💾 Archived View for gemini.bortzmeyer.org › rfc-mirror › rfc4444.txt captured on 2023-04-26 at 15:10:47.
⬅️ Previous capture (2021-11-30)
-=-=-=-=-=-=-
Network Working Group J. Parker, Ed.
Request for Comments: 4444 Axiowave Networks
Category: Standards Track April 2006
Management Information Base for
Intermediate 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 Contents
1. The Internet-Standard Management Framework . . . . . . . . . . 2
2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Definition of IS-IS MIB. . . . . . . . . . . . . . . . . . . . 6
5. IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 96
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 96
7. Security Considerations. . . . . . . . . . . . . . . . . . . . 96
8. Normative References . . . . . . . . . . . . . . . . . . . . . 101
9. Informative References . . . . . . . . . . . . . . . . . . . . 102
Parker Standards Track [Page 1]
RFC 4444 IS-IS MIB April 2006
1. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].
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 in RFC 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 in BCP 14, RFC 2119 [RFC2119].
Parker Standards Track [Page 5]
RFC 4444 IS-IS MIB April 2006
4. Definition of IS-IS MIB
ISIS-MIB DEFINITIONS ::= BEGIN
IMPORTS
TEXTUAL-CONVENTION, RowStatus, TruthValue, TimeStamp
FROM SNMPv2-TC -- RFC2579
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
Unsigned32, Counter32, mib-2
FROM SNMPv2-SMI -- RFC2578
MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
FROM SNMPv2-CONF -- RFC2580
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- RFC2571
IndexInteger, IndexIntegerNextFree
FROM DIFFSERV-MIB -- RFC3289
InterfaceIndex
FROM IF-MIB -- RFC2863
InetAddressType, InetAddress, InetAddressPrefixLength
FROM INET-ADDRESS-MIB; -- RFC3291
isisMIB MODULE-IDENTITY
LAST-UPDATED "200604040000Z" -- April 4, 2006, midnight
ORGANIZATION "IETF IS-IS for IP Internets Working Group"
CONTACT-INFO
"IS-IS for IP Internets working Group
http://www.ietf.org/html.charters/isis-charter.html
isis-wg@ietf.org
Jeff Parker
Department of Computer Science
Middlebury College,
Middlebury, Vermont 05753
jeffp at middlbury dot edu"
DESCRIPTION
"This document describes a management information base for
the IS-IS Routing protocol, as described in ISO 10589,
when it is used to construct routing tables for IP
networks, as described in RFC 1195.
This document is based on a 1994 IETF document by Chris
Gunner. This version has been modified to include
current syntax, to exclude portions of the protocol that
are not relevant to IP, and to add management support for
current practice.
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 of RFC 4444; see the RFC
itself for full legal notices."
REVISION "200604040000Z" -- April 4, 2006, midnight
DESCRIPTION
"Initial version, published as RFC 4444."
::= { mib-2 138 }
-- Top-level structure of the MIB
isisNotifications OBJECT IDENTIFIER ::= { isisMIB 0 }
isisObjects OBJECT IDENTIFIER ::= { isisMIB 1 }
isisConformance OBJECT IDENTIFIER ::= { isisMIB 2 }
-- OBJECT IDENTIFIER definitions
-- System wide attributes.
isisSystem OBJECT IDENTIFIER ::= { isisObjects 1 }
-- Attributes associated with the domain or with the area.
isisSysLevel OBJECT IDENTIFIER ::= { isisObjects 2 }
-- Attributes associated with one Circuit
isisCirc OBJECT IDENTIFIER ::= { isisObjects 3 }
-- Attributes associated with area or domain relevant within a Circuit.
isisCircLevelValues OBJECT IDENTIFIER ::= { isisObjects 4 }
-- System and circuit counters.
isisCounters OBJECT IDENTIFIER ::= { isisObjects 5 }
-- Attributes associated with an adjacent Protocol Peer.
isisISAdj OBJECT IDENTIFIER ::= { isisObjects 6 }
-- Attributes associated with a configured address.
isisReachAddr OBJECT IDENTIFIER ::= { isisObjects 7 }
-- Attributes associated with IP routes learned by
-- configuration or through another protocol.
isisIPReachAddr OBJECT IDENTIFIER ::= { isisObjects 8 }
-- The collection of Link State PDUs known to the Intermediate System
isisLSPDataBase OBJECT IDENTIFIER ::= { isisObjects 9 }
-- Objects included in Notifications.
isisNotification OBJECT IDENTIFIER ::= { isisObjects 10 }
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 "{See section 9.8 of ISO 10589}"
SYNTAX OCTET STRING (SIZE(8))
IsisAdminState ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Type used in enabling and disabling a row."
SYNTAX INTEGER
{
on(1),
off(2)
}
IsisLSPBuffSize ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
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 "{See section 5.3.1 of RFC 1195}"
SYNTAX INTEGER
{
iso8473(129),
ipV6(142),
ip(204)
}
IsisDefaultMetric ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"Integer sub-range for default metric for single hop.
ISO 10589 provides for 4 types of metric. Only the
'default' metric is used in practice."
REFERENCE "{See section 7.2.2 of ISO 10589}"
SYNTAX Unsigned32 (0..63)
IsisWideMetric ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"Wide metric for IS Neighbors. ISO 10589 provides a
6-bit metric. Traffic Engineering extensions provide
24-bit metrics."
Parker Standards Track [Page 9]
RFC 4444 IS-IS MIB April 2006
REFERENCE "{See section 3 of RFC 3784}"
SYNTAX Unsigned32 (0..16777215)
IsisFullMetric ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"Full metric for IP Routes. Traffic Engineering extensions
provide 32-bit metrics."
REFERENCE "{See section 4 of RFC 3784}"
SYNTAX Unsigned32
IsisMetricType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Is this an Internal or External Metric?"
REFERENCE "{See section 7.2.2 of ISO 10589}"
SYNTAX INTEGER
{
internal(1),
external(2)
}
IsisMetricStyle ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Do we use RFC 1195 style metrics or wide metrics?"
REFERENCE "{See section 5 of RFC 3787}"
SYNTAX INTEGER
{
narrow(1),
wide(2),
both(3)
}
IsisISLevel ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Identifies a level."
REFERENCE "{See definitions 3.6.1 and 3.6.11 of ISO 10589}"
SYNTAX INTEGER
{
area(1), -- L1
domain(2) -- L2
}
IsisLevel ::= TEXTUAL-CONVENTION
STATUS current
Parker 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 "{See section 7.2.7 of ISO 10589}"
SYNTAX OCTET STRING (SIZE(0|7))
IsisISPriority ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"Integer sub-range for IS-IS priority."
REFERENCE "{See section 9.5 of ISO 10589}"
SYNTAX Unsigned32 (0..127)
IsisUnsigned16TC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"An Unsigned32 further restricted to 16 bits. Note that
the ASN.1 BER encoding may still require 24 bits for
some values."
SYNTAX Unsigned32 (0..65535)
IsisUnsigned8TC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"An Unsigned32 further restricted to 8 bits. Note that
the ASN.1 BER encoding may still require 16 bits for
some values."
SYNTAX Unsigned32 (0..255)
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 IsisLevel
Parker 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 IsisAdminState
Parker 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 for
Parker 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
DESCRIPTION
Parker 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 and
Parker 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-accessible
Parker 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-TYPE
Parker 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. Support
Parker 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 current
Parker 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 IndexIntegerNextFree
Parker 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 InterfaceIndex
Parker 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 defined
Parker 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-only
Parker 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 Counter32
Parker 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,
isisCircRejAdjs
Parker 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-TYPE
Parker 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-TYPE
Parker 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
DESCRIPTION
Parker 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-accessible
Parker 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 current
Parker 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 IsisISAdjIPAddrEntry
Parker 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 PDUs
Parker 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
DESCRIPTION
Parker 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.164
Parker 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 the
Parker 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 ManualOrAutomatic
Parker 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
DESCRIPTION
Parker 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 current
Parker 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 current
Parker 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-notify
Parker 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 current
Parker 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, not
Parker 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 be
Parker 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 isisErrorTLVType
Parker 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 define
isisCompliances OBJECT IDENTIFIER ::= { isisConformance 1 }
isisGroups OBJECT IDENTIFIER ::= { isisConformance 2 }
-- compliance statements
isisCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for agents that support
the IS-IS MIB.
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 be
Parker 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
DESCRIPTION
Parker 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 isisCircPassiveCircuit
Parker 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 the
Parker 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 }
END
Parker Standards Track [Page 95]
RFC 4444 IS-IS MIB April 2006
5. 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 network
Parker 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 Networks
7.2.1. 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
isisCircSmallHellos
7.2.2. 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
isisSysID
Parker Standards Track [Page 97]
RFC 4444 IS-IS MIB April 2006
7.2.3. Drop Subnetwork
This attribute can be used to stop advertisement of a subnetwork
reachable through a single interface.
isisCircPassiveCircuit
7.2.4. 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
isisSysReceiveLSPBufferSize
7.2.5. 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
isisSysID
7.2.6. 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
isisIPRAMetric
Parker Standards Track [Page 98]
RFC 4444 IS-IS MIB April 2006
isisIPRAMetricType
isisIPRANextHop
isisIPRANextHopType
isisIPRASNPAAddress
isisIPRAType
isisRedistributeAddrExistState
isisSummAddrExistState
isisSummAddrFullMetric
isisSummAddrMetric
isisSysL2toL1Leaking
7.2.7. 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
isisCircPassiveCircuit
7.2.8. 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.
isisSysNotificationEnable
7.2.9. 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
isisCircMeshGroupEnabled
7.2.10. 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.
isisCircLevelISPriority
Parker Standards Track [Page 99]
RFC 4444 IS-IS MIB April 2006
7.2.11. 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
isisSysPollESHelloRate
7.2.12. Mostly Harmless
The following writable attributes do not pose a known security risk.
isisCircExtDomain
isisCircExtendedCircID
isisCircIfIndex
isisCircLevelHelloMultiplier
isisCircType
7.2.13. 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 an
Parker 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", RFC
3289, 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.edu
Parker Standards Track [Page 102]
RFC 4444 IS-IS MIB April 2006
Full Copyright Statement
Copyright (C) The Internet Society (2006).
This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors
retain all their rights.
This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Intellectual Property
The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; nor does it represent that it has
made any independent effort to identify any such rights. Information
on the procedures with respect to rights in RFC documents can be
found in BCP 78 and BCP 79.
Copies of IPR disclosures made to the IETF Secretariat and any
assurances of licenses to be made available, or the result of an
attempt made to obtain a general license or permission for the use of
such proprietary rights by implementers or users of this
specification can be obtained from the IETF on-line IPR repository at
http://www.ietf.org/ipr.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights that may cover technology that may be required to implement
this standard. Please address the information to the IETF at
ietf-ipr@ietf.org.
Acknowledgement
Funding for the RFC Editor function is provided by the IETF
Administrative Support Activity (IASA).
Parker Standards Track [Page 103]