Internet Engineering Task Force                      Jeff Parker, Editor
INTERNET DRAFT                                         Axiowave Networks
Expiration date: Sept 1, 2005                               Feb  9, 2005


                 Management Information Base for IS-IS
                    <draft-ietf-isis-wg-mib-17.txt>



Status of this Memo

   By submitting this Internet-Draft, I certify that any applicable
   patent or other IPR claims of which I am aware have been disclosed,
   and any of which I become aware will be disclosed, in accordance with
   RFC 3668.

   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 (2005).  All
   Rights Reserved.














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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.




Table of Contents

       1.  Overview . . . . . . . . . . . . . . . . . . . . . .     2
       2.  The Internet-Standard Management Framework . . . . .     5
       3.  Definition of IS-IS MIB. . . . . . . . . . . . . . .     6
       4.  Acknowledgments. . . . . . . . . . . . . . . . . . .    86
       5.  Security Considerations. . . . . . . . . . . . . . .    86
       6.  Normative References . . . . . . . . . . . . . . . .    88
       7.  Informative References . . . . . . . . . . . . . . .    90
       8.  Authors' Address . . . . . . . . . . . . . . . . . .    90
       9.  Full Copyright Statement . . . . . . . . . . . . . .    90
      10.  Intellectual Property. . . . . . . . . . . . . . . .    90


1. Overview

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

   This MIB imports definitions from SNMPv2-TC [RFC2579], SNMPv2-SMI
   [RFC2578] SNMPv2-CONF [RFC2580], SNMP-FRAMEWORK-MIB [RFC2571],
   DIFFSERV-MIB [RFC3289], IF-MIB [RFC1229], and INET-ADDRESS-MIB
   [RFC3291].  See the imports section of the MIB for the specific items
   imported.


   The IS-IS MIB defines the following objects


   System-wide Attributes



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  - isisSystem

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

  - isisManAreaAddr

       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.

  - isisSummAddr

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

  - isisRedistributeAddr

       This table provides criteria to decide if a route should be
       leaked from L2 to L1 when Domain Wide Prefix leaking is enabled.

  - isisRouter

       This table holds the hostname and router ID for Intermediate
       System peers.

  - isisSysLevel

       This table contains information specific to a domain (Level 2) or
       an area (Level 1) of the IS-IS protocol.

  - isisNextCircIndex

       This scalar is used to provide a unique circuit index.



  Circuit-specific Attributes


  - isisCirc

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



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  - 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

       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



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       Intermediate Systems as reported in received IIH PDUs.



  Attributes associated with 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.




  Attributes associated with Link State PDU Table


  - isisLSPSummaryTable

       The Link State PDU Summary Table

       This table contains information contained in the headers of Link
       State PDUs stored by the system.

  - isisLSPTLVTable


       The Link State PDU TLV Table

       This table holds the sequence of TLVs that make up an LSP
       fragment.



  Attributes associated with a Notification

  - isisNotification




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



2. The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580]



3. Definition of IS-IS MIB


--  Changes in version 17
--
--      Limited the types of address supported to IPv4 or IPv6
--      Added InterfaceIndex for CircIndex
--      Changed names to match MIB guidelines
--      Added display hints for Textual Conventions
--      Cleaned up formatting
--      Replaced isisSysProtSuppTable with BITS
--      Limit states required to support RowStatus
--      Removed arbitrary limits, replaces with non-zero unsigned
--      Added SysLevel to IPRA table
--      Changed access type on a number of fields
--      Replace "out System ID" with "our System ID"
--      Change access for Indicies
--      Add new objects for notifications
--      New MIB Boilerplate
--      Removed use of TimeTicks
--      Removed 0 as possible length for LSPID
--      Removed references to isisSysOrigLSPBuffSize
--      Elaborated Units clauses
--      New definition of isisCircLevelIDOctet
--      Added isisPduBufferSize to isisOrigLSPBuffSizeMismatch
--      Removed reference to isisManAreaAddr, isisSysManAddrDropFromAreas



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--          isisOriginatingBufferSize,
--      Remove replaceOnlyWhileDisabled from isisSysLevelMetricStyle
--          and isisSysLevelOrigLSPBuffSize
--      Edited units to isisCircLastUpTime and isisPacketCountLSP
--      Edited description of isisCircLastUpTime
--      Modified text of isisAreaAddrTable to include areas we generate
--      Changed name isisSysLevelOverloadState to isisSysLevelState,
--          modified description
--      Moved REVISION, added DESCRIPTION

ISIS-MIB DEFINITIONS ::= BEGIN
     IMPORTS
        TEXTUAL-CONVENTION, RowStatus, TruthValue
                FROM SNMPv2-TC
        MODULE-IDENTITY, OBJECT-TYPE, Integer32, Unsigned32,
            Counter32, experimental, NOTIFICATION-TYPE
                FROM SNMPv2-SMI
        MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
                FROM SNMPv2-CONF
        SnmpAdminString
                FROM SNMP-FRAMEWORK-MIB
        IndexInteger, IndexIntegerNextFree
                FROM DIFFSERV-MIB
        InterfaceIndex
                FROM IF-MIB
        InetAddressType, InetAddress, InetAddressPrefixLength
                FROM INET-ADDRESS-MIB;

    isisMIB MODULE-IDENTITY
        LAST-UPDATED "200502091200Z" -- Feb 9th, 2005, noon
        ORGANIZATION "IETF IS-IS for IP Internets Working Group"
        CONTACT-INFO
            "IS-IS for IP Internets working Group
             http://www.ietf.org/html.charters/isis-charter.html
             isis-wg@ietf.org

             Jeff Parker
             Department of Computer Science
             Middlebury College,
             Middlebury, Vermont 05753

             jparker at world dot std dot edu"

        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.



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             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.

             Copyright (C) The Internet Society (2005).  This version
             of this MIB module is part of RFC 0DDD;  see the RFC
             itself for full legal notices."

        REVISION "200502091200Z" -- Feb 9th, 2005, noon

        DESCRIPTION
            "Initial version, published as RFC B0FF0"

    ::= { experimental 37 }

-- Top-level structure of the MIB

isisNotifications       OBJECT IDENTIFIER ::= { isisMIB 0 }
isisObjects             OBJECT IDENTIFIER ::= { isisMIB 1 }
isisConformance         OBJECT IDENTIFIER ::= { isisMIB 2 }

-- OBJECT IDENTIFIER definitions

-- System wide attributes.
isisSystem OBJECT IDENTIFIER ::= { isisObjects 1 }

-- Attributes associated with the domain or with the area.
isisSysLevel OBJECT IDENTIFIER ::= { isisObjects 2 }

-- Attributes associated with one Circuit
isisCirc OBJECT IDENTIFIER ::= { isisObjects 3 }

-- Attributes associated with area or domain relevant within a Circuit.
isisCircLevelValues OBJECT IDENTIFIER ::= { isisObjects 4 }

-- System and circuit counters.
isisCounters OBJECT IDENTIFIER ::= { isisObjects 5 }

-- Attributes associated with an adjacent Protocol Peer.
isisISAdj OBJECT IDENTIFIER ::= { isisObjects 6 }

-- Attributes associated with a configured address.
isisReachAddr OBJECT IDENTIFIER ::= { isisObjects 7 }



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-- Attributes associated with IP routes learned by
-- configuration or through another protocol.
isisIPReachAddr OBJECT IDENTIFIER ::= { isisObjects 8 }

-- The collection of Link State PDUs known to the Intermediate System
isisLSPDataBase OBJECT IDENTIFIER ::= { isisObjects 9 }

-- Objects included in Notifications.
isisNotification OBJECT IDENTIFIER ::= { isisObjects 10 }

-- Type definitions

    IsisOSINSAddress ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "OSI Network Service Address, e.g. NSAP, SNPA, or Network
             Entity Title"
        SYNTAX OCTET STRING (SIZE(0..20))

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

    IsisLinkStatePDUID ::= 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)
            }

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



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    IsisLevelState ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "States of the IS-IS protocol."
        SYNTAX INTEGER
            {
                off (1),
                on (2),
                waiting (3),
                overloaded(4)
            }

    IsisSupportedProtocol ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Types of network protocol supported by Integrated IS-IS.
             The values for ISO8473 and IP are those registered for
             these protocols in ISO TR9577."
        SYNTAX INTEGER
            {
                iso8473(129),
                ipV6(142),
                ip(204)
            }

    IsisDefaultMetric ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"
        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)

    IsisWideMetric ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"
        STATUS current
        DESCRIPTION
            "Wide Metric for IS Neighbors.  ISO 10589 provides a
             6 bit metric.  Traffic Engineering extensions provide
             24 bit metrics."
        SYNTAX Unsigned32 (0..16777215)

    IsisFullMetric ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"
        STATUS current
        DESCRIPTION
            "Full Metric for IP Routes.  Traffic Engineering extensions



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             provide 32 bit metrics."
        SYNTAX Unsigned32

    IsisMetricType ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Is this an Internal or External Metric?"
        SYNTAX INTEGER
            {
                internal(1),
                external(2)
            }

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

    IsisISLevel ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Identifies a level."
        SYNTAX INTEGER
            {
                area(1),        -- L1
                domain(2)       -- L2
            }

    IsisPDUHeader ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "A block to contain the header from a PDU."
        SYNTAX OCTET STRING (SIZE(0..64))

    IsisCircuitID ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "ID for a circuit."
        SYNTAX OCTET STRING (SIZE(0|7))

    IsisISPriority ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"



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        STATUS current
        DESCRIPTION
            "Integer sub-range for IS-IS priority."
        SYNTAX Integer32 (0..127)

    Unsigned16TC ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"
        STATUS current
        DESCRIPTION
            "An Unsigned32 further restricted to 16 Bits. Note that
             the ASN.1 BER encoding may still require 24 Bits for
             some values."
        SYNTAX Unsigned32 (0..65535)

    Unsigned8TC ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"
        STATUS current
        DESCRIPTION
            "An Unsigned32 further restricted to 8 Bits. Note that
             the ASN.1 BER encoding may still require 16 Bits for
             some values."
        SYNTAX Unsigned32 (0..255)

-- 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."

    isisSysObject  OBJECT IDENTIFIER ::= { isisSystem 1 }



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    isisSysVersion OBJECT-TYPE
        SYNTAX INTEGER
            {
                unknown(0),
                one(1)
            }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The version number of the IS-IS protocol that
             is implemented."
        REFERENCE "{ISIS.aoi version (1)}"
        DEFVAL { one }
    ::= { isisSysObject 1 }

    isisSysType OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1IS (1),
                level2IS (2),
                level1L2IS (3)
            }
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "At which levels is the Intermediate System
             running? This object may not be modified when
             the isisSysAdminState variable is in state 'on'
             for this Intermediate System."
        REFERENCE "{ISIS.aoi iSType (2)}"
        DEFVAL { level1L2IS }
    ::= { isisSysObject 2 }

    isisSysID OBJECT-TYPE
        SYNTAX IsisSystemID
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "The ID for this Intermediate System.
             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)}"
    ::= { isisSysObject 3 }



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    isisSysMaxPathSplits OBJECT-TYPE
        SYNTAX Integer32 (1..32)
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Maximum number of paths with equal routing metric value
             which it is permitted to split between. This object
             may not be modified when the isisSysAdminState variable
             is in state 'on' for this Intermediate System."
        REFERENCE "{ISIS.aoi maximumPathSplits (3)}"
        DEFVAL { 2 }
    ::= { isisSysObject 4 }

    isisSysMaxLSPGenInt OBJECT-TYPE
        SYNTAX Integer32 (1..65235)
        UNITS "seconds"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Maximum interval, in seconds, between generated LSPs
             by this Intermediate System. This object follows
             the resettingTimer behavior.  The value must be
             greater than any value configured for
             isisSysLevelMinLSPGenInt, and should be at least 300
             seconds less than isisSysMaxAge."
        REFERENCE "{ISIS.aoi maximumLSPGenerationInterval (6)}"
        DEFVAL { 900 }
    ::= { isisSysObject 5 }

    isisSysPollESHelloRate OBJECT-TYPE
        SYNTAX Unsigned16TC (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-write
        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 }
    ::= { isisSysObject 6 }

    isisSysWaitTime OBJECT-TYPE
        SYNTAX Unsigned16TC (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION



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            "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 }
    ::= { isisSysObject 7 }

    isisSysAdminState OBJECT-TYPE
        SYNTAX AdminState
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "The administrative state of this Intermediate
             System.  Setting this object to the value 'on'
             when its current value is 'off' enables
             the Intermediate System."
        DEFVAL { off }
    ::= { isisSysObject 8 }

    isisSysL2toL1Leaking OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "If true, allow the router to leak L2 routes into L1."
        DEFVAL { false }
    ::= { isisSysObject 9 }

    isisSysMaxAge OBJECT-TYPE
        SYNTAX Unsigned16TC (350..65535)
        UNITS "seconds"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Value to place in RemainingLifeTime field of
             the LSPs we generate.
             This should be at least 300 seconds greater than
             isisSysMaxLSPGenInt."
        DEFVAL { 1200 }
    ::= { isisSysObject 10 }

    isisSysReceiveLSPBufferSize OBJECT-TYPE
        SYNTAX Unsigned16TC (1492..16000)
        UNITS "bytes"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Size of the largest Buffer we are designed or



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             configured to store.  This should be at least
             as big as the maximum isisSysLevelOrigLSPBuffSize
             supported by the system.

             If resources allow, we will store and flood LSPs
             larger than isisSysReceiveLSPBufferSize, as this
             can help avoid problems in networks with different
             values for isisSysLevelOrigLSPBuffSize."
        DEFVAL { 1492 }
    ::= { isisSysObject 11 }

    isisSysProtSupported OBJECT-TYPE
        SYNTAX BITS {
                    iso8473 (0),
                    ipv4 (1),
                    ipv6 (2)
                  }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "This attribute contains the set of protocols
             supported by this Intermediate System."
    ::= { isisSysObject 12 }

-- The Level 1 Manual Area Address Table
-- contains the set of area addresses manually configured
-- for this Intermediate System.
-- At least one row in which the value of isisManAreaAddrExistState
-- is active must be present. The maximum number of rows
-- in this table for for which the object
-- isisManAreaAddrExistState has the value active is 3.
--     An attempt to create more 3 rows of isisManAreaAddrEntry
-- with state 'active' in one instance of the IS-IS protocol
-- should return 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



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        STATUS current
        DESCRIPTION
            "Each entry contains one area address manually configured
             on this system"
        INDEX { isisManAreaAddr }
    ::= { isisManAreaAddrTable 1 }

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

    isisManAreaAddr OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        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
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The state of the isisManAreaAddrEntry. This object
             follows the Row Status behavior. If the isisSysAdminState
             for this Intermediate System 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
             Intermediate System should return inconsistentValue."
    ::= { isisManAreaAddrEntry 2 }

-- The Level 1 Area Address Table

-- The Level 1 Area Address Table contains the
-- union of the sets of relevant area addresses configured
-- or learned from Level 1 LSPs received by this Intermediate System.



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    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 fragment number zero generated by this
             Intermediate System, or  received from other 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 generated or received by this Intermediate
             System."
        INDEX { isisAreaAddr }
    ::= { isisAreaAddrTable 1 }

    IsisAreaAddrEntry ::=
        SEQUENCE {
            isisAreaAddr
                IsisOSINSAddress
            }

    isisAreaAddr OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "An area address reported in a Level 1 LSP."
    ::= { isisAreaAddrEntry 1 }

-- The Summary Address Table

-- The Summary Address Table contains the set of summary
-- addresses manually configured for the Intermediate System.
--
-- This is used to control leaking L1 routes into L2.

    isisSummAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisSummAddrEntry
        MAX-ACCESS not-accessible
        STATUS current



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        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 4 }

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

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

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

    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.  An
             implementation is only required to support IPv4
             and IPv6 addresses."



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    ::= { 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.
             The address must not contain any set host bits
             (bits set after the address prefix determined by
             isisSummAddrPrefixLen)."
    ::= { isisSummAddrEntry 2 }

    isisSummAddrPrefixLen OBJECT-TYPE
        SYNTAX InetAddressPrefixLength (0..128)
        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.  Support for createAndWait
             and notInService is not required."
    ::= { isisSummAddrEntry 4 }

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

    isisSummAddrFullMetric OBJECT-TYPE
        SYNTAX IsisFullMetric
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The wide metric value to announce this summary



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             address within 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.

             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 announced as is, without being summarized.  Routes
             that do not match a summary mask are not announced."
    ::= { isisSystem 5 }

    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 { isisRedistributeAddrType,
                isisRedistributeAddrAddress,
                isisRedistributeAddrPrefixLen }
    ::= { isisRedistributeAddrTable 1 }

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

    isisRedistributeAddrType OBJECT-TYPE



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        SYNTAX InetAddressType
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The Type of IP address for this summary address.
             This object follows the index behavior.  An
             implementation is only required to support
             IPv4 and IPv6 addresses."
    ::= { 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.  The
             address must not contain any set host bits
             (bits set after the address prefix determined by
             isisRedistributeAddrPrefixLen)."
    ::= { isisRedistributeAddrEntry 2 }

    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.  Support for createAndWait
             and notInService is not required."
    ::= { isisRedistributeAddrEntry 4 }

-- The Router Table keeps track of hostnames and router IDs
-- associated with Intermediate Systems in the area and domain.

    isisRouterTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisRouterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION



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            "The set of hostnames and router ID."
    ::= { isisSystem 6 }

    isisRouterEntry OBJECT-TYPE
        SYNTAX IsisRouterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry tracks information about one Intermediate
             System at one level."
        INDEX { isisRouterSysID,
                isisRouterLevel }
    ::= { isisRouterTable 1 }

    IsisRouterEntry ::=
        SEQUENCE {
            isisRouterSysID
                IsisSystemID,
            isisRouterLevel
                IsisISLevel,
            isisRouterHostName
                SnmpAdminString,
            isisRouterID
                Unsigned32
        }

    isisRouterSysID OBJECT-TYPE
        SYNTAX IsisSystemID
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The System ID of the Intermediate System."
    ::= { isisRouterEntry 1 }

    isisRouterLevel OBJECT-TYPE
        SYNTAX IsisISLevel
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level at which the information about this
             Intermediate System was received."
    ::= { isisRouterEntry 2 }

    isisRouterHostName OBJECT-TYPE
        SYNTAX SnmpAdminString
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION



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            "The hostname listed in the LSP, or a zero-length
             string if none."
    ::= { isisRouterEntry 3 }

    isisRouterID OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The Router ID found in the LSP, or zero if none."
    ::= { isisRouterEntry 4 }

-- The System Level Table
-- This table captures level-specific information about the System

    isisSysLevelTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisSysLevelEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Level specific information about the System."
    ::= { isisSysLevel 1 }

    isisSysLevelEntry OBJECT-TYPE
        SYNTAX IsisSysLevelEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Describe variables defined for Area or Domain."
        INDEX { isisSysLevelIndex }
    ::= { isisSysLevelTable 1 }

    IsisSysLevelEntry ::=
        SEQUENCE {
            isisSysLevelIndex
          IsisISLevel,
            isisSysLevelOrigLSPBuffSize
                IsisLSPBuffSize,
            isisSysLevelMinLSPGenInt
                Unsigned16TC,
            isisSysLevelState
                IsisLevelState,
            isisSysLevelSetOverload
                TruthValue,
            isisSysLevelSetOverloadUntil
                Unsigned32,
            isisSysLevelMetricStyle
                IsisMetricStyle,



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            isisSysLevelSPFConsiders
                IsisMetricStyle,
            isisSysLevelTEEnabled
                TruthValue
        }

    isisSysLevelIndex OBJECT-TYPE
        SYNTAX IsisISLevel
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level that this entry describes."
    ::= { isisSysLevelEntry 1 }

    isisSysLevelOrigLSPBuffSize OBJECT-TYPE
        SYNTAX IsisLSPBuffSize
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "The maximum size of LSPs and SNPs originated by
             this Intermediate System at this level.  This
             object may not be modified when the isisSysAdminState
             variable is in state 'on' for this Intermediate System."
        REFERENCE "{ISIS.aoi originatingL1LSPBufferSize (9)}"
        DEFVAL { 1492 }
    ::= { isisSysLevelEntry 2 }

    isisSysLevelMinLSPGenInt OBJECT-TYPE
        SYNTAX Unsigned16TC (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Minimum interval, in seconds, between successive
             generation of LSPs with the same LSPID at this level
             by this Intermediate System.  This object
             follows the resettingTimer behavior."
        REFERENCE "{ISIS.aoi minimumLSPGenerationInterval (11)}"
        DEFVAL { 30 }
    ::= { isisSysLevelEntry 3 }

    isisSysLevelState OBJECT-TYPE
        SYNTAX IsisLevelState
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The state of the database at this level.
             The value 'off' indicates that IS-IS is not active at



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             this level.
             The value 'on' indicates that IS-IS is active at this
             level, and not overloaded.
             The value 'waiting' indicates a database that is low on
             an essential resource, such as memory.
             The administrator may force the state to 'overloaded'
             by setting the object isisSysLevelSetOverload.
             If the state is 'waiting' or 'overloaded', we
             originate LSPs with the Overload bit set."
        REFERENCE "{ISIS.aoi l1State (17)}"
    ::= { isisSysLevelEntry 4 }

    isisSysLevelSetOverload OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Administratively set the overload bit for the level.
             The overload bit will continue to be set if the
             implementation runs out of memory, independent of
             this variable.  It may also be set manually independent
             of this variable, using the isisSysLevelSetOverloadUntil object."
        DEFVAL { false }
    ::= { isisSysLevelEntry 5 }

    isisSysLevelSetOverloadUntil OBJECT-TYPE
        SYNTAX Unsigned32(1..4294967295)
        UNITS "Seconds until clearing manually set Overload Bit"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "If this object is non-zero, the overload bit is set at
             this level when the isisSysAdminState variable goes to
             state 'on' for this Intermediate System.  The overload bit
             remains set for isisSysLevelSetOverloadUntil seconds.
             When isisSysLevelSetOverloadUntil seconds have elapsed,
             the overload flag remains set if the implementation has
             run out of memory, or if it is set manually using the
             isisSysLevelSetOverload object."
    ::= { isisSysLevelEntry 6 }

    isisSysLevelMetricStyle OBJECT-TYPE
        SYNTAX IsisMetricStyle
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Which style of Metric do we generate in our LSPs
             at this level?"



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        DEFVAL { narrow }
    ::= { isisSysLevelEntry 7 }

    isisSysLevelSPFConsiders OBJECT-TYPE
        SYNTAX IsisMetricStyle
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Which style of Metric do we consider in our
             SPF computation at this level?"
        DEFVAL { narrow }
    ::= { isisSysLevelEntry 8 }

    isisSysLevelTEEnabled OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Do we do Traffic Engineering at this level?"
        DEFVAL { false }
    ::= { isisSysLevelEntry 9 }


-- Static to provide next CircIndex

    isisNextCircIndex OBJECT-TYPE
        SYNTAX IndexIntegerNextFree
        MAX-ACCESS read-only
        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."
    ::= { isisCirc  1 }

-- The Circuit Table
-- Each broadcast or point-to-point interface on the system
-- corresponds to one entry in the Circuit table.  However, there
-- may be multiple X.25 DA circuit entries in the Circuit table
-- for a given X.25 interface.



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    isisCircTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisCircEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The table of circuits used by this
             Intermediate System."
    ::= { isisCirc 2 }

    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 { isisCircIndex }
    ::= { isisCircTable 1 }

    IsisCircEntry ::=
        SEQUENCE {
            isisCircIndex
                IndexInteger,
            isisCircIfIndex
                InterfaceIndex,
            isisCircIfSubSelector
                Integer32,
            isisCircAdminState
                AdminState,
            isisCircExistState
                RowStatus,
            isisCircType
                INTEGER,
            isisCircExtDomain
                TruthValue,
            isisCircLevel
          INTEGER,
            isisCircPassiveCircuit
                TruthValue,
            isisCircMeshGroupEnabled
                INTEGER,
            isisCircMeshGroup
                Unsigned32,
            isisCircSmallHellos
                TruthValue,
            isisCircLastUpTime
                Unsigned32,
            isisCirc3WayEnabled



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                TruthValue,
            isisCircExtendedCircID
                Unsigned32
        }

    isisCircIndex OBJECT-TYPE
        SYNTAX IndexInteger
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The identifier of this circuit, unique within the
             Intermediate System.  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 InterfaceIndex
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The value of ifIndex for the interface to which this
             circuit corresponds.   This object cannot be modified
             after creation."
    ::= { isisCircEntry 2 }

    isisCircIfSubSelector 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



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        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.  Support for createAndWait and
             notInService is not required."
    ::= { isisCircEntry 5 }

    isisCircType OBJECT-TYPE
        SYNTAX INTEGER
            {
                broadcast(1),
                ptToPt(2),
                staticIn(3),
                staticOut(4),
                dA(5)
            }
        MAX-ACCESS read-create
        STATUS current
        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 IS-IS PDUs on this
             circuit."
        REFERENCE "{ISIS.aoi externalDomain (46)}"
        DEFVAL { false }
    ::= { isisCircEntry 7 }

    isisCircLevel OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1(1),



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                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 IS-IS Protocol?"
        DEFVAL { false }
    ::= { isisCircEntry 9 }

    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 "{ RFC 2973 }"
        DEFVAL { inactive }
    ::= { isisCircEntry 10 }

    isisCircMeshGroup OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
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             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 or blocked, this value is ignored."
        REFERENCE "{ RFC 2973 }"
    ::= { 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 }

    isisCircLastUpTime OBJECT-TYPE
        SYNTAX Unsigned32
        UNITS "Seconds since startup when this circuit was last 'on'"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "If the circuit is enabled, the number of seconds
             since system startup when isisCircAdminState most
             recently entered the state 'on', or 0 if the
             circuit has never been 'on'."
    ::= { isisCircEntry 13 }

    isisCirc3WayEnabled OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Is this circuit enabled to run 3Way handshake?"
        DEFVAL { true }
    ::= { isisCircEntry 14 }

    isisCircExtendedCircID OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The value to be used as the extended circuit ID in
             3Way handshake.  This value is only used if



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             isisCirc3WayEnabled is true, and must be unique across
             all circuits on this IS."
    ::= { isisCircEntry 15 }

-- 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 { isisCircIndex,
                isisCircLevelIndex }
    ::= { isisCircLevelTable 1 }

    IsisCircLevelEntry ::=
        SEQUENCE {
            isisCircLevelIndex
          IsisISLevel,
            isisCircLevelMetric
                IsisDefaultMetric,
            isisCircLevelWideMetric
                IsisWideMetric,
            isisCircLevelISPriority
                IsisISPriority,
            isisCircLevelIDOctet
                Integer32,
            isisCircLevelID
                IsisCircuitID,
            isisCircLevelDesIS
                IsisCircuitID,
            isisCircLevelHelloMultiplier
                Integer32,
            isisCircLevelHelloTimer
                Integer32,
            isisCircLevelDRHelloTimer
                Integer32,



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            isisCircLevelLSPThrottle
                Unsigned16TC,
            isisCircLevelMinLSPRetransInt
                Integer32,
            isisCircLevelCSNPInterval
                Integer32,
            isisCircLevelPartSNPInterval
                Integer32
        }

    isisCircLevelIndex OBJECT-TYPE
        SYNTAX IsisISLevel
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level that this entry describes."
    ::= { isisCircLevelEntry 1 }

    isisCircLevelMetric OBJECT-TYPE
        SYNTAX IsisDefaultMetric
        MAX-ACCESS read-write
        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 IsisWideMetric
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "The wide metric value of this circuit for this level."
        DEFVAL { 10 }
    ::= { isisCircLevelEntry 3 }

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




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    isisCircLevelIDOctet OBJECT-TYPE
        SYNTAX Integer32(0..255)
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "A one byte identifier for the circuit selected by the
             Intermediate System.

             On point-to-point circuits, the value is used as the Local
             Circuit ID in point-to-point IIH PDUs transmitted on this
             circuit.  In this case, values of isisCircLevelIDOctet do
             not need to be unique.

             For broadcast circuits, the value is used to generate the
             LAN ID that will be used if this Intermediate System is
             elected as the Designated IS on this circuit.  The value
             is required to differ on LANs where the Intermediate System
             is the Designated Intermediate System."
    ::= { isisCircLevelEntry 5 }

    isisCircLevelID OBJECT-TYPE
        SYNTAX IsisCircuitID
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "On a point to point circuit with a fully initialized
             adjacency to a peer IS, the value of this object is
             the circuit ID negotiated during adjacency initialization.
             On a point to point circuit without such an adjacency,
             the value is the concatenation of the local system ID
             and the one byte isisCircLevelIDOctet for this circuit
             i.e. the value that would be proposed for the circuit ID.

             On other circuit types, the value returned is the zero
             length OCTET STRING."
        REFERENCE "{ISIS.aoi ptPtCircuitID (51)}"
    ::= { isisCircLevelEntry 6 }

    isisCircLevelDesIS OBJECT-TYPE
        SYNTAX IsisCircuitID
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The ID of the LAN Designated Intermediate System
             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."



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        REFERENCE "{ISIS.aoi l2DesignatedIntermediateSystem (75)}"
    ::= { isisCircLevelEntry 7 }

    isisCircLevelHelloMultiplier OBJECT-TYPE
        SYNTAX Integer32 (2..100)
        MAX-ACCESS read-write
        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-write
        STATUS current
        DESCRIPTION
            "Maximum period, in milliseconds, between IIH PDUs
             on multiaccess networks at this level for LANs.
             The value at L1 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-write
        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."
        REFERENCE "{ISIS.aoi iSISHelloTimer (45)}"
        DEFVAL { 1000 }
    ::= { isisCircLevelEntry 10 }




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    isisCircLevelLSPThrottle OBJECT-TYPE
        SYNTAX Unsigned16TC (1..65535)
        UNITS "milliseconds"
        MAX-ACCESS read-write
        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 { 30 }
    ::= { isisCircLevelEntry 11 }

    isisCircLevelMinLSPRetransInt OBJECT-TYPE
        SYNTAX Integer32 (1..300)
        UNITS "seconds"
        MAX-ACCESS read-write
        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-write
        STATUS current
        DESCRIPTION
            "Interval of time, in seconds, between periodic
             transmission of a complete set of CSNPs on
             multiaccess networks if this router is the
             designated router at this level.
             This object follows the resettingTimer behavior."
        REFERENCE "{ISIS.aoi completeSNPInterval (8)}"
        DEFVAL { 10 }
    ::= { isisCircLevelEntry 13 }

    isisCircLevelPartSNPInterval OBJECT-TYPE
        SYNTAX Integer32 (1..120)
        UNITS "seconds"



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        MAX-ACCESS read-write
        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 this Intermediate System."
    ::= { isisCounters 1 }

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

    IsisSystemCounterEntry ::=
        SEQUENCE {
            isisSysStatLevel
          IsisISLevel,
            isisSysStatCorrLSPs
                Counter32,
            isisSysStatAuthTypeFails
                Counter32,
            isisSysStatAuthFails
                Counter32,
            isisSysStatLSPDbaseOloads
                Counter32,
            isisSysStatManAddrDropFromAreas
                Counter32,
            isisSysStatAttmptToExMaxSeqNums
                Counter32,
            isisSysStatSeqNumSkips
                Counter32,
            isisSysStatOwnLSPPurges



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                Counter32,
            isisSysStatIDFieldLenMismatches
                Counter32,
            isisSysStatPartChanges
                Counter32,
            isisSysStatSPFRuns
                Counter32,
            isisSysStatLSPErrors
                Counter32
        }

    isisSysStatLevel OBJECT-TYPE
        SYNTAX IsisISLevel
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level that this entry describes."
    ::= { isisSystemCounterEntry 1 }

    isisSysStatCorrLSPs OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of corrupted in-memory 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.

             LSPs received from the wire with parse errors
             are counted by isisSysStatLSPErrors."
        REFERENCE "{ISIS.aoi corruptedLSPsDetected (19)}"
    ::= { isisSystemCounterEntry 2 }

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

    isisSysStatAuthFails OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of frames with authentication key failures"



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        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of authentication key failures recognized by this
             Intermediate System."
    ::= { isisSystemCounterEntry 4 }

    isisSysStatLSPDbaseOloads OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times the LSP 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 }

    isisSysStatOwnLSPPurges OBJECT-TYPE



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        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 "Number of frames with ID length mismatches"
        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 }

    isisSysStatPartChanges OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Partition changes."
    ::= { isisSystemCounterEntry 11 }

    isisSysStatSPFRuns OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of times we ran SPF at this level."
    ::= { isisSystemCounterEntry 12 }

    isisSysStatLSPErrors OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of frames with errors that we have received"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Number of LSPs with errors we have received."
    ::= { isisSystemCounterEntry 13 }

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




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    isisCircuitCounterTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisCircuitCounterEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Circuit specific counters for this
             Intermediate System."
    ::= { isisCounters 2 }

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

    IsisCircuitCounterEntry ::= SEQUENCE {
          isisCircuitType
              INTEGER,
          isisCircAdjChanges
              Counter32,
          isisCircNumAdj
              Unsigned32,
          isisCircInitFails
              Counter32,
          isisCircRejAdjs
              Counter32,
          isisCircIDFieldLenMismatches
              Counter32,
          isisCircMaxAreaAddrMismatches
              Counter32,
          isisCircAuthTypeFails
              Counter32,
          isisCircAuthFails
              Counter32,
          isisCircLANDesISChanges
              Counter32
       }

    isisCircuitType OBJECT-TYPE
        SYNTAX INTEGER
            {
                lanlevel1(1),
                lanlevel2(2),



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                p2pcircuit(3)
            }
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "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 }

    isisCircNumAdj OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of adjacencies on this circuit."
        REFERENCE "{ISIS.aoi changesInAdjacencyState (40)}"
    ::= { isisCircuitCounterEntry 3 }

    isisCircInitFails OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of times initialization of this circuit has
             failed.  This counts events such as PPP NCP failures.
             Failures to form an adjacency are counted by
             isisCircRejAdjs."
    ::= { isisCircuitCounterEntry 4 }

    isisCircRejAdjs OBJECT-TYPE
        SYNTAX Counter32
        MAX-ACCESS read-only
        STATUS current



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        DESCRIPTION
            "The number of times an adjacency has been rejected on
             this circuit."
        REFERENCE "{ISIS.aoi rejectedAdjacencies (42)}"
    ::= { isisCircuitCounterEntry 5 }

    isisCircIDFieldLenMismatches OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of frames with ID field length mismatch"
        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."
        REFERENCE "{ISIS.aoi iDFieldLengthMismatches (25)}"
    ::= { isisCircuitCounterEntry 6 }

    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 7 }

    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 8 }

    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 9 }



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    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 10 }

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

    isisPacketCounterTable OBJECT-TYPE
        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 { isisCircIndex,
                isisPacketCountLevel,
                isisPacketCountDirection }
    ::= { isisPacketCounterTable 1 }

    IsisPacketCounterEntry ::=
        SEQUENCE {
            isisPacketCountLevel
          IsisISLevel,
            isisPacketCountDirection
                INTEGER,
            isisPacketCountIIHello
                Counter32,
            isisPacketCountISHello
                Counter32,
            isisPacketCountESHello
                Counter32,
            isisPacketCountLSP
                Counter32,



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            isisPacketCountCSNP
                Counter32,
            isisPacketCountPSNP
                Counter32,
            isisPacketCountUnknown
                Counter32
    }

    isisPacketCountLevel OBJECT-TYPE
        SYNTAX IsisISLevel
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The level at which these PDU counts have been collected."
    ::= { isisPacketCounterEntry 1 }

    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 }

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

             Point-to-Point IIH PDUs are counted at
             the lowest enabled level: at L1 on L1 or L1L2 circuits,
             and at L2 otherwise."
        REFERENCE "{ISIS.aoi iSISControlPDUsSent (43)}"
    ::= { isisPacketCounterEntry 3 }

    isisPacketCountISHello OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of ES-IS frames seen in this direction at this level."
        MAX-ACCESS read-only
        STATUS current



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        DESCRIPTION
            "The number of ES-IS Hello PDUs seen in this
             direction.  ISH PDUs are counted at the
             lowest enabled level: at L1 on L1 or L1L2
             circuits, and at L2 otherwise."
    ::= { isisPacketCounterEntry 4 }

    isisPacketCountESHello OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of ES Hello frames seen in this direction at this level"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of ES Hello PDUs seen in this
             direction.  ESH PDUs are counted at the
             lowest enabled level: at L1 on L1 or L1L2
             circuits, and at L2 otherwise."
    ::= { isisPacketCounterEntry 5 }

    isisPacketCountLSP OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of IS-IS LSP frames seen in this direction at this level"
        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 6 }

    isisPacketCountCSNP OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of IS-IS CSNP frames seen in this direction at this level"
        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 7 }

    isisPacketCountPSNP OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of IS-IS PSNP frames seen in this direction at this level"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of IS-IS PSNPs seen in this



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             direction at this level."
        REFERENCE "{ISIS.aoi iSISControlPDUsSent (43)}"
    ::= { isisPacketCounterEntry 8 }

    isisPacketCountUnknown OBJECT-TYPE
        SYNTAX Counter32
        UNITS "Number of unknown IS-IS frames seen at this level"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of unknown IS-IS PDUs seen
             at this level."
        REFERENCE "{ISIS.aoi iSISControlPDUsSent (43)}"
    ::= { isisPacketCounterEntry 9 }

-- 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 { isisCircIndex,
                isisISAdjIndex }
    ::= { isisISAdjTable 1 }

    IsisISAdjEntry ::=
        SEQUENCE {
            isisISAdjIndex
                Unsigned32,
            isisISAdjState
                INTEGER,
            isisISAdj3WayState
                INTEGER,
            isisISAdjNeighSNPAAddress



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                IsisOSINSAddress,
            isisISAdjNeighSysType
                INTEGER,
            isisISAdjNeighSysID
                IsisSystemID,
            isisISAdjNbrExtendedCircID
                Unsigned32,
            isisISAdjUsage
                INTEGER,
            isisISAdjHoldTimer
                Unsigned16TC,
            isisISAdjNeighPriority
                IsisISPriority,
            isisISAdjLastUpTime
                Unsigned32
      }

    isisISAdjIndex OBJECT-TYPE
        SYNTAX Unsigned32(1..4294967295)
        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
             automatically assigned by the system when the adjacency
             is created."
    ::= { isisISAdjEntry 1 }

    isisISAdjState OBJECT-TYPE
        SYNTAX INTEGER
            {
                 down (1),
                 initializing (2),
                 up (3),
                 failed(4)
            }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The state of the adjacency."
        REFERENCE "{ISIS.aoi adjacencyState (78)}"
    ::= { isisISAdjEntry 2 }

    isisISAdj3WayState OBJECT-TYPE
        SYNTAX INTEGER
            {
                 up (0),
                 initializing (1),



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                 down (2),
                 failed (3)
            }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The 3Way state of the adjacency.  These are picked
             to match the historical on-the-wire representation
             of the 3Way state, and are not intended to match
             isisISAdjState."
        REFERENCE "{ RFC 3373 }"
    ::= { isisISAdjEntry 3 }

    isisISAdjNeighSNPAAddress OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The SNPA address of the neighboring system."
        REFERENCE "{ISIS.aoi neighbourSNPAAddress (79)}"
    ::= { isisISAdjEntry 4 }

    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 5 }

    isisISAdjNeighSysID OBJECT-TYPE
        SYNTAX IsisSystemID
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The system ID of the neighboring Intermediate
             System."
        REFERENCE "{ISIS.aoi neighbourSystemIds (83)}"
    ::= { isisISAdjEntry 6 }

    isisISAdjNbrExtendedCircID OBJECT-TYPE



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        SYNTAX Unsigned32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The 4 byte Extended Circuit ID learned from the
             Neighbor during 3-way handshake, or 0."
    ::= { isisISAdjEntry 7 }

    isisISAdjUsage OBJECT-TYPE
        SYNTAX INTEGER
            {
                level1(1),
                level2(2),
                level1and2(3)
            }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "How is the adjacency used?  On a point-to-point link,
             this might be level1and2, but on a LAN, the usage will
             be level1 on the adjacency between peers at L1,
             and level2 for the adjacency between peers at L2."
        REFERENCE "{ISIS.aoi adjacencyUsage (82)}"
    ::= { isisISAdjEntry 8 }

    isisISAdjHoldTimer OBJECT-TYPE
        SYNTAX Unsigned16TC (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 9 }

    isisISAdjNeighPriority OBJECT-TYPE
        SYNTAX IsisISPriority
        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 10 }

    isisISAdjLastUpTime OBJECT-TYPE



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        SYNTAX Unsigned32
        UNITS "Seconds since startup when Adjacency was last up"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The number of seconds since system startup when
             the adjacency most recently entered the state 'up'.
             Holds 0 if the adjacency has never been in state 'up'."
    ::= { isisISAdjEntry 11 }

-- 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 { isisCircIndex,
                isisISAdjIndex,
                isisISAdjAreaAddrIndex }
    ::= { isisISAdjAreaAddrTable 1 }

    IsisISAdjAreaAddrEntry ::=
        SEQUENCE {
            isisISAdjAreaAddrIndex
                Unsigned32,
            isisISAdjAreaAddress
                IsisOSINSAddress
            }

    isisISAdjAreaAddrIndex OBJECT-TYPE



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        SYNTAX Unsigned32(1..4294967295)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An index for the areas associated with one neighbor.
             This provides a simple way to walk the table."
    ::= { isisISAdjAreaAddrEntry 1 }

    isisISAdjAreaAddress OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        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 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 { isisCircIndex,
                isisISAdjIndex,
                isisISAdjIPAddrIndex
                }
    ::= { isisISAdjIPAddrTable 1 }

    IsisISAdjIPAddrEntry ::=
        SEQUENCE {



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            isisISAdjIPAddrIndex
                Unsigned32,
            isisISAdjIPAddrType
                 InetAddressType,
            isisISAdjIPAddrAddress
                InetAddress
        }

    isisISAdjIPAddrIndex OBJECT-TYPE
        SYNTAX Unsigned32(1..4294967295)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An index to this table which identifies the IP addresses
             to which this entry belongs."
    ::= { isisISAdjIPAddrEntry 1 }

    isisISAdjIPAddrType 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.  An implementation is
             only required to support IPv4 and IPv6 addresses."
    ::= { isisISAdjIPAddrEntry 2 }

    isisISAdjIPAddrAddress 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 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
        DESCRIPTION
            "This table contains the set of protocols supported by



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             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 {  isisCircIndex,
                 isisISAdjIndex,
                 isisISAdjProtSuppProtocol }
    ::= { isisISAdjProtSuppTable 1 }

    IsisISAdjProtSuppEntry ::=
        SEQUENCE {
            isisISAdjProtSuppProtocol
                IsisSupportedProtocol
        }

    isisISAdjProtSuppProtocol OBJECT-TYPE
        SYNTAX IsisSupportedProtocol
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "One supported protocol as reported in IIH PDUs received
             from the neighbor."
    ::= { isisISAdjProtSuppEntry 1 }

-- The Reachable Address Group
--
-- The Reachable Address Group is optional.
-- 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 }



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    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 { isisCircIndex,
                isisRAIndex }
    ::= { isisRATable 1 }

    IsisRAEntry ::=
        SEQUENCE {
            isisRAIndex
                Unsigned32,
            isisRAExistState
                RowStatus,
            isisRAAdminState
                AdminState,
            isisRAAddrPrefix
                IsisOSINSAddress,
            isisRAMapType
                INTEGER,
            isisRAMetric
                IsisDefaultMetric,
            isisRAMetricType
                IsisMetricType,
            isisRASNPAAddress
                IsisOSINSAddress,
            isisRASNPAMask
                IsisOSINSAddress,
            isisRASNPAPrefix
                IsisOSINSAddress,
            isisRAType
                INTEGER
        }

    isisRAIndex OBJECT-TYPE
        SYNTAX Unsigned32(1..4294967295)
        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 }




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    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.  Support
             for createAndWait and notInService is not required."
    ::= { 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 IsisOSINSAddress
        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)}"
    ::= { 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



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             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 }

    isisRAMetric OBJECT-TYPE
        SYNTAX IsisDefaultMetric
        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 }

    isisRAMetricType OBJECT-TYPE
        SYNTAX IsisMetricType
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION



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            "Indicates whether the metric is internal or
             external. This object follows the ManualOrAutomatic
             behavior."
        REFERENCE "{ISIS.aoi DefaultMetricType (103)}"
        DEFVAL { internal }
    ::= { isisRAEntry 7 }

    isisRASNPAAddress OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        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
        DEFVAL { ''H }
    ::= { isisRAEntry 8 }

    isisRASNPAMask OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        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 9 }

    isisRASNPAPrefix OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        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



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             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 10 }

    isisRAType OBJECT-TYPE
        SYNTAX INTEGER
            {
                manual (1),
                automatic (2)
            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "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 11 }


-- 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



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            "Each entry defines an IP Reachable Address to a network,
             subnetwork or host.

             Each IP Reachable Address may have multiple entries in the
             table, one for each equal cost path to the reachable address."
        INDEX {  isisSysLevelIndex,
                 isisIPRADestType,
                 isisIPRADest,
                 isisIPRADestPrefixLen,
                 isisIPRANextHopIndex }
    ::= { isisIPRATable 1 }

    IsisIPRAEntry ::=
        SEQUENCE {
            isisIPRADestType
                InetAddressType,
            isisIPRADest
                InetAddress,
            isisIPRADestPrefixLen
                InetAddressPrefixLength,
            isisIPRANextHopIndex
                Unsigned32,
            isisIPRANextHopType
                InetAddressType,
            isisIPRANextHop
                InetAddress,
            isisIPRAType
                INTEGER,
            isisIPRAExistState
                RowStatus,
            isisIPRAAdminState
                AdminState,
            isisIPRAMetric
                IsisDefaultMetric,
            isisIPRAMetricType
                IsisMetricType,
            isisIPRAFullMetric
                IsisFullMetric,
            isisIPRASNPAAddress
                IsisOSINSAddress,
            isisIPRASourceType
                INTEGER
        }

    isisIPRADestType OBJECT-TYPE
        SYNTAX InetAddressType
        MAX-ACCESS not-accessible
        STATUS current



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        DESCRIPTION
            "The type of this IP Reachable Address.  This object
             follows the ManualOrAutomatic behavior.  An
             implementation is only required to support
             IPv4 and IPv6 addresses."
    ::= { isisIPRAEntry 1 }

    isisIPRADest OBJECT-TYPE
        SYNTAX InetAddress (SIZE(4|16))
        MAX-ACCESS not-accessible
        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 2 }

    isisIPRADestPrefixLen OBJECT-TYPE
        SYNTAX InetAddressPrefixLength (0..128)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The length of the IP Netmask for Reachability Address.
             This object follows the ManualOrAutomatic behavior."
    ::= { isisIPRAEntry 3 }

    isisIPRANextHopIndex OBJECT-TYPE
        SYNTAX Unsigned32(1..4294967295)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Index of next hop.  Used when there are multiple Equal
             Cost Multipath alternatives for the same destination."
    ::= { isisIPRAEntry 4 }

    isisIPRANextHopType OBJECT-TYPE
        SYNTAX InetAddressType
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The type of the IP next hop address.  An
             implementation is only required to support
             IPv4 and IPv6 addresses."
    ::= { isisIPRAEntry 5 }

    isisIPRANextHop OBJECT-TYPE
        SYNTAX InetAddress (SIZE(4|16))



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        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The IP next hop to this destination."
    ::= { isisIPRAEntry 6 }

    isisIPRAType OBJECT-TYPE
        SYNTAX INTEGER
            {
                manual (1),
                automatic (2)
            }
        MAX-ACCESS read-create
        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 7 }

    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.  Support for createAndWait and
             notInService is not required."
    ::= { isisIPRAEntry 8 }

    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 9 }

    isisIPRAMetric OBJECT-TYPE
        SYNTAX IsisDefaultMetric
        MAX-ACCESS read-create
        STATUS current



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        DESCRIPTION
            "The metric value for reaching the specified
             destination over this circuit. This object follows the
             ManualOrAutomatic behavior."
        DEFVAL { 10 }
    ::= { isisIPRAEntry 10 }

    isisIPRAMetricType OBJECT-TYPE
        SYNTAX IsisMetricType
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Indicates whether the metric is internal or
             external. This object follows the ManualOrAutomatic
             behavior."
        DEFVAL { internal }
    ::= { isisIPRAEntry 11 }

    isisIPRAFullMetric OBJECT-TYPE
        SYNTAX IsisFullMetric
        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 12 }

    isisIPRASNPAAddress OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        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 13 }

    isisIPRASourceType OBJECT-TYPE
        SYNTAX INTEGER
            {
                static (1),
                direct (2),
                ospfv2 (3),
                ospfv3 (4),



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                isis   (5),
                rip    (6),
                igrp   (7),
                eigrp  (8),
                bgp    (9),
                other (10)
            }
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The origin of this route."
    ::= { isisIPRAEntry 14 }

-- The LSP Database Table
--
-- The first table provides Summary Information about LSPs
-- The next table provides a complete record

    isisLSPSummaryTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisLSPSummaryEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The table of LSP Headers."
    ::= { isisLSPDataBase 1 }

    isisLSPSummaryEntry OBJECT-TYPE
        SYNTAX IsisLSPSummaryEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry provides a summary describing an
             LSP currently stored in the system."
        INDEX {  isisLSPLevel,
                 isisLSPID }
    ::= { isisLSPSummaryTable 1 }

    IsisLSPSummaryEntry ::=
        SEQUENCE {
            isisLSPLevel
                IsisISLevel,
            isisLSPID
                IsisLinkStatePDUID,
            isisLSPSeq
                Unsigned32,
            isisLSPZeroLife
                TruthValue,
            isisLSPChecksum



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                Unsigned16TC,
            isisLSPLifetimeRemain
                Unsigned16TC,
            isisLSPPDULength
                Unsigned16TC,
            isisLSPAttributes
                Unsigned8TC
        }

    isisLSPLevel OBJECT-TYPE
        SYNTAX IsisISLevel
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "At which level does this LSP appear?"
    ::= { isisLSPSummaryEntry 1 }

    isisLSPID OBJECT-TYPE
        SYNTAX IsisLinkStatePDUID
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The 8 byte LSP ID, consisting of the SystemID,
             Circuit ID, and Fragment Number."
    ::= { isisLSPSummaryEntry 2 }

    isisLSPSeq OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The sequence number for this LSP."
    ::= { isisLSPSummaryEntry 3 }

    isisLSPZeroLife OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Is this LSP being purged by this System?"
    ::= { isisLSPSummaryEntry 4 }

    isisLSPChecksum OBJECT-TYPE
        SYNTAX Unsigned16TC
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The 16 bit Fletcher Checksum."



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    ::= { isisLSPSummaryEntry 5 }

    isisLSPLifetimeRemain OBJECT-TYPE
        SYNTAX Unsigned16TC
        UNITS "seconds"
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The remaining lifetime in seconds for this LSP."
    ::= { isisLSPSummaryEntry 6 }

    isisLSPPDULength OBJECT-TYPE
        SYNTAX Unsigned16TC
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The length of this LSP."
    ::= { isisLSPSummaryEntry 7 }

    isisLSPAttributes OBJECT-TYPE
        SYNTAX Unsigned8TC
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "Flags carried by the LSP."
    ::= { isisLSPSummaryEntry 8 }

-- LSP Table
--
-- The full LSP as a sequence of {Type, Len, Value} tuples
-- Since the underlying LSP may have changed while downloading
-- TLVs, we provide the Sequence number and Checksum for each
-- LSP TLV, so the network manager may verify that they are
-- still working on the same version of the LSP.

    isisLSPTLVTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisLSPTLVEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The table of LSPs in the database."
    ::= { isisLSPDataBase 2 }

    isisLSPTLVEntry OBJECT-TYPE
        SYNTAX IsisLSPTLVEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION



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            "Each entry describes a TLV within
             an LSP current stored in the system."
        INDEX {  isisLSPLevel,
                 isisLSPID,
                 isisLSPTLVIndex }
    ::= { isisLSPTLVTable 1 }

    IsisLSPTLVEntry ::=
        SEQUENCE {
            isisLSPTLVIndex
                Unsigned32,
            isisLSPTLVSeq
                Unsigned32,
            isisLSPTLVChecksum
                Unsigned16TC,
            isisLSPTLVType
                Unsigned8TC,
            isisLSPTLVLen
                Unsigned8TC,
            isisLSPTLVValue
                OCTET STRING
        }

    isisLSPTLVIndex OBJECT-TYPE
        SYNTAX Unsigned32(1..4294967295)
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The index of this TLV in the LSP.  The first TLV has index 1
             and the Nth TLV has an index of N."
    ::= { isisLSPTLVEntry 1 }

    isisLSPTLVSeq OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The sequence number for this LSP."
    ::= { isisLSPTLVEntry 2 }

    isisLSPTLVChecksum OBJECT-TYPE
        SYNTAX Unsigned16TC
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The 16 bit Fletcher Checksum."
    ::= { isisLSPTLVEntry 3 }




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    isisLSPTLVType OBJECT-TYPE
        SYNTAX Unsigned8TC
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The type of this TLV."
    ::= { isisLSPTLVEntry 4 }

    isisLSPTLVLen OBJECT-TYPE
        SYNTAX Unsigned8TC
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The length of this TLV."
    ::= { isisLSPTLVEntry 5 }

    isisLSPTLVValue OBJECT-TYPE
        SYNTAX OCTET STRING (SIZE(0..255))
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "The value of this TLV."
    ::= { isisLSPTLVEntry 6 }


-- The IS-IS Notification Table

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

    isisNotificationEntry OBJECT IDENTIFIER
        ::= { isisNotification 1 }

    isisNotificationSysLevelIndex OBJECT-TYPE
        SYNTAX IsisISLevel
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "The system level for this notification."
    ::= { isisNotificationEntry 1 }

    isisNotificationCircIfIndex OBJECT-TYPE
        SYNTAX Integer32 (1..2147483647)
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "The identifier of this circuit relevant to
             this Notification."



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    ::= { isisNotificationEntry 2 }

    isisPduLspId OBJECT-TYPE
        SYNTAX IsisLinkStatePDUID
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "An Octet String that uniquely identifies
             a Link State PDU."
    ::= { isisNotificationEntry 3 }

    isisPduFragment OBJECT-TYPE
        SYNTAX IsisPDUHeader
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "Holds up to 64 initial bytes of a PDU that
             triggered the notification."
    ::= { isisNotificationEntry 4 }

    isisPduFieldLen OBJECT-TYPE
        SYNTAX Unsigned8TC
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "Holds the System ID length reported in PDU we received."
    ::= { isisNotificationEntry 5 }

    isisPduMaxAreaAddress OBJECT-TYPE
        SYNTAX Unsigned8TC
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "Holds the Max Area Addresses reported in a PDU
             we received."
    ::= { isisNotificationEntry 6 }

    isisPduProtocolVersion OBJECT-TYPE
        SYNTAX Unsigned8TC
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "Holds the Protocol version reported in PDU we received."
    ::= { isisNotificationEntry 7 }


    isisPduLspSize OBJECT-TYPE
        SYNTAX Integer32 (0..2147483647)



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        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "Holds the size of LSP we received that is too
             big to forward."
    ::= { isisNotificationEntry 8 }

    isisPduOriginatingBufferSize OBJECT-TYPE
        SYNTAX Unsigned16TC (0..16000)
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "Holds the size of isisSysLevelOrigLSPBuffSize advertised
             by the peer in the originatingLSPBufferSize TLV.
             If the peer does not advertise this TLV, this
             value is set to 0."
    ::= { isisNotificationEntry 9 }

    isisPduBufferSize OBJECT-TYPE
        SYNTAX Unsigned16TC (0..16000)
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "Holds the size of LSP received from peer."
    ::= { isisNotificationEntry 10 }

    isisPduProtocolsSupported OBJECT-TYPE
        SYNTAX OCTET STRING (SIZE(0..255))
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "The list of protocols supported by an
             adjacent system.  This may be empty."
    ::= { isisNotificationEntry 11 }

    isisAdjState OBJECT-TYPE
        SYNTAX INTEGER
            {
                 down (1),
                 initializing (2),
                 up (3),
                 failed(4)
            }
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "The current state of an adjacency."
    ::= { isisNotificationEntry 12 }



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    isisErrorOffset OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "An offset to a problem in a PDU.  If the problem
             is a malformed TLV, this points to the beginning
             of the TLV.  If the problem is in the header, this
             points to the byte that is suspicious."
    ::= { isisNotificationEntry 13 }

    isisErrorTLVType OBJECT-TYPE
        SYNTAX Unsigned32 (0..255)
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
             "The type for a malformed TLV."
    ::= { isisNotificationEntry 14 }

    isisNotificationAreaAddress OBJECT-TYPE
        SYNTAX IsisOSINSAddress
        MAX-ACCESS accessible-for-notify
        STATUS current
        DESCRIPTION
            "An Area Address."
    ::= { isisNotificationEntry 15 }

-- Type definitions

    isisDatabaseOverload NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisSysLevelState
        }
        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 isisSysStatLSPDbaseOloads."
    ::= { isisNotifications 1 }

    isisManualAddressDrops NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationAreaAddress
        }
        STATUS current
        DESCRIPTION



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            "This notification is generated when one of the
             manual areaAddresses assigned to this system is
             ignored when computing routes.  The object
             isisNotificationAreaAddress describes the area that
             has been dropped.

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

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

    ::= { isisNotifications 2 }

    isisCorruptedLSPDetected NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisPduLspId
        }
        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
             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."

    ::= { isisNotifications 3 }

    isisAttemptToExceedMaxSequence NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisPduLspId
        }
        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.




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

    ::= { isisNotifications 4 }

    isisIDLenMismatch  NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisPduFieldLen,
            isisNotificationCircIfIndex,
            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 on the same circuit."

    ::= { isisNotifications 5 }

    isisMaxAreaAddressesMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisPduMaxAreaAddress,
            isisNotificationCircIfIndex,
            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 the same circuit."

    ::= { isisNotifications 6 }



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

    ::= { isisNotifications 7 }

    isisSequenceNumberSkip NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduLspId
        }
        STATUS current
        DESCRIPTION
            "When we receive an LSP with our 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."

    ::= { isisNotifications 8 }

    isisAuthenticationTypeFailure NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduFragment
        }
        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



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             identify the source of the confusion.

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

    ::= { isisNotifications 9 }

    isisAuthenticationFailure NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduFragment
        }
        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
             PDUs received from the same circuit."

    ::= { isisNotifications 10 }

    isisVersionSkew NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduProtocolVersion,
            isisPduFragment
        }
        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 the same circuit."




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    ::= { isisNotifications 11 }

    isisAreaMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationCircIfIndex,
            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 the same circuit."

    ::= { isisNotifications 12 }

    isisRejectedAdjacency NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduFragment
        }
        STATUS current
        DESCRIPTION
            "A notification sent when we receive a Hello
             PDU from an IS, but do not establish an
             adjacency for some reason.

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

    ::= { isisNotifications 13 }

    isisLSPTooLargeToPropagate NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduLspSize,
            isisPduLspId
        }
        STATUS current



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        DESCRIPTION
            "A notification sent when we attempt to propagate
             an LSP which is larger than the dataLinkBlockSize
             for the circuit.
             This should be an edge-triggered notification.
             We should not send a second notification about
             PDUs received from the same circuit."

    ::= { isisNotifications 14 }

    isisOrigLSPBuffSizeMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduLspId,
            isisPduOriginatingBufferSize,
            isisPduBufferSize
        }
        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 isisSysLevelOrigLSPBuffSize, or when an
             LSP is received containing the supported Buffer Size
             option and the value in the PDU option field does
             not match the local value for isisSysLevelOrigLSPBuffSize.
             We pass up the size from the option field and the
             size of the LSP when one of them exceeds our configuration.

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

    ::= { isisNotifications 15 }

    isisProtocolsSupportedMismatch NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduProtocolsSupported,
            isisPduLspId,
            isisPduFragment
        }
        STATUS current
        DESCRIPTION
            "A notification sent when a non-pseudonode
             segment 0 LSP is received that has no matching
             protocols supported.



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             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 circuit."

    ::= { isisNotifications 16 }

    isisAdjacencyChange NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduLspId,
            isisAdjState
        }
        STATUS current
        DESCRIPTION
            "A notification sent when an adjacency changes
             state, entering or leaving state up.
             The first 6 bytes of the isisPduLspId are the
             SystemID of the adjacent IS.
             The isisAdjState is the new state of the adjacency."

    ::= { isisNotifications 17 }

    isisLSPErrorDetected NOTIFICATION-TYPE
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisPduLspId,
            isisNotificationCircIfIndex,
            isisPduFragment,
            isisErrorOffset,
            isisErrorTLVType
        }
        STATUS current
        DESCRIPTION
            "This notification is generated when we receive
             an LSP with a parse error.  The isisCircIfIndex
             holds in index of the circuit on which the PDU
             arrived.  The isisPduFragment holds start of the LSP,
             and the isisErrorOffset points to the problem.

             If the problem is a malformed TLV, isisErrorOffset
             points to start of the TLV and isisErrorTLVType



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             holds the value of the type.

             If the problem is with the LSP header, isisErrorOffset
             points to the suspicious byte.

             The number of such LSPs is accumulated in
             isisSysStatLSPErrors."

    ::= { isisNotifications 18 }

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

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

-- compliance statements

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

    -- List of all groups, mandatory and optional
    isisAdvancedCompliance MODULE-COMPLIANCE
        STATUS current
        DESCRIPTION
            "The compliance statement for agents that support
             the IS-IS MIB"
        MODULE -- this module
            MANDATORY-GROUPS {
                    isisSystemGroup,
                    isisCircuitGroup,
                    isisISAdjGroup,
                    isisNotificationObjectGroup,
                    isisNotificationGroup,
                    isisISPDUCounterGroup,
                    isisRATableGroup,



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                    isisISIPRADestGroup,
                    isisLSPGroup
        }
    ::= { isisCompliances 2 }

-- MIB Grouping

    isisSystemGroup OBJECT-GROUP
        OBJECTS {
            isisSysVersion,
            isisSysType,
            isisSysID,
            isisSysMaxPathSplits,
            isisSysMaxLSPGenInt,
            isisSysPollESHelloRate,
            isisSysWaitTime,
            isisSysAdminState,
            isisSysL2toL1Leaking,
            isisSysMaxAge,
            isisSysProtSupported,
            isisManAreaAddrExistState,
            isisAreaAddr,
            isisSysLevelOrigLSPBuffSize,
            isisSysLevelMinLSPGenInt,
            isisSysLevelState,
            isisSysLevelSetOverload,
            isisSysLevelSetOverloadUntil,
            isisSysLevelMetricStyle,
            isisSysLevelSPFConsiders,
            isisSysLevelTEEnabled,
            isisSysReceiveLSPBufferSize,
            isisSummAddrExistState,
            isisSummAddrMetric,
            isisSummAddrFullMetric,
            isisRedistributeAddrExistState,
            isisRouterHostName,
            isisRouterID,
            isisSysStatCorrLSPs,
            isisSysStatLSPDbaseOloads,
            isisSysStatManAddrDropFromAreas,
            isisSysStatAttmptToExMaxSeqNums,
            isisSysStatSeqNumSkips,
            isisSysStatOwnLSPPurges,
            isisSysStatIDFieldLenMismatches,
            isisSysStatPartChanges,
            isisSysStatSPFRuns,
            isisSysStatAuthTypeFails,
            isisSysStatAuthFails,



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            isisSysStatLSPErrors
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to manage an
             IS-IS router."
    ::= { isisGroups 1 }

    isisCircuitGroup OBJECT-GROUP
        OBJECTS {
            isisNextCircIndex,
            isisCircIfSubSelector,
            isisCircAdminState,
            isisCircExistState,
            isisCircType,
            isisCircExtDomain,
            isisCircAdjChanges,
            isisCircNumAdj,
            isisCircInitFails,
            isisCircRejAdjs,
            isisCircIDFieldLenMismatches,
            isisCircMaxAreaAddrMismatches,
            isisCircAuthTypeFails,
            isisCircAuthFails,
            isisCircLANDesISChanges,
            isisCircLevel,
            isisCircPassiveCircuit,
            isisCircMeshGroupEnabled,
            isisCircMeshGroup,
            isisCircSmallHellos,
            isisCircLastUpTime,
            isisCirc3WayEnabled,
            isisCircExtendedCircID,
            isisCircIfIndex,
            isisCircLevelMetric,
            isisCircLevelWideMetric,
            isisCircLevelISPriority,
            isisCircLevelIDOctet,
            isisCircLevelID,
            isisCircLevelDesIS,
            isisCircLevelHelloMultiplier,
            isisCircLevelHelloTimer,
            isisCircLevelDRHelloTimer,
            isisCircLevelLSPThrottle,
            isisCircLevelMinLSPRetransInt,
            isisCircLevelCSNPInterval,
            isisCircLevelPartSNPInterval
        }



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        STATUS current
        DESCRIPTION
            "The collection of objects used to describe in
             IS-IS Circuit."
    ::= { isisGroups 2 }


    isisISAdjGroup OBJECT-GROUP
        OBJECTS {
            isisISAdjState,
            isisISAdj3WayState,
            isisISAdjNeighSNPAAddress,
            isisISAdjNeighSysType,
            isisISAdjNeighSysID,
            isisISAdjNbrExtendedCircID,
            isisISAdjUsage,
            isisISAdjHoldTimer,
            isisISAdjNeighPriority,
            isisISAdjLastUpTime,
            isisISAdjAreaAddress,
            isisISAdjIPAddrType,
            isisISAdjIPAddrAddress,
            isisISAdjProtSuppProtocol
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to manage an
             IS-IS Adjacency."
    ::= { isisGroups 3 }


    isisNotificationObjectGroup OBJECT-GROUP
        OBJECTS {
            isisNotificationSysLevelIndex,
            isisNotificationCircIfIndex,
            isisPduLspId,
            isisPduFragment,
            isisPduFieldLen,
            isisPduMaxAreaAddress,
            isisPduProtocolVersion,
            isisPduLspSize,
            isisPduOriginatingBufferSize,
            isisPduBufferSize,
            isisPduProtocolsSupported,
            isisAdjState,
            isisErrorOffset,
            isisErrorTLVType,
            isisNotificationAreaAddress



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        }
        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,
            isisOrigLSPBuffSizeMismatch,
            isisProtocolsSupportedMismatch,
            isisAdjacencyChange,
            isisLSPErrorDetected
        }
        STATUS current
        DESCRIPTION
            "The collections of notifications sent by an IS."
    ::= { isisGroups 5 }


    isisISPDUCounterGroup OBJECT-GROUP
        OBJECTS {
            isisPacketCountIIHello,
            isisPacketCountISHello,
            isisPacketCountESHello,
            isisPacketCountLSP,
            isisPacketCountCSNP,
            isisPacketCountPSNP,
            isisPacketCountUnknown
        }
        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,
            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 {
            isisIPRANextHopType,
            isisIPRANextHop,
            isisIPRAType,
            isisIPRAExistState,
            isisIPRAAdminState,
            isisIPRAMetric,
            isisIPRAFullMetric,
            isisIPRAMetricType,
            isisIPRASNPAAddress,
            isisIPRASourceType
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to manage configured
             IP addresses."
    ::= { isisGroups 8 }

    isisLSPGroup OBJECT-GROUP
        OBJECTS {
            isisLSPSeq,
            isisLSPZeroLife,
            isisLSPChecksum,
            isisLSPLifetimeRemain,
            isisLSPPDULength,
            isisLSPAttributes,
            isisLSPTLVSeq,



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            isisLSPTLVChecksum,
            isisLSPTLVType,
            isisLSPTLVLen,
            isisLSPTLVValue
        }
        STATUS current
        DESCRIPTION
            "The collections of objects used to observe the LSP
             Data Base."
    ::= { isisGroups 9 }

END



4. 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
   then.

   We would like to thank the following individuals for constructive and
   valuable comments: Neal Castagnoli, Ken Chapman, Joan Cucchiara,
   Satish Dattatri, Nagi Jonnala, Shamik Ganguly, Les Ginsberg, Don
   Goodspeed, Jeff Gross, Jim Halpin, Jon Harrison, Dimitri Haskin,
   Peter Higginson, Laura Liu, Gavin McPherson, Kay Noguchi, Serge
   Maskalik, Jeff Pickering, Swaminatha Ramalingam, Aravind Ravikumar,
   Juergen Schoenwaelder, Koen Vermeulen, Hans De Vleeschouwer, Bert
   Wijnen, and Bingzhang Zhao.


5. 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.  Since the MIB controls a device which routes
   packets, there are very few writable attributes that do not have
   negative side effects on network operations.

   Therefore, authentication of received SNMP requests and controlled



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   access to management information should be employed in such
   environments.

   SNMP versions prior to SNMPv3 did not include adequate security.
   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 module.

   It is RECOMMENDED that implementers consider the security features as
   provided by the SNMPv3 framework (see [RFC3410], section 8),
   including full support for the SNMPv3 cryptographic mechanisms (for
   authentication and privacy).

   Further, deployment of SNMP versions prior to SNMPv3 is NOT
   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to
   enable cryptographic security.  It is then a customer/operator
   responsibility to ensure that the SNMP entity giving access to an
   instance of this MIB module 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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6. Normative 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.


   [RFC1229] K. McCloghrie, "Extensions to the Generic-Interface MIB",
        RFC 1229, May 1991.


   Baker, F., Chan, K., and A. Smith , "Management Information Base for
        the Differentiated Services Architecture", FRC 3289, May 2002.


   [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.



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   [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,
        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.





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   [RFC3289] Baker, F., Chan, K., and A. Smith , "Management Information
        Base for the Differentiated Services Architecture", FRC 3289,
        May 2002.


   [RFC3291] Daniele, M.,Haberman, B., Routhier, S., and J.
        Schoenwaelder, "Textual Conventions for Internet Network
        Addresses", RFC 3291.











































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7. Informative References

   Case, J., Mundy, R., Partain, D. and B. Stewart, Introduction and
        Applicability Statements for Internet-Standard Management
        Framework, RFC 3410, December 2002.


8. Authors' Address


   Jeff Parker
   Department of Computer Science
   Middlebury College,
   Middlebury, Vermont 05753

   email: jparker at world dot std dot com


9. Full Copyright Statement


   Copyright (C) The Internet Society (2005).  This document is subject
   to the rights, licenses and restrictions contained in BCP 78, and
   except as set forth therein, the authors retain all their rights.

   This document and the information contained herein are provided on an
   "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
   OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
   ENGINEERING TASK FORCE DISCLAIM 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.


10. Intellectual Property


   The IETF takes no position regarding the validity or scope of any
   Intellectual Property Rights or other rights that might be claimed to
   pertain to the implementation or use of the technology described in
   this document or the extent to which any license under such rights
   might or might not be available; nor does it represent that it has
   made any independent effort to identify any such rights.  Information
   on the procedures with respect to rights in RFC documents can be
   found in BCP 78 and BCP 79.

   Copies of IPR disclosures made to the IETF Secretariat and any
   assurances of licenses to be made available, or the result of an



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   attempt made to obtain a general license or permission for the use of
   such proprietary rights by implementers or users of this
   specification can be obtained from the IETF on-line IPR repository at
   http://www.ietf.org/ipr.

   The IETF invites any interested party to bring to its attention any
   copyrights, patents or patent applications, or other proprietary
   rights that may cover technology that may be required to implement
   this standard.  Please address the information to the IETF at ietf-
   ipr@ietf.org.









































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