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Versions: 00 04 05 rfc1850                                              
     Internet Draft             OSPF MIB              November 1992
     
     
               OSPF Version 2 Management Information Base
     
                      Tue Nov  3 11:27:41 PST 1992
     
     
                               Fred Baker
     
                    Advanced Computer Communications
                            315 Bollay Drive
                    Santa Barbara, California 93117
     
                             fbaker@acc.com
     
     
                               Rob Coltun
     
                               Consultant
                             (301) 340-9416
     
                           rcoltun@ni.umd.edu
     
     
     
     
     
     
     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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     Internet Draft             OSPF MIB              November 1992
     
     
     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              November 1992
     
     
     3.  The Network Management Framework
     
     The Internet-standard Network Management Framework consists of
     three components.  They are:
     
     RFC 1155 which defines the SMI, the mechanisms used for
     describing and naming objects for the purpose of management.
     RFC 1212 defines a more concise description mechanism, which
     is wholly consistent with the SMI.
     
     RFC 1156 which defines MIB-I, the core set of managed objects
     for the Internet suite of protocols.  RFC 1213 defines MIB-II,
     an evolution of MIB-I based on implementation experience and
     new operational requirements.
     
     RFC 1157 which defines the SNMP, the protocol used for network
     access to managed objects.
     
     The Framework permits new objects to be defined for the
     purpose of experimentation and evaluation.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Internet Draft             OSPF MIB              November 1992
     
     
     4.  Objects
     
     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) [7] defined in the SMI.  In particular, each
     object has a name, a syntax, and an encoding.  The name is an
     object identifier, an administratively assigned name, which
     specifies an object type.  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 OBJECT DESCRIPTOR, to also
     refer to the object type.
     
     The syntax of an object type defines the abstract data
     structure corresponding to that object type.  The ASN.1
     language is used for this purpose.  However, the SMI [3]
     purposely restricts the ASN.1 constructs which may be used.
     These restrictions are explicitly made for simplicity.
     
     The encoding of an object type is simply how that object type
     is represented using the object type's syntax.  Implicitly
     tied to the notion of an object type's syntax and encoding is
     how the object type is represented when being transmitted on
     the network.
     
     The SMI specifies the use of the basic encoding rules of ASN.1
     [8], subject to the additional requirements imposed by the
     SNMP.
     
     4.1.  Format of Definitions
     
     Section 6 contains contains the specification of all object
     types contained in this MIB module.  The object types are
     defined using the conventions defined in the SMI, as amended
     by the extensions specified in RFC1212 [13].
     
     4.2.  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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     Internet Draft             OSPF MIB              November 1992
     
     
     (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 (Multicast 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 range of the variable ospfNBMANbrStatus was extended
          from 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
          interfaces."
     
     
     
     
     
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     Internet Draft             OSPF MIB              November 1992
     
     
          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 range of the variable ospfAreaRangeStatus was
          extended to include the concepts advertiseMatching,
          invalid (delete), and doNotAdvertiseMatching.  This
          permits the network manager to hide a subnet within an
          area.
     
     (15) 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-5 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.
     
     (16) ospfMulticastForwarding is added to the OSPF General
          Group.  This indicates the router's ability to forward IP
          multicast (class D) datagrams.
     
     (17) ospfIfMulticastForwarding in the Interface Group.  It
          indicates whether, and if so, how, multicasts should be
          forwarded on the interface.
     
     
     
     
     
     
     
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     Internet Draft             OSPF MIB              November 1992
     
     
     5.  Overview
     
     5.1.  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, TruthValue, Status, Validation, PositiveInteger,
     HelloRange, UpToMaxAge, InterfaceIndex, and
     DesignatedRouterPriority.
     
     5.2.  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
     
     5.2.1.  General Variables
     
     The General Variables are about what they sound like;
     variables which are global to the OSPF Process.
     
     
     
     
     
     
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     5.2.2.  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).
     
     5.2.3.  Link State Database and External Link State Database
     
     The Link State Database is provided primarily to provide
     detailed information for network debugging.
     
     5.2.4.  Address Table and Host Tables
     
     The Address Range Table and Host Table are provided to view
     configured Network Summary and Host Route information.
     
     5.2.5.  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.
     
     5.2.6.  Virtual Interface Table
     
     Likewise, the Virtual Interface Table describe virtual links
     to the OSPF Process.
     
     5.2.7.  Neighbor and Virtual Neighbor Tables
     
     The Neighbor Table and the Virtual Neighbor Table describe the
     neighbors to the OSPF Process.
     
     5.3.  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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     Internet Draft             OSPF MIB              November 1992
     
     
     objects which are read-only, implying that they are zeroed
     upon row creation.  These objects are of the SYNTAX Counter or
     Gauge.
     
     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.
     
     5.4.  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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     Internet Draft             OSPF MIB              November 1992
     
     
     -    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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     Internet Draft             OSPF MIB              November 1992
     
     
     -    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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     Internet Draft             OSPF MIB              November 1992
     
     
     6.  Definitions
     
     RFC1253-MIB DEFINITIONS ::= BEGIN
     
         IMPORTS
                 Counter, Gauge, IpAddress
                     FROM RFC1155-SMI
                 mib-2
                     FROM RFC1213-MIB
                 OBJECT-TYPE
                     FROM RFC-1212;
     
     --  This MIB module uses the extended OBJECT-TYPE macro as
     --  defined in [9].
     
     ospf OBJECT IDENTIFIER ::= { 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 ::= IpAddress
     
     --  The Router ID, in OSPF, has the same format as an IP Address,
     --  but identifies the router independent of its IP Address.
     
     RouterID ::= IpAddress
     
     --  The OSPF Metric is defined as an unsigned value in the range
     
     Metric    ::= INTEGER (1..'FFFF'h)
     BigMetric ::= INTEGER (1..'FFFFFF'h)
     
     --  Boolean Values
     
     TruthValue ::= INTEGER { true (1), false (2) }
     
     --  Status Values
     
     Status ::= INTEGER { enabled (1), disabled (2) }
     
     --  Row Creation/Deletion Values
     
     Validation ::= INTEGER { valid (1), invalid (2) }
     
     
     
     
     
     
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     --  Time Durations measured in seconds
     
     PositiveInteger ::= INTEGER (1..'7FFFFFFF'h)
     HelloRange      ::= INTEGER (1..'FFFF'h)
     UpToMaxAge      ::= INTEGER (1..3600)
     
     --  The range of ifIndex, i.e. (1..ifNumber)
     
     InterfaceIndex ::= INTEGER
     
     --  Potential Priorities for the Designated Router Election
     
     DesignatedRouterPriority ::= INTEGER (0..'FF'h)
     
     --  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
     --      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.
     
     TOSType ::= INTEGER (0..31)
     
     
     
     
     
     
     
     
     
     
     
     
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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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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) }
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The current version number of the OSPF  proto-
                col is 2."
            REFERENCE
               "OSPF Version 2, Title"
           ::= { ospfGeneralGroup 3 }
     
     
         ospfAreaBdrRtrStatus OBJECT-TYPE
             SYNTAX   TruthValue
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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   Gauge
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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   Counter
             ACCESS   read-only
             STATUS   mandatory
             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   Counter
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER (-1..'7FFFFFFF'h)
             ACCESS   read-write
             STATUS   mandatory
             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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         ospfMulticastForwarding OBJECT-TYPE
             SYNTAX   INTEGER
                         -- 0    no multicast forwarding
                         -- 1    intra-area multicast forwarding
                         -- 2    inter-area multicast forwarding
                         -- 3    inter-area and intra-area multicast forwarding
                         -- 4    inter-AS multicast forwarding
                         -- 5    inter-AS and intra-Area multicast forwarding
                         -- 6    inter-AS and inter-Area multicast forwarding
                         -- 7    multicast forwarding anywhere
             ACCESS   read-write
             STATUS   mandatory
             DESCRIPTION
                "A bit mask indicating the  limits  on  Network
                Layer  multicast  (Class  D) forwarding.  It is
                represented as a sum of the following:
                       if intra-Area forwarding is permitted, 1; else 0
                       if inter-Area forwarding is permitted, 2; else 0
                       if inter-AS forwarding is permitted, 4; else 0
               By default, no multicast 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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
                 INTEGER,
             ospfImportAsExtern
                 INTEGER,
             ospfSpfRuns
                 Counter,
             ospfAreaBdrRtrCount
                 Gauge,
             ospfAsBdrRtrCount
                 Gauge,
     
     
     
     
     
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             ospfAreaLsaCount
                 Gauge,
             ospfAreaLsaCksumSum
                 INTEGER,
             ospfAreaSummary
                 INTEGER,
             ospfAreaStatus
                 Validation
         }
     
         ospfAreaId OBJECT-TYPE
             SYNTAX   AreaID
             ACCESS   read-write
             STATUS   mandatory
             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   INTEGER
         -- none (0),
         -- simplePassword (1)
         -- reserved for specification by IANA (> 1)
             ACCESS   read-write
             STATUS   mandatory
             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)
                         }
             ACCESS   read-write
             STATUS   mandatory
             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   Counter
             ACCESS   read-only
             STATUS   mandatory
             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   Gauge
             ACCESS   read-only
             STATUS   mandatory
             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   Gauge
             ACCESS   read-only
             STATUS   mandatory
             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   Gauge
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             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)
                      }
             ACCESS   read-only
             STATUS   mandatory
             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   Validation
             ACCESS   read-write
             STATUS   mandatory
             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."
            DEFVAL   { valid }
            ::= { 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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
                 Validation,
             ospfStubMetricType
                 INTEGER
         }
     
     
     
     
     
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         ospfStubAreaID OBJECT-TYPE
             SYNTAX   AreaID
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfStubStatus OBJECT-TYPE
             SYNTAX   Validation
             ACCESS   read-write
             STATUS   mandatory
             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."
            DEFVAL   { valid }
            ::= { ospfStubAreaEntry 4 }
     
     
         ospfStubMetricType OBJECT-TYPE
             SYNTAX   INTEGER {
                         ospfMetric (1),         -- OSPF Metric
                         comparableCost (2),     -- external type 1
                         nonComparable  (3)      -- external type 2
                         }
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             DESCRIPTION
                "A single Link State Advertisement."
            INDEX { ospfLsdbAreaId, ospfLsdbType,
        ospfLsdbLsid, ospfLsdbRouterId }
            ::= { ospfLsdbTable 1 }
     
     OspfLsdbEntry ::=
         SEQUENCE {
             ospfLsdbAreaId
                 AreaID,
             ospfLsdbType
                 INTEGER,
             ospfLsdbLsid
                 IpAddress,
             ospfLsdbRouterId
                 RouterID,
             ospfLsdbSequence
                 INTEGER,
             ospfLsdbAge
                 INTEGER,
             ospfLsdbChecksum
                 INTEGER,
     
     
     
     
     
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             ospfLsdbAdvertisement
                 OCTET STRING
         }
     
         ospfLsdbAreaId OBJECT-TYPE
             SYNTAX   AreaID
             ACCESS   read-only
             STATUS   mandatory
             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)
                         }
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER    -- Should be 0..MaxAge
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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,
     
     
     
     
     
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             ospfAreaRangeMask
                 IpAddress,
             ospfAreaRangeStatus
                 INTEGER
         }
     
         ospfAreaRangeAreaID OBJECT-TYPE
             SYNTAX   AreaID
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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   INTEGER {
                         advertiseMatching (1),
                         invalid (2),
                         doNotAdvertiseMatching (3)
                         }
             ACCESS   read-write
             STATUS   mandatory
             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.
     
                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 4 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
                 Validation
         }
     
     
     
     
     
     
     
     
     
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         ospfHostIpAddress OBJECT-TYPE
             SYNTAX   IpAddress
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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   Validation
             ACCESS   read-write
             STATUS   mandatory
             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."
            DEFVAL   { valid }
            ::= { ospfHostEntry 4 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             DESCRIPTION
                "The OSPF Interface Entry describes one  inter-
                face from the viewpoint of OSPF."
            INDEX { ospfIfIpAddress, ospfAddressLessIf }
            ::= { ospfIfTable 1 }
     
     OspfIfEntry ::=
         SEQUENCE {
             ospfIfIpAddress
                 IpAddress,
             ospfAddressLessIf
                 INTEGER,
             ospfIfAreaId
                 AreaID,
             ospfIfType
                 INTEGER,
             ospfIfAdminStat
                 Status,
             ospfIfRtrPriority
                 DesignatedRouterPriority,
             ospfIfTransitDelay
                 UpToMaxAge,
     
     
     
     
     
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             ospfIfRetransInterval
                 UpToMaxAge,
             ospfIfHelloInterval
                 HelloRange,
             ospfIfRtrDeadInterval
                 PositiveInteger,
             ospfIfPollInterval
                 PositiveInteger,
             ospfIfState
                 INTEGER,
             ospfIfDesignatedRouter
                 IpAddress,
             ospfIfBackupDesignatedRouter
                 IpAddress,
             ospfIfEvents
                 Counter,
             ospfIfAuthKey
                 OCTET STRING,
             ospfIfStatus
                 Validation,
             ospfIfMulticastForwarding
                 INTEGER
         }
     
         ospfIfIpAddress OBJECT-TYPE
             SYNTAX   IpAddress
             ACCESS   read-write
             STATUS   mandatory
             DESCRIPTION
                "The IP address of this OSPF interface."
            ::= { ospfIfEntry 1 }
     
     
         ospfAddressLessIf OBJECT-TYPE
             SYNTAX   INTEGER
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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)
                      }
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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)
                      }
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The OSPF Interface State."
            DEFVAL { down }
            ::= { ospfIfEntry 12 }
     
     
         ospfIfDesignatedRouter OBJECT-TYPE
             SYNTAX   IpAddress
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The  IP  Address  of  the  Backup   Designated
                Router."
            DEFVAL   { '00000000'H }    -- 0.0.0.0
            ::= { ospfIfEntry 14 }
     
     
         ospfIfEvents OBJECT-TYPE
             SYNTAX   Counter
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The number of times this  OSPF  interface  has
                changed its state, or an error has occurred."
            ::= { ospfIfEntry 15 }
     
     
         ospfIfAuthKey OBJECT-TYPE
             SYNTAX   OCTET STRING
             ACCESS   read-write
             STATUS   mandatory
             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.
     
                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 }
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfIfStatus OBJECT-TYPE
             SYNTAX   Validation
             ACCESS   read-write
             STATUS   mandatory
             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."
            DEFVAL   { valid }
            ::= { ospfIfEntry 17 }
     
     
         ospfIfMulticastForwarding OBJECT-TYPE
             SYNTAX   INTEGER {
                                 disabled (1),   -- no multicast forwarding
                                 multicast (2),  -- using multicast address
                                 unicast (3)     -- to each OSPF neighbor
                         }
             ACCESS   read-write
             STATUS   mandatory
             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 meaningul
                on point to point and NBMA interfaces, and set-
                ting  ospfMulticastForwarding  to 0 effectively
                disables all multicast forwarding."
            DEFVAL { disabled }
            ::= { 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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
                 INTEGER,
             ospfIfMetricTOS
                 TOSType,
             ospfIfMetricValue
                 Metric,
             ospfIfMetricStatus
                 Validation
         }
     
         ospfIfMetricIpAddress OBJECT-TYPE
             SYNTAX   IpAddress
             ACCESS   read-write
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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   Validation
             ACCESS   read-write
             STATUS   mandatory
             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."
            DEFVAL   { valid }
            ::= { 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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
     
     
     
     
     
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                 INTEGER,
             ospfVirtIfEvents
                 Counter,
             ospfVirtIfAuthKey
                 OCTET STRING,
             ospfVirtIfStatus
                 Validation
         }
     
         ospfVirtIfAreaID OBJECT-TYPE
             SYNTAX   AreaID
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             DESCRIPTION
                "The Router ID of the Virtual Neighbor."
            ::= { ospfVirtIfEntry 2 }
     
     
         ospfVirtIfTransitDelay OBJECT-TYPE
             SYNTAX   UpToMaxAge
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
                      }
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "OSPF virtual interface states."
            DEFVAL   { down }
            ::= { ospfVirtIfEntry 7 }
     
     
         ospfVirtIfEvents OBJECT-TYPE
             SYNTAX   Counter
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The number of state changes or error events on
                this Virtual Link"
            ::= { ospfVirtIfEntry 8 }
     
     
         ospfVirtIfAuthKey OBJECT-TYPE
             SYNTAX   OCTET STRING
             ACCESS   read-write
             STATUS   mandatory
             DESCRIPTION
                "If Authentication Type is simplePassword,  the
                device  will left adjust and zero fill to 8 oc-
                tets.
     
                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 }
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtIfStatus OBJECT-TYPE
             SYNTAX   Validation
             ACCESS   read-write
             STATUS   mandatory
             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."
            DEFVAL   { valid }
            ::= { 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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
                 INTEGER,
             ospfNbrPriority
                 DesignatedRouterPriority,
             ospfNbrState
                 INTEGER,
     
     
     
     
     
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             ospfNbrEvents
                 Counter,
             ospfNbrLSRetransQLen
                 Gauge,
             ospfNbmaNbrStatus
                 INTEGER
         }
     
         ospfNbrIpAddr OBJECT-TYPE
             SYNTAX   IpAddress
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-write
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "A Bit Mask corresponding to the neighbor's op-
                tions field.
     
                Bit 0, if set, indicates that the area  accepts
                and  operates on external information; if zero,
                it is a stub area.
     
                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."
            REFERENCE
               "OSPF Version 2, Section 12.1.2 Options"
           DEFVAL { 0 }
           ::= { ospfNbrEntry 4 }
     
     
         ospfNbrPriority OBJECT-TYPE
             SYNTAX   DesignatedRouterPriority
             ACCESS   read-write
             STATUS   mandatory
             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 }
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfNbrState OBJECT-TYPE
             SYNTAX   INTEGER {
                         down (1),
                         attempt (2),
                         init (3),
                         twoWay (4),
                         exchangeStart (5),
                         exchange (6),
                         loading (7),
                         full (8)
                      }
             ACCESS   read-only
             STATUS   mandatory
             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   Counter
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The number of times this neighbor relationship
                has changed state, or an error has occurred."
            ::= { ospfNbrEntry 7 }
     
     
         ospfNbrLSRetransQLen OBJECT-TYPE
             SYNTAX   Gauge
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The  current  length  of  the   retransmission
                queue."
            ::= { ospfNbrEntry 8 }
     
     
     
     
     
     
     
     
     
     
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         ospfNbmaNbrStatus OBJECT-TYPE
             SYNTAX   INTEGER {
                         dynamic (1),    -- learned through protocol
                         invalid (2),    -- set to delete
                         permanent (3)   -- configured address
                      }
             ACCESS   read-write
             STATUS   mandatory
             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."
            DEFVAL { permanent }
            ::= { ospfNbrEntry 9 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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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
             ACCESS   not-accessible
             STATUS   mandatory
             DESCRIPTION
                "A table of virtual neighbor information."
            REFERENCE
               "OSPF Version 2, Section 15  Virtual Links"
           ::= { ospf 11 }
     
     
         ospfVirtNbrEntry OBJECT-TYPE
             SYNTAX   OspfVirtNbrEntry
             ACCESS   not-accessible
             STATUS   mandatory
             DESCRIPTION
                "Virtual neighbor information."
            INDEX { ospfVirtNbrArea, ospfVirtNbrRtrId }
            ::= { ospfVirtNbrTable 1 }
     
     OspfVirtNbrEntry ::=
         SEQUENCE {
             ospfVirtNbrArea
                 AreaID,
             ospfVirtNbrRtrId
                 RouterID,
             ospfVirtNbrIpAddr
                 IpAddress,
             ospfVirtNbrOptions
                 INTEGER,
             ospfVirtNbrState
                 INTEGER,
             ospfVirtNbrEvents
                 Counter,
             ospfVirtNbrLSRetransQLen
                 Gauge
         }
     
     
     
     
     
     
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         ospfVirtNbrArea OBJECT-TYPE
             SYNTAX   AreaID
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The Transit Area Identifier."
            ::= { ospfVirtNbrEntry 1 }
     
     
         ospfVirtNbrRtrId OBJECT-TYPE
             SYNTAX   RouterID
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "A  32-bit  integer  uniquely  identifying  the
                neighboring router in the Autonomous System."
            ::= { ospfVirtNbrEntry 2 }
     
     
         ospfVirtNbrIpAddr OBJECT-TYPE
             SYNTAX   IpAddress
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The IP address this Virtual  Neighbor  is  us-
                ing."
            ::= { ospfVirtNbrEntry 3 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtNbrOptions OBJECT-TYPE
             SYNTAX   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             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)
                      }
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The state of the  Virtual  Neighbor  Relation-
                ship."
            ::= { ospfVirtNbrEntry 5 }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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         ospfVirtNbrEvents OBJECT-TYPE
             SYNTAX   Counter
             ACCESS   read-only
             STATUS   mandatory
             DESCRIPTION
                "The number of  times  this  virtual  link  has
                changed its state, or an error has occurred."
            ::= { ospfVirtNbrEntry 6 }
     
     
         ospfVirtNbrLSRetransQLen OBJECT-TYPE
             SYNTAX   Gauge
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             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
             ACCESS   not-accessible
             STATUS   mandatory
             DESCRIPTION
                "A single Link State Advertisement."
            INDEX { ospfExtLsdbType, ospfExtLsdbLsid, ospfExtLsdbRouterId }
            ::= { ospfExtLsdbTable 1 }
     
     OspfExtLsdbEntry ::=
         SEQUENCE {
             ospfExtLsdbType
                 INTEGER,
             ospfExtLsdbLsid
                 IpAddress,
             ospfExtLsdbRouterId
                 RouterID,
             ospfExtLsdbSequence
                 INTEGER,
             ospfExtLsdbAge
     
     
     
     
     
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                 INTEGER,
             ospfExtLsdbChecksum
                 INTEGER,
             ospfExtLsdbAdvertisement
                 OCTET STRING
         }
     
         ospfExtLsdbType OBJECT-TYPE
             SYNTAX   INTEGER {
                         asExternalLink (5)
                         }
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER    -- Should be 0..MaxAge
             ACCESS   read-only
             STATUS   mandatory
             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   INTEGER
             ACCESS   read-only
             STATUS   mandatory
             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
             ACCESS   read-only
             STATUS   mandatory
             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 IP Forwarding 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.
     
     -- ipForwardProto is, of course, ospf (13).
     
     -- ipForwardAge is the time since the route was first calculated,
     -- as opposed to the time since the last SPF run.
     
     -- ipForwardInfo 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 }
     
     -- ipForwardMetric1 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.
     
     -- ipForwardMetric2 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.
     
     -- ipForwardMetric3, ipForwardMetric4, and ipForwardMetric5 are
     -- unused.
     
     
     
     
     
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     END
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     7.  Acknowledgements
     
     This document was produced by the OSPF Working Group.
     
     8.  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,
     
     
     
     
     
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          1987).
     
     [8]  Information processing systems - Open Systems
          Interconnection - Specification of Basic Encoding Rules
          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 Draft, Internet Engineering
          Task Force, (September, 1990).
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Table of Contents
     
     
     1 Status of this Memo ...................................    1
     2 Abstract ..............................................    2
     3 The Network Management Framework ......................    3
     4 Objects ...............................................    4
     4.1 Format of Definitions ...............................    4
     4.2 Changes from RFC 1253 ...............................    4
     5 Overview ..............................................    7
     5.1 Textual Conventions .................................    7
     5.2 Structure of MIB ....................................    7
     5.2.1 General Variables .................................    7
     5.2.2 Area Data Structure and Area Stub Metric Table ....    8
     5.2.3 Link State Database and External Link State  Da-
          tabase .............................................    8
     5.2.4 Address Table and Host Tables .....................    8
     5.2.5 Interface and Interface Metric Tables .............    8
     5.2.6 Virtual Interface Table ...........................    8
     5.2.7 Neighbor and Virtual Neighbor Tables ..............    8
     5.3 Conceptual Row Creation .............................    8
     5.4 Default Configuration ...............................    9
     6 Definitions ...........................................   12
     6.1 OSPF General Variables ..............................   13
     6.2 OSPF Area Table .....................................   18
     6.3 OSPF Area Default Metrics ...........................   23
     6.4 OSPF Link State Database ............................   26
     6.5 OSPF Address Range Table ............................   31
     6.6 OSPF Host Table .....................................   34
     6.7 OSPF Interface Table ................................   37
     6.8 OSPF Interface Metrics ..............................   45
     6.9 OSPF Virtual Interface Table ........................   49
     6.10 OSPF Neighbor Table ................................   54
     6.11 OSPF Virtual Neighbor Table ........................   59
     6.12 OSPF External Link State Database ..................   63
     6.13 OSPF Route Table Use ...............................   68
     7 Acknowledgements ......................................   70
     8 References ............................................   70
     
     
     
     
     
     
     
     
     
     
     
     
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