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Errata ExistNetwork Working Group J. Parker, Ed.Request for Comments: 4444 Axiowave NetworksCategory: Standards Track April 2006Management Information Base forIntermediate System to Intermediate System (IS-IS)Status of This Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.Copyright Notice Copyright (C) The Internet Society (2006).Abstract This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. Specifically, this document describes a MIB for the Intermediate System to Intermediate System (IS-IS) Routing protocol when it is used to construct routing tables for IP networks.Table of Contents1. The Internet-Standard Management Framework . . . . . . . . . .22. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .23. Conventions . . . . . . . . . . . . . . . . . . . . . . . . .54. Definition of IS-IS MIB. . . . . . . . . . . . . . . . . . . .65. IANA Considerations. . . . . . . . . . . . . . . . . . . . . .966. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .967. Security Considerations. . . . . . . . . . . . . . . . . . . .968. Normative References . . . . . . . . . . . . . . . . . . . . .1019. Informative References . . . . . . . . . . . . . . . . . . . .102Parker Standards Track [Page 1]
RFC 4444 IS-IS MIB April 20061. The Internet-Standard Management Framework For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer tosection 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].2. Overview This document describes a management information base for the Intermediate System to Intermediate System (IS-IS) Routing protocol, as described in ISO 10589 [ISO10589], when it is used to construct routing tables for IP networks, as described inRFC 1195 [RFC1195]. The objects are mainly derived from the Guidelines for Definition of Managed Objects (GDMO) definitions in ISO 10589 and from the GDMO definitions in ISO 10733 [ISO10733]. There are also additional objects for managing the IP-specific functionality of Integrated IS- IS operation. This MIB imports definitions from SNMPv2-TC [RFC2579], SNMPv2-SMI [RFC2578], SNMPv2-CONF [RFC2580], SNMP-FRAMEWORK-MIB [RFC3411], DIFFSERV-MIB [RFC3289], IF-MIB [RFC2863], and INET-ADDRESS-MIB [RFC4001]. See the imports section of the MIB for the specific items imported. This MIB defines some objects to manage Mesh Groups, described in [RFC2973], and a three-way handshake for point-to-point adjacencies, described in [RFC3373]. The IS-IS MIB defines the following objects: System-Wide Attributes - isisSystem This table contains information specific to a single instance of the IS-IS protocol running on a router.Parker Standards Track [Page 2]
RFC 4444 IS-IS MIB April 2006 - isisManAreaAddr This table includes area addresses that are 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 whether 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 Systems in the network. - 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 point-to-point or a broadcast interface in the system. - isisCircLevel This table contains information specific to Level 1 or Level 2 of an interface.Parker Standards Track [Page 3]
RFC 4444 IS-IS MIB April 2006 Counters - isisSystemCounter Counters in the System table, such as number of times we have wrapped 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 IS-IS Protocol PDUs broken down into packet type. Attributes associated with an Adjacency - isisISAdj This table contains information about adjacencies to routers maintained by the protocol. Entries in this table cannot be created by management action: they are established through the Hello protocol. - isisISAdjAreaAddr This table contains the set of Area Addresses of neighboring Intermediate Systems, as reported in IIH PDUs. - isisISAdjIPAddr This table contains the set of IP Addresses of neighboring Intermediate Systems, as reported in received IIH PDUs. - isisISAdjProtSupp This table contains the set of protocols supported by neighboring Intermediate Systems, as reported in received IIH PDUs.Parker Standards Track [Page 4]
RFC 4444 IS-IS MIB April 2006 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 an 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 This table defines attributes that will be included when reporting IS-IS notifications.3. Conventions The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL", when they appear in this document, are to be interpreted as described inBCP 14,RFC 2119 [RFC2119].Parker Standards Track [Page 5]
RFC 4444 IS-IS MIB April 20064. Definition of IS-IS MIBISIS-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 Grouphttp://www.ietf.org/html.charters/isis-charter.htmlisis-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 inRFC 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.Parker Standards Track [Page 6]
RFC 4444 IS-IS MIB April 2006 Copyright (C) The Internet Society (2006). This version of this MIB module is part ofRFC 4444; see the RFC itself for full legal notices." REVISION "200604040000Z" -- April 4, 2006, midnight DESCRIPTION "Initial version, published asRFC 4444." ::= { mib-2 138 }-- Top-level structure of the MIBisisNotifications 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 CircuitisisCirc 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 SystemisisLSPDataBase OBJECT IDENTIFIER ::= { isisObjects 9 }-- Objects included in Notifications.isisNotification OBJECT IDENTIFIER ::= { isisObjects 10 }Parker Standards Track [Page 7]
RFC 4444 IS-IS MIB April 2006-- 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 "{Seesection 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"Parker Standards Track [Page 8]
RFC 4444 IS-IS MIB April 2006 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 "{Seesection 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 "{Seesection 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."Parker Standards Track [Page 9]
RFC 4444 IS-IS MIB April 2006 REFERENCE "{Seesection 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 "{Seesection 4 of RFC 3784}" SYNTAX Unsigned32 IsisMetricType ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Is this an Internal or External Metric?" REFERENCE "{Seesection 7.2.2 of ISO 10589}" SYNTAX INTEGER { internal(1), external(2) } IsisMetricStyle ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Do we useRFC 1195 style metrics or wide metrics?" REFERENCE "{Seesection 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 currentParker Standards Track [Page 10]
RFC 4444 IS-IS MIB April 2006 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 "{Seesection 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 "{Seesection 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)Parker Standards Track [Page 11]
RFC 4444 IS-IS MIB April 2006-- 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 IsisLevelParker Standards Track [Page 12]
RFC 4444 IS-IS MIB April 2006 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)Parker Standards Track [Page 13]
RFC 4444 IS-IS MIB April 2006 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 IsisAdminStateParker Standards Track [Page 14]
RFC 4444 IS-IS MIB April 2006 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.Parker Standards Track [Page 15]
RFC 4444 IS-IS MIB April 2006 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 forParker Standards Track [Page 16]
RFC 4444 IS-IS MIB April 2006 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 DESCRIPTIONParker Standards Track [Page 17]
RFC 4444 IS-IS MIB April 2006 "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 }Parker Standards Track [Page 18]
RFC 4444 IS-IS MIB April 2006 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 }Parker Standards Track [Page 19]
RFC 4444 IS-IS MIB April 2006 ::= { 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 andParker Standards Track [Page 20]
RFC 4444 IS-IS MIB April 2006 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-accessibleParker Standards Track [Page 21]
RFC 4444 IS-IS MIB April 2006 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-TYPEParker Standards Track [Page 22]
RFC 4444 IS-IS MIB April 2006 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. SupportParker Standards Track [Page 23]
RFC 4444 IS-IS MIB April 2006 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."Parker Standards Track [Page 24]
RFC 4444 IS-IS MIB April 2006 ::= { 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 }Parker Standards Track [Page 25]
RFC 4444 IS-IS MIB April 2006 ::= { 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"Parker Standards Track [Page 26]
RFC 4444 IS-IS MIB April 2006 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 currentParker Standards Track [Page 27]
RFC 4444 IS-IS MIB April 2006 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 IndexIntegerNextFreeParker Standards Track [Page 28]
RFC 4444 IS-IS MIB April 2006 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 }Parker Standards Track [Page 29]
RFC 4444 IS-IS MIB April 2006 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 InterfaceIndexParker Standards Track [Page 30]
RFC 4444 IS-IS MIB April 2006 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 definedParker Standards Track [Page 31]
RFC 4444 IS-IS MIB April 2006 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)Parker Standards Track [Page 32]
RFC 4444 IS-IS MIB April 2006 } 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'."Parker Standards Track [Page 33]
RFC 4444 IS-IS MIB April 2006 ::= { 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 ::=Parker Standards Track [Page 34]
RFC 4444 IS-IS MIB April 2006 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 }Parker Standards Track [Page 35]
RFC 4444 IS-IS MIB April 2006 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 the LAN-Designated Intermediate System at this level." REFERENCE "{ISIS.aoi l2IntermediateSystemPriority (73)}" DEFVAL { 64 } ::= { isisCircLevelEntry 4 } isisCircLevelIDOctet OBJECT-TYPE SYNTAX Unsigned32(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.Parker Standards Track [Page 36]
RFC 4444 IS-IS MIB April 2006 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." REFERENCE "{ISIS.aoi l2DesignatedIntermediateSystem (75)}" ::= { isisCircLevelEntry 7 } isisCircLevelHelloMultiplier OBJECT-TYPE SYNTAX Unsigned32 (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 Unsigned32 (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.Parker Standards Track [Page 37]
RFC 4444 IS-IS MIB April 2006 This object follows the ResettingTimer behavior." REFERENCE "{ISIS.aoi iSISHelloTimer (45)}" DEFVAL { 3000 } ::= { isisCircLevelEntry 9 } isisCircLevelDRHelloTimer OBJECT-TYPE SYNTAX Unsigned32 (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 } isisCircLevelLSPThrottle OBJECT-TYPE SYNTAX IsisUnsigned16TC (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 Unsigned32 (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 }Parker Standards Track [Page 38]
RFC 4444 IS-IS MIB April 2006 isisCircLevelCSNPInterval OBJECT-TYPE SYNTAX Unsigned32 (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 Unsigned32 (1..120) UNITS "seconds" 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 ::=Parker Standards Track [Page 39]
RFC 4444 IS-IS MIB April 2006 SEQUENCE { isisSysStatLevel IsisISLevel, isisSysStatCorrLSPs Counter32, isisSysStatAuthTypeFails Counter32, isisSysStatAuthFails Counter32, isisSysStatLSPDbaseOloads Counter32, isisSysStatManAddrDropFromAreas Counter32, isisSysStatAttmptToExMaxSeqNums Counter32, isisSysStatSeqNumSkips Counter32, isisSysStatOwnLSPPurges 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 are not counted.Parker Standards Track [Page 40]
RFC 4444 IS-IS MIB April 2006 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" 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-onlyParker Standards Track [Page 41]
RFC 4444 IS-IS MIB April 2006 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 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 from 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 Counter32Parker Standards Track [Page 42]
RFC 4444 IS-IS MIB April 2006 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 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, isisCircRejAdjsParker Standards Track [Page 43]
RFC 4444 IS-IS MIB April 2006 Counter32, isisCircIDFieldLenMismatches Counter32, isisCircMaxAreaAddrMismatches Counter32, isisCircAuthTypeFails Counter32, isisCircAuthFails Counter32, isisCircLANDesISChanges Counter32 } isisCircuitType OBJECT-TYPE SYNTAX INTEGER { lanlevel1(1), lanlevel2(2), p2pcircuit(3) } MAX-ACCESS not-accessible STATUS current DESCRIPTION "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."Parker Standards Track [Page 44]
RFC 4444 IS-IS MIB April 2006 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 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 from 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 from that for this system has been received." REFERENCE "{ISIS.aoi iDFieldLengthMismatches (25)}" ::= { isisCircuitCounterEntry 7 } isisCircAuthTypeFails OBJECT-TYPEParker Standards Track [Page 45]
RFC 4444 IS-IS MIB April 2006 SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times an IS-IS control PDU with an auth type field different from 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 } 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."Parker Standards Track [Page 46]
RFC 4444 IS-IS MIB April 2006 INDEX { isisCircIndex, isisPacketCountLevel, isisPacketCountDirection } ::= { isisPacketCounterTable 1 } IsisPacketCounterEntry ::= SEQUENCE { isisPacketCountLevel IsisISLevel, isisPacketCountDirection INTEGER, isisPacketCountIIHello Counter32, isisPacketCountISHello Counter32, isisPacketCountESHello Counter32, isisPacketCountLSP Counter32, 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-TYPEParker Standards Track [Page 47]
RFC 4444 IS-IS MIB April 2006 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 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 DESCRIPTIONParker Standards Track [Page 48]
RFC 4444 IS-IS MIB April 2006 "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 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-accessibleParker Standards Track [Page 49]
RFC 4444 IS-IS MIB April 2006 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. Dynamically learned rows do not survive an agent reboot." INDEX { isisCircIndex, isisISAdjIndex } ::= { isisISAdjTable 1 } IsisISAdjEntry ::= SEQUENCE { isisISAdjIndex Unsigned32, isisISAdjState INTEGER, isisISAdj3WayState INTEGER, isisISAdjNeighSNPAAddress IsisOSINSAddress, isisISAdjNeighSysType INTEGER, isisISAdjNeighSysID IsisSystemID, isisISAdjNbrExtendedCircID Unsigned32, isisISAdjUsage IsisLevel, isisISAdjHoldTimer IsisUnsigned16TC, isisISAdjNeighPriority IsisISPriority, isisISAdjLastUpTime TimeStamp } isisISAdjIndex OBJECT-TYPE SYNTAX Unsigned32(1..4294967295) MAX-ACCESS not-accessible STATUS currentParker Standards Track [Page 50]
RFC 4444 IS-IS MIB April 2006 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), 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 }Parker Standards Track [Page 51]
RFC 4444 IS-IS MIB April 2006 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 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 IsisLevel 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 IsisUnsigned16TC (1..65535)Parker Standards Track [Page 52]
RFC 4444 IS-IS MIB April 2006 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 SYNTAX TimeStamp MAX-ACCESS read-only STATUS current DESCRIPTION "When the adjacency most recently entered the state 'up', measured in hundredths of a second since the last re-initialization of the network management subsystem. 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 }Parker Standards Track [Page 53]
RFC 4444 IS-IS MIB April 2006 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. Dynamically learned rows do not survive an agent reboot." INDEX { isisCircIndex, isisISAdjIndex, isisISAdjAreaAddrIndex } ::= { isisISAdjAreaAddrTable 1 } IsisISAdjAreaAddrEntry ::= SEQUENCE { isisISAdjAreaAddrIndex Unsigned32, isisISAdjAreaAddress IsisOSINSAddress } isisISAdjAreaAddrIndex OBJECT-TYPE 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 IsisISAdjIPAddrEntryParker Standards Track [Page 54]
RFC 4444 IS-IS MIB April 2006 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. Dynamically learned rows do not survive an agent reboot." INDEX { isisCircIndex, isisISAdjIndex, isisISAdjIPAddrIndex } ::= { isisISAdjIPAddrTable 1 } IsisISAdjIPAddrEntry ::= SEQUENCE { 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 that 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 PDUsParker Standards Track [Page 55]
RFC 4444 IS-IS MIB April 2006 received from the neighbor." ::= { isisISAdjIPAddrEntry 2 } isisISAdjIPAddrAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "One IP Address as reported in IIH PDUs received from the neighbor. The type of this address is determined by the value of the isisISAdjIPAddrType object." ::= { 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 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. Dynamically learned rows do not survive an agent reboot." INDEX { isisCircIndex, isisISAdjIndex, isisISAdjProtSuppProtocol } ::= { isisISAdjProtSuppTable 1 } IsisISAdjProtSuppEntry ::= SEQUENCE {Parker Standards Track [Page 56]
RFC 4444 IS-IS MIB April 2006 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 Table-- Each entry records information about a reachable address-- (NSAP or address prefix) manually configured on the system-- or learned through another protocol. isisRATable OBJECT-TYPE SYNTAX SEQUENCE OF IsisRAEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The table of Reachable Addresses to NSAPs or Address Prefixes." ::= { isisReachAddr 1 } isisRAEntry OBJECT-TYPE SYNTAX IsisRAEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry defines a configured Reachable Address to an NSAP or Address Prefix. Dynamically created rows MUST survive an agent reboot." INDEX { isisCircIndex, isisRAIndex } ::= { isisRATable 1 } IsisRAEntry ::= SEQUENCE { isisRAIndex Unsigned32, isisRAExistState RowStatus,Parker Standards Track [Page 57]
RFC 4444 IS-IS MIB April 2006 isisRAAdminState IsisAdminState, 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." ::= { isisRAEntry 1 } isisRAExistState OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The existence state of this Reachable Address. This object follows the ManualOrAutomatic behaviors. Support for 'createAndWait' and 'notInService' is not required. A row entry cannot be modified when the value of this object is 'active'." ::= { isisRAEntry 2 } isisRAAdminState OBJECT-TYPE SYNTAX IsisAdminState MAX-ACCESS read-create STATUS current DESCRIPTIONParker Standards Track [Page 58]
RFC 4444 IS-IS MIB April 2006 "The administrative state of the Reachable Address. This object follows the 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 that should be used in forwarding PDUs for this Reachable Address prefix. This object follows the ManualOrAutomatic behavior. The following values of mapping type are defined: none: The mapping is null because the neighbor SNPA is implicit by nature of the subnetwork (e.g., a point-to-point linkage). explicit: The subnetwork addresses in the object isisRASNPAAddress are 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.164Parker Standards Track [Page 59]
RFC 4444 IS-IS MIB April 2006 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 "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 that matches the address prefix of the Reachable Address. This object follows theParker Standards Track [Page 60]
RFC 4444 IS-IS MIB April 2006 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 bit 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 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) }Parker Standards Track [Page 61]
RFC 4444 IS-IS MIB April 2006 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 (e.g., 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 "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. 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 isisIPRADestr, isisIPRADestPrefixLen, and isisIPRANextHopIndex is too great, then OIDs of column instances in this table will have more than 128 subidentifiers and cannot be accessed using SNMPv1,Parker Standards Track [Page 62]
RFC 4444 IS-IS MIB April 2006 SNMPv2c, or SNMPv3." 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 IsisAdminState, isisIPRAMetric IsisDefaultMetric, isisIPRAMetricType IsisMetricType, isisIPRAFullMetric IsisFullMetric, isisIPRASNPAAddress IsisOSINSAddress, isisIPRASourceType INTEGER } isisIPRADestType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The type of this IP Reachable Address." ::= { isisIPRAEntry 1 }Parker Standards Track [Page 63]
RFC 4444 IS-IS MIB April 2006 isisIPRADest OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The destination of this IP Reachable Address. This is a network address, subnetwork address, or host address. The type of this address is determined by the value of the isisIPRADestType object." ::= { isisIPRAEntry 2 } isisIPRADestPrefixLen OBJECT-TYPE SYNTAX InetAddressPrefixLength MAX-ACCESS not-accessible STATUS current DESCRIPTION "The length of the IP Netmask for Reachability Address. The values for the index objects isisIPRADest and isisIPRADestPrefixLen must be consistent. When the value of isisIPRADest (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 isisIPRADestPrefixLen 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." ::= { 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." ::= { isisIPRAEntry 5 }Parker Standards Track [Page 64]
RFC 4444 IS-IS MIB April 2006 isisIPRANextHop OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "The IP next hop to this destination. The type of this address is determined by the value of the isisIPRANextHopType object." ::= { 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. A row entry cannot be modified when the value of this object is 'active'." ::= { isisIPRAEntry 8 } isisIPRAAdminState OBJECT-TYPE SYNTAX IsisAdminState MAX-ACCESS read-create STATUS current DESCRIPTION "The administrative state of the IP Reachable Address. This object follows the IsisAdminState and ManualOrAutomaticParker Standards Track [Page 65]
RFC 4444 IS-IS MIB April 2006 behaviors." DEFVAL { off } ::= { isisIPRAEntry 9 } isisIPRAMetric OBJECT-TYPE SYNTAX IsisDefaultMetric MAX-ACCESS read-create STATUS current DESCRIPTION "The metric value for reaching the specified destination over this circuit. This object follows the ManualOrAutomatic behavior." DEFVAL { 10 } ::= { isisIPRAEntry 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 that matches this IP Reachable Address. This object follows the ManualOrAutomatic behavior." DEFVAL { ''H } ::= { isisIPRAEntry 13 }Parker Standards Track [Page 66]
RFC 4444 IS-IS MIB April 2006 isisIPRASourceType OBJECT-TYPE SYNTAX INTEGER { static (1), direct (2), ospfv2 (3), ospfv3 (4), 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. Dynamically learned rows will not survive an agent reboot." INDEX { isisLSPLevel, isisLSPID } ::= { isisLSPSummaryTable 1 } IsisLSPSummaryEntry ::=Parker Standards Track [Page 67]
RFC 4444 IS-IS MIB April 2006 SEQUENCE { isisLSPLevel IsisISLevel, isisLSPID IsisLinkStatePDUID, isisLSPSeq Unsigned32, isisLSPZeroLife TruthValue, isisLSPChecksum IsisUnsigned16TC, isisLSPLifetimeRemain IsisUnsigned16TC, isisLSPPDULength IsisUnsigned16TC, isisLSPAttributes IsisUnsigned8TC } 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 for this Link State PDU." ::= { 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 DESCRIPTIONParker Standards Track [Page 68]
RFC 4444 IS-IS MIB April 2006 "Is this LSP being purged by this system?" ::= { isisLSPSummaryEntry 4 } isisLSPChecksum OBJECT-TYPE SYNTAX IsisUnsigned16TC MAX-ACCESS read-only STATUS current DESCRIPTION "The 16-bit Fletcher Checksum for this LSP." ::= { isisLSPSummaryEntry 5 } isisLSPLifetimeRemain OBJECT-TYPE SYNTAX IsisUnsigned16TC UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The remaining lifetime, in seconds, for this LSP." ::= { isisLSPSummaryEntry 6 } isisLSPPDULength OBJECT-TYPE SYNTAX IsisUnsigned16TC MAX-ACCESS read-only STATUS current DESCRIPTION "The length of this LSP." ::= { isisLSPSummaryEntry 7 } isisLSPAttributes OBJECT-TYPE SYNTAX IsisUnsigned8TC 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 currentParker Standards Track [Page 69]
RFC 4444 IS-IS MIB April 2006 DESCRIPTION "The table of LSPs in the database." ::= { isisLSPDataBase 2 } isisLSPTLVEntry OBJECT-TYPE SYNTAX IsisLSPTLVEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry describes a TLV within an LSP currently stored in the system. Dynamically learned rows will not survive an agent reboot." INDEX { isisLSPLevel, isisLSPID, isisLSPTLVIndex } ::= { isisLSPTLVTable 1 } IsisLSPTLVEntry ::= SEQUENCE { isisLSPTLVIndex Unsigned32, isisLSPTLVSeq Unsigned32, isisLSPTLVChecksum IsisUnsigned16TC, isisLSPTLVType IsisUnsigned8TC, isisLSPTLVLen IsisUnsigned8TC, 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 currentParker Standards Track [Page 70]
RFC 4444 IS-IS MIB April 2006 DESCRIPTION "The sequence number for this LSP." ::= { isisLSPTLVEntry 2 } isisLSPTLVChecksum OBJECT-TYPE SYNTAX IsisUnsigned16TC MAX-ACCESS read-only STATUS current DESCRIPTION "The 16-bit Fletcher Checksum for this LSP." ::= { isisLSPTLVEntry 3 } isisLSPTLVType OBJECT-TYPE SYNTAX IsisUnsigned8TC MAX-ACCESS read-only STATUS current DESCRIPTION "The type of this TLV." ::= { isisLSPTLVEntry 4 } isisLSPTLVLen OBJECT-TYPE SYNTAX IsisUnsigned8TC 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 IsisLevel MAX-ACCESS accessible-for-notifyParker Standards Track [Page 71]
RFC 4444 IS-IS MIB April 2006 STATUS current DESCRIPTION "The system level for this notification." ::= { isisNotificationEntry 1 } isisNotificationCircIfIndex OBJECT-TYPE SYNTAX Unsigned32 (1..2147483647) MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The identifier of this circuit relevant to this notification." ::= { 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 IsisUnsigned8TC MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "Holds the System ID length reported in PDU we received." ::= { isisNotificationEntry 5 } isisPduMaxAreaAddress OBJECT-TYPE SYNTAX IsisUnsigned8TC MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "Holds the Max Area Addresses reported in a PDU we received." ::= { isisNotificationEntry 6 }Parker Standards Track [Page 72]
RFC 4444 IS-IS MIB April 2006 isisPduProtocolVersion OBJECT-TYPE SYNTAX IsisUnsigned8TC MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "Holds the Protocol version reported in PDU we received." ::= { isisNotificationEntry 7 } isisPduLspSize OBJECT-TYPE SYNTAX Unsigned32 (0..2147483647) 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 IsisUnsigned16TC (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 IsisUnsigned16TC (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 {Parker Standards Track [Page 73]
RFC 4444 IS-IS MIB April 2006 down (1), initializing (2), up (3), failed(4) } MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The current state of an adjacency." ::= { isisNotificationEntry 12 } 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 }-- Notification definitions---- Note that notifications can be disabled by setting-- isisSysNotificationEnable false isisDatabaseOverload NOTIFICATION-TYPE OBJECTS { isisNotificationSysLevelIndex, isisSysLevelState }Parker Standards Track [Page 74]
RFC 4444 IS-IS MIB April 2006 STATUS current DESCRIPTION "This notification is generated when the system enters or leaves the Overload state. The number of times this has been generated and cleared is kept track of by isisSysStatLSPDbaseOloads." ::= { isisNotifications 1 } isisManualAddressDrops NOTIFICATION-TYPE OBJECTS { isisNotificationAreaAddress } STATUS current DESCRIPTION "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. The agent must throttle the generation of consecutive isisManualAddressDrops notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { 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."Parker Standards Track [Page 75]
RFC 4444 IS-IS MIB April 2006 ::= { 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. 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 for the System ID Length. This notification includes 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. The agent must throttle the generation of consecutive isisIDLenMismatch notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { isisNotifications 5 } isisMaxAreaAddressesMismatch NOTIFICATION-TYPE OBJECTS {Parker Standards Track [Page 76]
RFC 4444 IS-IS MIB April 2006 isisNotificationSysLevelIndex, isisPduMaxAreaAddress, isisNotificationCircIfIndex, isisPduFragment } STATUS current DESCRIPTION "A notification sent when we receive a PDU with a different value for the Maximum Area Addresses. This notification includes the header of the packet, which may help a network manager identify the source of the confusion. The agent must throttle the generation of consecutive isisMaxAreaAddressesMismatch notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { isisNotifications 6 } 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 currentParker Standards Track [Page 77]
RFC 4444 IS-IS MIB April 2006 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 identify the source of the confusion. The agent must throttle the generation of consecutive isisAuthenticationTypeFailure notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { isisNotifications 9 } isisAuthenticationFailure NOTIFICATION-TYPE OBJECTS { isisNotificationSysLevelIndex, isisNotificationCircIfIndex, isisPduFragment } STATUS current DESCRIPTION "A notification sent when we receive a PDU with an incorrect authentication information field. This notification includes the header of the packet, which may help a network manager identify the source of the confusion.Parker Standards Track [Page 78]
RFC 4444 IS-IS MIB April 2006 The agent must throttle the generation of consecutive isisAuthenticationFailure notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { 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. The agent must throttle the generation of consecutive isisVersionSkew notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { isisNotifications 11 } isisAreaMismatch NOTIFICATION-TYPE OBJECTS { isisNotificationCircIfIndex, isisPduFragment } STATUS current DESCRIPTION "A notification sent when we receive a Hello PDU from an IS that 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.Parker Standards Track [Page 79]
RFC 4444 IS-IS MIB April 2006 The agent must throttle the generation of consecutive isisAreaMismatch notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { 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. The agent must throttle the generation of consecutive isisRejectedAdjacency notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { isisNotifications 13 } isisLSPTooLargeToPropagate NOTIFICATION-TYPE OBJECTS { isisNotificationSysLevelIndex, isisNotificationCircIfIndex, isisPduLspSize, isisPduLspId } STATUS current DESCRIPTION "A notification sent when we attempt to propagate an LSP that is larger than the dataLinkBlockSize for the circuit. The agent must throttle the generation of consecutive isisLSPTooLargeToPropagate notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, notParker Standards Track [Page 80]
RFC 4444 IS-IS MIB April 2006 queued for sending at a future time." ::= { 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 that is larger than the local value for isisSysLevelOrigLSPBuffSize, or when an LSP is received that contains 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. The agent must throttle the generation of consecutive isisOrigLSPBuffSizeMismatch notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { 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. 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 beParker Standards Track [Page 81]
RFC 4444 IS-IS MIB April 2006 empty if the TLV is not supported, or if the TLV is empty. The agent must throttle the generation of consecutive isisProtocolsSupportedMismatch notifications so that there is at least a 5-second gap between notifications of this type. When notifications are throttled, they are dropped, not queued for sending at a future time." ::= { 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 an index of the circuit on which the PDU arrived. The isisPduFragment holds the start of the LSP, and the isisErrorOffset points to the problem. If the problem is a malformed TLV, isisErrorOffset points to the start of the TLV, and isisErrorTLVTypeParker Standards Track [Page 82]
RFC 4444 IS-IS MIB April 2006 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 defineisisCompliances 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. There are a number of INDEX objects that cannot be represented in the form of OBJECT clauses in SMIv2, but for which there are compliance requirements. Those requirements and similar requirements for related objects are expressed below, in pseudo-OBJECT clause form, in this description: -- OBJECT isisSummAddressType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 Summary -- Addresses and anticipates the support of -- IPv6 addresses. -- -- -- OBJECT isisRedistributeAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 -- Redistribution Addresses and anticipates -- the support of IPv6 addresses." --Parker Standards Track [Page 83]
RFC 4444 IS-IS MIB April 2006 -- -- OBJECT isisISAdjIPAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 -- Adjacency Addresses and anticipates the -- support of IPv6 addresses. 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 fully support the IS-IS MIB. There are a number of INDEX objects that cannot be represented in the form of OBJECT clauses in SMIv2, but for which there are compliance requirements. Those requirements and similar requirements for related objects are expressed below, in pseudo-OBJECT clause form, in this description: -- OBJECT isisSummAddressType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 Summary -- Addresses and anticipates the support of -- IPv6 addresses. -- -- -- OBJECT isisRedistributeAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 -- Redistribution Addresses and anticipates -- the support of IPv6 addresses."Parker Standards Track [Page 84]
RFC 4444 IS-IS MIB April 2006 -- -- -- OBJECT isisISAdjIPAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 -- Adjacency Addresses and anticipates the -- support of IPv6 addresses. -- -- -- OBJECT isisIPRADestType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 RA -- Addresses and anticipates the support of -- IPv6 addresses. -- -- -- OBJECT isisIPRANextHopType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- -- DESCRIPTION -- The MIB requires support for IPv4 NextHop -- Addresses and anticipates the support of -- IPv6 addresses. MODULE -- this module MANDATORY-GROUPS { isisSystemGroup, isisCircuitGroup, isisISAdjGroup, isisNotificationObjectGroup, isisNotificationGroup, isisISPDUCounterGroup, isisRATableGroup, isisISIPRADestGroup, isisLSPGroup } ::= { isisCompliances 2 } isisReadOnlyCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "When this MIB is implemented without support for read-create (i.e., in read-only mode), the implementation can claim read-only compliance. Such a device can then be monitored but cannot beParker Standards Track [Page 85]
RFC 4444 IS-IS MIB April 2006 configured with this MIB." MODULE -- this module MANDATORY-GROUPS { isisSystemGroup, isisCircuitGroup, isisISAdjGroup } OBJECT isisSysLevelType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysID MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysMaxPathSplits MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysMaxLSPGenInt MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysPollESHelloRate MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysWaitTime MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysAdminState MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysL2toL1Leaking MIN-ACCESS read-only DESCRIPTION "Write access is not required."Parker Standards Track [Page 86]
RFC 4444 IS-IS MIB April 2006 OBJECT isisSysMaxAge MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisManAreaAddrExistState MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysLevelOrigLSPBuffSize MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysLevelMinLSPGenInt MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysLevelSetOverload MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysLevelSetOverloadUntil MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysLevelMetricStyle MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysLevelSPFConsiders MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysLevelTEEnabled MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSysReceiveLSPBufferSize MIN-ACCESS read-only DESCRIPTIONParker Standards Track [Page 87]
RFC 4444 IS-IS MIB April 2006 "Write access is not required." OBJECT isisSummAddrExistState MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSummAddrMetric MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisSummAddrFullMetric MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisRedistributeAddrExistState MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircAdminState MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircExistState MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircExtDomain MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircPassiveCircuitParker Standards Track [Page 88]
RFC 4444 IS-IS MIB April 2006 MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircMeshGroupEnabled MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircMeshGroup MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircSmallHellos MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircExtendedCircID MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircIfIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCirc3WayEnabled MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelMetric MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelWideMetric MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelISPriority MIN-ACCESS read-only DESCRIPTION "Write access is not required."Parker Standards Track [Page 89]
RFC 4444 IS-IS MIB April 2006 OBJECT isisCircLevelHelloMultiplier MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelHelloTimer MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelDRHelloTimer MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelLSPThrottle MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelMinLSPRetransInt MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelCSNPInterval MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT isisCircLevelPartSNPInterval MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { isisCompliances 3 }-- MIB Grouping isisSystemGroup OBJECT-GROUP OBJECTS { isisSysVersion, isisSysLevelType, isisSysID, isisSysMaxPathSplits, isisSysMaxLSPGenInt, isisSysPollESHelloRate, isisSysWaitTime,Parker Standards Track [Page 90]
RFC 4444 IS-IS MIB April 2006 isisSysAdminState, isisSysL2toL1Leaking, isisSysMaxAge, isisSysProtSupported, isisSysNotificationEnable, isisManAreaAddrExistState, isisSysLevelOrigLSPBuffSize, isisSysLevelMinLSPGenInt, isisSysLevelState, isisSysLevelSetOverload, isisSysLevelSetOverloadUntil, isisSysLevelMetricStyle, isisSysLevelSPFConsiders, isisSysLevelTEEnabled, isisSysReceiveLSPBufferSize, isisSummAddrExistState, isisSummAddrMetric, isisAreaAddr, isisSummAddrFullMetric, isisRedistributeAddrExistState, isisRouterHostName, isisRouterID, isisSysStatCorrLSPs, isisSysStatLSPDbaseOloads, isisSysStatManAddrDropFromAreas, isisSysStatAttmptToExMaxSeqNums, isisSysStatSeqNumSkips, isisSysStatOwnLSPPurges, isisSysStatIDFieldLenMismatches, isisSysStatPartChanges, isisSysStatSPFRuns, isisSysStatAuthTypeFails, isisSysStatAuthFails, isisSysStatLSPErrors } STATUS current DESCRIPTION "The collections of objects used to manage an IS-IS router." ::= { isisGroups 1 } isisCircuitGroup OBJECT-GROUP OBJECTS { isisNextCircIndex, isisCircAdminState, isisCircExistState, isisCircType, isisCircExtDomain,Parker Standards Track [Page 91]
RFC 4444 IS-IS MIB April 2006 isisCircLevelType, isisCircAdjChanges, isisCircNumAdj, isisCircInitFails, isisCircRejAdjs, isisCircIDFieldLenMismatches, isisCircMaxAreaAddrMismatches, isisCircAuthTypeFails, isisCircAuthFails, isisCircLANDesISChanges, isisCircPassiveCircuit, isisCircMeshGroupEnabled, isisCircMeshGroup, isisCircSmallHellos, isisCircLastUpTime, isisCirc3WayEnabled, isisCircExtendedCircID, isisCircIfIndex, isisCircLevelMetric, isisCircLevelWideMetric, isisCircLevelISPriority, isisCircLevelIDOctet, isisCircLevelID, isisCircLevelDesIS, isisCircLevelHelloMultiplier, isisCircLevelHelloTimer, isisCircLevelDRHelloTimer, isisCircLevelLSPThrottle, isisCircLevelMinLSPRetransInt, isisCircLevelCSNPInterval, isisCircLevelPartSNPInterval } STATUS current DESCRIPTION "The collections of objects used to describe an IS-IS Circuit." ::= { isisGroups 2 } isisISAdjGroup OBJECT-GROUP OBJECTS { isisISAdjState, isisISAdj3WayState, isisISAdjNeighSNPAAddress, isisISAdjNeighSysType, isisISAdjNeighSysID, isisISAdjNbrExtendedCircID, isisISAdjUsage, isisISAdjHoldTimer,Parker Standards Track [Page 92]
RFC 4444 IS-IS MIB April 2006 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 } 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,Parker Standards Track [Page 93]
RFC 4444 IS-IS MIB April 2006 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 } isisRATableGroup OBJECT-GROUP OBJECTS { isisRAExistState, isisRAAdminState, isisRAAddrPrefix, isisRAMapType, isisRAMetric, isisRAMetricType, isisRASNPAAddress, isisRASNPAMask, isisRASNPAPrefix, isisRAType } STATUS current DESCRIPTION "The collections of objects used to manage theParker Standards Track [Page 94]
RFC 4444 IS-IS MIB April 2006 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, isisLSPTLVChecksum, isisLSPTLVType, isisLSPTLVLen, isisLSPTLVValue } STATUS current DESCRIPTION "The collections of objects used to observe the LSP Database." ::= { isisGroups 9 }ENDParker Standards Track [Page 95]
RFC 4444 IS-IS MIB April 20065. IANA Considerations The MIB module in this document uses the following IANA-assigned OBJECT IDENTIFIER values recorded in the SMI Numbers registry: Descriptor OBJECT IDENTIFIER value ---------- ----------------------- isisMIB { mib-2 138 }6. Acknowledgements This MIB is based on a March 1994 document by Chris Gunner, who should be held blameless for the errors introduced since then. 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. We would like to thank the following individuals for constructive and valuable comments: Mike Bartlett, Neal Castagnoli, Ken Chapman, Joan Cucchiara, Satish Dattatri, Nagi Jonnala, Adrian Farrel, Shamik Ganguly, Les Ginsberg, Don Goodspeed, Jeff Gross, Jim Halpin, Jon Harrison, Dimitri Haskin, C. M. Heard, Peter Higginson, Christian Hopps, Laura Liu, Gavin McPherson, Kay Noguchi, Serge Maskalik, Z. Opalka, Jeff Pickering, Sundar Ramachandran, Swaminatha Ramalingam, Aravind Ravikumar, Juergen Schoenwaelder, Koen Vermeulen, Hans De Vleeschouwer, Bert Wijnen, and Bingzhang Zhao.7. Security Considerations Management information defined in this MIB may be considered sensitive in some network environments.7.1. Discussion This MIB may be used to manage an IP router, which is used to direct network traffic. The control of network traffic allows an attacker to deny service to a region of the network or to forward traffic to adversaries. By raising or lowering metrics, traffic may be directed to insecure portions of the network. By disabling the protocol on an interface, the network may be partitioned. Changes to the network topology will force all routers to recompute their routes. Periodic route changes have brought down networks in the past by subjecting routers to stressful recomputations. 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 networkParker Standards Track [Page 96]
RFC 4444 IS-IS MIB April 2006 environments. The support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations. Authentication of received SNMP requests and controlled access to management information should be employed in such environments. We identify a set of threats and then list attributes that can be used in each form of attack. We discuss the effects that can be obtained by a single change to the variable in each class.7.2. Threats - Drop an Adjacency - Drop all Peers - Drop Subnetwork - Split the Network - Intermittent Outages - Redirect Traffic - Delay Convergence - Avoid Detection - Prevent Updates - Hijack LAN - Create Problems for CLNS Networks7.2.1. Drop an Adjacency By changing attributes that are used to peer, we can disrupt an adjacency and bring a link down. isisCirc3WayEnabled isisCircAdminState isisCircExistState isisCircLevelDRHelloTimer isisCircLevelHelloTimer isisCircLevelType isisCircSmallHellos7.2.2. Drop All Adjacencies These attributes can be used to break some or all of a router's adjacencies. In the case of System ID, the adjacency may be restored. However, it will subject the network to additional stress. isisSysLevelType isisManAreaAddrExistState isisSysAdminState isisSysIDParker Standards Track [Page 97]
RFC 4444 IS-IS MIB April 20067.2.3. Drop Subnetwork This attribute can be used to stop advertisement of a subnetwork reachable through a single interface. isisCircPassiveCircuit7.2.4. Split the Network If the network design depends upon Wide Metrics or TE, we can use these attributes to prevent traffic from passing through a router. isisSysLevelMetricStyle isisSysLevelOrigLSPBuffSize isisSysLevelSPFConsiders isisSysLevelTEEnabled isisSysReceiveLSPBufferSize7.2.5. Intermittent Outages We can use these attributes to subject the network to a series of topology changes, or otherwise force extensive recomputations of routes. isisSysLevelMinLSPGenInt isisSysLevelSetOverload isisSysLevelSetOverloadUntil isisSysMaxAge isisSysMaxLSPGenInt isisSysL2toL1Leaking isisSysID7.2.6. Redirect Traffic By changing attributes such as metrics, we can push traffic to different parts of the network. This may allow an intruder to observe data traffic from otherwise remote parts of the network. We may also use these attributes to deny service to parts of the network. isisSysMaxPathSplits isisCircLevelMetric isisCircLevelWideMetric isisIPRAAdminState isisIPRAExistState isisIPRAFullMetric isisIPRAMetricParker Standards Track [Page 98]
RFC 4444 IS-IS MIB April 2006 isisIPRAMetricType isisIPRANextHop isisIPRANextHopType isisIPRASNPAAddress isisIPRAType isisRedistributeAddrExistState isisSummAddrExistState isisSummAddrFullMetric isisSummAddrMetric isisSysL2toL1Leaking7.2.7. Delay Convergence These attributes can be used to slow convergence by increasing the minimal interval required to update a packet. isisCircLevelCSNPInterval isisCircLevelLSPThrottle isisCircLevelMinLSPRetransInt isisCircLevelPartSNPInterval isisSysWaitTime isisCircPassiveCircuit7.2.8. Avoid Detection By turning off traps, we can prevent a Network Management station from observing problems in the network caused by other aspects of an attack. isisSysNotificationEnable7.2.9. Prevent Updates Mesh Groups can be used to prevent the transmission of Link State PDUs on certain interfaces, delaying or preventing the propagation of updates. isisCircMeshGroup isisCircMeshGroupEnabled7.2.10. Hijack LAN If we have compromised a router, we can use this attribute to become the designated router and lie about the topology of a LAN. isisCircLevelISPriorityParker Standards Track [Page 99]
RFC 4444 IS-IS MIB April 20067.2.11. Create Problems for CLNS Networks This attribute can be used to modify the handling of CLNS traffic. isisRAAddrPrefix isisRAAdminState isisRAExistState isisRAMapType isisRAMetric isisRAMetricType isisRASNPAAddress isisRASNPAMask isisRASNPAPrefix isisRAType isisSysPollESHelloRate7.2.12. Mostly Harmless The following writable attributes do not pose a known security risk. isisCircExtDomain isisCircExtendedCircID isisCircIfIndex isisCircLevelHelloMultiplier isisCircType7.2.13. Recommendations Much of the MIB is used to set or read attributes which are readily visible to any intruder who has access to traffic. None of the security attributes are setable or visible through the MIB. Read access to the MIB does not pose additional risks or vulnerabilities. If write access is to be provided, 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). 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. 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 anParker Standards Track [Page 100]
RFC 4444 IS-IS MIB April 2006 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.8. Normative References [ISO10589] ISO 10589, "Intermediate system to Intermediate system routeing information exchange protocol for use in conjunction with the Protocol for providing the Connectionless-mode Network Service (ISO 8473)," ISO/IEC 10589:2002. [ISO10733] ISO 10733, "Information Processing Systems - Open Systems Interconnection - Specification of the elements of Management Information related to OSI Network layer Standards", September 1998. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels",BCP 14,RFC 2119, March 1997. [RFC1195] Callon, R., "Use of OSI IS-IS for routing in TCP/IP and dual environments",RFC 1195, December 1990. [RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB",RFC 2863, June 2000. [RFC3289] Baker, F., Chan, K., and A. Smith, "Management Information Base for the Differentiated Services Architecture",RFC3289, May 2002. [RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks", STD 62,RFC 3411, December 2002. [RFC2578] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Structure of Management Information Version 2 (SMIv2)", STD 58,RFC 2578, April 1999. [RFC2579] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Textual Conventions for SMIv2", STD 58,RFC 2579, April 1999. [RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Conformance Statements for SMIv2", STD 58,RFC 2580, April 1999.Parker Standards Track [Page 101]
RFC 4444 IS-IS MIB April 2006 [RFC4001] Daniele, M., Haberman, B., Routhier, S., and J. Schoenwaelder, "Textual Conventions for Internet Network Addresses",RFC 4001, February 2005.9. Informative References [RFC2973] Balay, R., Katz, D., and J. Parker, "IS-IS Mesh Groups",RFC 2973, October 2000. [RFC3373] Katz, D. and R. Saluja, "Three-Way Handshake for Intermediate System to Intermediate System (IS-IS) Point- to-Point Adjacencies",RFC 3373, September 2002. [RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet- Standard Management Framework",RFC 3410, December 2002.Authors' Address Jeff Parker Department of Computer Science Middlebury College, Middlebury, Vermont 05753 EMail: jeffp@middlebury.eduParker Standards Track [Page 102]
RFC 4444 IS-IS MIB April 2006Full Copyright Statement Copyright (C) The Internet Society (2006). This document is subject to the rights, licenses and restrictions contained inBCP 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.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 inBCP 78 andBCP 79. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an 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 athttp://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.Acknowledgement Funding for the RFC Editor function is provided by the IETF Administrative Support Activity (IASA).Parker Standards Track [Page 103]
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