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RFC 4444

 
 
 

Management Information Base for Intermediate System to Intermediate System (IS-IS)

Part 2 of 4, p. 6 to 35
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4.  Definition of IS-IS MIB

ISIS-MIB DEFINITIONS ::= BEGIN
     IMPORTS
        TEXTUAL-CONVENTION, RowStatus, TruthValue, TimeStamp
                FROM SNMPv2-TC               -- RFC2579
        MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
            Unsigned32, Counter32, mib-2
                FROM SNMPv2-SMI              -- RFC2578
        MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
                FROM SNMPv2-CONF             -- RFC2580
        SnmpAdminString
                FROM SNMP-FRAMEWORK-MIB      -- RFC2571
        IndexInteger, IndexIntegerNextFree
                FROM DIFFSERV-MIB            -- RFC3289
        InterfaceIndex
                FROM IF-MIB                  -- RFC2863
        InetAddressType, InetAddress, InetAddressPrefixLength
                FROM INET-ADDRESS-MIB;       -- RFC3291

    isisMIB MODULE-IDENTITY
        LAST-UPDATED "200604040000Z" -- April 4, 2006, midnight
        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
             jeffp at middlbury 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.

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

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             Copyright (C) The Internet Society (2006).  This version
             of this MIB module is part of RFC 4444; see the RFC
             itself for full legal notices."

        REVISION "200604040000Z" -- April 4, 2006, midnight

        DESCRIPTION
            "Initial version, published as RFC 4444."
    ::= { mib-2 138 }

-- 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 }

-- 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 }

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-- 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
            "The ID for an Intermediate System.  This should
             be unique within a network, and is included
             in all PDUs originated by an Intermediate System.
             The protocol does not place any meanings upon
             the bits, other than using ordering to break
             ties in electing a Designated IS on a LAN."
        REFERENCE "{ISIS.aoi systemId (119)}"
        SYNTAX OCTET STRING (SIZE(6))

    IsisLinkStatePDUID ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "The 8-byte Link State PDU (LSP) ID,
             consisting of the 6-byte SystemID of the
             originating IS; a one-byte PseudoNode ID,
             which is 0 unless the LSP represents the
             topology of a LAN; and a one-byte LSP
             fragment number that is issued in sequence,
             starting with 0.  Non-zero PseudoNode IDs
             need to be unique to the IS but need not
             match the IfIndex."
        REFERENCE "{See section 9.8 of ISO 10589}"
        SYNTAX OCTET STRING (SIZE(8))

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

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

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        STATUS current
        DESCRIPTION
            "Integer sub-range for maximum LSP size."
        SYNTAX Unsigned32 (512..16000)

    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."
        REFERENCE "{See section 5.3.1 of RFC 1195}"
        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."
        REFERENCE "{See section 7.2.2 of ISO 10589}"
        SYNTAX Unsigned32 (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."

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        REFERENCE "{See section 3 of RFC 3784}"
        SYNTAX Unsigned32 (0..16777215)

    IsisFullMetric ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"
        STATUS current
        DESCRIPTION
            "Full metric for IP Routes.  Traffic Engineering extensions
             provide 32-bit metrics."
        REFERENCE "{See section 4 of RFC 3784}"
        SYNTAX Unsigned32

    IsisMetricType ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Is this an Internal or External Metric?"
        REFERENCE "{See section 7.2.2 of ISO 10589}"
        SYNTAX INTEGER
            {
                internal(1),
                external(2)
            }

    IsisMetricStyle ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Do we use RFC 1195 style metrics or wide metrics?"
        REFERENCE "{See section 5 of RFC 3787}"
        SYNTAX INTEGER
            {
                narrow(1),
                wide(2),
                both(3)
            }

    IsisISLevel ::= TEXTUAL-CONVENTION
        STATUS current
        DESCRIPTION
            "Identifies a level."
        REFERENCE "{See definitions 3.6.1 and 3.6.11 of ISO 10589}"
        SYNTAX INTEGER
            {
                area(1),        -- L1
                domain(2)       -- L2
            }

    IsisLevel ::= TEXTUAL-CONVENTION
        STATUS current

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        DESCRIPTION
            "Identifies one or more levels."
        REFERENCE "{See definitions 3.6.1 and 3.6.11 of ISO 10589}"
        SYNTAX INTEGER
            {
                level1(1),
                level2(2),
                level1and2(3)
            }

    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."
        REFERENCE "{See section 7.2.7 of ISO 10589}"
        SYNTAX OCTET STRING (SIZE(0|7))

    IsisISPriority ::= TEXTUAL-CONVENTION
        DISPLAY-HINT "d"
        STATUS current
        DESCRIPTION
            "Integer sub-range for IS-IS priority."
        REFERENCE "{See section 9.5 of ISO 10589}"
        SYNTAX Unsigned32 (0..127)

    IsisUnsigned16TC ::= 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)

    IsisUnsigned8TC ::= 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)

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-- Behavior Definitions

-- ResettingTimer behavior definition
--

-- "This behavior applies to objects that specify the interval
-- between events in the operation of the protocol state machine.
-- If the value of such an 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 that 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 behavior applies to objects that may not be modified
-- while the corresponding table row's variable of type
-- IsisAdminState is in state on."

-- ManualOrAutomatic behavior definition
-- "This behavior applies to objects that are read-write
-- if the object was created manually.  Objects that were
-- created automatically that have this behavior are
-- read-only.

    isisSysObject  OBJECT IDENTIFIER ::= { isisSystem 1 }

    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 }

    isisSysLevelType OBJECT-TYPE
        SYNTAX IsisLevel

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        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.

             Configured values MUST survive an agent reboot."
        REFERENCE "{ISIS.aoi iSType (2)}"
        DEFVAL { level1and2 }
    ::= { 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.

             Configured values MUST survive an agent reboot."
        REFERENCE "{ISIS.aoi systemId (119)}"
    ::= { isisSysObject 3 }

    isisSysMaxPathSplits OBJECT-TYPE
        SYNTAX Unsigned32 (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.

             Configured values MUST survive an agent reboot."
        REFERENCE "{ISIS.aoi maximumPathSplits (3)}"
        DEFVAL { 2 }
    ::= { isisSysObject 4 }

    isisSysMaxLSPGenInt OBJECT-TYPE
        SYNTAX Unsigned32 (1..65235)

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        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.

             Configured values MUST survive an agent reboot."
        REFERENCE "{ISIS.aoi maximumLSPGenerationInterval (6)}"
        DEFVAL { 900 }
    ::= { isisSysObject 5 }

    isisSysPollESHelloRate OBJECT-TYPE
        SYNTAX IsisUnsigned16TC (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.

             Configured values MUST survive an agent reboot."
        REFERENCE "{ISIS.aoi pollESHelloRate (13)}"
        DEFVAL { 50 }
    ::= { isisSysObject 6 }

    isisSysWaitTime OBJECT-TYPE
        SYNTAX IsisUnsigned16TC (1..65535)
        UNITS "seconds"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Number of seconds to delay in state 'waiting' before
             entering the state 'on'.  This object follows the
             ResettingTimer behavior.

             Configured values MUST survive an agent reboot."
        REFERENCE "{ISIS.aoi waitingTime (15)}"
        DEFVAL { 60 }
    ::= { isisSysObject 7 }

    isisSysAdminState OBJECT-TYPE
        SYNTAX IsisAdminState

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        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.

             Configured values MUST survive an agent reboot."
        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.

             Configured values MUST survive an agent reboot."
        DEFVAL { false }
    ::= { isisSysObject 9 }

    isisSysMaxAge OBJECT-TYPE
        SYNTAX IsisUnsigned16TC (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.

             Configured values MUST survive an agent reboot."
        DEFVAL { 1200 }
    ::= { isisSysObject 10 }

    isisSysReceiveLSPBufferSize OBJECT-TYPE
        SYNTAX IsisUnsigned16TC (1492..16000)
        UNITS "bytes"
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "Size of the largest buffer we are designed or
             configured to store.  This should be at least
             as big as the maximum isisSysLevelOrigLSPBuffSize
             supported by the system.

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             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.

             Configured values MUST survive an agent reboot."
        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 }

    isisSysNotificationEnable OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-write
        STATUS current
        DESCRIPTION
            "If this object is set to true(1), then it enables
             the emission of IS-IS Notifications.  If it is
             set to false(2), these notifications are not sent.

             Configured values MUST survive an agent reboot."
        DEFVAL { true }
    ::= { isisSysObject 13 }

-- The Level 1 Manual Area Address Table

    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.

             At least one row in which the value of
             isisManAreaAddrExistState is active must be present.
             The maximum number of rows in this table for

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             which the object isisManAreaAddrExistState has the
             value active is 3.

             An attempt to create more than 3 rows of
             isisManAreaAddrEntry with state 'active' in one
             instance of the IS-IS protocol should
             return inconsistentValue."
        REFERENCE "{ISIS.aoi manualAreaAddresses (10)}"
    ::= { isisSystem 2 }

    isisManAreaAddrEntry OBJECT-TYPE
        SYNTAX IsisManAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "Each entry contains one area address manually configured
             on this system.

             Dynamically created rows MUST survive an agent reboot."
        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.

             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

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            "The state of the isisManAreaAddrEntry.  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.

             A row entry cannot be modified when the value of this
             object is 'active'."
    ::= { isisManAreaAddrEntry 2 }

-- The Level 1 Area Address Table

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

    isisAreaAddrTable OBJECT-TYPE
        SYNTAX SEQUENCE OF IsisAreaAddrEntry
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The union of the sets of area addresses reported in all
             Level 1 LSPs with fragment number zero generated by this
             Intermediate System, or received from other Intermediate
             Systems that 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.

             Dynamically learned rows do not survive an agent reboot."
        INDEX { isisAreaAddr }
    ::= { isisAreaAddrTable 1 }

    IsisAreaAddrEntry ::=
        SEQUENCE {
            isisAreaAddr
                IsisOSINSAddress
            }

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    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
        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 MUST 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.

             Dynamically created rows MUST survive an agent reboot.

             Implementers need to be aware that if the total number
             of elements (octets or sub-identifiers) in
             isisSummAddress and isisSummAddrPrefixLen is too great,
             then OIDs of column instances in this table will have
             more than 128 subidentifiers and cannot be accessed
             using SNMPv1, SNMPv2c, or SNMPv3."
        INDEX { isisSummAddressType,
                isisSummAddress,
                isisSummAddrPrefixLen }

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    ::= { 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."
    ::= { isisSummAddrEntry 1 }

    isisSummAddress OBJECT-TYPE
        SYNTAX InetAddress
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The IP Address value for this summary address.
             The address must not contain any set host bits
             (bits set after the address prefix determined by
             isisSummAddrPrefixLen).

             The type of this address is determined by the value of
             the isisSummAddressType object."
    ::= { isisSummAddrEntry 2 }

    isisSummAddrPrefixLen OBJECT-TYPE
        SYNTAX InetAddressPrefixLength
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The Length of the IP NetMask for this summary address.

             The values for the index objects isisSummAddress and

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             isisSummAddrPrefixLen must be consistent.  When the value
             of isisSummAddress (excluding the zone index, if one
             is present) is x, then the bitwise logical-AND
             of x with the value of the mask formed from the
             corresponding index object isisSummAddrPrefixLen MUST be
             equal to x.  If not, then the index pair is not
             consistent, and an inconsistentName error must be
             returned on SET or CREATE requests."
    ::= { isisSummAddrEntry 3 }

    isisSummAddrExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The existence state of this summary address.  Support
             for 'createAndWait' and 'notInService' is not required.

             A row entry cannot be modified when the value of this
             object is 'active'."
    ::= { 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
             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

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        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 MUST
             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 configured IP summary
             address to manage leaking L2 addresses into L1.

             Dynamically created rows MUST survive an agent reboot.

             Implementers need to be aware that if the total number
             of elements (octets or sub-identifiers) in
             isisRedistributeAddrAddress and
             isisRedistributeAddrPrefixLen is too great, then OIDs
             of column instances in this table will have more than
             128 subidentifiers and cannot be accessed using SNMPv1,
             SNMPv2c, or SNMPv3."
        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."
    ::= { isisRedistributeAddrEntry 1 }

    isisRedistributeAddrAddress OBJECT-TYPE
        SYNTAX InetAddress
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The IP Address value for this summary address.
             The type of this address is determined by the
             value of the isisRedistributeAddrType object.
             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
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "The Length of the IP NetMask for this summary address.

             The values for the index objects
             isisRedistributeAddrAddress and
             isisRedistributeAddrPrefixLen must be consistent.
             When the value of isisRedistributeAddrAddress
             (excluding the zone index, if one is present) is x,
             then the bitwise logical-AND of x with the value of
             the mask formed from the corresponding index object
             isisRedistributeAddrPrefixLen MUST be equal to x.
             If not, then the index pair is not consistent, and an
             inconsistentName error must be returned on SET or
             CREATE requests."

    ::= { isisRedistributeAddrEntry 3 }

    isisRedistributeAddrExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The existence state of this summary address.  Support

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             for createAndWait and notInService is not required.

             A row entry cannot be modified when the value of this
             object is 'active'."
    ::= { 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
            "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.

             Dynamically learned rows do not survive an agent reboot."
        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."

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    ::= { 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
            "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
            "Each row describes variables configured for Area or Domain.

             Configured values MUST survive an agent reboot."
        INDEX { isisSysLevelIndex }

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    ::= { isisSysLevelTable 1 }

    IsisSysLevelEntry ::=
        SEQUENCE {
            isisSysLevelIndex
                IsisISLevel,
            isisSysLevelOrigLSPBuffSize
                IsisLSPBuffSize,
            isisSysLevelMinLSPGenInt
                IsisUnsigned16TC,
            isisSysLevelState
                IsisLevelState,
            isisSysLevelSetOverload
                TruthValue,
            isisSysLevelSetOverloadUntil
                Unsigned32,
            isisSysLevelMetricStyle
                IsisMetricStyle,
            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 IsisUnsigned16TC (1..65535)
        UNITS "seconds"

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        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."
        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
             this level.
             The value 'on' indicates that IS-IS is active at this
             level and is 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 MUST 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
        UNITS "Seconds until clearing manually set Overload Bit"
        MAX-ACCESS read-write
        STATUS current

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        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.

             If isisSysLevelSetOverload is false, the system clears
             the overload bit when isisSysLevelSetOverloadUntil seconds
             have elapsed, if the system has not run out of memory."
    ::= { 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?"
        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

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        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "This object is used to assist a management
             application in creating new rows in the
             isisCircTable.  If it is possible to create
             a new instance of isisCircEntry, then this
             object will contain a non-zero value that
             is not in use as the index of any row in the
             isisCircTable.  The network manager reads the
             value of this object and then (if the
             value read is non-zero) attempts to create
             the corresponding instance of isisCircEntry.
             If the set request fails with the code
             'inconsistentValue', then the process must be
             repeated;  if the set request succeeds, then
             the agent will change the value of this object
             according to an implementation-specific
             algorithm."
    ::= { 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.

    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 configured
             for Integrated IS-IS on this system.

             Dynamically created rows MUST survive an agent reboot."
        INDEX { isisCircIndex }
    ::= { isisCircTable 1 }

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    IsisCircEntry ::=
        SEQUENCE {
            isisCircIndex
                IndexInteger,
            isisCircIfIndex
                InterfaceIndex,
            isisCircAdminState
                IsisAdminState,
            isisCircExistState
                RowStatus,
            isisCircType
                INTEGER,
            isisCircExtDomain
                TruthValue,
            isisCircLevelType
                IsisLevel,
            isisCircPassiveCircuit
                TruthValue,
            isisCircMeshGroupEnabled
                INTEGER,
            isisCircMeshGroup
                Unsigned32,
            isisCircSmallHellos
                TruthValue,
            isisCircLastUpTime
                TimeStamp,
            isisCirc3WayEnabled
                TruthValue,
            isisCircExtendedCircID
                Unsigned32
        }

    isisCircIndex OBJECT-TYPE
        SYNTAX IndexInteger
        MAX-ACCESS not-accessible
        STATUS current
        DESCRIPTION
            "An index used to uniquely identify this circuit.
             When creating a row in this table, the
             isisNextCircIndex object should be retrieved,
             and its value should be specified as the value
             of this index using a SET operation.  A retrieved
             value of zero(0) indicates that no rows can be
             created at this time."
    ::= { isisCircEntry 1 }

    isisCircIfIndex OBJECT-TYPE
        SYNTAX InterfaceIndex

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        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 }

    isisCircAdminState OBJECT-TYPE
        SYNTAX IsisAdminState
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The administrative state of the circuit."
        DEFVAL { off }
    ::= { isisCircEntry 3 }

    isisCircExistState OBJECT-TYPE
        SYNTAX RowStatus
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "The existence state of this circuit.  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.

             A row entry cannot be modified when the value of this
             object is 'active'."
    ::= { isisCircEntry 4 }

    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

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             by the value of isisCircIfIndex."
        REFERENCE "{ISIS.aoi type (33)}"
    ::= { isisCircEntry 5 }

    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 6 }

    isisCircLevelType OBJECT-TYPE
        SYNTAX IsisLevel
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Indicates which type of packets will be sent and
             accepted on this circuit.  The values set will be
             saved, but the values used will be modified by
             the settings of isisSysLevelType.  Thus, if the
             isisSysTpe is level2 and the isisCircLevelType
             for a circuit is level1, the circuit will not send
             or receive IS-IS packets.  This object follows the
             ReplaceOnlyWhileDisabled behavior."
        DEFVAL { level1and2 }
    ::= { isisCircEntry 7 }

    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 8 }

    isisCircMeshGroupEnabled OBJECT-TYPE
        SYNTAX INTEGER
            {
                inactive(1),
                blocked(2),
                set(3)

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            }
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Is this port a member of a mesh group, or is it
             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 9 }

    isisCircMeshGroup OBJECT-TYPE
        SYNTAX Unsigned32
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Circuits in the same mesh group act as a virtual
             multiaccess network.  LSPs seen on one circuit in
             a mesh group will not be flooded to another circuit
             in the same mesh group.  If isisCircMeshGroupEnabled
             is inactive or blocked, this value is ignored."
        REFERENCE "{ RFC 2973 }"
    ::= { isisCircEntry 10 }

    isisCircSmallHellos OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Can we send unpadded hellos on LAN circuits?  False
             means the 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 11 }

    isisCircLastUpTime OBJECT-TYPE
        SYNTAX TimeStamp
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
            "How long the circuit has been enabled, measured in
             hundredths of seconds since the last re-initialization
             of the network management subsystem; 0 if the
             circuit has never been 'on'."

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    ::= { isisCircEntry 12 }

    isisCirc3WayEnabled OBJECT-TYPE
        SYNTAX TruthValue
        MAX-ACCESS read-create
        STATUS current
        DESCRIPTION
            "Is this circuit enabled to run 3Way handshake?"
        DEFVAL { true }
    ::= { isisCircEntry 13 }

    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
             isisCirc3WayEnabled is true, and it must be unique
             across all circuits on this IS."
    ::= { isisCircEntry 14 }

-- 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 configured for Integrated IS-IS on
             this system.

             Configured values MUST survive an agent reboot."
        INDEX { isisCircIndex,
                isisCircLevelIndex }
    ::= { isisCircLevelTable 1 }

    IsisCircLevelEntry ::=

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        SEQUENCE {
            isisCircLevelIndex
                IsisISLevel,
            isisCircLevelMetric
                IsisDefaultMetric,
            isisCircLevelWideMetric
                IsisWideMetric,
            isisCircLevelISPriority
                IsisISPriority,
            isisCircLevelIDOctet
                Unsigned32,
            isisCircLevelID
                IsisCircuitID,
            isisCircLevelDesIS
                IsisCircuitID,
            isisCircLevelHelloMultiplier
                Unsigned32,
            isisCircLevelHelloTimer
                Unsigned32,
            isisCircLevelDRHelloTimer
                Unsigned32,
            isisCircLevelLSPThrottle
                IsisUnsigned16TC,
            isisCircLevelMinLSPRetransInt
                Unsigned32,
            isisCircLevelCSNPInterval
                Unsigned32,
            isisCircLevelPartSNPInterval
                Unsigned32
        }

    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 }


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