxAreaAddress,
            isisCircIfIndex,
            isisPDUFragment
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a PDU
             with a different value of the Maximum Area
             Addresses.  This notification includes the
             header of the packet, which may help a
             network manager identify the source of the
             confusion.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from what seem to be the same source."

    ::= { isisTrapPrefix 6 }

    isisOwnLSPPurge NOTIFICATION-TYPE
        OBJECTS {
            isisCircIfIndex,
            isisTrapLSPID,
            isisSystemLevel
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a PDU
             with our systemID and zero age.  This
             notification includes the circuit Index
             if available, which may help a network manager
             identify the source of the confusion."

    ::= { isisTrapPrefix 7 }

    isisSequenceNumberSkip NOTIFICATION-TYPE
        OBJECTS {
            isisTrapLSPID,
            isisCircIfIndex,
            isisSystemLevel
        }
        STATUS current



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        DESCRIPTION
            "When we receive an LSP with out System ID
             and different contents, we may need to reissue
             the LSP with a higher sequence number.

             We send this notification if we need to increase
             the sequence number by more than one.  If two
             Intermediate Systems are configured with the same
             System ID, this notification will fire."

    ::= { isisTrapPrefix 8 }

    isisAuthenticationTypeFailure NOTIFICATION-TYPE
        OBJECTS {
            isisSystemLevel,
            isisPDUFragment,
            isisCircIfIndex
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a PDU
             with the wrong  authentication type field.
             This notification includes the header of the
             packet, which may help a network manager
             identify the source of the confusion.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from what seem to be the same source."

    ::= { isisTrapPrefix 9 }

    isisAuthenticationFailure NOTIFICATION-TYPE
        OBJECTS {
            isisSystemLevel,
            isisPDUFragment,
            isisCircIfIndex
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a PDU
             with incorrect authentication information
             field.  This notification includes the header
             of the packet, which may help a network manager
             identify the source of the confusion.

             This should be an edge-triggered notification.
             We should not send a second notification about



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             PDUs received from what seem to be the same source."

    ::= { isisTrapPrefix 10 }

    isisVersionSkew NOTIFICATION-TYPE
        OBJECTS {
            isisProtocolVersion,
            isisSystemLevel,
                isisPDUFragment,
            isisCircIfIndex
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a Hello
             PDU from an IS running a different version
             of the protocol. This notification includes
             the header of the packet, which may help a
             network manager identify the source of the
             confusion.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from what seem to be the same source.
             This decision is up to the agent to make, and may
             be based on the circuit or on some MAC level
             information."

    ::= { isisTrapPrefix 11 }

    isisAreaMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisLSPSize,
            isisSystemLevel,
            isisCircIfIndex,
            isisPDUFragment
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a Hello
             PDU from an IS which does not share any
             area address. This notification includes
             the header of the packet, which may help a
             network manager identify the source of the
             confusion.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from what seem to be the same source.



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             This decision is up to the agent to make, and may
             be based on the circuit or on some MAC level
             information."

    ::= { isisTrapPrefix 12 }

    isisRejectedAdjacency NOTIFICATION-TYPE
        OBJECTS {
            isisSystemLevel,
            isisCircIfIndex
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a Hello
             PDU from an IS, but do not establish an
             adjacency due to a lack of resources.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from the same source."

    ::= { isisTrapPrefix 13 }

    isisLSPTooLargeToPropagate NOTIFICATION-TYPE
        OBJECTS {
            isisLSPSize,
            isisSystemLevel,
            isisTrapLSPID,
            isisCircIfIndex
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we attempt to propagate
             an LSP which is larger than the dataLinkBlockSize
             for a circuit.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from the same source."

    ::= { isisTrapPrefix 14 }

    isisOriginatingLSPBufferSizeMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisOriginatingBufferSize,
            isisSystemLevel,
            isisTrapLSPID,
            isisCircIfIndex



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        }
        STATUS current
        DESCRIPTION
            "A notification sent when a Level 1 LSP or Level
             2 LSP is received which is larger than the local
             value for originatingL1LSPBufferSize or
             originatingL2LSPBufferSize respectively, or when
             a Level 1 LSP or Level2 LSP is received containing
             the originatingLSPBufferSize option and the value in
             the PDU option field does not match the local value
             for originatingL1LSPBufferSize or originatingL2LSPBufferSize
             respectively.  We pass up the size from the option
             field or the size of the LSP that exceeds our
             configuration.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from the same source."

    ::= { isisTrapPrefix 15 }

    isisProtocolsSupportedMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisProtocolsSupported,
            isisSystemLevel,
            isisTrapLSPID,
            isisCircIfIndex
        }
        STATUS current
        DESCRIPTION
            "A notification sent when a non-pseudonode
             segment 0 LSP is received that has no matching
             protocols supported.
             This may be because the system does not generate
             the field, or because there are no common elements.
             The list of protocols supported should be included
             in the notification: it may be empty if the TLV
             is not supported, or if the TLV is empty.

             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from the same source."

    ::= { isisTrapPrefix 16 }

-- Agent Conformance Definitions
-- We define the objects a conformant agent must define




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isisGroups      OBJECT IDENTIFIER ::= { isisConformance 1 }
isisCompliances OBJECT IDENTIFIER ::= { isisConformance 2 }

-- compliance statements

    isisCompliance MODULE-COMPLIANCE
        STATUS current
        DESCRIPTION
            "The compliance statement for agents that support
             the ISIS MIB"
        MODULE -- this module
            MANDATORY-GROUPS {
                    isisSystemGroup,
                    isisCircuitGroup,
                    isisISAdjGroup,
                    isisNotificationObjectGroup,
                    isisNotificationGroup
        }
    ::= { isisCompliances 1 }

-- MIB Grouping

    isisSystemGroup OBJECT-GROUP
        OBJECTS {
            isisSysVersion,
            isisSysType,
            isisSysID,
            isisSysMaxPathSplits,
            isisSysMaxLSPGenInt,
            isisSysOrigL1LSPBuffSize,
            isisSysMaxAreaAddresses,
            isisSysMinL1LSPGenInt,
            isisSysMinL2LSPGenInt,
            isisSysPollESHelloRate,
            isisSysWaitTime,
            isisSysAdminState,
            isisSysL1State,
            isisSysOrigL2LSPBuffSize,
            isisSysL2State,
            isisSysLogAdjacencyChanges,
            isisSysNextCircIndex,
            isisSysExistState,
            isisSysL2toL1Leaking,
            isisSysSetOverload,
            isisSysL1MetricStyle,
            isisSysL1SPFConsiders,
            isisSysL2MetricStyle,
            isisSysL2SPFConsiders,



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            isisSysTEEnabled,
            isisSysMaxAge,
            isisSysReceiveLSPBufferSize,
            isisManAreaAddrExistState,
            isisAreaAddr,
            isisSysProtSuppExistState,
            isisSummAddrExistState,
            isisSummAddrMetric,
            isisSummAddrFullMetric,
            isisRedistributeAddrExistState,
            isisSysStatCorrLSPs,
            isisSysStatLSPDbaseOloads,
            isisSysStatManAddrDropFromAreas,
            isisSysStatAttmptToExMaxSeqNums,
            isisSysStatSeqNumSkips,
            isisSysStatOwnLSPPurges,
            isisSysStatIDFieldLenMismatches,
            isisSysStatMaxAreaAddrMismatches,
            isisSysStatPartChanges,
            isisSysStatAuthTypeFails,
            isisSysStatAuthFails
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to manage an IS-IS router."
    ::= { isisGroups 1 }

    isisCircuitGroup OBJECT-GROUP
        OBJECTS {
            isisCircIfSubIndex,
            isisCircAdminState,
            isisCircExistState,
            isisCircType,
            isisCircExtDomain,
            isisCircAdjChanges,
            isisCircInitFails,
            isisCircRejAdjs,
            isisCircIDFieldLenMismatches,
            isisCircMaxAreaAddrMismatches,
            isisCircAuthTypeFails,
            isisCircAuthFails,
            isisCircLANDesISChanges,
            isisCircLevel,
            isisCircPassiveCircuit,
            isisCircMeshGroupEnabled,
            isisCircMeshGroup,
            isisCircSmallHellos,
            isisCircUpTime,



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            isisCircIfIndex,
            isisCircLevelMetric,
            isisCircLevelWideMetric,
            isisCircLevelISPriority,
            isisCircLevelIDOctet,
            isisCircLevelID,
            isisCircLevelDesIS,
            isisCircLevelHelloMultiplier,
            isisCircLevelHelloTimer,
            isisCircLevelDRHelloTimer,
            isisCircLevelLSPThrottle,
            isisCircLevelMinLSPRetransInt,
            isisCircLevelCSNPInterval,
            isisCircLevelPartSNPInterval
        }
        STATUS current
        DESCRIPTION
            "The collection of objects used to describe in IS-IS Circuit."
    ::= { isisGroups 2 }


    isisISAdjGroup OBJECT-GROUP
        OBJECTS {
            isisISAdjState,
            isisISAdjNeighSNPAAddress,
            isisISAdjNeighSysType,
            isisISAdjNeighSysID,
            isisISAdjUsage,
            isisISAdjHoldTimer,
            isisISAdjNeighPriority,
            isisISAdjUpTime,
            isisISAdjAreaAddress,
            isisISAdjIPAddressType,
            isisISAdjIPAddress,
            isisISAdjProtSuppProtocol
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to manage an IS-IS Adjacency."
    ::= { isisGroups 3 }


    isisNotificationObjectGroup OBJECT-GROUP
        OBJECTS {
            isisSystemLevel,
            isisTrapLSPID,
            isisPDUFragment,
            isisFieldLen,



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            isisMaxAreaAddress,
            isisProtocolVersion,
            isisLSPSize,
            isisOriginatingBufferSize,
            isisProtocolsSupported
        }
        STATUS current
        DESCRIPTION
            "The objects used to record notification parameters."
    ::= { isisGroups 4 }


    isisNotificationGroup        NOTIFICATION-GROUP
        NOTIFICATIONS {
            isisDatabaseOverload,
            isisManualAddressDrops,
            isisCorruptedLSPDetected,
            isisAttemptToExceedMaxSequence,
            isisIDLenMismatch,
            isisMaxAreaAddressesMismatch,
            isisOwnLSPPurge,
            isisSequenceNumberSkip,
            isisAuthenticationTypeFailure,
            isisAuthenticationFailure,
            isisVersionSkew,
            isisAreaMismatch,
            isisRejectedAdjacency,
            isisLSPTooLargeToPropagate,
            isisOriginatingLSPBufferSizeMismatch,
            isisProtocolsSupportedMismatch
        }
        STATUS current
        DESCRIPTION
            "The collections of notifications sent by an IS."
    ::= { isisGroups 5 }


    isisISPDUCounterGroup OBJECT-GROUP
        OBJECTS {
            isisPacketCountHello,
            isisPacketCountLSP,
            isisPacketCountCSNP,
            isisPacketCountPSNP
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to count protocol PDUs."
    ::= { isisGroups 6 }



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    isisRATableGroup OBJECT-GROUP
        OBJECTS {
            isisRAExistState,
            isisRAAdminState,
            isisRAAddrPrefix,
            isisRAMapType,
            isisRAMetric,
            isisRAFullMetric,
            isisRAMetricType,
            isisRASNPAAddress,
            isisRASNPAMask,
            isisRASNPAPrefix,
            isisRAType
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to manage the
             reachable NSAP prefixes."
    ::= { isisGroups 7 }


    isisISIPRADestGroup OBJECT-GROUP
        OBJECTS {
            isisIPRADestType,
            isisIPRADest,
            isisIPRADestPrefixLen,
            isisIPRAExistState,
            isisIPRAAdminState,
            isisIPRAMetric,
            isisIPRAFullMetric,
            isisIPRAMetricType,
            isisIPRASNPAAddress
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to manage configured
             IP addresses."
    ::= { isisGroups 8 }

END



6. Acknowledgments


   This draft MIB is based on a March 1994 Internet Draft by Chris
   Gunnerr, who should be held blameless for the errors introduced since



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   then.

   We would like to thank the following individuals for constructive and
   valuable comments:  Neal Castagnoli, Ken Chapman, Satish Dattatri,
   Les Ginsberg, Jeff Gross, Jim Halpin, Dimitri Haskin, Peter
   Higginson, Gavin McPherson, Kay Noguchi, Serge Maskalik, Jeff
   Pickering, Swaminatha Ramalingam, Aravind Ravikumar, Juergen
   Schoenwaelder, Koen Vermeulen, and Hans De Vleeschouwer.


7. Security Considerations


   Certain management information defined in this MIB may be considered
   sensitive in some network environments.

   There are a number of management objects defined in this MIB that
   have a MAX-ACCESS clause of read-write and/or read-create.  Such
   objects may be considered sensitive or vulnerable in some network
   environments.  The support for SET operations in a non-secure
   environment without proper protection can have a negative effect on
   network operations.

   Therefore, authentication of received SNMP requests and controlled
   access to management information should be employed in such
   environments.

   SNMPv1 by itself is not a secure environment.  Even if the network
   itself is secure (for example by using IPSec), even then, there is no
   control as to who on the secure network is allowed to access and
   GET/SET (read/change/create/delete) the objects in this MIB.

   It is recommended that the implementers consider the security
   features as provided by the SNMPv3 framework.  Specifically, the use
   of the User-based Security Model RFC 2574 [RFC2574] and the View-
   based Access Control Model RFC 2575 [RFC2575] is recommended.

   It is then a customer/user responsibility to ensure that the SNMP
   entity giving access to an instance of this MIB, is properly
   configured to give access to the objects only to those principals
   (users) that have legitimate rights to indeed GET or SET
   (change/create/delete) them.









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8. References

   [1]  "Integrated IS-IS Management Information Base", IETF Draft,
        March 1994, Chris Gunner.


   [2]  ISO 10589, "Intermediate System to Intermediate System Intra-
        Domain Routeing Exchange Protocol for use in Conjunction with
        the Protocol for Providing the Connectionless-mode Network
        Service (ISO 8473)", 1992.


   [RFC1155] Rose, M., and K. McCloghrie, Structure and Identification
        of Management Information for TCP/IP-based Internets, STD 16,
        RFC 1155, May 1990.


   [RFC1157] Case, J., Fedor, M., Schoffstall, M., and J. Davin, Simple
        Network Management Protocol, STD 15, RFC 1157, May 1990.


   [RFC1195] Callon, R., "Use of OSI IS-IS for Routing in TCP/IP and
        Dual Environments", RFC 1195, December 1990


   [RFC1212] Rose, M., and K. McCloghrie, Concise MIB Definitions, STD
        16, RFC 1212, March 1991.


   [RFC1215] M. Rose, A Convention for Defining Traps for use with the
        SNMP, RFC 1215, March 1991.


   [RFC1901] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
        Introduction to Community-based SNMPv2, RFC 1901, January 1996.


   [RFC1905] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
        Protocol Operations for Version 2 of the Simple Network
        Management Protocol (SNMPv2), RFC 1905, January 1996.


   [RFC1906] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
        Transport Mappings for Version 2 of the Simple Network
        Management Protocol (SNMPv2), RFC 1906, January 1996.


   [RFC2570] Case, J., Mundy, R., Partain, D., and B. Stewart,



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        Introduction to Version 3 of the Internet-standard Network
        Management Framework, RFC 2570, April 1999..sp 2


   [RFC2571] Harrington, D., Presuhn, R., and B. Wijnen, An Architecture
        for Describing SNMP Management Frameworks, RFC 2571, April 1999.


   [RFC2572] Case, J., Harrington D., Presuhn R., and B. Wijnen, Message
        Processing and Dispatching for the Simple Network Management
        Protocol (SNMP), RFC 2572, April 1999.


   [RFC2573] Levi, D., Meyer, P., and B. Stewart, SNMPv3 Applications,
        RFC 2573, April 1999.



   [RFC2574] Blumenthal, U., and B. Wijnen, "User-based Security Model
        (USM) for version 3 of the Simple Network Management Protocol
        (SNMPv3)", RFC 2574, April 1999.


   [RFC2575] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based
        Access Control Model for the Simple Network Management Protocol
        (SNMP)", RFC 2575, April 1999.


   [RFC2578] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
        Rose, M., and S. Waldbusser, Structure of Management Information
        Version 2 (SMIv2), STD 58, RFC 2578, April 1999.


   [RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
        Rose, M., and S. Waldbusser, Textual Conventions for SMIv2, STD
        58, RFC 2579, April 1999.


   [RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
        Rose, M., and S. Waldbusser, Conformance Statements for SMIv2,
        STD 58, RFC 2580, April 1999.


   [RFC2851] Daniele, M., Haberman, B., Routhier, S., Schoenwaelder, J.,
        "Textual Conventions for Internet Network Addresses", RFC 2851,
        June 2000.





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9. Authors' Address


   Jeff Parker
   Axiowave Networks
   200 Nickerson Road,
   Marlborough, MA 01752

   email: jparker@axiowave.com


10. Full Copyright Statement


   Copyright (C) The Internet Society (1997).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."












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