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Versions: 00 04 05 rfc1850                                              
     Internet Draft             OSPF MIB                  July 1994
     
     
               OSPF Version 2 Management Information Base
                       draft-ietf-ospf-mib-04.txt
     
                      Thu Jul 14 17:43:27 PDT 1994
     
     
                               Fred Baker
     
                    Advanced Computer Communications
                            315 Bollay Drive
                    Santa Barbara, California 93117
     
                             fbaker@acc.com
     
     
                               Rob Coltun
     
                      RainbowBridge Communications
                             (301) 340-9416
     
                       rcoltun@rainbow-bridge.com
     
     
     
     
     
     
     1.  Status of this Memo
     
     This document is an Internet Draft.  Internet Drafts are
     working documents of the Internet Engineering Task Force
     (IETF), its Areas, and its Working Groups. Note that other
     groups may also distribute working documents as Internet
     Drafts.
     
     Internet Drafts are draft documents valid for a maximum of six
     months. Internet Drafts may be updated, replaced, or obsoleted
     by other documents at any time.  It is not appropriate to use
     Internet Drafts as reference material or to cite them other
     than as a "working draft" or "work in progress."
     
     Please check the I-D abstract listing contained in each
     Internet Draft directory to learn the current status of this
     or any other Internet Draft.
     
     
     
     
     
     
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     2.  Abstract
     
     This memo defines a portion of the Management Information Base
     (MIB) for use with network management protocols in TCP/IP-
     based internets.  In particular, it defines objects for
     managing the Open Shortest Path First Routing Protocol.
     
     This memo does not, in its draft form, specify a standard for
     the Internet community.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Internet Draft             OSPF MIB                  July 1994
     
     
     3.  The SNMPv2 Network Management Framework
     
     The SNMPv2 Network Management Framework consists of four major
     components.  They are:
     
     o    RFC 1441 which defines the SMI, the mechanisms used for
          describing and naming objects for the purpose of
          management.
     
     o    RFC 1213 defines MIB-II, the core set of managed objects
          for the Internet suite of protocols.
     
     o    RFC 1445 which defines the administrative and other
          architectural aspects of the framework.
     
     o    RFC 1448 which defines the protocol used for network
          access to managed objects.
     
     The Framework permits new objects to be defined for the
     purpose of experimentation and evaluation.
     
     
     3.1.  Object Definitions
     
     Managed objects are accessed via a virtual information store,
     termed the Management Information Base or MIB.  Objects in the
     MIB are defined using the subset of Abstract Syntax Notation
     One (ASN.1) defined in the SMI.  In particular, each object
     object type is named by an OBJECT IDENTIFIER, an
     administratively assigned name.  The object type together with
     an object instance serves to uniquely identify a specific
     instantiation of the object.  For human convenience, we often
     use a textual string, termed the descriptor, to refer to the
     object type.
     
     
     4.  Overview
     
     4.1.  Changes from RFC 1253
     
     The changes from RFC 1253 are the following:
     
     (1)  The textual convention PositiveInteger was changed from
          1..'FFFFFFFF'h to 1..'7FFFFFFF'h at the request of
          Marshall Rose.
     
     
     
     
     
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     (2)  The textual convention TOSType was changed to reflect the
          TOS values defined in the Router Requirements Draft, and
          in accordance with the IP Forwarding Table MIB's values.
     
     (3)  The names of some objects were changed, conforming to the
          convention that an acronym (for example, LSA) is a single
          word ("Lsa") in most SNMP names.
     
     (4)  textual changes were made to make the MIB readable by
          Dave Perkins' SMIC MIB Compiler in addition to Mosy.
          This involved changing the case of some characters in
          certain names and removing the DEFVAL clauses for
          Counters.  (This would appear to violate RFC 1212, which
          explicitly states that DEFVALs are for the purpose of
          initializing read-only objects???)
     
     (5)  The variables ospfAreaStatus and ospfIfStatus were added,
          having been overlooked in the original MIB.
     
     (6)  The range of the variable ospfLsdbType was extended to
          include multicastLink (Group-membership LSA) and
          nssaExternalLink (NSSA LSA).
     
     (7)  The variable ospfIfMetricMetric was renamed
          ospfIfMetricValue, and the following text was removed
          from its description:
     
          "The value FFFF is distinguished to mean 'no route via
          this TOS'."
     
     (8)  The variable ospfNbmaNbrPermanence was added, with the
          values 'dynamic' and 'permanent'; by this means,
          dynamically learned and configured neighbors can be
          distinguished.
     
     (9)  The DESCRIPTION of the variable ospfNbrIpAddr was changed
          from
     
          "The IP address of this neighbor."
     
          to
     
          "The IP address this neighbor is using in its IP Source
          Address.  Note that, on addressless links, this will not
          be 0.0.0.0, but the address of another of the neighbor's
     
     
     
     
     
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          interfaces."
     
          This is by way of clarification and does not change the
          specification.
     
     (10) The OSPF External Link State Database was added.  The
          OSPF Link State Database used to display all LSAs stored;
          in this MIB, it displays all but the AS External LSAs.
          This is because there are usually a large number of
          External LSAs, and they are relicated in all non-Stub
          Areas.
     
     (11) The variable ospfAreaSummary was added to control the
          import of summary LSAs into stub areas.  If it is
          noAreaSummary (default) the router will neither originate
          nor propagate summary LSAs into the stub area.  It will
          rely entirely on its default route.  If it is
          sendAreaSummary, the router will both summarize and
          propagate summary LSAs.
     
     (12) The general variable ospfExtLsdbLimit was introduced to
          help handle LSDB overflow.
     
     (13) The use of the IP Forwarding Table is defined.
     
     (14) The ospfAreaRangeTable was obsoleted and replaced with
          the ospfAreaAggregateTable to accommodate two additional
          indexes.  The ospfAreaAggregateEntry keys now include a
          LsdbType (which can be used to differentiate between the
          traditional type-3 Aggregates and NSSA Aggregates) and an
          ospfAreaAggregateMask (which will more clearly express
          the range).
     
     (15) The variable ospfAreaAggregateEffect was added.  This
          permits the network manager to hide a subnet within an
          area.
     
     (16) Normally, the border router of a stub area advertises a
          default route as an OSPF network summary.  An NSSA border
          router will generate a type-7 LSA indicating a default
          route, and import it into the NSSA.  ospfStubMetricType
          (ospf internal, type 1 external, or type 2 external)
          indicates the type of the default metric advertised.
     
     
     
     
     
     
     
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     (17) ospfMulticastExtensions is added to the OSPF General
          Group.  This indicates the router's ability to forward IP
          multicast (Class D) datagrams.
     
     (18) ospfIfMulticastForwarding is added to the Interface
          Group.  It indicates whether, and if so, how, multicasts
          should be forwarded on the interface.
     
     (19) The MIB is converted to SNMP Version 2.  Beyond simple
          text changes and the addition of the MODULE-IDENTITY and
          MODULE-COMPLIANCE macros, this involved trading the
          TruthValue Textual Convention for SNMP Version 2's, which
          has the same values, and trading the Validation Textual
          Convention for SNMP Version 2's RowStatus.
     
     (20) ospfAreaAuthType has an additional value assigned, to
          indicate the use of MD5 for authentication.
     
     (21) ospfIfIntfType has a new value, pointToMultipoint.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     4.2.  Textual Conventions
     
     Several new data types are introduced as a textual convention
     in this MIB document.  These textual conventions enhance the
     readability of the specification and can ease comparison with
     other specifications if appropriate.  It should be noted that
     the introduction of the these textual conventions has no
     effect on either the syntax nor the semantics of any managed
     objects.  The use of these is merely an artifact of the
     explanatory method used.  Objects defined in terms of one of
     these methods are always encoded by means of the rules that
     define the primitive type.  Hence, no changes to the SMI or
     the SNMP are necessary to accommodate these textual
     conventions which are adopted merely for the convenience of
     readers and writers in pursuit of the elusive goal of clear,
     concise, and unambiguous MIB documents.
     
     The new data types are AreaID, RouterID, TOSType, Metric,
     BigMetric, Status, PositiveInteger, HelloRange, UpToMaxAge,
     InterfaceIndex, and DesignatedRouterPriority.
     
     4.3.  Structure of MIB
     
     The MIB is composed of the following sections:
          General Variables
          Area Data Structure
          Area Stub Metric Table
          Link State Database
          Address Range Table
          Host Table
          Interface Table
          Interface Metric Table
          Virtual Interface Table
          Neighbor Table
          Virtual Neighbor Table
          External Link State Database
          Aggregate Range Table
     
     There exists a separate MIB for notifications ("traps"), which
     is entirely optional.
     
     4.3.1.  General Variables
     
     The General Variables are about what they sound like;
     variables which are global to the OSPF Process.
     
     
     
     
     
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     4.3.2.  Area Data Structure and Area Stub Metric Table
     
     The Area Data Structure describes the OSPF Areas that the
     router participates in.  The Area Stub Metric Table describes
     the metrics advertised into a stub area by the default
     router(s).
     
     4.3.3.  Link State Database and External Link State Database
     
     The Link State Database is provided primarily to provide
     detailed information for network debugging.
     
     4.3.4.  Address Table and Host Tables
     
     The Address Range Table and Host Table are provided to view
     configured Network Summary and Host Route information.
     
     4.3.5.  Interface and Interface Metric Tables
     
     The Interface Table and the Interface Metric Table together
     describe the various IP interfaces to OSPF.  The metrics are
     placed in separate tables in order to simplify dealing with
     multiple types of service, and to provide flexibility in the
     event that the IP TOS definition is changed in the future.  A
     Default Value specification is supplied for the TOS 0
     (default) metric.
     
     4.3.6.  Virtual Interface Table
     
     Likewise, the Virtual Interface Table describe virtual links
     to the OSPF Process.
     
     4.3.7.  Neighbor and Virtual Neighbor Tables
     
     The Neighbor Table and the Virtual Neighbor Table describe the
     neighbors to the OSPF Process.
     
     4.4.  Conceptual Row Creation
     
     For the benefit of row-creation in "conceptual" (see [9])
     tables, DEFVAL (Default Value) clauses are included in the
     definitions in section 5, suggesting values which an agent
     should use for instances of variables which need to be created
     due to a Set-Request, but which are not specified in the Set-
     Request.  DEFVAL clauses have not been specified for some
     
     
     
     
     
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     objects which are read-only, implying that they are zeroed
     upon row creation.  These objects are of the SYNTAX Counter32
     or Gauge32.
     
     For those objects not having a DEFVAL clause, both management
     stations and agents should heed the Robustness Principle of
     the Internet (see RFC-791):
     
          "be liberal in what you accept, conservative in what you
          send"
     
     That is, management stations should include as many of these
     columnar objects as possible (e.g., all read-write objects) in
     a Set-Request when creating a conceptual row; agents should
     accept a Set-Request with as few of these as they need (e.g.,
     the minimum contents of a row creating SET consists of those
     objects for which, as they cannot be intuited, no default is
     specified.).
     
     There are numerous read-write objects in this MIB, as it is
     designed for SNMP management of the protocol, not just SNMP
     monitoring of its state.  However, in the absence of a
     standard SNMP Security architecture, it is acceptable for
     implementations to implement these as read-only with an
     alternative interface for their modification.
     
     4.5.  Default Configuration
     
     OSPF is a powerful routing protocol, equipped with features to
     handle virtually any configuration requirement that might
     reasonably be found within an Autonomous System.  With this
     power comes a fair degree of complexity, which the sheer
     number of objects in the MIB will attest to.  Care has
     therefore been taken, in constructing this MIB, to define
     default values for virtually every object, to minimize the
     amount of parameterization required in the typical case.  That
     default configuration is as follows:
     
     Given the following assumptions:
     
     -    IP has already been configured
     
     -    The ifTable has already been configured
     
     
     
     
     
     
     
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     -    ifSpeed is estimated by the interface drivers
     
     -    The OSPF Process automatically discovers all IP
          Interfaces and creates corresponding OSPF Interfaces
     
     -    The TOS 0 metrics are autonomously derived from ifSpeed
     
     -    The OSPF Process automatically creates the Areas required
          for the Interfaces
     
     The simplest configuration of an OSPF process requires that:
     
     -    The OSPF Process be Enabled.
     
     This can be accomplished with a single SET:
                       ospfAdminStat := enabled.
     
     The configured system will have the following attributes:
     
     -    The RouterID will be one of the IP addresses of the
          device
     
     -    The device will be neither an Area Border Router nor an
          Autonomous System Border Router.
     
     -    Every IP Interface, with or without an address, will be
          an OSPF Interface.
     
     -    The AreaID of each interface will be 0.0.0.0, the
          Backbone.
     
     -    Authentication will be disabled
     
     -    All Broadcast and Point to Point interfaces will be
          operational.  NBMA Interfaces require the configuration
          of at least one neighbor.
     
     -    Timers on all direct interfaces will be:
               Hello Interval:        10 seconds
               Dead Timeout:          40 Seconds
               Retransmission:         5 Seconds
               Transit Delay:          1 Second
               Poll Interval:        120 Seconds
     
     
     
     
     
     
     
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     -    no direct links to hosts will be configured.
     
     -    no addresses will be summarized
     
     -    Metrics, being a measure of bit duration, are unambiguous
          and intelligent.
     
     -    No Virtual Links will be configured.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     5.  Definitions
     
     OSPF-MIB DEFINITIONS ::= BEGIN
     
         IMPORTS
                 MODULE-IDENTITY, OBJECT-TYPE, Counter32, Gauge32,
                 Integer32, IpAddress
                     FROM SNMPv2-SMI
                 TEXTUAL-CONVENTION, TruthValue, RowStatus
                     FROM SNMPv2-TC
                 MODULE-COMPLIANCE, OBJECT-GROUP          FROM SNMPv2-CONF
                 mib-2                                    FROM RFC1213-MIB;
     
     --  This MIB module uses the extended OBJECT-TYPE macro as
     --  defined in [9].
     
     ospf MODULE-IDENTITY
             LAST-UPDATED "9407141743Z"      -- Thu Jul 14 17:43:27 PDT 1994
             ORGANIZATION "IETF OSPF Working Group"
             CONTACT-INFO
            "       Fred Baker
            Postal: Advanced Computer Communications
                    315 Bollay Drive
                    Santa Barbara, California 93117
            Tel:    +1 085 685 4455
            E-Mail: fbaker@acc.com
     
                    Rob Coltun
            Postal: RainbowBridge Communications
            Tel:    (301) 340-9416
            E-Mail: rcoltun@rainbow-bridge.com"
         DESCRIPTION
            "The MIB module to describe the OSPF Version 2
            Protocol"
         ::= { mib-2 14 }
     
     --  The Area ID, in OSPF, has the same format as an IP Address,
     --  but has the function of defining a summarization point for
     --  Link State Advertisements
     
     AreaID ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "An OSPF Area Identifier."
         SYNTAX      IpAddress
     
     
     
     
     
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     --  The Router ID, in OSPF, has the same format as an IP Address,
     --  but identifies the router independent of its IP Address.
     
     RouterID ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "A OSPF Router Identifier."
         SYNTAX      IpAddress
     
     
     --  The OSPF Metric is defined as an unsigned value in the range
     
     Metric ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "The OSPF Internal Metric."
         SYNTAX      Integer32 (1..'FFFF'h)
     
     BigMetric ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "The OSPF External Metric."
         SYNTAX      Integer32 (1..'FFFFFF'h)
     
     --  Status Values
     
     Status ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "The status of an interface: 'enabled' indicates that
            it is willing to communicate with other OSPF Routers,
            while 'disabled' indicates that it is not."
         SYNTAX      INTEGER { enabled (1), disabled (2) }
     
     --  Time Durations measured in seconds
     
     PositiveInteger ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "A positive integer. Values in excess are precluded as
            unnecessary and prone to interoperability issues."
         SYNTAX      Integer32 (1..'7FFFFFFF'h)
     
     HelloRange ::= TEXTUAL-CONVENTION
         STATUS      current
     
     
     
     
     
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         DESCRIPTION
            "The range of intervals on which hello messages are
            exchanged."
         SYNTAX      Integer32 (1..'FFFF'h)
     
     UpToMaxAge ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "The values that one might find or configure for
            variables bounded by the maximum age of an LSA."
         SYNTAX      Integer32 (1..3600)
     
     
     --  The range of ifIndex
     
     InterfaceIndex ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "The range of ifIndex."
         SYNTAX      Integer32
     
     
     --  Potential Priorities for the Designated Router Election
     
     DesignatedRouterPriority ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "The values defined for the priority of a system for
            becoming the designated router."
         SYNTAX      Integer32 (0..'FF'h)
     
     TOSType ::= TEXTUAL-CONVENTION
         STATUS      current
         DESCRIPTION
            "Type of Service is defined as a mapping to the IP Type of
            Service Flags as defined in the IP Forwarding Table MIB
     
            +-----+-----+-----+-----+-----+-----+-----+-----+
            |                 |                       |     |
            |   PRECEDENCE    |    TYPE OF SERVICE    |  0  |
            |                 |                       |     |
            +-----+-----+-----+-----+-----+-----+-----+-----+
     
                     IP TOS                IP TOS
                Field     Policy      Field     Policy
     
     
     
     
     
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                Contents    Code      Contents    Code
                0 0 0 0  ==>   0      0 0 0 1  ==>   2
                0 0 1 0  ==>   4      0 0 1 1  ==>   6
                0 1 0 0  ==>   8      0 1 0 1  ==>  10
                0 1 1 0  ==>  12      0 1 1 1  ==>  14
                1 0 0 0  ==>  16      1 0 0 1  ==>  18
                1 0 1 0  ==>  20      1 0 1 1  ==>  22
                1 1 0 0  ==>  24      1 1 0 1  ==>  26
                1 1 1 0  ==>  28      1 1 1 1  ==>  30
     
            The remaining values are left for future definition."
         SYNTAX      Integer32 (0..30)
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF General Variables
     
     --      These parameters apply globally to the Router's
     --      OSPF Process.
     
     ospfGeneralGroup OBJECT IDENTIFIER ::= { ospf 1 }
     
     
         ospfRouterId OBJECT-TYPE
             SYNTAX   RouterID
             MAX-ACCESS   read-write
             STATUS   current
             DESCRIPTION
                "A  32-bit  integer  uniquely  identifying  the
                router in the Autonomous System.
     
                By  convention,  to  ensure  uniqueness,   this
                should  default  to  the  value  of  one of the
                router's IP interface addresses."
            REFERENCE
               "OSPF Version 2, C.1 Global parameters"
           ::= { ospfGeneralGroup 1 }
     
     
         ospfAdminStat OBJECT-TYPE
             SYNTAX   Status
             MAX-ACCESS   read-write
             STATUS   current
             DESCRIPTION
                "The  administrative  status  of  OSPF  in  the
                router.   The  value 'enabled' denotes that the
                OSPF Process is active on at least  one  inter-
                face;  'disabled'  disables  it  on  all inter-
                faces."
            ::= { ospfGeneralGroup 2 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVersionNumber OBJECT-TYPE
             SYNTAX   INTEGER    { version2 (2) }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The current version number of the OSPF  proto-
                col is 2."
            REFERENCE
               "OSPF Version 2, Title"
           ::= { ospfGeneralGroup 3 }
     
     
         ospfAreaBdrRtrStatus OBJECT-TYPE
             SYNTAX   TruthValue
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "A flag to note whether this router is an  area
                border router."
            REFERENCE
               "OSPF Version 2, Section 3 Splitting the AS into
               Areas"
           ::= { ospfGeneralGroup 4 }
     
     
         ospfASBdrRtrStatus OBJECT-TYPE
             SYNTAX   TruthValue
             MAX-ACCESS   read-write
             STATUS   current
             DESCRIPTION
                "A flag to note whether this router is  config-
                ured as an Autonomous System border router."
            REFERENCE
               "OSPF Version 2, Section 3.3  Classification  of
               routers"
           ::= { ospfGeneralGroup 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfExternLsaCount OBJECT-TYPE
             SYNTAX   Gauge32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of external (LS type 5)  link-state
                advertisements in the link-state database."
            REFERENCE
               "OSPF Version 2, Appendix A.4.5 AS external link
               advertisements"
           ::= { ospfGeneralGroup 6 }
     
     
         ospfExternLsaCksumSum OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The 32-bit unsigned sum of the LS checksums of
                the  external  link-state  advertisements  con-
                tained in the link-state  database.   This  sum
                can  be  used  to determine if there has been a
                change in a router's link state  database,  and
                to  compare  the  link-state  database  of  two
                routers."
            ::= { ospfGeneralGroup 7 }
     
     
         ospfTOSSupport OBJECT-TYPE
             SYNTAX   TruthValue
             MAX-ACCESS   read-write
             STATUS   current
             DESCRIPTION
                "The router's support for type-of-service rout-
                ing."
            REFERENCE
               "OSPF Version 2,  Appendix  F.1.2  Optional  TOS
               support"
           ::= { ospfGeneralGroup 8 }
     
     
     
     
     
     
     
     
     
     
     
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         ospfOriginateNewLsas OBJECT-TYPE
             SYNTAX   Counter32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of  new  link-state  advertisements
                that  have been originated.  This number is in-
                cremented each time the router originates a new
                LSA."
            ::= { ospfGeneralGroup 9 }
     
     
         ospfRxNewLsas OBJECT-TYPE
             SYNTAX   Counter32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of  link-state  advertisements  re-
                ceived  determined  to  be  new instantiations.
                This number does not include  newer  instantia-
                tions  of self-originated link-state advertise-
                ments."
            ::= { ospfGeneralGroup 10 }
     
     
         ospfExtLsdbLimit OBJECT-TYPE
             SYNTAX   Integer32 (-1..'7FFFFFFF'h)
             MAX-ACCESS   read-write
             STATUS   current
             DESCRIPTION
                "The maximum number of external link-state  en-
                tries  that can be stored in the link-state da-
                tabase.  If the value is -1, then there  is  no
                limit."
            DEFVAL { -1 }
            ::= { ospfGeneralGroup 11 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfMulticastExtensions OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-write
             STATUS   current
             DESCRIPTION
                "A Bit Mask indicating whether  the  router  is
                forwarding  IP  multicast  (Class  D) datagrams
                based on the algorithms defined in  the  Multi-
                cast Extensions to OSPF.
     
                Bit 0, if set, indicates that  the  router  can
                forward  IP multicast datagrams in the router's
                directly attached areas (called intra-area mul-
                ticast routing).
     
                Bit 1, if set, indicates that  the  router  can
                forward  IP  multicast  datagrams  between OSPF
                areas (called inter-area multicast routing).
     
                Bit 2, if set, indicates that  the  router  can
                forward  IP  multicast  datagrams between Auto-
                nomous Systems (called inter-AS multicast rout-
                ing).
     
                Only certain combinations of bit  settings  are
                allowed,  namely: 0 (no multicast forwarding is
                enabled), 1 (intra-area multicasting  only),  3
                (intra-area  and  inter-area  multicasting),  5
                (intra-area and inter-AS  multicasting)  and  7
                (multicasting  everywhere). By default, no mul-
                ticast forwarding is enabled."
            DEFVAL { 0 }
            ::= { ospfGeneralGroup 12 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --      The OSPF Area Data Structure contains information
     --      regarding the various areas. The interfaces and
     --      virtual links are configured as part of these areas.
     --      Area 0.0.0.0, by definition, is the Backbone Area
     
     
         ospfAreaTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfAreaEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "Information describing the configured  parame-
                ters  and cumulative statistics of the router's
                attached areas."
            REFERENCE
               "OSPF Version 2, Section 6  The Area Data Struc-
               ture"
           ::= { ospf 2 }
     
     
         ospfAreaEntry OBJECT-TYPE
             SYNTAX   OspfAreaEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "Information describing the configured  parame-
                ters  and  cumulative  statistics of one of the
                router's attached areas."
            INDEX { ospfAreaId }
            ::= { ospfAreaTable 1 }
     
     OspfAreaEntry ::=
         SEQUENCE {
             ospfAreaId
                 AreaID,
             ospfAuthType
                 Integer32,
             ospfImportAsExtern
                 INTEGER,
             ospfSpfRuns
                 Counter32,
             ospfAreaBdrRtrCount
                 Gauge32,
             ospfAsBdrRtrCount
                 Gauge32,
     
     
     
     
     
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             ospfAreaLsaCount
                 Gauge32,
             ospfAreaLsaCksumSum
                 Integer32,
             ospfAreaSummary
                 INTEGER,
             ospfAreaStatus
                 RowStatus
                   }
     
         ospfAreaId OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "A 32-bit integer uniquely identifying an area.
                Area ID 0.0.0.0 is used for the OSPF backbone."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfAreaEntry 1 }
     
     
         ospfAuthType OBJECT-TYPE
             SYNTAX   Integer32
                         -- none (0),
                         -- simplePassword (1)
                         -- md5 (2)
                         -- reserved for specification by IANA (> 2)
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The authentication type specified for an area.
                Additional authentication types may be assigned
                locally on a per Area basis."
            REFERENCE
               "OSPF Version 2, Appendix E Authentication"
           DEFVAL { 0 }        -- no authentication, by default
           ::= { ospfAreaEntry 2 }
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfImportAsExtern OBJECT-TYPE
             SYNTAX   INTEGER    {
                         importExternal (1),
                         importNoExternal (2),
                         importNssa (3)
                       }
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The area's support for importing  AS  external
                link- state advertisements."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           DEFVAL { importExternal }
           ::= { ospfAreaEntry 3 }
     
     
         ospfSpfRuns OBJECT-TYPE
             SYNTAX   Counter32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of times that the intra-area  route
                table  has  been  calculated  using this area's
                link-state database.  This  is  typically  done
                using Dijkstra's algorithm."
            ::= { ospfAreaEntry 4 }
     
     
         ospfAreaBdrRtrCount OBJECT-TYPE
             SYNTAX   Gauge32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The total number of area border routers reach-
                able within this area.  This is initially zero,
                and is calculated in each SPF Pass."
            ::= { ospfAreaEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfAsBdrRtrCount OBJECT-TYPE
             SYNTAX   Gauge32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The total number of Autonomous  System  border
                routers  reachable  within  this area.  This is
                initially zero, and is calculated in  each  SPF
                Pass."
            ::= { ospfAreaEntry 6 }
     
     
         ospfAreaLsaCount OBJECT-TYPE
             SYNTAX   Gauge32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The total number of link-state  advertisements
                in  this  area's link-state database, excluding
                AS External LSA's."
            ::= { ospfAreaEntry 7 }
     
     
         ospfAreaLsaCksumSum OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The 32-bit unsigned sum of the link-state  ad-
                vertisements'  LS  checksums  contained in this
                area's link-state database.  This sum  excludes
                external (LS type 5) link-state advertisements.
                The sum can be used to determine if  there  has
                been  a  change  in a router's link state data-
                base, and to compare the link-state database of
                two routers."
            DEFVAL   { 0 }
            ::= { ospfAreaEntry 8 }
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfAreaSummary OBJECT-TYPE
             SYNTAX   INTEGER    {
                         noAreaSummary (1),
                         sendAreaSummary (2)
                       }
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The variable ospfAreaSummary controls the  im-
                port  of  summary LSAs into stub areas.  It has
                no effect on other areas.
     
                If it is noAreaSummary, the router will neither
                originate  nor  propagate summary LSAs into the
                stub area.  It will rely entirely  on  its  de-
                fault route.
     
                If it is sendAreaSummary, the router will  both
                summarize and propagate summary LSAs."
            DEFVAL   { noAreaSummary }
            ::= { ospfAreaEntry 9 }
     
     
         ospfAreaStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfAreaEntry 10 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Area Default Metric Table
     
     --      The OSPF Area Default Metric Table describes the metrics
     --      that a default Area Border Router will advertise into a
     --      Stub area.
     
     
         ospfStubAreaTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfStubAreaEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The set of metrics that will be advertised  by
                a default Area Border Router into a stub area."
            REFERENCE
               "OSPF Version 2, Appendix C.2, Area Parameters"
           ::= { ospf 3 }
     
     
         ospfStubAreaEntry OBJECT-TYPE
             SYNTAX   OspfStubAreaEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The metric for a given Type  of  Service  that
                will  be  advertised  by  a default Area Border
                Router into a stub area."
            REFERENCE
               "OSPF Version 2, Appendix C.2, Area Parameters"
           INDEX { ospfStubAreaId, ospfStubTOS }
           ::= { ospfStubAreaTable 1 }
     
     OspfStubAreaEntry ::=
         SEQUENCE {
             ospfStubAreaId
                 AreaID,
             ospfStubTOS
                 TOSType,
             ospfStubMetric
                 BigMetric,
             ospfStubStatus
                 RowStatus,
             ospfStubMetricType
                 INTEGER
                   }
     
     
     
     
     
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         ospfStubAreaId OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The 32 bit identifier for the Stub  Area.   On
                creation,  this  can  be  derived  from the in-
                stance."
            ::= { ospfStubAreaEntry 1 }
     
     
         ospfStubTOS OBJECT-TYPE
             SYNTAX   TOSType
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The  Type  of  Service  associated  with   the
                metric.   On creation, this can be derived from
                the instance."
            ::= { ospfStubAreaEntry 2 }
     
     
         ospfStubMetric OBJECT-TYPE
             SYNTAX   BigMetric
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The metric value applied at the indicated type
                of  service.  By default, this equals the least
                metric at the type of service among the  inter-
                faces to other areas."
            ::= { ospfStubAreaEntry 3 }
     
     
         ospfStubStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfStubAreaEntry 4 }
     
     
     
     
     
     
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         ospfStubMetricType OBJECT-TYPE
             SYNTAX   INTEGER    {
                         ospfMetric (1),                -- OSPF Metric
                         comparableCost (2),        -- external type 1
                         nonComparable  (3)        -- external type 2
                       }
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the type of metric  ad-
                vertised as a default route."
            DEFVAL   { ospfMetric }
            ::= { ospfStubAreaEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Link State Database
     
     --      The Link State Database contains the Link State
     --      Advertisements from throughout the areas that the
     --      device is attached to.
     
     
         ospfLsdbTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfLsdbEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The OSPF Process's Link State Database."
            REFERENCE
               "OSPF Version 2, Section 12  Link  State  Adver-
               tisements"
           ::= { ospf 4 }
     
     
         ospfLsdbEntry OBJECT-TYPE
             SYNTAX   OspfLsdbEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A single Link State Advertisement."
            INDEX { ospfLsdbAreaId, ospfLsdbType,
                    ospfLsdbLsid, ospfLsdbRouterId }
            ::= { ospfLsdbTable 1 }
     
     OspfLsdbEntry ::=
         SEQUENCE {
             ospfLsdbAreaId
                 AreaID,
             ospfLsdbType
                 INTEGER,
             ospfLsdbLsid
                 IpAddress,
             ospfLsdbRouterId
                 RouterID,
             ospfLsdbSequence
                 Integer32,
             ospfLsdbAge
                 Integer32,
             ospfLsdbChecksum
                 Integer32,
     
     
     
     
     
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             ospfLsdbAdvertisement
                 OCTET STRING
                   }
     
         ospfLsdbAreaId OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The 32 bit identifier of the Area  from  which
                the LSA was received."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfLsdbEntry 1 }
     
     -- External Link State Advertisements are permitted
     -- for backward compatibility, but should be displayed in
     -- the ospfExtLsdbTable rather than here.
     
         ospfLsdbType OBJECT-TYPE
             SYNTAX   INTEGER    {
                         routerLink (1),
                         networkLink (2),
                         summaryLink (3),
                         asSummaryLink (4),
                         asExternalLink (5), -- but see ospfExtLsdbTable
                         multicastLink (6),
                         nssaExternalLink (7)
                       }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The type  of  the  link  state  advertisement.
                Each  link state type has a separate advertise-
                ment format."
            REFERENCE
               "OSPF Version 2, Appendix A.4.1 The  Link  State
               Advertisement header"
           ::= { ospfLsdbEntry 2 }
     
     
     
     
     
     
     
     
     
     
     
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         ospfLsdbLsid OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The Link State ID is an LS Type Specific field
                containing either a Router ID or an IP Address;
                it identifies the piece of the  routing  domain
                that is being described by the advertisement."
            REFERENCE
               "OSPF Version 2, Section 12.1.4 Link State ID"
           ::= { ospfLsdbEntry 3 }
     
     
         ospfLsdbRouterId OBJECT-TYPE
             SYNTAX   RouterID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The 32 bit number that uniquely identifies the
                originating router in the Autonomous System."
            REFERENCE
               "OSPF Version 2, Appendix C.1 Global parameters"
           ::= { ospfLsdbEntry 4 }
     
     --  Note that the OSPF Sequence Number is a 32 bit signed
     --  integer.  It starts with the value '80000001'h,
     --  or -'7FFFFFFF'h, and increments until '7FFFFFFF'h
     --  Thus, a typical sequence number will be very negative.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfLsdbSequence OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The sequence number field is a  signed  32-bit
                integer.   It  is used to detect old and dupli-
                cate link state advertisements.  The  space  of
                sequence  numbers  is  linearly  ordered.   The
                larger the sequence number the more recent  the
                advertisement."
            REFERENCE
               "OSPF Version  2,  Section  12.1.6  LS  sequence
               number"
           ::= { ospfLsdbEntry 5 }
     
     
         ospfLsdbAge OBJECT-TYPE
             SYNTAX   Integer32    -- Should be 0..MaxAge
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "This field is the age of the link state adver-
                tisement in seconds."
            REFERENCE
               "OSPF Version 2, Section 12.1.1 LS age"
           ::= { ospfLsdbEntry 6 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfLsdbChecksum OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "This field is the  checksum  of  the  complete
                contents  of  the  advertisement, excepting the
                age field.  The age field is excepted  so  that
                an   advertisement's  age  can  be  incremented
                without updating the  checksum.   The  checksum
                used  is  the same that is used for ISO connec-
                tionless datagrams; it is commonly referred  to
                as the Fletcher checksum."
            REFERENCE
               "OSPF Version 2, Section 12.1.7 LS checksum"
           ::= { ospfLsdbEntry 7 }
     
     
         ospfLsdbAdvertisement OBJECT-TYPE
             SYNTAX   OCTET STRING (SIZE (1..65535))
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The entire Link State Advertisement, including
                its header."
            REFERENCE
               "OSPF Version 2, Section 12  Link  State  Adver-
               tisements"
           ::= { ospfLsdbEntry 8 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  Address Range Table
     
     --      The Address Range Table acts as an adjunct to the Area
     --      Table; It describes those Address Range Summaries that
     --      are configured to be propagated from an Area to reduce
     --      the amount of information about it which is known beyond
     --      its borders.
     
         ospfAreaRangeTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfAreaRangeEntry
             MAX-ACCESS   not-accessible
             STATUS   obsolete
             DESCRIPTION
                "A range if IP addresses  specified  by  an  IP
                address/IP  network  mask  pair.   For example,
                class B address range of X.X.X.X with a network
                mask  of  255.255.0.0 includes all IP addresses
                from X.X.0.0 to X.X.255.255"
            REFERENCE
               "OSPF Version 2, Appendix C.2  Area parameters"
           ::= { ospf 5 }
     
     
         ospfAreaRangeEntry OBJECT-TYPE
             SYNTAX   OspfAreaRangeEntry
             MAX-ACCESS   not-accessible
             STATUS   obsolete
             DESCRIPTION
                "A range if IP addresses  specified  by  an  IP
                address/IP  network  mask  pair.   For example,
                class B address range of X.X.X.X with a network
                mask  of  255.255.0.0 includes all IP addresses
                from X.X.0.0 to X.X.255.255"
            REFERENCE
               "OSPF Version 2, Appendix C.2  Area parameters"
           INDEX { ospfAreaRangeAreaId, ospfAreaRangeNet }
           ::= { ospfAreaRangeTable 1 }
     
     OspfAreaRangeEntry ::=
         SEQUENCE {
             ospfAreaRangeAreaId
                 AreaID,
             ospfAreaRangeNet
                 IpAddress,
             ospfAreaRangeMask
     
     
     
     
     
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                 IpAddress,
             ospfAreaRangeStatus
                 RowStatus,
             ospfAreaRangeEffect
                 INTEGER
                   }
     
         ospfAreaRangeAreaId OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   obsolete
             DESCRIPTION
                "The Area the Address  Range  is  to  be  found
                within."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfAreaRangeEntry 1 }
     
     
         ospfAreaRangeNet OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   obsolete
             DESCRIPTION
                "The IP Address of the Net or Subnet  indicated
                by the range."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfAreaRangeEntry 2 }
     
     
         ospfAreaRangeMask OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-create
             STATUS   obsolete
             DESCRIPTION
                "The Subnet Mask that pertains to  the  Net  or
                Subnet."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfAreaRangeEntry 3 }
     
     
     
     
     
     
     
     
     
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         ospfAreaRangeStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   obsolete
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfAreaRangeEntry 4 }
     
     
         ospfAreaRangeEffect OBJECT-TYPE
             SYNTAX   INTEGER    {
                         advertiseMatching (1),
                         doNotAdvertiseMatching (2)
                       }
             MAX-ACCESS   read-create
             STATUS   obsolete
             DESCRIPTION
                "Subnets subsumed by ranges either trigger  the
                advertisement  of the indicated summary (adver-
                tiseMatching), or result in  the  subnet's  not
                being advertised at all outside the area."
            DEFVAL   { advertiseMatching }
            ::= { ospfAreaRangeEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Host Table
     
     --      The Host/Metric Table indicates what hosts are directly
     --      attached to the Router, and what metrics and types of
     --      service should be advertised for them.
     
         ospfHostTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfHostEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The list of Hosts, and their metrics, that the
                router will advertise as host routes."
            REFERENCE
               "OSPF Version 2, Appendix C.6  Host route param-
               eters"
           ::= { ospf 6 }
     
     
         ospfHostEntry OBJECT-TYPE
             SYNTAX   OspfHostEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A metric to be advertised, for a given type of
                service, when a given host is reachable."
            INDEX { ospfHostIpAddress, ospfHostTOS }
            ::= { ospfHostTable 1 }
     
     OspfHostEntry ::=
         SEQUENCE {
             ospfHostIpAddress
                 IpAddress,
             ospfHostTOS
                 TOSType,
             ospfHostMetric
                 Metric,
             ospfHostStatus
                 RowStatus,
             ospfHostAreaID
                 AreaID
                   }
     
     
     
     
     
     
     
     
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         ospfHostIpAddress OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP Address of the Host."
            REFERENCE
               "OSPF Version 2, Appendix C.6 Host route parame-
               ters"
           ::= { ospfHostEntry 1 }
     
     
         ospfHostTOS OBJECT-TYPE
             SYNTAX   TOSType
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The Type of Service of the route being config-
                ured."
            REFERENCE
               "OSPF Version 2, Appendix C.6 Host route parame-
               ters"
           ::= { ospfHostEntry 2 }
     
     
         ospfHostMetric OBJECT-TYPE
             SYNTAX   Metric
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The Metric to be advertised."
            REFERENCE
               "OSPF Version 2, Appendix C.6 Host route parame-
               ters"
           ::= { ospfHostEntry 3 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfHostStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfHostEntry 4 }
     
     
         ospfHostAreaID OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The Area the Host Entry is to be found within.
                By  default, the area that a subsuming OSPF in-
                terface is in, or 0.0.0.0"
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfHostEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Interface Table
     
     --      The OSPF Interface Table augments the ipAddrTable
     --             with OSPF specific information.
     
         ospfIfTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfIfEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The OSPF Interface Table describes the  inter-
                faces from the viewpoint of OSPF."
            REFERENCE
               "OSPF Version 2, Appendix C.3  Router  interface
               parameters"
           ::= { ospf 7 }
     
     
         ospfIfEntry OBJECT-TYPE
             SYNTAX   OspfIfEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The OSPF Interface Entry describes one  inter-
                face from the viewpoint of OSPF."
            INDEX { ospfIfIpAddress, ospfAddressLessIf }
            ::= { ospfIfTable 1 }
     
     OspfIfEntry ::=
         SEQUENCE {
             ospfIfIpAddress
                 IpAddress,
             ospfAddressLessIf
                 Integer32,
             ospfIfAreaId
                 AreaID,
             ospfIfType
                 INTEGER,
             ospfIfAdminStat
                 Status,
             ospfIfRtrPriority
                 DesignatedRouterPriority,
             ospfIfTransitDelay
                 UpToMaxAge,
             ospfIfRetransInterval
     
     
     
     
     
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                 UpToMaxAge,
             ospfIfHelloInterval
                 HelloRange,
             ospfIfRtrDeadInterval
                 PositiveInteger,
             ospfIfPollInterval
                 PositiveInteger,
             ospfIfState
                 INTEGER,
             ospfIfDesignatedRouter
                 IpAddress,
             ospfIfBackupDesignatedRouter
                 IpAddress,
             ospfIfEvents
                 Counter32,
             ospfIfAuthKey
                 OCTET STRING,
             ospfIfStatus
                 RowStatus,
             ospfIfMulticastForwarding
                 INTEGER
                   }
     
         ospfIfIpAddress OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP address of this OSPF interface."
            ::= { ospfIfEntry 1 }
     
     
         ospfAddressLessIf OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "For the purpose of easing  the  instancing  of
                addressed   and  addressless  interfaces;  This
                variable takes the value 0 on  interfaces  with
                IP  Addresses,  and  the corresponding value of
                ifIndex for interfaces having no IP Address."
            ::= { ospfIfEntry 2 }
     
     
     
     
     
     
     
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         ospfIfAreaId OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "A 32-bit integer uniquely identifying the area
                to  which  the  interface  connects.   Area  ID
                0.0.0.0 is used for the OSPF backbone."
            DEFVAL   { '00000000'H }    -- 0.0.0.0
            ::= { ospfIfEntry 3 }
     
     
         ospfIfType OBJECT-TYPE
             SYNTAX   INTEGER    {
                         broadcast (1),
                         nbma (2),
                         pointToPoint (3),
                         pointToMultipoint (4)
                       }
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The OSPF interface type.
     
                By way of a default, this field may be intuited
                from the corresponding value of ifType.  Broad-
                cast LANs, such as  Ethernet  and  IEEE  802.5,
                take  the  value  'broadcast', X.25 and similar
                technologies take the value 'nbma',  and  links
                that  are  definitively point to point take the
                value 'pointToPoint'."
            ::= { ospfIfEntry 4 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfAdminStat OBJECT-TYPE
             SYNTAX   Status
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The OSPF  interface's  administrative  status.
                The  value formed on the interface, and the in-
                terface will be advertised as an internal route
                to  some  area.   The  value 'disabled' denotes
                that the interface is external to OSPF."
            DEFVAL { enabled }
            ::= { ospfIfEntry 5 }
     
     
         ospfIfRtrPriority OBJECT-TYPE
             SYNTAX   DesignatedRouterPriority
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The  priority  of  this  interface.   Used  in
                multi-access  networks,  this  field is used in
                the designated router election algorithm.   The
                value 0 signifies that the router is not eligi-
                ble to become the  designated  router  on  this
                particular  network.   In the event of a tie in
                this value, routers will use their Router ID as
                a tie breaker."
            DEFVAL { 1 }
            ::= { ospfIfEntry 6 }
     
     
         ospfIfTransitDelay OBJECT-TYPE
             SYNTAX   UpToMaxAge
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The estimated number of seconds  it  takes  to
                transmit  a  link state update packet over this
                interface."
            DEFVAL { 1 }
            ::= { ospfIfEntry 7 }
     
     
     
     
     
     
     
     
     
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         ospfIfRetransInterval OBJECT-TYPE
             SYNTAX   UpToMaxAge
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The number of seconds between  link-state  ad-
                vertisement  retransmissions,  for  adjacencies
                belonging to this  interface.   This  value  is
                also used when retransmitting database descrip-
                tion and link-state request packets."
            DEFVAL { 5 }
            ::= { ospfIfEntry 8 }
     
     
         ospfIfHelloInterval OBJECT-TYPE
             SYNTAX   HelloRange
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The length of time, in  seconds,  between  the
                Hello  packets that the router sends on the in-
                terface.  This value must be the same  for  all
                routers attached to a common network."
            DEFVAL { 10 }
            ::= { ospfIfEntry 9 }
     
     
         ospfIfRtrDeadInterval OBJECT-TYPE
             SYNTAX   PositiveInteger
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The number of seconds that  a  router's  Hello
                packets  have  not been seen before it's neigh-
                bors declare the router down.  This  should  be
                some  multiple  of  the  Hello  interval.  This
                value must be the same for all routers attached
                to a common network."
            DEFVAL { 40 }
            ::= { ospfIfEntry 10 }
     
     
     
     
     
     
     
     
     
     
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         ospfIfPollInterval OBJECT-TYPE
             SYNTAX   PositiveInteger
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The larger time interval, in seconds,  between
                the  Hello  packets  sent  to  an inactive non-
                broadcast multi- access neighbor."
            DEFVAL { 120 }
            ::= { ospfIfEntry 11 }
     
     
         ospfIfState OBJECT-TYPE
             SYNTAX   INTEGER    {
                         down (1),
                         loopback (2),
                         waiting (3),
                         pointToPoint (4),
                         designatedRouter (5),
                         backupDesignatedRouter (6),
                         otherDesignatedRouter (7)
                       }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The OSPF Interface State."
            DEFVAL { down }
            ::= { ospfIfEntry 12 }
     
     
         ospfIfDesignatedRouter OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP Address of the Designated Router."
            DEFVAL   { '00000000'H }    -- 0.0.0.0
            ::= { ospfIfEntry 13 }
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfBackupDesignatedRouter OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The  IP  Address  of  the  Backup   Designated
                Router."
            DEFVAL   { '00000000'H }    -- 0.0.0.0
            ::= { ospfIfEntry 14 }
     
     
         ospfIfEvents OBJECT-TYPE
             SYNTAX   Counter32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of times this  OSPF  interface  has
                changed its state, or an error has occurred."
            ::= { ospfIfEntry 15 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfAuthKey OBJECT-TYPE
             SYNTAX   OCTET STRING (SIZE (0..256))
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The Authentication Key.  If the Area's Author-
                ization  Type  is  simplePassword,  and the key
                length is shorter than 8 octets, the agent will
                left adjust and zero fill to 8 octets.
     
                Note that unauthenticated  interfaces  need  no
                authentication key, and simple password authen-
                tication cannot use a key of more  than  8  oc-
                tets.  Larger keys are useful only with authen-
                tication mechanisms not specified in this docu-
                ment.
     
                When read, ospfIfAuthKey always returns an  Oc-
                tet String of length zero."
            REFERENCE
               "OSPF Version 2, Section 9  The  Interface  Data
               Structure"
           DEFVAL   { '0000000000000000'H }    -- 0.0.0.0.0.0.0.0
           ::= { ospfIfEntry 16 }
     
     
         ospfIfStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfIfEntry 17 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfMulticastForwarding OBJECT-TYPE
             SYNTAX   INTEGER    {
                                 blocked (1),        -- no multicast forwarding
                                 multicast (2),        -- using multicast address
                                 unicast (3)        -- to each OSPF neighbor
                       }
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The way multicasts should  forwarded  on  this
                interface;  not  forwarded,  forwarded  as data
                link multicasts, or forwarded as data link uni-
                casts.   Data link multicasting is not meaning-
                ful on point to point and NBMA interfaces,  and
                setting ospfMulticastForwarding to 0 effective-
                ly disables all multicast forwarding."
            DEFVAL { blocked }
            ::= { ospfIfEntry 18 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Interface Metric Table
     
     --      The Metric Table describes the metrics to be advertised
     --      for a specified interface at the various types of service.
     --      As such, this table is an adjunct of the OSPF Interface
     --      Table.
     
     -- Types of service, as defined by RFC 791, have the ability
     -- to request low delay, high bandwidth, or reliable linkage.
     
     -- For the purposes of this specification, the measure of
     -- bandwidth
     
     --      Metric = 10^8 / ifSpeed
     
     -- is the default value.  For multiple link interfaces, note
     -- that ifSpeed is the sum of the individual link speeds.
     -- This yields a number having the following typical values:
     
     --      Network Type/bit rate   Metric
     
     --      >= 100 MBPS                 1
     --      Ethernet/802.3             10
     --      E1                         48
     --      T1 (ESF)                   65
     --       64 KBPS                 1562
     --       56 KBPS                 1785
     --       19.2 KBPS               5208
     --        9.6 KBPS              10416
     
     -- Routes that are not specified use the default (TOS 0) metric
     
         ospfIfMetricTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfIfMetricEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The TOS metrics for  a  non-virtual  interface
                identified by the interface index."
            REFERENCE
               "OSPF Version 2, Appendix C.3  Router  interface
               parameters"
           ::= { ospf 8 }
     
     
     
     
     
     
     
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         ospfIfMetricEntry OBJECT-TYPE
             SYNTAX   OspfIfMetricEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A particular TOS metric for a non-virtual  in-
                terface identified by the interface index."
            REFERENCE
               "OSPF Version 2, Appendix C.3  Router  interface
               parameters"
           INDEX { ospfIfMetricIpAddress,
       ospfIfMetricAddressLessIf,
       ospfIfMetricTOS }
           ::= { ospfIfMetricTable 1 }
     
     OspfIfMetricEntry ::=
         SEQUENCE {
             ospfIfMetricIpAddress
                 IpAddress,
             ospfIfMetricAddressLessIf
                 Integer32,
             ospfIfMetricTOS
                 TOSType,
             ospfIfMetricValue
                 Metric,
             ospfIfMetricStatus
                 RowStatus
                   }
     
         ospfIfMetricIpAddress OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP address of this OSPF interface.  On row
                creation,  this  can  be  derived  from the in-
                stance."
            ::= { ospfIfMetricEntry 1 }
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfMetricAddressLessIf OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "For the purpose of easing  the  instancing  of
                addressed   and  addressless  interfaces;  This
                variable takes the value 0 on  interfaces  with
                IP  Addresses, and the value of ifIndex for in-
                terfaces having no IP Address.   On  row  crea-
                tion, this can be derived from the instance."
            ::= { ospfIfMetricEntry 2 }
     
     
         ospfIfMetricTOS OBJECT-TYPE
             SYNTAX   TOSType
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The type of service metric  being  referenced.
                On  row  creation, this can be derived from the
                instance."
            ::= { ospfIfMetricEntry 3 }
     
     
         ospfIfMetricValue OBJECT-TYPE
             SYNTAX   Metric
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The metric of using this type  of  service  on
                this interface.  The default value of the TOS 0
                Metric is 10^8 / ifSpeed."
            ::= { ospfIfMetricEntry 4 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfMetricStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfIfMetricEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Virtual Interface Table
     
     --      The Virtual Interface Table describes the virtual
     --      links that the OSPF Process is configured to
     --      carry on.
     
         ospfVirtIfTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfVirtIfEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "Information about this router's virtual inter-
                faces."
            REFERENCE
               "OSPF Version  2,  Appendix  C.4   Virtual  link
               parameters"
           ::= { ospf 9 }
     
     
         ospfVirtIfEntry OBJECT-TYPE
             SYNTAX   OspfVirtIfEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "Information about a single Virtual Interface."
            INDEX { ospfVirtIfAreaId, ospfVirtIfNeighbor }
            ::= { ospfVirtIfTable 1 }
     
     OspfVirtIfEntry ::=
         SEQUENCE {
             ospfVirtIfAreaId
                 AreaID,
             ospfVirtIfNeighbor
                 RouterID,
             ospfVirtIfTransitDelay
                 UpToMaxAge,
             ospfVirtIfRetransInterval
                 UpToMaxAge,
             ospfVirtIfHelloInterval
                 HelloRange,
             ospfVirtIfRtrDeadInterval
                 PositiveInteger,
             ospfVirtIfState
                 INTEGER,
             ospfVirtIfEvents
     
     
     
     
     
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                 Counter32,
             ospfVirtIfAuthKey
                 OCTET STRING,
             ospfVirtIfStatus
                 RowStatus
                   }
     
         ospfVirtIfAreaId OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The  Transit  Area  that  the   Virtual   Link
                traverses.  By definition, this is not 0.0.0.0"
            ::= { ospfVirtIfEntry 1 }
     
     
         ospfVirtIfNeighbor OBJECT-TYPE
             SYNTAX   RouterID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The Router ID of the Virtual Neighbor."
            ::= { ospfVirtIfEntry 2 }
     
     
         ospfVirtIfTransitDelay OBJECT-TYPE
             SYNTAX   UpToMaxAge
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The estimated number of seconds  it  takes  to
                transmit  a link- state update packet over this
                interface."
            DEFVAL { 1 }
            ::= { ospfVirtIfEntry 3 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtIfRetransInterval OBJECT-TYPE
             SYNTAX   UpToMaxAge
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The number of seconds between  link-state  ad-
                vertisement  retransmissions,  for  adjacencies
                belonging to this  interface.   This  value  is
                also used when retransmitting database descrip-
                tion  and  link-state  request  packets.   This
                value  should  be well over the expected round-
                trip time."
            DEFVAL { 5 }
            ::= { ospfVirtIfEntry 4 }
     
     
         ospfVirtIfHelloInterval OBJECT-TYPE
             SYNTAX   HelloRange
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The length of time, in  seconds,  between  the
                Hello  packets that the router sends on the in-
                terface.  This value must be the same  for  the
                virtual neighbor."
            DEFVAL { 10 }
            ::= { ospfVirtIfEntry 5 }
     
     
         ospfVirtIfRtrDeadInterval OBJECT-TYPE
             SYNTAX   PositiveInteger
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The number of seconds that  a  router's  Hello
                packets  have  not been seen before it's neigh-
                bors declare the router down.  This  should  be
                some  multiple  of  the  Hello  interval.  This
                value must be the same for the  virtual  neigh-
                bor."
            DEFVAL { 60 }
            ::= { ospfVirtIfEntry 6 }
     
     
     
     
     
     
     
     
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         ospfVirtIfState OBJECT-TYPE
             SYNTAX   INTEGER    {
                         down (1),            -- these use the same encoding
                         pointToPoint (4)     -- as the ospfIfTable
                       }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "OSPF virtual interface states."
            DEFVAL   { down }
            ::= { ospfVirtIfEntry 7 }
     
     
         ospfVirtIfEvents OBJECT-TYPE
             SYNTAX   Counter32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of state changes or error events on
                this Virtual Link"
            ::= { ospfVirtIfEntry 8 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtIfAuthKey OBJECT-TYPE
             SYNTAX   OCTET STRING (SIZE(0..256))
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "If Authentication Type is simplePassword,  the
                device  will left adjust and zero fill to 8 oc-
                tets.
     
                Note that unauthenticated  interfaces  need  no
                authentication key, and simple password authen-
                tication cannot use a key of more  than  8  oc-
                tets.  Larger keys are useful only with authen-
                tication mechanisms not specified in this docu-
                ment.
     
                When  read,  ospfVifAuthKey  always  returns  a
                string of length zero."
            REFERENCE
               "OSPF Version 2, Section 9  The  Interface  Data
               Structure"
           DEFVAL   { '0000000000000000'H }    -- 0.0.0.0.0.0.0.0
           ::= { ospfVirtIfEntry 9 }
     
     
         ospfVirtIfStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfVirtIfEntry 10 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Neighbor Table
     
     --      The OSPF Neighbor Table describes all neighbors in
     --      the locality of the subject router.
     
         ospfNbrTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfNbrEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A table of non-virtual neighbor information."
            REFERENCE
               "OSPF Version 2, Section 10  The  Neighbor  Data
               Structure"
           ::= { ospf 10 }
     
     
         ospfNbrEntry OBJECT-TYPE
             SYNTAX   OspfNbrEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The information regarding a single neighbor."
            REFERENCE
               "OSPF Version 2, Section 10  The  Neighbor  Data
               Structure"
           INDEX { ospfNbrIpAddr, ospfNbrAddressLessIndex }
           ::= { ospfNbrTable 1 }
     
     OspfNbrEntry ::=
         SEQUENCE {
             ospfNbrIpAddr
                 IpAddress,
             ospfNbrAddressLessIndex
                 InterfaceIndex,
             ospfNbrRtrId
                 RouterID,
             ospfNbrOptions
                 Integer32,
             ospfNbrPriority
                 DesignatedRouterPriority,
             ospfNbrState
                 INTEGER,
             ospfNbrEvents
                 Counter32,
     
     
     
     
     
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             ospfNbrLsRetransQLen
                 Gauge32,
             ospfNbmaNbrStatus
                 RowStatus,
             ospfNbmaNbrPermanence
                 INTEGER
                   }
     
         ospfNbrIpAddr OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP address this neighbor is using  in  its
                IP  Source  Address.  Note that, on addressless
                links, this will not be 0.0.0.0,  but  the  ad-
                dress of another of the neighbor's interfaces."
            ::= { ospfNbrEntry 1 }
     
     
         ospfNbrAddressLessIndex OBJECT-TYPE
             SYNTAX   InterfaceIndex
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "On an interface having an  IP  Address,  zero.
                On  addressless  interfaces,  the corresponding
                value of ifIndex in the Internet Standard  MIB.
                On  row  creation, this can be derived from the
                instance."
            ::= { ospfNbrEntry 2 }
     
     
         ospfNbrRtrId OBJECT-TYPE
             SYNTAX   RouterID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "A 32-bit integer (represented as a type  IpAd-
                dress)  uniquely  identifying  the  neighboring
                router in the Autonomous System."
            DEFVAL   { '00000000'H }    -- 0.0.0.0
            ::= { ospfNbrEntry 3 }
     
     
     
     
     
     
     
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         ospfNbrOptions OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "A Bit Mask corresponding to the neighbor's op-
                tions field.
     
                Bit 0, if set, indicates that the  system  will
                operate  on  Type of Service metrics other than
                TOS 0.  If zero, the neighbor will  ignore  all
                metrics except the TOS 0 metric.
     
                Bit 1, if set, indicates  that  the  associated
                area  accepts and operates on external informa-
                tion; if zero, it is a stub area.
     
                Bit 2, if set, indicates that the system is ca-
                pable  of routing IP Multicast datagrams; i.e.,
                that it implements the Multicast Extensions  to
                OSPF.
     
                Bit 3, if set, indicates  that  the  associated
                area  is  an  NSSA.  These areas are capable of
                carrying type 7 external advertisements,  which
                are  translated into type 5 external advertise-
                ments at NSSA borders."
            REFERENCE
               "OSPF Version 2, Section 12.1.2 Options"
           DEFVAL { 0 }
           ::= { ospfNbrEntry 4 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfNbrPriority OBJECT-TYPE
             SYNTAX   DesignatedRouterPriority
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The priority of this neighbor in the designat-
                ed router election algorithm.  The value 0 sig-
                nifies that the neighbor is not eligible to be-
                come  the  designated router on this particular
                network."
            DEFVAL { 1 }
            ::= { ospfNbrEntry 5 }
     
     
         ospfNbrState OBJECT-TYPE
             SYNTAX   INTEGER    {
                         down (1),
                         attempt (2),
                         init (3),
                         twoWay (4),
                         exchangeStart (5),
                         exchange (6),
                         loading (7),
                         full (8)
                       }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The State of the relationship with this Neigh-
                bor."
            REFERENCE
               "OSPF Version 2, Section 10.1 Neighbor States"
           DEFVAL   { down }
           ::= { ospfNbrEntry 6 }
     
     
         ospfNbrEvents OBJECT-TYPE
             SYNTAX   Counter32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of times this neighbor relationship
                has changed state, or an error has occurred."
            ::= { ospfNbrEntry 7 }
     
     
     
     
     
     
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         ospfNbrLsRetransQLen OBJECT-TYPE
             SYNTAX   Gauge32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The  current  length  of  the   retransmission
                queue."
            ::= { ospfNbrEntry 8 }
     
     
         ospfNbmaNbrStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfNbrEntry 9 }
     
     
         ospfNbmaNbrPermanence OBJECT-TYPE
             SYNTAX   INTEGER    {
                         dynamic (1),        -- learned through protocol
                         permanent (2)        -- configured address
                       }
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.   'dynamic'  and  'permanent' refer to how
                the neighbor became known."
            DEFVAL { permanent }
            ::= { ospfNbrEntry 10 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Virtual Neighbor Table
     
     --      This table describes all virtual neighbors.
     --      Since Virtual Links are configured in the
     --      virtual interface table, this table is read-only.
     
         ospfVirtNbrTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfVirtNbrEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A table of virtual neighbor information."
            REFERENCE
               "OSPF Version 2, Section 15  Virtual Links"
           ::= { ospf 11 }
     
     
         ospfVirtNbrEntry OBJECT-TYPE
             SYNTAX   OspfVirtNbrEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "Virtual neighbor information."
            INDEX { ospfVirtNbrArea, ospfVirtNbrRtrId }
            ::= { ospfVirtNbrTable 1 }
     
     OspfVirtNbrEntry ::=
         SEQUENCE {
             ospfVirtNbrArea
                 AreaID,
             ospfVirtNbrRtrId
                 RouterID,
             ospfVirtNbrIpAddr
                 IpAddress,
             ospfVirtNbrOptions
                 Integer32,
             ospfVirtNbrState
                 INTEGER,
             ospfVirtNbrEvents
                 Counter32,
             ospfVirtNbrLsRetransQLen
                 Gauge32
                   }
     
     
     
     
     
     
     
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         ospfVirtNbrArea OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The Transit Area Identifier."
            ::= { ospfVirtNbrEntry 1 }
     
     
         ospfVirtNbrRtrId OBJECT-TYPE
             SYNTAX   RouterID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "A  32-bit  integer  uniquely  identifying  the
                neighboring router in the Autonomous System."
            ::= { ospfVirtNbrEntry 2 }
     
     
         ospfVirtNbrIpAddr OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP address this Virtual  Neighbor  is  us-
                ing."
            ::= { ospfVirtNbrEntry 3 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtNbrOptions OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "A Bit Mask corresponding to the neighbor's op-
                tions field.
     
                Bit 1, if set, indicates that the  system  will
                operate  on  Type of Service metrics other than
                TOS 0.  If zero, the neighbor will  ignore  all
                metrics except the TOS 0 metric.
     
                Bit 2, if set, indicates  that  the  system  is
                Network  Multicast  capable; ie, that it imple-
                ments OSPF Multicast Routing."
            ::= { ospfVirtNbrEntry 4 }
     
     
         ospfVirtNbrState OBJECT-TYPE
             SYNTAX   INTEGER    {
                         down (1),
                         attempt (2),
                         init (3),
                         twoWay (4),
                         exchangeStart (5),
                         exchange (6),
                         loading (7),
                         full (8)
                       }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The state of the  Virtual  Neighbor  Relation-
                ship."
            ::= { ospfVirtNbrEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtNbrEvents OBJECT-TYPE
             SYNTAX   Counter32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The number of  times  this  virtual  link  has
                changed its state, or an error has occurred."
            ::= { ospfVirtNbrEntry 6 }
     
     
         ospfVirtNbrLsRetransQLen OBJECT-TYPE
             SYNTAX   Gauge32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The  current  length  of  the   retransmission
                queue."
            ::= { ospfVirtNbrEntry 7 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Link State Database, External
     
     --      The Link State Database contains the Link State
     --      Advertisements from throughout the areas that the
     --      device is attached to.
     
     --             This table is identical to the OSPF LSDB Table in
     --      format, but contains only External Link State
     --             Advertisements.  The purpose is to allow external
     --      LSAs to be displayed once for the router rather
     --      than once in each non-stub area.
     
         ospfExtLsdbTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfExtLsdbEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "The OSPF Process's Links State Database."
            REFERENCE
               "OSPF Version 2, Section 12  Link  State  Adver-
               tisements"
           ::= { ospf 12 }
     
     
         ospfExtLsdbEntry OBJECT-TYPE
             SYNTAX   OspfExtLsdbEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A single Link State Advertisement."
            INDEX { ospfExtLsdbType, ospfExtLsdbLsid, ospfExtLsdbRouterId }
            ::= { ospfExtLsdbTable 1 }
     
     OspfExtLsdbEntry ::=
         SEQUENCE {
             ospfExtLsdbType
                 INTEGER,
             ospfExtLsdbLsid
                 IpAddress,
             ospfExtLsdbRouterId
                 RouterID,
             ospfExtLsdbSequence
                 Integer32,
             ospfExtLsdbAge
                 Integer32,
     
     
     
     
     
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             ospfExtLsdbChecksum
                 Integer32,
             ospfExtLsdbAdvertisement
                 OCTET STRING
                   }
     
         ospfExtLsdbType OBJECT-TYPE
             SYNTAX   INTEGER    {
                         asExternalLink (5)
                       }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The type  of  the  link  state  advertisement.
                Each  link state type has a separate advertise-
                ment format."
            REFERENCE
               "OSPF Version 2, Appendix A.4.1 The  Link  State
               Advertisement header"
           ::= { ospfExtLsdbEntry 1 }
     
     
         ospfExtLsdbLsid OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The Link State ID is an LS Type Specific field
                containing either a Router ID or an IP Address;
                it identifies the piece of the  routing  domain
                that is being described by the advertisement."
            REFERENCE
               "OSPF Version 2, Section 12.1.4 Link State ID"
           ::= { ospfExtLsdbEntry 2 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfExtLsdbRouterId OBJECT-TYPE
             SYNTAX   RouterID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The 32 bit number that uniquely identifies the
                originating router in the Autonomous System."
            REFERENCE
               "OSPF Version 2, Appendix C.1 Global parameters"
           ::= { ospfExtLsdbEntry 3 }
     
     --  Note that the OSPF Sequence Number is a 32 bit signed
     --  integer.  It starts with the value '80000001'h,
     --  or -'7FFFFFFF'h, and increments until '7FFFFFFF'h
     --  Thus, a typical sequence number will be very negative.
     
         ospfExtLsdbSequence OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The sequence number field is a  signed  32-bit
                integer.   It  is used to detect old and dupli-
                cate link state advertisements.  The  space  of
                sequence  numbers  is  linearly  ordered.   The
                larger the sequence number the more recent  the
                advertisement."
            REFERENCE
               "OSPF Version  2,  Section  12.1.6  LS  sequence
               number"
           ::= { ospfExtLsdbEntry 4 }
     
     
         ospfExtLsdbAge OBJECT-TYPE
             SYNTAX   Integer32    -- Should be 0..MaxAge
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "This field is the age of the link state adver-
                tisement in seconds."
            REFERENCE
               "OSPF Version 2, Section 12.1.1 LS age"
           ::= { ospfExtLsdbEntry 5 }
     
     
     
     
     
     
     
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         ospfExtLsdbChecksum OBJECT-TYPE
             SYNTAX   Integer32
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "This field is the  checksum  of  the  complete
                contents  of  the  advertisement, excepting the
                age field.  The age field is excepted  so  that
                an   advertisement's  age  can  be  incremented
                without updating the  checksum.   The  checksum
                used  is  the same that is used for ISO connec-
                tionless datagrams; it is commonly referred  to
                as the Fletcher checksum."
            REFERENCE
               "OSPF Version 2, Section 12.1.7 LS checksum"
           ::= { ospfExtLsdbEntry 6 }
     
     
         ospfExtLsdbAdvertisement OBJECT-TYPE
             SYNTAX   OCTET STRING (SIZE(36))
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The entire Link State Advertisement, including
                its header."
            REFERENCE
               "OSPF Version 2, Section 12  Link  State  Adver-
               tisements"
           ::= { ospfExtLsdbEntry 7 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     --  OSPF Use of the CIDR Route Table
     
     ospfRouteGroup           OBJECT IDENTIFIER ::= { ospf 13 }
     
     -- The IP Forwarding Table defines a number of objects for use by
     -- the routing protocol to externalize its information.  Most of
     -- the variables (ipForwardDest, ipForwardMask, ipForwardPolicy,
     -- ipForwardNextHop, ipForwardIfIndex, ipForwardType,
     -- ipForwardProto, ipForwardAge, and ipForwardNextHopAS) are
     -- defined there.
     
     -- Those that leave some discretion are defined here.
     
     -- ipCidrRouteProto is, of course, ospf (13).
     
     -- ipCidrRouteAge is the time since the route was first calculated,
     -- as opposed to the time since the last SPF run.
     
     -- ipCidrRouteInfo is an OBJECT IDENTIFIER for use by the routing
     -- protocol.  The following values shall be found there depending
     -- on the way the route was calculated.
     
     ospfIntraArea      OBJECT IDENTIFIER ::= { ospfRouteGroup 1 }
     ospfInterArea      OBJECT IDENTIFIER ::= { ospfRouteGroup 2 }
     ospfExternalType1  OBJECT IDENTIFIER ::= { ospfRouteGroup 3 }
     ospfExternalType2  OBJECT IDENTIFIER ::= { ospfRouteGroup 4 }
     
     -- ipCidrRouteMetric1 is, by definition, the primary routing
     -- metric.  Therefore, it should be the metric that route
     -- selection is based on.  For intra-area and inter-area routes,
     -- it is an OSPF metric.  For External Type 1 (comparable value)
     -- routes, it is an OSPF metric plus the External Metric.  For
     -- external Type 2 (non-comparable value) routes, it is the
     -- external metric.
     
     -- ipCidrRouteMetric2 is, by definition, a secondary routing
     -- metric.  Therefore, it should be the metric that breaks a tie
     -- among routes having equal metric1 values and the same
     -- calculation rule.  For intra-area, inter-area routes, and
     -- External Type 1 (comparable value) routes, it is unused.  For
     -- external Type 2 (non-comparable value) routes, it is the metric
     -- to the AS border router.
     
     -- ipCidrRouteMetric3, ipCidrRouteMetric4, and ipCidrRouteMetric5 are
     -- unused.
     
     
     
     
     
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     --
     --      The OSPF Area Aggregate Table
     --
     --      This table replaces the OSPF Area Summary Table, being an
     --      extension of that for CIDR routers.
     
         ospfAreaAggregateTable OBJECT-TYPE
             SYNTAX   SEQUENCE OF OspfAreaAggregateEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A range of IP addresses  specified  by  an  IP
                address/IP  network  mask  pair.   For example,
                class B address range of X.X.X.X with a network
                mask  of  255.255.0.0 includes all IP addresses
                from X.X.0.0  to  X.X.255.255.   Note  that  if
                ranges  are configured such that one range sub-
                sumes  another  range  (e.g.,   10.0.0.0   mask
                255.0.0.0  and  10.1.0.0 mask 255.255.0.0), the
                most specific match is the preferred one."
            REFERENCE
               "OSPF Version 2, Appendix C.2  Area parameters"
           ::= { ospf 14 }
     
     
         ospfAreaAggregateEntry OBJECT-TYPE
             SYNTAX   OspfAreaAggregateEntry
             MAX-ACCESS   not-accessible
             STATUS   current
             DESCRIPTION
                "A range of IP addresses  specified  by  an  IP
                address/IP  network  mask  pair.   For example,
                class B address range of X.X.X.X with a network
                mask  of  255.255.0.0 includes all IP addresses
                from X.X.0.0  to  X.X.255.255.   Note  that  if
                ranges are range configured such that one range
                subsumes another  range  (e.g.,  10.0.0.0  mask
                255.0.0.0  and  10.1.0.0 mask 255.255.0.0), the
                most specific match is the preferred one."
            REFERENCE
               "OSPF Version 2, Appendix C.2  Area parameters"
           INDEX { ospfAreaAggregateAreaID, ospfAreaAggregateLsdbType,
                   ospfAreaAggregateNet, ospfAreaAggregateMask }
           ::= { ospfAreaAggregateTable 1 }
     
     
     
     
     
     
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     OspfAreaAggregateEntry ::=
         SEQUENCE {
             ospfAreaAggregateAreaID
                 AreaID,
             ospfAreaAggregateLsdbType
                 INTEGER,
             ospfAreaAggregateNet
                 IpAddress,
             ospfAreaAggregateMask
                 IpAddress,
             ospfAreaAggregateStatus
                 RowStatus,
             ospfAreaAggregateEffect
                 INTEGER
                   }
     
         ospfAreaAggregateAreaID OBJECT-TYPE
             SYNTAX   AreaID
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The Area the Address Aggregate is to be  found
                within."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfAreaAggregateEntry 1 }
     
     
         ospfAreaAggregateLsdbType OBJECT-TYPE
             SYNTAX   INTEGER    {
                         summaryLink (3),
                         nssaExternalLink (7)
                       }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The type of the Address Aggregate.  This field
                specifies  the  Lsdb type that this Address Ag-
                gregate applies to."
            REFERENCE
               "OSPF Version 2, Appendix A.4.1 The  Link  State
               Advertisement header"
           ::= { ospfAreaAggregateEntry 2 }
     
     
     
     
     
     
     
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         ospfAreaAggregateNet OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP Address of the Net or Subnet  indicated
                by the range."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfAreaAggregateEntry 3 }
     
     
         ospfAreaAggregateMask OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "The Subnet Mask that pertains to  the  Net  or
                Subnet."
            REFERENCE
               "OSPF Version 2, Appendix C.2 Area parameters"
           ::= { ospfAreaAggregateEntry 4 }
     
     
         ospfAreaAggregateStatus OBJECT-TYPE
             SYNTAX   RowStatus
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "This variable displays the status of  the  en-
                try.  Setting it to 'invalid' has the effect of
                rendering it inoperative.  The internal  effect
                (row removal) is implementation dependent."
            ::= { ospfAreaAggregateEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfAreaAggregateEffect OBJECT-TYPE
             SYNTAX   INTEGER    {
                         advertiseMatching (1),
                         doNotAdvertiseMatching (2)
                       }
             MAX-ACCESS   read-create
             STATUS   current
             DESCRIPTION
                "Subnets subsumed by ranges either trigger  the
                advertisement  of  the indicated aggregate (ad-
                vertiseMatching), or result in the subnet's not
                being advertised at all outside the area."
            DEFVAL   { advertiseMatching }
            ::= { ospfAreaAggregateEntry 6 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     -- conformance information
     
     ospfConformance OBJECT IDENTIFIER ::= { ospf 15 }
     
     ospfGroups      OBJECT IDENTIFIER ::= { ospfConformance 1 }
     ospfCompliances OBJECT IDENTIFIER ::= { ospfConformance 2 }
     
     -- compliance statements
     
         ospfCompliance MODULE-COMPLIANCE
             STATUS  current
             DESCRIPTION
                "The compliance statement "
            MODULE  -- this module
            MANDATORY-GROUPS {
                         ospfBasicGroup,
                         ospfAreaGroup,
                         ospfStubAreaGroup,
                         ospfIfGroup,
                         ospfIfMetricGroup,
                         ospfVirtIfGroup,
                         ospfNbrGroup,
                         ospfVirtNbrGroup,
                         ospfAreaAggregateGroup
                }
     
     
             GROUP       ospfBasicGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
             GROUP       ospfAreaGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
             GROUP       ospfStubAreaGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
     
     
     
     
     
     
     
     
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             GROUP       ospfLsdbGroup
             DESCRIPTION
                "This group is mandatory for all  OSPF  systems
                that display their link state database."
     
     
             GROUP       ospfHostGroup
             DESCRIPTION
                "This group is mandatory for all  OSPF  systems
                that advertise individual hosts as neighbors."
     
     
             GROUP       ospfIfGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
             GROUP       ospfIfMetricGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
             GROUP       ospfVirtIfGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
             GROUP       ospfNbrGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
             GROUP       ospfVirtNbrGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
     
     
             GROUP       ospfExtLsdbGroup
             DESCRIPTION
                "This group is mandatory for all  OSPF  systems
                that display their link state database"
     
     
     
     
     
     
     
     
     
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             GROUP       ospfAreaAggregateGroup
             DESCRIPTION
                "This group is mandatory for all OSPF systems"
            ::= { ospfCompliances 1 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     -- units of conformance
     
         ospfBasicGroup    OBJECT-GROUP
             OBJECTS {
                         ospfRouterId,
                         ospfAdminStat,
                         ospfVersionNumber,
                         ospfAreaBdrRtrStatus,
                         ospfASBdrRtrStatus,
                         ospfExternLsaCount,
                         ospfExternLsaCksumSum,
                         ospfTOSSupport,
                         ospfOriginateNewLsas,
                         ospfRxNewLsas,
                         ospfExtLsdbLimit,
                         ospfMulticastExtensions
             }
             STATUS  current
             DESCRIPTION
                "These objects are required for OSPF systems."
            ::= { ospfGroups 1 }
     
     
         ospfAreaGroup    OBJECT-GROUP
             OBJECTS {
                         ospfAreaId,
                         ospfAuthType,
                         ospfImportAsExtern,
                         ospfSpfRuns,
                         ospfAreaBdrRtrCount,
                         ospfAsBdrRtrCount,
                         ospfAreaLsaCount,
                         ospfAreaLsaCksumSum,
                         ospfAreaSummary,
                         ospfAreaStatus
             }
             STATUS  current
             DESCRIPTION
                "These objects are required  for  OSPF  systems
                supporting areas."
            ::= { ospfGroups 2 }
     
     
     
     
     
     
     
     
     
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         ospfStubAreaGroup    OBJECT-GROUP
             OBJECTS {
                         ospfStubAreaId,
                         ospfStubTOS,
                         ospfStubMetric,
                         ospfStubStatus,
                         ospfStubMetricType
             }
             STATUS  current
             DESCRIPTION
                "These objects are required  for  OSPF  systems
                supporting stub areas."
            ::= { ospfGroups 3 }
     
     
         ospfLsdbGroup    OBJECT-GROUP
             OBJECTS {
                         ospfLsdbAreaId,
                         ospfLsdbType,
                         ospfLsdbLsid,
                         ospfLsdbRouterId,
                         ospfLsdbSequence,
                         ospfLsdbAge,
                         ospfLsdbChecksum,
                         ospfLsdbAdvertisement
             }
             STATUS  current
             DESCRIPTION
                "These objects are required  for  OSPF  systems
                that display their link state database."
            ::= { ospfGroups 4 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfAreaRangeGroup    OBJECT-GROUP
             OBJECTS {
                         ospfAreaRangeAreaId,
                         ospfAreaRangeNet,
                         ospfAreaRangeMask,
                         ospfAreaRangeStatus,
                         ospfAreaRangeEffect
             }
             STATUS  obsolete
             DESCRIPTION
                "These objects are required for  non-CIDR  OSPF
                systems that support multiple areas."
            ::= { ospfGroups 5 }
     
     
         ospfHostGroup    OBJECT-GROUP
             OBJECTS {
                         ospfHostIpAddress,
                         ospfHostTOS,
                         ospfHostMetric,
                         ospfHostStatus,
                         ospfHostAreaID
             }
             STATUS  current
             DESCRIPTION
                "These objects are required  for  OSPF  systems
                that support attached hosts."
            ::= { ospfGroups 6 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfGroup    OBJECT-GROUP
             OBJECTS {
                         ospfIfIpAddress,
                         ospfAddressLessIf,
                         ospfIfAreaId,
                         ospfIfType,
                         ospfIfAdminStat,
                         ospfIfRtrPriority,
                         ospfIfTransitDelay,
                         ospfIfRetransInterval,
                         ospfIfHelloInterval,
                         ospfIfRtrDeadInterval,
                         ospfIfPollInterval,
                         ospfIfState,
                         ospfIfDesignatedRouter,
                         ospfIfBackupDesignatedRouter,
                         ospfIfEvents,
                         ospfIfAuthKey,
                         ospfIfStatus,
                         ospfIfMulticastForwarding
             }
             STATUS  current
             DESCRIPTION
                "These objects are required for OSPF systems."
            ::= { ospfGroups 7 }
     
     
         ospfIfMetricGroup    OBJECT-GROUP
             OBJECTS {
                         ospfIfMetricIpAddress,
                         ospfIfMetricAddressLessIf,
                         ospfIfMetricTOS,
                         ospfIfMetricValue,
                         ospfIfMetricStatus
             }
             STATUS  current
             DESCRIPTION
                "These objects are required for OSPF systems."
            ::= { ospfGroups 8 }
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtIfGroup    OBJECT-GROUP
             OBJECTS {
                         ospfVirtIfAreaId,
                         ospfVirtIfNeighbor,
                         ospfVirtIfTransitDelay,
                         ospfVirtIfRetransInterval,
                         ospfVirtIfHelloInterval,
                         ospfVirtIfRtrDeadInterval,
                         ospfVirtIfState,
                         ospfVirtIfEvents,
                         ospfVirtIfAuthKey,
                         ospfVirtIfStatus
             }
             STATUS  current
             DESCRIPTION
                "These objects are required for OSPF systems."
            ::= { ospfGroups 9 }
     
     
         ospfNbrGroup    OBJECT-GROUP
             OBJECTS {
                         ospfNbrIpAddr,
                         ospfNbrAddressLessIndex,
                         ospfNbrRtrId,
                         ospfNbrOptions,
                         ospfNbrPriority,
                         ospfNbrState,
                         ospfNbrEvents,
                         ospfNbrLsRetransQLen,
                         ospfNbmaNbrStatus,
                         ospfNbmaNbrPermanence
             }
             STATUS  current
             DESCRIPTION
                "These objects are required for OSPF systems."
            ::= { ospfGroups 10 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtNbrGroup    OBJECT-GROUP
             OBJECTS {
                         ospfVirtNbrArea,
                         ospfVirtNbrRtrId,
                         ospfVirtNbrIpAddr,
                         ospfVirtNbrOptions,
                         ospfVirtNbrState,
                         ospfVirtNbrEvents,
                         ospfVirtNbrLsRetransQLen
             }
             STATUS  current
             DESCRIPTION
                "These objects are required for OSPF systems."
            ::= { ospfGroups 11 }
     
     
         ospfExtLsdbGroup    OBJECT-GROUP
             OBJECTS {
                         ospfExtLsdbType,
                         ospfExtLsdbLsid,
                         ospfExtLsdbRouterId,
                         ospfExtLsdbSequence,
                         ospfExtLsdbAge,
                         ospfExtLsdbChecksum,
                         ospfExtLsdbAdvertisement
             }
             STATUS  current
             DESCRIPTION
                "These objects are required  for  OSPF  systems
                that display their link state database."
            ::= { ospfGroups 12 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfAreaAggregateGroup    OBJECT-GROUP
             OBJECTS {
                         ospfAreaAggregateAreaID,
                         ospfAreaAggregateLsdbType,
                         ospfAreaAggregateNet,
                         ospfAreaAggregateMask,
                         ospfAreaAggregateStatus,
                         ospfAreaAggregateEffect
             }
             STATUS  current
             DESCRIPTION
                "These objects are required for OSPF systems."
            ::= { ospfGroups 13 }
     
     END
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     6.  OSPF Traps
     
     OSPF is an event driven routing protocol, where an event can
     be a change in an OSPF interface's link-level status, the
     expiration of an OSPF timer or the reception of an OSPF
     protocol packet.  Many of the actions that OSPF takes as a
     result of these events will result in a change of the routing
     topology.  As routing topologies become large and complex it
     is often difficult to locate the source of a topology change
     or unpredicted routing path by polling a large number or
     routers.  Another approach is to notify a network manager of
     potentially critical OSPF events with SNMP traps.
     
     This section defines a set of traps, objects and mechanisms to
     enhance the ability to manage IP internetworks which use OSPF
     as its IGP.  It is an optional but useful extension to the
     OSPF MIB.
     
     6.1.  Format Of Trap Definitions
     
     Section A.4.0 contains contains the trap definitions using
     
     6.2.  Approach
     
     The mechanism for sending traps is straight-forward.  When an
     exception event occurs, the application notifies the local
     agent who sends a trap to the appropriate SNMP management
     stations.  The message includes the trap type and may include
     a list of trap specific variables.  A new object is defined in
     section 5.2 that will allow a network manager to enable or
     disable particular OSPF traps.  Section A.4.0 gives the trap
     definitions which includes the variable lists.  The router ID
     of the originator of the trap is included in the variable list
     so that the network manager may easily determine the source of
     the trap.
     
     To limit the frequency of OSPF traps, the following additional
     mechanisms are suggested.
     
     6.3.  Ignoring Initial Activity
     
     The majority of critical events occur when OSPF is enabled on
     a router, at which time the designated router is elected and
     neighbor adjacencies are formed.  During this initial period a
     potential flood of traps is unnecessary since the events are
     
     
     
     
     
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     expected.  To avoid unnecessary traps, a router should not
     originate expected OSPF interface related traps until two of
     that interface's dead timer intervals have elapsed.  The
     expected OSPF interface traps are ospfIfStateChange,
     ospfVirtIfStateChange, ospfNbrStateChange,
     ospfVirtNbrStateChange, ospfTxRetranmit and
     ospfVirtIfTxRetransmit.  Additionally, ospfMaxAgeLsa and
     ospfOriginateLsa traps should not be originated until two dead
     timer intervals have elapsed where the dead timer interval
     used should be the dead timer with the smallest value.
     
     6.4.  Throttling Traps
     
     The mechanism for throttling the traps is similar to the
     mechanism explained in RFC 1224 [11] section 5.  The basic
     idea is that there is a sliding window in seconds and an upper
     bound on the number of traps that may be generated within this
     window.  Unlike RFC 1224, traps are not sent to inform the
     network manager that the throttling mechanism has kicked in.
     
     A single window should be used to throttle all OSPF traps
     types except for the ospfLsdbOverflow and the
     ospfLsdbApproachingOverflow trap which should not be
     throttled.  For example, if the window time is 3, the upper
     bound is 3 and the events that would cause trap types 1,3,5
     and 7 occur within a 3 second period, the type 7 trap should
     not be generated.
     
     Appropriate values are 7 traps with a window time of 10
     seconds.
     
     6.5.  One Trap Per OSPF Event
     
     Several of the traps defined in section A.4.0 are generated as
     the result of finding an unusual condition while parsing an
     OSPF packet or a processing a timer event.  There may be more
     than one unusual condition detected while handling the event.
     For example, a link-state update packet may contain several
     retransmitted link-state advertisements (LSAs), or a
     retransmitted database description packet may contain several
     database description entries.  To limit the number of traps
     and variables, OSPF should generate at most one trap per OSPF
     event.  Only the variables associated with the first unusual
     condition should be included with the trap.  Similarly, if
     more than one type of unusual condition is encountered while
     
     
     
     
     
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     parsing the packet, only the first event will generate a trap.
     
     6.6.  Polling Event Counters
     
     Many of the tables in the OSPF MIB contain generalized event
     counters.  By enabling the traps defined in this document a
     network manager can obtain more specific information about
     these events.  A network manager may want to poll these event
     counters and enable specific OSPF traps when a particular
     counter starts increasing abnormally.
     
     The following table shows the relationship between the event
     counters defined in the OSPF MIB and the trap types defined in
     section A.4.0
     
     
     
                Counter32                   Trap Type
         -----------------------   ------------------------
         ospfOriginateNewLsas       ospfOriginateLsa
         ospfIfEvents               ospfIfStateChange
                                    ospfConfigError
                                    ospfIfAuthFailure
                                    ospfRxBadPacket
                                    ospfTxRetransmit
         ospfVirtIfEvents           ospfVirtIfStateChange
                                    ospfVirtIfConfigError
                                    ospfVirtIfAuthFailure
                                    ospfVirtIfRxBadPacket
                                    ospfVirtIfTxRetransmit
         ospfNbrEvents              ospfNbrStateChange
         ospfVirtNbrEvents          ospfVirtNbrStateChange
         ospfExternLSACount         ospfLsdbApproachingOverflow
         ospfExternLSACount         ospfLsdbOverflow
     
     
     
     
     7.  OSPF Trap Definitions
     
     
     
     
     
     
     
     
     
     
     
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     OSPF-TRAP-MIB DEFINITIONS ::= BEGIN
     
         IMPORTS
                 MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, IpAddress
                     FROM SNMPv2-SMI
                 MODULE-COMPLIANCE, OBJECT-GROUP
                     FROM SNMPv2-CONF
                 ospfRouterId, ospfIfIpAddress, ospfAddressLessIf, ospfIfState,
                 ospfVirtIfAreaId, ospfVirtIfNeighbor, ospfVirtIfState,
                 ospfNbrIpAddr, ospfNbrAddressLessIndex, ospfNbrRtrId,
                 ospfNbrState, ospfVirtNbrArea, ospfVirtNbrRtrId, ospfVirtNbrState,
                 ospfLsdbType, ospfLsdbLsid, ospfLsdbRouterId, ospfLsdbAreaId,
                 ospfExtLsdbLimit, ospf
                     FROM OSPF-MIB;
     
         ospfTrap MODULE-IDENTITY
            LAST-UPDATED "9407141743Z"      -- Thu Jul 14 17:43:27 PDT 1994
            ORGANIZATION "IETF OSPF Working Group"
            CONTACT-INFO
                "                      Fred Baker
                Postal:                Advanced Computer Communications
                                       315 Bollay Drive
                                       Santa Barbara, California 93117
                Tel:                   +1 085 685 4455
                E-Mail:                fbaker@acc.com
     
                                       Rob Coltun
                Postal:                RainbowBridge Communications
                Tel:                   (301) 340-9416
                E-Mail:                rcoltun@rainbow-bridge.com"
            DESCRIPTION
               "The MIB module to describe traps for the OSPF Version 2
               Protocol"
           ::= { ospf 16 }
     
     -- Trap Support Objects
     
     --         The following are support objects for the OSPF traps.
     
     ospfTrapControl OBJECT IDENTIFIER ::= { ospfTrap 1 }
     ospfTraps OBJECT IDENTIFIER ::= { ospfTrap 2 }
     
     
     
     
     
     
     
     
     
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         ospfSetTrap OBJECT-TYPE
             SYNTAX   OCTET STRING (SIZE(4))
             MAX-ACCESS   read-write
             STATUS   current
             DESCRIPTION
                "A four-octet string serving as a bit  map  for
                the trap events defined by the OSPF traps. This
                object is used to enable and  disable  specific
                OSPF   traps   where  a  1  in  the  bit  field
                represents enabled.  The right-most bit  (least
                significant) represents trap 0."
            ::= { ospfTrapControl 1 }
     
     
         ospfConfigErrorType OBJECT-TYPE
             SYNTAX   INTEGER   {
                         badVersion (1),
                         areaMismatch (2),
                         unknownNbmaNbr (3), -- Router is Dr eligible
                         unknownVirtualNbr (4),
                         authTypeMismatch(5),
                         authFailure (6),
                         netMaskMismatch (7),
                         helloIntervalMismatch (8),
                         deadIntervalMismatch (9),
                         optionMismatch (10) }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "Potential types  of  configuration  conflicts.
                Used  by the ospfConfigError and ospfConfigVir-
                tError traps."
        ::= { ospfTrapControl 2 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfPacketType OBJECT-TYPE
             SYNTAX   INTEGER   {
                         hello (1),
                         dbDescript (2),
                         lsReq (3),
                         lsUpdate (4),
                         lsAck (5) }
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "OSPF packet types."
        ::= { ospfTrapControl 3 }
     
     
         ospfPacketSrc OBJECT-TYPE
             SYNTAX   IpAddress
             MAX-ACCESS   read-only
             STATUS   current
             DESCRIPTION
                "The IP address of an inbound packet that  can-
                not be identified by a neighbor instance."
            ::= { ospfTrapControl 4 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     -- Traps
     
     
     
     
     
         ospfIfStateChange NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfIfIpAddress,
                         ospfAddressLessIf,
                         ospfIfState   -- The new state
                       }
             STATUS             current
             DESCRIPTION
                "An ospfIfStateChange trap signifies that there
                has been a change in the state of a non-virtual
                OSPF interface. This trap should  be  generated
                when  the interface state regresses (e.g., goes
                from Dr to Down) or progresses  to  a  terminal
                state  (i.e.,  Point-to-Point, DR Other, Dr, or
                Backup)."
        ::= { ospfTraps 16 }
     
     
         ospfVirtIfStateChange NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfVirtIfAreaId,
                         ospfVirtIfNeighbor,
                         ospfVirtIfState  -- The new state
                       }
             STATUS             current
             DESCRIPTION
                "An ospfIfStateChange trap signifies that there
                has  been a change in the state of an OSPF vir-
                tual interface.
     
                This trap should be generated when  the  inter-
                face  state  regresses  (e.g., goes from Point-
                to-Point to Down) or progresses to  a  terminal
                state (i.e., Point-to-Point)."
        ::= { ospfTraps 1 }
     
     
     
     
     
     
     
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         ospfNbrStateChange NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfNbrIpAddr,
                         ospfNbrAddressLessIndex,
                         ospfNbrRtrId,
                         ospfNbrState  -- The new state
                       }
             STATUS             current
             DESCRIPTION
                "An  ospfNbrStateChange  trap  signifies   that
                there  has been a change in the state of a non-
                virtual OSPF neighbor.   This  trap  should  be
                generated  when  the  neighbor  state regresses
                (e.g., goes from Attempt or Full  to  1-Way  or
                Down)  or progresses to a terminal state (e.g.,
                2-Way or Full).  When an  neighbor  transitions
                from  or  to Full on non-broadcast multi-access
                and broadcast networks, the trap should be gen-
                erated  by the designated router.  A designated
                router transitioning to Down will be  noted  by
                ospfIfStateChange."
        ::= { ospfTraps 2 }
     
     
         ospfVirtNbrStateChange NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfVirtNbrArea,
                         ospfVirtNbrRtrId,
                         ospfVirtNbrState  -- The new state
                       }
             STATUS             current
             DESCRIPTION
                "An ospfIfStateChange trap signifies that there
                has  been a change in the state of an OSPF vir-
                tual neighbor.  This trap should  be  generated
                when  the  neighbor state regresses (e.g., goes
                from Attempt or  Full  to  1-Way  or  Down)  or
                progresses to a terminal state (e.g., Full)."
        ::= { ospfTraps 3 }
     
     
     
     
     
     
     
     
     
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         ospfIfConfigError NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfIfIpAddress,
                         ospfAddressLessIf,
                         ospfPacketSrc,  -- The source IP address
                         ospfConfigErrorType, -- Type of error
                         ospfPacketType
                       }
             STATUS             current
             DESCRIPTION
                "An ospfIfConfigError  trap  signifies  that  a
                packet  has  been received on a non-virtual in-
                terface  from  a  router  whose   configuration
                parameters  conflict  with this router's confi-
                guration parameters.  Note that the  event  op-
                tionMismatch  should  cause  a  trap only if it
                prevents an adjacency from forming."
                       ::= { ospfTraps 4 }
     
     
         ospfVirtIfConfigError NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfVirtIfAreaId,
                         ospfVirtIfNeighbor,
                         ospfConfigErrorType, -- Type of error
                         ospfPacketType
                       }
             STATUS             current
             DESCRIPTION
                "An ospfConfigError trap signifies that a pack-
                et  has  been  received  on a virtual interface
                from a router  whose  configuration  parameters
                conflict   with   this  router's  configuration
                parameters.  Note that the event optionMismatch
                should  cause a trap only if it prevents an ad-
                jacency from forming."
        ::= { ospfTraps 5 }
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfAuthFailure NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfIfIpAddress,
                         ospfAddressLessIf,
                         ospfPacketSrc,  -- The source IP address
                         ospfConfigErrorType, -- authTypeMismatch or authFailure
                         ospfPacketType
                       }
             STATUS             current
             DESCRIPTION
                "An ospfIfAuthFailure  trap  signifies  that  a
                packet  has  been received on a non-virtual in-
                terface from a router whose authentication  key
                or  authentication  type  conflicts  with  this
                router's authentication key  or  authentication
                type."
        ::= { ospfTraps 6 }
     
     
         ospfVirtIfAuthFailure NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfVirtIfAreaId,
                         ospfVirtIfNeighbor,
                         ospfConfigErrorType, -- authTypeMismatch or authFailure
                         ospfPacketType
                       }
             STATUS             current
             DESCRIPTION
                "An ospfVirtIfAuthFailure trap signifies that a
                packet has been received on a virtual interface
                from a router whose authentication key  or  au-
                thentication  type conflicts with this router's
                authentication key or authentication type."
        ::= { ospfTraps 7 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfRxBadPacket NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfIfIpAddress,
                         ospfAddressLessIf,
                         ospfPacketSrc,  -- The source IP address
                         ospfPacketType
                       }
             STATUS             current
             DESCRIPTION
                "An ospfIfRxBadPacket trap  signifies  that  an
                OSPF  packet has been received on a non-virtual
                interface that cannot be parsed."
        ::= { ospfTraps 8 }
     
     
         ospfVirtIfRxBadPacket NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfVirtIfAreaId,
                         ospfVirtIfNeighbor,
                         ospfPacketType
                       }
             STATUS             current
             DESCRIPTION
                "An ospfRxBadPacket trap signifies that an OSPF
                packet has been received on a virtual interface
                that cannot be parsed."
        ::= { ospfTraps 9 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfTxRetransmit NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfIfIpAddress,
                         ospfAddressLessIf,
                         ospfNbrRtrId, -- Destination
                         ospfPacketType,
                         ospfLsdbType,
                         ospfLsdbLsid,
                         ospfLsdbRouterId
                       }
             STATUS             current
             DESCRIPTION
                "An ospfTxRetransmit  trap  signifies  than  an
                OSPF  packet  has  been retransmitted on a non-
                virtual interface.  All packets that may be re-
                transmitted  are associated with an LSDB entry.
                The LS type, LS ID, and Router ID are  used  to
                identify the LSDB entry."
        ::= { ospfTraps 10 }
     
     
         ospfVirtIfTxRetransmit NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfVirtIfAreaId,
                         ospfVirtIfNeighbor,
                         ospfPacketType,
                         ospfLsdbType,
                         ospfLsdbLsid,
                         ospfLsdbRouterId
                       }
             STATUS             current
             DESCRIPTION
                "An ospfTxRetransmit  trap  signifies  than  an
                OSPF packet has been retransmitted on a virtual
                interface.  All packets that may be retransmit-
                ted  are  associated with an LSDB entry. The LS
                type, LS ID, and Router ID are used to identify
                the LSDB entry."
        ::= { ospfTraps 11 }
     
     
     
     
     
     
     
     
     
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         ospfOriginateLsa NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfLsdbAreaId,  -- 0.0.0.0 for AS Externals
                         ospfLsdbType,
                         ospfLsdbLsid,
                         ospfLsdbRouterId
                       }
             STATUS             current
             DESCRIPTION
                "An ospfOriginateLsa trap signifies that a  new
                LSA  has  been originated by this router.  This
                trap should not be invoked for simple refreshes
                of  LSAs  (which happesn every 30 minutes), but
                instead will only be invoked  when  an  LSA  is
                (re)originated due to a topology change.  Addi-
                tionally, this trap does not include LSAs  that
                are  being  flushed  because  they have reached
                MaxAge."
        ::= { ospfTraps 12 }
     
     
         ospfMaxAgeLsa NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfLsdbAreaId,  -- 0.0.0.0 for AS Externals
                         ospfLsdbType,
                         ospfLsdbLsid,
                         ospfLsdbRouterId
                       }
             STATUS             current
             DESCRIPTION
                "An ospfMaxAgeLsa trap signifies  that  one  of
                the LSA in the router's link-state database has
                aged to MaxAge."
        ::= { ospfTraps 13 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfLsdbOverflow NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfExtLsdbLimit
                       }
             STATUS             current
             DESCRIPTION
                "An ospfLsdbOverflow trap  signifies  that  the
                number of LSAs in the router's link-state data-
                base has exceeded ospfExtLsdbLimit."
        ::= { ospfTraps 14 }
     
     
         ospfLsdbApproachingOverflow NOTIFICATION-TYPE
             OBJECTS {
                         ospfRouterId, -- The originator of the trap
                         ospfExtLsdbLimit
                       }
             STATUS             current
             DESCRIPTION
                "An ospfLsdbApproachingOverflow trap  signifies
                that  the  number of LSAs in the router's link-
                state database has exceeded ninety  percent  of
                ospfExtLsdbLimit."
        ::= { ospfTraps 15 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     -- conformance information
     
     ospfTrapConformance OBJECT IDENTIFIER ::= { ospfTrap 3 }
     
     ospfTrapGroups      OBJECT IDENTIFIER ::= { ospfTrapConformance 1 }
     ospfTrapCompliances OBJECT IDENTIFIER ::= { ospfTrapConformance 2 }
     
     -- compliance statements
     
         ospfTrapCompliance MODULE-COMPLIANCE
             STATUS  current
             DESCRIPTION
                "The compliance statement "
            MODULE  -- this module
            MANDATORY-GROUPS { ospfTrapControlGroup }
     
     
             GROUP       ospfTrapControlGroup
             DESCRIPTION
                "This group is optional but recommended for all
                OSPF systems"
            ::= { ospfTrapCompliances 1 }
     
     
     -- units of conformance
     
         ospfTrapControlGroup    OBJECT-GROUP
             OBJECTS {
                                ospfSetTrap,
                                ospfConfigErrorType,
                                ospfPacketType,
                                ospfPacketSrc
             }
             STATUS  current
             DESCRIPTION
                "These objects are required  to  control  traps
                from OSPF systems."
            ::= { ospfTrapGroups 1 }
     
     
     END
     
     
     
     
     
     
     
     
     
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     8.  Acknowledgements
     
     This document was produced by the OSPF Working Group.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     9.  References
     
     [1]  V. Cerf, IAB Recommendations for the Development of
          Internet Network Management Standards.  Internet Working
          Group Request for Comments 1052.  Network Information
          Center, SRI International, Menlo Park, California,
          (April, 1988).
     
     [2]  V. Cerf, Report of the Second Ad Hoc Network Management
          Review Group, Internet Working Group Request for Comments
          1109.  Network Information Center, SRI International,
          Menlo Park, California, (August, 1989).
     
     [3]  M.T. Rose and K. McCloghrie, Structure and Identification
          of Management Information for TCP/IP-based internets,
          Internet Working Group Request for Comments 1155.
          Network Information Center, SRI International, Menlo
          Park, California, (May, 1990).
     
     [4]  K. McCloghrie and M.T. Rose, Management Information Base
          for Network Management of TCP/IP-based internets,
          Internet Working Group Request for Comments 1156.
          Network Information Center, SRI International, Menlo
          Park, California, (May, 1990).
     
     [5]  J.D. Case, M.S. Fedor, M.L. Schoffstall, and J.R. Davin,
          Simple Network Management Protocol, Internet Working
          Group Request for Comments 1157.  Network Information
          Center, SRI International, Menlo Park, California, (May,
          1990).
     
     [6]  M.T. Rose (editor), Management Information Base for
          Network Management of TCP/IP-based internets, Internet
          Working Group Request for Comments 1213.  Network
          Information Center, SRI International, Menlo Park,
          California, (May, 1990).
     
     [7]  Information processing systems - Open Systems
          Interconnection - Specification of Abstract Syntax
          Notation One (ASN.1), International Organization for
          Standardization.  International Standard 8824, (December,
          1987).
     
     [8]  Information processing systems - Open Systems
          Interconnection - Specification of Basic Encoding Rules
     
     
     
     
     
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          for Abstract Notation One (ASN.1), International
          Organization for Standardization.  International Standard
          8825, (December, 1987).
     
     [9]  M.T. Rose, K. McCloghrie (editors), Towards Concise MIB
          Definitions, Internet Draft, Internet Engineering Task
          Force, (September, 1990).
     
     [10] M.T. Rose (editor), A Convention for Defining Traps for
          use with the SNMP, Internet Working Group Request for
          Comments 1215.  Network Information Center, SRI
          International, Menlo Park, California, (March, 1991).
     
     [11] L. Steinberg, Techniques for Managing Asynchronously
          Generated Alerts.  Internet Working Group Request for
          Comments 1224.  Network Information Center, SRI
          International, Menlo Park, California, (May, 1991).
     
     [12] J. Moy, Multicast Extensions to OSPF, Internet Draft,
          Proteon, Inc., (September, 1993).
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Table of Contents
     
     
     1 Status of this Memo ...................................    1
     2 Abstract ..............................................    2
     3 The SNMPv2 Network Management Framework ...............    3
     3.1 Object Definitions ..................................    3
     4 Overview ..............................................    3
     4.1 Changes from RFC 1253 ...............................    3
     4.2 Textual Conventions .................................    7
     4.3 Structure of MIB ....................................    7
     4.3.1 General Variables .................................    7
     4.3.2 Area Data Structure and Area Stub Metric Table ....    8
     4.3.3 Link State Database and External Link State  Da-
          tabase .............................................    8
     4.3.4 Address Table and Host Tables .....................    8
     4.3.5 Interface and Interface Metric Tables .............    8
     4.3.6 Virtual Interface Table ...........................    8
     4.3.7 Neighbor and Virtual Neighbor Tables ..............    8
     4.4 Conceptual Row Creation .............................    8
     4.5 Default Configuration ...............................    9
     5 Definitions ...........................................   12
     5.1 OSPF General Variables ..............................   15
     5.2 OSPF Area Table .....................................   20
     5.3 OSPF Area Default Metrics ...........................   25
     5.4 OSPF Link State Database ............................   28
     5.5 OSPF Address Range Table ............................   33
     5.6 OSPF Host Table .....................................   36
     5.7 OSPF Interface Table ................................   39
     5.8 OSPF Interface Metrics ..............................   48
     5.9 OSPF Virtual Interface Table ........................   52
     5.10 OSPF Neighbor Table ................................   57
     5.11 OSPF Virtual Neighbor Table ........................   62
     5.12 OSPF External Link State Database ..................   66
     5.13 OSPF Route Table Use ...............................   71
     5.14 OSPF Area Aggregate Table ..........................   72
     6 OSPF Traps ............................................   86
     6.1 Format Of Trap Definitions ..........................   86
     6.2 Approach ............................................   86
     6.3 Ignoring Initial Activity ...........................   86
     6.4 Throttling Traps ....................................   87
     6.5 One Trap Per OSPF Event .............................   87
     6.6 Polling Event Counters ..............................   88
     7 OSPF Trap Definitions .................................   88
     7.1 Trap Support Objects ................................   88
     
     
     
     
     
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     7.2 Traps ...............................................   91
     8 Acknowledgements ......................................  101
     9 References ............................................  102
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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