Draft         Token Ring Extensions to RMON MIB         May 93
          
          
            Token Ring Extensions to the Remote Network Monitoring MIB
          
                             Mon May 10 18:45:56 1993
          
          
                                Steven Waldbusser
                            Carnegie Mellon University
                                waldbusser@cmu.edu
          
          
          
          
          
          
          1.  Status of this Memo
          
          This memo provides information for the Internet community.  It
          does not specify any standard.  Distribution of this memo is
          unlimited.  Please send comments to the authors.
          
          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.
          
          
          
          2.  Abstract
          
          This memo defines extensions to the Remote Network Monitoring
          MIB for managing 802.5 Token Ring networks.
          
          The Remote Network Monitoring MIB, RFC1271, defines a
          framework for remote monitoring functions implemented on a
          network probe.  That MIB defines objects broken down into nine
          functional groups.  Some of those functional groups, the
          statistics and the history groups, have a view of the data-
          link layer that is specific to the media type and require
          specific objects to be defined for each media type.  RFC1271
          defined those specific objects necessary for Ethernet.  This
          companion memo defines those specific objects necessary for
          Token Ring LANs.
          
          In addition, this memo defines some additional monitoring
          functions specifically for Token Ring.  These are defined in
          the Ring Station Group, the Ring Station Order Group, the Ring
          Station Configuration Group, and the Source Routing Statistics
          Group.
          
          
          
          
          
          
          
          
          
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          3.  The Network Management Framework
          
          The Internet-standard Network Management Framework consists of
          three components.  They are:
          
          RFC 1155[1] which defines the SMI, the mechanisms used for
          describing and naming objects for the purpose of management.
          RFC 1212[2] defines a more concise description mechanism,
          which is wholly consistent with the SMI.
          
          RFC 1213[3] which defines MIB-II, the core set of managed
          objects for the Internet suite of protocols.
          
          RFC 1157[4] 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.
          
          Managed objects are accessed via a virtual information store,
          termed the Management Information Base or MIB.  Within a given
          MIB module, objects are defined using RFC 1212's OBJECT-TYPE
          macro.  At a minimum, each object has a name, a syntax, an
          access-level, and an implementation-status.
          
          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[5]
          language is used for this purpose.  However, RFC 1155
          purposely restricts the ASN.1 constructs which may be used.
          These restrictions are explicitly made for simplicity.
          
          The access-level of an object type defines whether it makes
          "protocol sense" to read and/or write the value of an instance
          of the object type.  (This access-level is independent of any
          administrative authorization policy.)
          
          The implementation-status of an object type indicates whether
          the object is mandatory, optional, obsolete, or deprecated.
          
          
          
          
          
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          4.  Guidelines for implementing RFC1271 objects on a Token
          Ring network
          
          Wherever a MacAddress is to be used in this MIB the source
          routing bit is stripped off.  The resulting address will be
          consistently valid for all packets sent by a particular node.
          
          
          4.1.  Host Group
          
          Only Token Ring isolating errors will increment the error
          counter for a particular hostEntry.  The isolating errors are:
          lineErrors, burstErrors, ACErrors, InternalErrors, and
          AbortErrors.  In addition, congestionErrors will also be
          counted for each hostEntry.  These errors will be incremented
          in the host entry of the station that reports the errors in an
          error report frame.
          
          The hostOutPkts and hostOutOctets counters shall not be
          incremented for packets with errors.
          
          
          4.2.  Matrix Group
          
          Error counters are never incremented.
          
          
          4.3.  Filter Group
          
          The following conditions make up the status bitmask for token
          ring networks:
               bit #    Error
                   3    First packet after some packets were dropped
                   4    Packet with the Frame Copied Bit set
                   5    Packet with the Address Recognized Bit set
          
          For the purpose of the packet match algorithm, the filters
          assume a 32 byte RIF field.  Thus, when matching, the filter
          is compared to the packet starting at the AC byte of the
          packet, until the end of the RIF field; then the unused RIF
          bytes in the filter are skipped and matching proceeds from
          that point.  Any filter "care" bits in the RIF that don't
          correspond to bytes in the input packet will cause the filter
          to fail.
          
          
          
          
          
          
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          4.4.  Other comments
          
          Because soft error report packets may be sent with assured
          delivery, some errors may be accidently reported twice on
          devices that perform the RMON function promiscuously.
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          5.  Overview of the RMON Token Ring Extensions MIB
          
          The Remote Network Monitoring MIB, RFC1271, defines a
          framework for remote monitoring functions implemented on a
          network probe.  That MIB defines objects broken down into nine
          functional groups.  Some of those functional groups, the
          statistics and the history groups, have a view of the data-
          link layer that is specific to the media type and require
          specific objects to be defined for each media type.  RFC1271
          defined those specific objects necessary for Ethernet.  This
          MIB defines contains four groups that define those specific
          objects necessary for Token Ring LANs.
          
          In addition, this memo defines some additional monitoring
          functions specifically for Token Ring.  These are defined in
          the Ring Station Group, the Ring Station Order Group, the Ring
          Station Configuration Group, and the Source Routing Statistics
          Group.
          
          5.1.  The Token Ring Statistics Groups
          
          The Token Ring statistics groups contain current utilization
          and error statistics.  The statistics are broken down into two
          groups, the Token Ring Mac-Layer Statistics Group and the
          Token Ring Promiscuous Statistics Group.  The Token Ring Mac-
          Layer Statistics Group collects information from Mac Layer,
          including error reports for the ring and ring utilization of
          the Mac Layer.  The Token Ring Promiscuous Statistics Group
          collects utilization statistics from data packets collected
          promiscuously.
          
          5.2.  The Token Ring History Groups
          
          The Token Ring History Groups contain historical utilization
          and error statistics.  The statistics are broken down into two
          groups, the Token Ring Mac-Layer History Group and the Token
          Ring Promiscuous History Group.  The Token Ring Mac-Layer
          History Group collects information from Mac Layer, including
          error reports for the ring and ring utilization of the Mac
          Layer.  The Token Ring Promiscuous History Group collects
          utilization statistics from data packets collected
          promiscuously.
          
          
          
          
          
          
          
          
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          5.3.  The Token Ring Ring Station Group
          
          The Token Ring Ring Station Group contains statistics and
          status information associated with each Token Ring station on
          the local ring.  In addition, this group provides status
          information for each ring being monitored.
          
          5.4.  The Token Ring Ring Station Order Group
          
          The Token Ring Ring Station Order Group provides the order of
          the stations on monitored rings.
          
          5.5.  The Token Ring Ring Station Config Group
          
          The Token Ring Ring Station Config Group manages token ring
          stations through active means.  Any station on a monitored
          ring may be removed or have configuration information
          downloaded from it.
          
          5.6.  The Source Routing Group
          
          The Source Routing Group contains utilization statistics
          derived from source routing information optionally present in
          token ring packets.
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          6.  Definitions
          
          RFCXXXX-MIB DEFINITIONS ::= BEGIN
          
          IMPORTS
              Counter, TimeTicks          FROM RFC1155-SMI
              OBJECT-TYPE                 FROM RFC-1212
          
          -- For Internet Draft only:
              OwnerString, EntryStatus    -- Textual Conventions
                  FROM RFC1271-MIB
              experimental                FROM RFC1155-SMI;
              rmon    OBJECT IDENTIFIER ::= { experimental 27 }
              statistics        OBJECT IDENTIFIER ::= { rmon 1 }
              history           OBJECT IDENTIFIER ::= { rmon 2 }
          
          -- For RFC only:
          --    OwnerString, EntryStatus,   -- Textual Conventions
          --    rmon, statistics, history
          --        FROM RFC1271-MIB;
          
          
             -- All representations of MAC addresses in this MIB Module use,
             -- as a textual convention (i.e. this convention does not affect
             -- their encoding), the data type:
          
             MacAddress ::= OCTET STRING (SIZE (6))    -- a 6 octet address in
                                                       -- the "canonical" order
             -- defined by IEEE 802.1a, i.e., as if it were transmitted least
             -- significant bit first, even though 802.5 (in contrast to other
             -- 802.x protocols) requires MAC addresses to be transmitted most
             -- significant bit first.
          
              TimeInterval ::= INTEGER
              -- A period of time, measured in units of 0.01 seconds.
          
          --  This MIB module uses the extended OBJECT-TYPE macro as
          --  defined in [2].
          
          --  Token Ring Remote Network Monitoring MIB
          
              tokenRing             OBJECT IDENTIFIER ::= { rmon 10 }
          
          
          
          
          
          
          
          
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          -- The Token Ring Mac-Layer Statistics Group
          --
          -- Implementation of this group is optional
          
          tokenRingMLStatsTable OBJECT-TYPE
              SYNTAX SEQUENCE OF TokenRingMLStatsEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of Mac-Layer Token Ring statistics
                      entries."
              ::= { statistics 2 }
          
          tokenRingMLStatsEntry OBJECT-TYPE
              SYNTAX TokenRingMLStatsEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of Mac-Layer statistics kept for a
                      particular Token Ring interface."
              INDEX { tokenRingMLStatsIndex }
              ::= { tokenRingMLStatsTable 1 }
          
          -- As an example, an instance of the tokenRingMLStatsMacOctets object
          -- might be named tokenRingMLStatsMacOctets.1
          
          TokenRingMLStatsEntry ::= SEQUENCE {
              tokenRingMLStatsIndex                     INTEGER,
              tokenRingMLStatsDataSource                OBJECT IDENTIFIER,
              tokenRingMLStatsDropEvents                Counter,
              tokenRingMLStatsMacOctets                 Counter,
              tokenRingMLStatsMacPkts                   Counter,
              tokenRingMLStatsRingPurgeEvents           Counter,
              tokenRingMLStatsRingPurgePkts             Counter,
              tokenRingMLStatsBeaconEvents              Counter,
              tokenRingMLStatsBeaconTime                TimeInterval,
              tokenRingMLStatsBeaconPkts                Counter,
              tokenRingMLStatsClaimTokenEvents          Counter,
              tokenRingMLStatsClaimTokenPkts            Counter,
              tokenRingMLStatsNAUNChanges               Counter,
              tokenRingMLStatsLineErrors                Counter,
              tokenRingMLStatsInternalErrors            Counter,
              tokenRingMLStatsBurstErrors               Counter,
              tokenRingMLStatsACErrors                  Counter,
              tokenRingMLStatsAbortErrors               Counter,
          
          
          
          
          
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              tokenRingMLStatsLostFrameErrors           Counter,
              tokenRingMLStatsCongestionErrors          Counter,
              tokenRingMLStatsFrameCopiedErrors         Counter,
              tokenRingMLStatsFrequencyErrors           Counter,
              tokenRingMLStatsTokenErrors               Counter,
              tokenRingMLStatsSoftErrorReports          Counter,
              tokenRingMLStatsRingPollEvents            Counter,
              tokenRingMLStatsOwner                     OwnerString,
              tokenRingMLStatsStatus                    EntryStatus
          }
          
          tokenRingMLStatsIndex OBJECT-TYPE
              SYNTAX INTEGER (1..65535)
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of this object uniquely identifies this
                      tokenRingMLStats entry."
              ::= { tokenRingMLStatsEntry 1 }
          
          tokenRingMLStatsDataSource OBJECT-TYPE
              SYNTAX OBJECT IDENTIFIER
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "This object identifies the source of the data
                      that this tokenRingMLStats entry is configured to
                      analyze.  This source can be any tokenRing
                      interface on this device.  In order to identify a
                      particular interface, this object shall identify
                      the instance of the ifIndex object, defined in
                      MIB-II [3], for the desired interface.  For
                      example, if an entry were to receive data from
                      interface #1, this object would be set to
                      ifIndex.1.
          
                      The statistics in this group reflect all error
                      reports on the local network segment attached to
                      the identified interface.
          
                      This object may not be modified if the associated
                      tokenRingMLStatsStatus object is equal to
                      valid(1)."
              ::= { tokenRingMLStatsEntry 2 }
          
          
          
          
          
          
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          tokenRingMLStatsDropEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of events in which packets were
                      dropped by the probe due to lack of resources.
                      Note that this number is not necessarily the
                      number of packets dropped; it is just the number
                      of times this condition has been detected.  This
                      value is the same as the corresponding
                      tokenRingPStatsDropEvents."
              ::= { tokenRingMLStatsEntry 3 }
          
          tokenRingMLStatsMacOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of octets of data in MAC packets
                      (excluding those in packets with FCS errors)
                      received on the network (excluding framing bits
                      but including FCS octets)."
              ::= { tokenRingMLStatsEntry 4 }
          
          tokenRingMLStatsMacPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of MAC packets (excluding
                      packets with errors) received."
              ::= { tokenRingMLStatsEntry 5 }
          
          tokenRingMLStatsRingPurgeEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of times that the ring enters
                      the ring purge state from normal ring state.  The
                      ring purge state that comes in response to the
                      claim token or beacon state is not counted."
              ::= { tokenRingMLStatsEntry 6 }
          
          
          
          
          
          
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          tokenRingMLStatsRingPurgePkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of ring purge MAC packets
                      detected by probe."
              ::= { tokenRingMLStatsEntry 7 }
          
          tokenRingMLStatsBeaconEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of times that the ring enters a
                      beaconing state (beaconFrameStreamingState,
                      beaconBitStreamingState,
                      beaconSetRecoveryModeState, or
                      beaconRingSignalLossState) from a non-beaconing
                      state.  Note that a change of the source address
                      of the beacon packet does not constitute a new
                      beacon event."
              ::= { tokenRingMLStatsEntry 8 }
          
          tokenRingMLStatsBeaconTime OBJECT-TYPE
              SYNTAX TimeInterval
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total amount of time that the ring has been
                      in the beaconing state."
              ::= { tokenRingMLStatsEntry 9 }
          
          tokenRingMLStatsBeaconPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of beacon MAC packets detected
                      by the probe."
              ::= { tokenRingMLStatsEntry 10 }
          
          tokenRingMLStatsClaimTokenEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
          
          
          
          
          
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              STATUS mandatory
              DESCRIPTION
                      "The total number of times that the ring enters
                      the claim token state from normal ring state or
                      ring purge state.  The claim token state that
                      comes in response to a beacon state is not
                      counted."
              ::= { tokenRingMLStatsEntry 11 }
          
          tokenRingMLStatsClaimTokenPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of claim token MAC packets
                      detected by the probe."
              ::= { tokenRingMLStatsEntry 12 }
          
          tokenRingMLStatsNAUNChanges OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of NAUN changes detected by the
                      probe."
              ::= { tokenRingMLStatsEntry 13 }
          
          tokenRingMLStatsLineErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of line errors reported in error
                      reporting packets detected by the probe."
              ::= { tokenRingMLStatsEntry 14 }
          
          tokenRingMLStatsInternalErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of adapter internal errors
                      reported in error reporting packets detected by
                      the probe."
              ::= { tokenRingMLStatsEntry 15 }
          
          
          
          
          
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          tokenRingMLStatsBurstErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of burst errors reported in
                      error reporting packets detected by the probe."
              ::= { tokenRingMLStatsEntry 16 }
          
          tokenRingMLStatsACErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of AC (Address Copied)  errors
                      reported in error reporting packets detected by
                      the probe."
              ::= { tokenRingMLStatsEntry 17 }
          
          tokenRingMLStatsAbortErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of abort delimiters reported in
                      error reporting packets detected by the probe."
              ::= { tokenRingMLStatsEntry 18 }
          
          tokenRingMLStatsLostFrameErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of lost frame errors reported in
                      error reporting packets detected by the probe."
              ::= { tokenRingMLStatsEntry 19 }
          
          tokenRingMLStatsCongestionErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of receive congestion errors
                      reported in error reporting packets detected by
                      the probe."
          
          
          
          
          
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              ::= { tokenRingMLStatsEntry 20 }
          
          tokenRingMLStatsFrameCopiedErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frame copied errors reported
                      in error reporting packets detected by the probe."
              ::= { tokenRingMLStatsEntry 21 }
          
          tokenRingMLStatsFrequencyErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frequency errors reported in
                      error reporting packets detected by the probe."
              ::= { tokenRingMLStatsEntry 22 }
          
          tokenRingMLStatsTokenErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of token errors reported in
                      error reporting packets detected by the probe."
              ::= { tokenRingMLStatsEntry 23 }
          
          tokenRingMLStatsSoftErrorReports OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of soft error report frames
                      detected by the probe."
              ::= { tokenRingMLStatsEntry 24 }
          
          tokenRingMLStatsRingPollEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of ring poll events detected by
                      the probe (i.e. the number of ring polls initiated
          
          
          
          
          
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                      by the active monitor that were detected)."
              ::= { tokenRingMLStatsEntry 25 }
          
          tokenRingMLStatsOwner OBJECT-TYPE
              SYNTAX OwnerString
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "The entity that configured this entry and is
                      therefore using the resources assigned to it."
              ::= { tokenRingMLStatsEntry 26 }
          
          tokenRingMLStatsStatus OBJECT-TYPE
              SYNTAX EntryStatus
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "The status of this tokenRingMLStats entry."
              ::= { tokenRingMLStatsEntry 27 }
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          -- The Token Ring Promiscuous Statistics Group
          --
          -- Implementation of this group is optional
          
          tokenRingPStatsTable OBJECT-TYPE
              SYNTAX SEQUENCE OF TokenRingPStatsEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of promiscuous Token Ring statistics
                      entries."
              ::= { statistics 3 }
          
          tokenRingPStatsEntry OBJECT-TYPE
              SYNTAX TokenRingPStatsEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of promiscuous statistics kept for
                      non-MAC packets on a particular Token Ring
                      interface."
              INDEX { tokenRingPStatsIndex }
              ::= { tokenRingPStatsTable 1 }
          
          -- As an example, an instance of the tokenRingPStatsDataOctets object
          -- might be named tokenRingPStatsDataOctets.1
          
          TokenRingPStatsEntry ::= SEQUENCE {
              tokenRingPStatsIndex                          INTEGER,
              tokenRingPStatsDataSource                     OBJECT IDENTIFIER,
              tokenRingPStatsDropEvents                     Counter,
              tokenRingPStatsDataOctets                     Counter,
              tokenRingPStatsDataPkts                       Counter,
              tokenRingPStatsDataBroadcastPkts              Counter,
              tokenRingPStatsDataMulticastPkts              Counter,
              tokenRingPStatsDataPkts18to63Octets           Counter,
              tokenRingPStatsDataPkts64to127Octets          Counter,
              tokenRingPStatsDataPkts128to255Octets         Counter,
              tokenRingPStatsDataPkts256to511Octets         Counter,
              tokenRingPStatsDataPkts512to1023Octets        Counter,
              tokenRingPStatsDataPkts1024to2047Octets       Counter,
              tokenRingPStatsDataPkts2048to4095Octets       Counter,
              tokenRingPStatsDataPkts4096to8191Octets       Counter,
              tokenRingPStatsDataPkts8192to18000Octets      Counter,
              tokenRingPStatsDataPktsGreaterThan18000Octets Counter,
          
          
          
          
          
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              tokenRingPStatsOwner                          OwnerString,
              tokenRingPStatsStatus                         EntryStatus
          }
          
          tokenRingPStatsIndex OBJECT-TYPE
              SYNTAX INTEGER (1..65535)
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of this object uniquely identifies this
                      tokenRingPStats entry."
              ::= { tokenRingPStatsEntry 1 }
          
          tokenRingPStatsDataSource OBJECT-TYPE
              SYNTAX OBJECT IDENTIFIER
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "This object identifies the source of the data
                      that this tokenRingPStats entry is configured to
                      analyze.  This source can be any tokenRing
                      interface on this device.  In order to identify a
                      particular interface, this object shall identify
                      the instance of the ifIndex object, defined in
                      MIB-II [3], for the desired interface.  For
                      example, if an entry were to receive data from
                      interface #1, this object would be set to
                      ifIndex.1.
          
                      The statistics in this group reflect all non-MAC
                      packets on the local network segment attached to
                      the identified interface.
          
                      This object may not be modified if the associated
                      tokenRingPStatsStatus object is equal to
                      valid(1)."
              ::= { tokenRingPStatsEntry 2 }
          
          tokenRingPStatsDropEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of events in which packets were
                      dropped by the probe due to lack of resources.
          
          
          
          
          
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                      Note that this number is not necessarily the
                      number of packets dropped; it is just the number
                      of times this condition has been detected.  This
                      value is the same as the corresponding
                      tokenRingMLStatsDropEvents"
              ::= { tokenRingPStatsEntry 3 }
          
          tokenRingPStatsDataOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of octets of data (excluding
                      those in bad packets) received on the network
                      (excluding framing bits but including FCS octets)
                      in non-MAC packets."
              ::= { tokenRingPStatsEntry 4 }
          
          tokenRingPStatsDataPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received."
              ::= { tokenRingPStatsEntry 5 }
          
          tokenRingPStatsDataBroadcastPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good non-MAC packets received
                      that were directed to an LLC broadcast address
                      (0xFFFFFFFFFFFF or 0xC000FFFFFFFF)."
              ::= { tokenRingPStatsEntry 6 }
          
          tokenRingPStatsDataMulticastPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good non-MAC packets received
                      that were directed to a local or global multicast
                      or functional address.  Note that this number does
          
          
          
          
          
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                      not include packets directed to the broadcast
                      address."
              ::= { tokenRingPStatsEntry 7 }
          
          tokenRingPStatsDataPkts18to63Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between 18
                      and 63 octets in length inclusive, excluding
                      framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 8 }
          
          tokenRingPStatsDataPkts64to127Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between 64
                      and 127 octets in length inclusive, excluding
                      framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 9 }
          
          tokenRingPStatsDataPkts128to255Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between
                      128 and 255 octets in length inclusive, excluding
                      framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 10 }
          
          tokenRingPStatsDataPkts256to511Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between
                      256 and 511 octets in length inclusive, excluding
          
          
          
          
          
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                      framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 11 }
          
          tokenRingPStatsDataPkts512to1023Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between
                      512 and 1023 octets in length inclusive, excluding
                      framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 12 }
          
          tokenRingPStatsDataPkts1024to2047Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between
                      1024 and 2047 octets in length inclusive,
                      excluding framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 13 }
          
          tokenRingPStatsDataPkts2048to4095Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between
                      2048 and 4095 octets in length inclusive,
                      excluding framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 14 }
          
          tokenRingPStatsDataPkts4096to8191Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between
                      4096 and 8191 octets in length inclusive,
                      excluding framing bits but including FCS octets."
          
          
          
          
          
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              ::= { tokenRingPStatsEntry 15 }
          
          tokenRingPStatsDataPkts8192to18000Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were between
                      8192 and 18000 octets in length inclusive,
                      excluding framing bits but including FCS octets."
              ::= { tokenRingPStatsEntry 16 }
          
          tokenRingPStatsDataPktsGreaterThan18000Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received that were greater
                      than 18000 octets in length, excluding framing
                      bits but including FCS octets."
              ::= { tokenRingPStatsEntry 17 }
          
          tokenRingPStatsOwner OBJECT-TYPE
              SYNTAX OwnerString
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "The entity that configured this entry and is
                      therefore using the resources assigned to it."
              ::= { tokenRingPStatsEntry 18 }
          
          tokenRingPStatsStatus OBJECT-TYPE
              SYNTAX EntryStatus
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "The status of this tokenRingPStats entry."
              ::= { tokenRingPStatsEntry 19 }
          
          
          
          
          
          
          
          
          
          
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          -- The Token Ring History Groups
          
          -- When an entry in the historyControlTable is created that
          -- identifies a token ring interface as its
          -- historyControlDataSource, the probe shall create corresponding
          -- entries in the tokenRingMLHistoryTable and/or the
          -- tokenRingPHistoryTable, depending on which groups it supports.
          
          
          
          -- The Token Ring Mac-Layer History Group
          --
          -- Implementation of this group is optional.
          -- Implementation of this group requires implementation of the
          -- historyControl group from RFC1271.
          
          tokenRingMLHistoryTable OBJECT-TYPE
              SYNTAX SEQUENCE OF TokenRingMLHistoryEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of Mac-Layer Token Ring statistics
                      entries."
              ::= { history 3 }
          
          tokenRingMLHistoryEntry OBJECT-TYPE
              SYNTAX TokenRingMLHistoryEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of Mac-Layer statistics kept for a
                      particular Token Ring interface."
              INDEX { tokenRingMLHistoryIndex,  tokenRingMLHistorySampleIndex }
              ::= { tokenRingMLHistoryTable 1 }
          
          -- As an example, an instance of the tokenRingMLHistoryMacOctets
          -- object might be named tokenRingMLHistoryMacOctets.1.27
          
          TokenRingMLHistoryEntry ::= SEQUENCE {
              tokenRingMLHistoryIndex                     INTEGER,
              tokenRingMLHistorySampleIndex               INTEGER,
              tokenRingMLHistoryIntervalStart             TimeTicks,
              tokenRingMLHistoryDropEvents                Counter,
              tokenRingMLHistoryMacOctets                 Counter,
              tokenRingMLHistoryMacPkts                   Counter,
          
          
          
          
          
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              tokenRingMLHistoryRingPurgeEvents           Counter,
              tokenRingMLHistoryRingPurgePkts             Counter,
              tokenRingMLHistoryBeaconEvents              Counter,
              tokenRingMLHistoryBeaconTime                TimeInterval,
              tokenRingMLHistoryBeaconPkts                Counter,
              tokenRingMLHistoryClaimTokenEvents          Counter,
              tokenRingMLHistoryClaimTokenPkts            Counter,
              tokenRingMLHistoryNAUNChanges               Counter,
              tokenRingMLHistoryLineErrors                Counter,
              tokenRingMLHistoryInternalErrors            Counter,
              tokenRingMLHistoryBurstErrors               Counter,
              tokenRingMLHistoryACErrors                  Counter,
              tokenRingMLHistoryAbortErrors               Counter,
              tokenRingMLHistoryLostFrameErrors           Counter,
              tokenRingMLHistoryCongestionErrors          Counter,
              tokenRingMLHistoryFrameCopiedErrors         Counter,
              tokenRingMLHistoryFrequencyErrors           Counter,
              tokenRingMLHistoryTokenErrors               Counter,
              tokenRingMLHistorySoftErrorReports          Counter,
              tokenRingMLHistoryRingPollEvents            Counter,
              tokenRingMLHistoryActiveStations            INTEGER
          }
          
          tokenRingMLHistoryIndex OBJECT-TYPE
              SYNTAX INTEGER (1..65535)
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The history of which this entry is a part.  The
                      history identified by a particular value of this
                      index is the same history as identified by the
                      same value of historyControlIndex."
              ::= { tokenRingMLHistoryEntry 1 }
          
          tokenRingMLHistorySampleIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "An index that uniquely identifies the particular
                      Mac-Layer sample this entry represents among all
                      Mac-Layer samples associated with the same
                      historyControlEntry.  This index starts at 1 and
                      increases by one as each new sample is taken."
              ::= { tokenRingMLHistoryEntry 2 }
          
          
          
          
          
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          tokenRingMLHistoryIntervalStart OBJECT-TYPE
              SYNTAX TimeTicks
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of sysUpTime at the start of the
                      interval over which this sample was measured.  If
                      the probe keeps track of the time of day, it
                      should start the first sample of the history at a
                      time such that when the next hour of the day
                      begins, a sample is started at that instant.  Note
                      that following this rule may require the probe to
                      delay collecting the first sample of the history,
                      as each sample must be of the same interval.  Also
                      note that the sample which is currently being
                      collected is not accessible in this table until
                      the end of its interval."
              ::= { tokenRingMLHistoryEntry 3 }
          
          tokenRingMLHistoryDropEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of events in which packets were
                      dropped by the probe due to lack of resources
                      during this sampling interval.  Note that this
                      number is not necessarily the number of packets
                      dropped, it is just the number of times this
                      condition has been detected."
              ::= { tokenRingMLHistoryEntry 4 }
          
          tokenRingMLHistoryMacOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of octets of data in MAC packets
                      (excluding those in bad MAC packets) received on
                      the network during this sampling interval
                      (excluding framing bits but including FCS
                      octets)."
              ::= { tokenRingMLHistoryEntry 5 }
          
          tokenRingMLHistoryMacPkts OBJECT-TYPE
          
          
          
          
          
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              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of MAC packets (excluding
                      packets with errors) received during this sampling
                      interval."
              ::= { tokenRingMLHistoryEntry 6 }
          
          tokenRingMLHistoryRingPurgeEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of times that the ring entered
                      the ring purge state from normal ring state during
                      this sampling interval.  The ring purge state that
                      comes from the claim token or beacon state is not
                      counted."
              ::= { tokenRingMLHistoryEntry 7 }
          
          tokenRingMLHistoryRingPurgePkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of Ring Purge MAC packets
                      detected by the probe during this sampling
                      interval."
              ::= { tokenRingMLHistoryEntry 8 }
          
          tokenRingMLHistoryBeaconEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of times that the ring enters a
                      beaconing state (beaconFrameStreamingState,
                      beaconBitStreamingState,
                      beaconSetRecoveryModeState, or
                      beaconRingSignalLossState) during this sampling
                      interval.  Note that a change of the source
                      address of the beacon packet does not constitute a
                      new beacon event."
              ::= { tokenRingMLHistoryEntry 9 }
          
          
          
          
          
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          tokenRingMLHistoryBeaconTime OBJECT-TYPE
              SYNTAX TimeInterval
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The amount of time that the ring has been in the
                      beaconing state during this sampling interval."
              ::= { tokenRingMLHistoryEntry 10 }
          
          tokenRingMLHistoryBeaconPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of beacon MAC packets detected
                      by the probe during this sampling interval."
              ::= { tokenRingMLHistoryEntry 11 }
          
          tokenRingMLHistoryClaimTokenEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of times that the ring enters
                      the claim token state from normal ring state or
                      ring purge state during this sampling interval.
                      The claim token state that comes from the beacon
                      state is not counted."
              ::= { tokenRingMLHistoryEntry 12 }
          
          tokenRingMLHistoryClaimTokenPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of claim token MAC packets
                      detected by the probe during this sampling
                      interval."
              ::= { tokenRingMLHistoryEntry 13 }
          
          tokenRingMLHistoryNAUNChanges OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
          
          
          
          
          
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                      "The total number of NAUN changes detected by the
                      probe during this sampling interval."
              ::= { tokenRingMLHistoryEntry 14 }
          
          tokenRingMLHistoryLineErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of line errors reported in error
                      reporting packets detected by the probe during
                      this sampling interval."
              ::= { tokenRingMLHistoryEntry 15 }
          
          tokenRingMLHistoryInternalErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of adapter internal errors
                      reported in error reporting packets detected by
                      the probe during this sampling interval."
              ::= { tokenRingMLHistoryEntry 16 }
          
          tokenRingMLHistoryBurstErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of burst errors reported in
                      error reporting packets detected by the probe
                      during this sampling interval."
              ::= { tokenRingMLHistoryEntry 17 }
          
          tokenRingMLHistoryACErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of AC (Address Copied) errors
                      reported in error reporting packets detected by
                      the probe during this sampling interval."
              ::= { tokenRingMLHistoryEntry 18 }
          
          tokenRingMLHistoryAbortErrors OBJECT-TYPE
          
          
          
          
          
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              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of abort delimiters reported in
                      error reporting packets detected by the probe
                      during this sampling interval."
              ::= { tokenRingMLHistoryEntry 19 }
          
          tokenRingMLHistoryLostFrameErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of lost frame errors reported in
                      error reporting packets detected by the probe
                      during this sampling interval."
              ::= { tokenRingMLHistoryEntry 20 }
          
          tokenRingMLHistoryCongestionErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of receive congestion errors
                      reported in error reporting packets detected by
                      the probe during this sampling interval."
              ::= { tokenRingMLHistoryEntry 21 }
          
          tokenRingMLHistoryFrameCopiedErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frame copied errors reported
                      in error reporting packets detected by the probe
                      during this sampling interval."
              ::= { tokenRingMLHistoryEntry 22 }
          
          tokenRingMLHistoryFrequencyErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frequency errors reported in
          
          
          
          
          
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                      error reporting packets detected by the probe
                      during this sampling interval."
              ::= { tokenRingMLHistoryEntry 23 }
          
          tokenRingMLHistoryTokenErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of token errors reported in
                      error reporting packets detected by the probe
                      during this sampling interval."
              ::= { tokenRingMLHistoryEntry 24 }
          
          tokenRingMLHistorySoftErrorReports OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of soft error report frames
                      detected by the probe during this sampling
                      interval."
              ::= { tokenRingMLHistoryEntry 25 }
          
          tokenRingMLHistoryRingPollEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of ring poll events detected by
                      the probe during this sampling interval."
              ::= { tokenRingMLHistoryEntry 26 }
          
          tokenRingMLHistoryActiveStations OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The maximum number of active stations on the ring
                      detected by the probe during this sampling
                      interval."
              ::= { tokenRingMLHistoryEntry 27}
          
          
          
          
          
          
          
          
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          -- The Token Ring Promiscuous History Group
          --
          -- Implementation of this group is optional.
          -- Implementation of this group requires the implementation of the
          -- historyControl group from RFC1271.
          
          tokenRingPHistoryTable OBJECT-TYPE
              SYNTAX SEQUENCE OF TokenRingPHistoryEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of promiscuous Token Ring statistics
                      entries."
              ::= { history 4 }
          
          tokenRingPHistoryEntry OBJECT-TYPE
              SYNTAX TokenRingPHistoryEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of promiscuous statistics kept for a
                      particular Token Ring interface."
              INDEX { tokenRingPHistoryIndex, tokenRingPHistorySampleIndex }
              ::= { tokenRingPHistoryTable 1 }
          
          -- As an example, an instance of the tokenRingPHistoryDataPkts object
          -- might be named tokenRingPHistoryDataPkts.1.27
          
          TokenRingPHistoryEntry ::= SEQUENCE {
              tokenRingPHistoryIndex                          INTEGER,
              tokenRingPHistorySampleIndex                    INTEGER,
              tokenRingPHistoryIntervalStart                  TimeTicks,
              tokenRingPHistoryDropEvents                     Counter,
              tokenRingPHistoryDataOctets                     Counter,
              tokenRingPHistoryDataPkts                       Counter,
              tokenRingPHistoryDataBroadcastPkts              Counter,
              tokenRingPHistoryDataMulticastPkts              Counter,
              tokenRingPHistoryDataPkts18to63Octets           Counter,
              tokenRingPHistoryDataPkts64to127Octets          Counter,
              tokenRingPHistoryDataPkts128to255Octets         Counter,
              tokenRingPHistoryDataPkts256to511Octets         Counter,
              tokenRingPHistoryDataPkts512to1023Octets        Counter,
              tokenRingPHistoryDataPkts1024to2047Octets       Counter,
              tokenRingPHistoryDataPkts2048to4095Octets       Counter,
              tokenRingPHistoryDataPkts4096to8191Octets       Counter,
          
          
          
          
          
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              tokenRingPHistoryDataPkts8192to18000Octets      Counter,
              tokenRingPHistoryDataPktsGreaterThan18000Octets Counter
          }
          
          tokenRingPHistoryIndex OBJECT-TYPE
              SYNTAX INTEGER (1..65535)
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The history of which this entry is a part.  The
                      history identified by a particular value of this
                      index is the same history as identified by the
                      same value of historyControlIndex."
              ::= { tokenRingPHistoryEntry 1 }
          
          tokenRingPHistorySampleIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "An index that uniquely identifies the particular
                      sample this entry represents among all samples
                      associated with the same historyControlEntry.
                      This index starts at 1 and increases by one as
                      each new sample is taken."
              ::= { tokenRingPHistoryEntry 2 }
          
          tokenRingPHistoryIntervalStart OBJECT-TYPE
              SYNTAX TimeTicks
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of sysUpTime at the start of the
                      interval over which this sample was measured.  If
                      the probe keeps track of the time of day, it
                      should start the first sample of the history at a
                      time such that when the next hour of the day
                      begins, a sample is started at that instant.  Note
                      that following this rule may require the probe to
                      delay collecting the first sample of the history,
                      as each sample must be of the same interval.  Also
                      note that the sample which is currently being
                      collected is not accessible in this table until
                      the end of its interval."
              ::= { tokenRingPHistoryEntry 3 }
          
          
          
          
          
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          tokenRingPHistoryDropEvents OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of events in which packets were
                      dropped by the probe due to lack of resources
                      during this sampling interval.  Note that this
                      number is not necessarily the number of packets
                      dropped, it is just the number of times this
                      condition has been detected."
              ::= { tokenRingPHistoryEntry 4 }
          
          tokenRingPHistoryDataOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of octets of data (excluding
                      those in bad packets) received on the network
                      (excluding framing bits but including FCS octets)
                      in non-MAC packets during this sampling interval."
              ::= { tokenRingPHistoryEntry 5 }
          
          tokenRingPHistoryDataPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval."
              ::= { tokenRingPHistoryEntry 6 }
          
          tokenRingPHistoryDataBroadcastPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good non-MAC packets received
                      during this sampling interval that were directed
                      to an LLC broadcast address (0xFFFFFFFFFFFF or
                      0xC000FFFFFFFF)."
              ::= { tokenRingPHistoryEntry 7 }
          
          
          
          
          
          
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          tokenRingPHistoryDataMulticastPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good non-MAC packets received
                      during this sampling interval that were directed
                      to a local or global multicast or functional
                      address.  Note that this number does not include
                      packets directed to the broadcast address."
              ::= { tokenRingPHistoryEntry 8 }
          
          tokenRingPHistoryDataPkts18to63Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 18 and 63 octets in
                      length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 9 }
          
          tokenRingPHistoryDataPkts64to127Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 64 and 127 octets in
                      length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 10 }
          
          tokenRingPHistoryDataPkts128to255Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 128 and 255 octets in
                      length inclusive, excluding framing bits but
          
          
          
          
          
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                      including FCS octets."
              ::= { tokenRingPHistoryEntry 11 }
          
          tokenRingPHistoryDataPkts256to511Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 256 and 511 octets in
                      length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 12 }
          
          tokenRingPHistoryDataPkts512to1023Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 512 and 1023 octets in
                      length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 13 }
          
          tokenRingPHistoryDataPkts1024to2047Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 1024 and 2047 octets in
                      length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 14 }
          
          tokenRingPHistoryDataPkts2048to4095Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
          
          
          
          
          
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                      packets with errors) received during this sampling
                      interval that were between 2048 and 4095 octets in
                      length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 15 }
          
          tokenRingPHistoryDataPkts4096to8191Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 4096 and 8191 octets in
                      length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 16 }
          
          tokenRingPHistoryDataPkts8192to18000Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were between 8192 and 18000 octets
                      in length inclusive, excluding framing bits but
                      including FCS octets."
              ::= { tokenRingPHistoryEntry 17 }
          
          tokenRingPHistoryDataPktsGreaterThan18000Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of non-MAC packets (excluding
                      packets with errors) received during this sampling
                      interval that were greater than 18000 octets in
                      length, excluding framing bits but including FCS
                      octets."
              ::= { tokenRingPHistoryEntry 18 }
          
          
          
          
          
          
          
          
          
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          -- The Token Ring Ring Station Group
          --
          -- Implementation of this group is optional
          --
          -- Although the ringStationTable stores entries only for those
          -- stations physically attached to the local ring and the number of
          -- stations attached to a ring is limited, a probe may still need to
          -- free resources when resources grow tight.  In such a situation, it
          -- is suggested that the probe free only inactive stations, and to
          -- first free the stations that have been inactive for the longest
          -- time.
          
          ringStationControlTable OBJECT-TYPE
              SYNTAX SEQUENCE OF RingStationControlEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of ringStation table control entries."
              ::= { tokenRing 1 }
          
          ringStationControlEntry OBJECT-TYPE
              SYNTAX RingStationControlEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of parameters that set up the discovery of
                      stations on a particular interface and the
                      collection of statistics about these stations."
              INDEX { ringStationControlIfIndex }
              ::= { ringStationControlTable 1 }
          
          -- As an example, an instance of the ringStationControlIfIndex object
          -- might be named ringStationControlIfIndex.1
          
          RingStationControlEntry ::= SEQUENCE {
              ringStationControlIfIndex          INTEGER,
              ringStationControlTableSize        INTEGER,
              ringStationControlActiveStations   INTEGER,
              ringStationControlRingState        INTEGER,
              ringStationControlBeaconSender     MacAddress,
              ringStationControlBeaconNAUN       MacAddress,
              ringStationControlActiveMonitor    MacAddress,
              ringStationControlOrderChanges     Counter,
              ringStationControlOwner            OwnerString,
              ringStationControlStatus           EntryStatus
          
          
          
          
          
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          }
          
          ringStationControlIfIndex OBJECT-TYPE
              SYNTAX INTEGER (1..65535)
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of this object uniquely identifies the
                      interface on this remote network monitoring device
                      from which ringStation data is collected.  The
                      interface identified by a particular value of this
                      object is the same interface as identified by the
                      same value of the ifIndex object, defined in MIB-
                      II [3]."
              ::= { ringStationControlEntry 1 }
          
          ringStationControlTableSize OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The number of ringStationEntries in the
                      ringStationTable associated with this
                      ringStationControlEntry."
              ::= { ringStationControlEntry 2 }
          
          ringStationControlActiveStations OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The number of active ringStationEntries in the
                      ringStationTable associated with this
                      ringStationControlEntry."
              ::= { ringStationControlEntry 3 }
          
          ringStationControlRingState OBJECT-TYPE
              SYNTAX INTEGER {
                  normalOperation(1),
                  ringPurgeState(2),
                  claimTokenState(3),
                  beaconFrameStreamingState(4),
                  beaconBitStreamingState(5),
                  beaconRingSignalLossState(6),
                  beaconSetRecoveryModeState(7)
          
          
          
          
          
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              }
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The current status of this ring."
              ::= { ringStationControlEntry 4 }
          
          ringStationControlBeaconSender OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The address of the sender of the last beacon
                      frame received by the probe on this ring.  If no
                      beacon frames have been received, this object
                      shall be equal to six octets of zero."
              ::= { ringStationControlEntry 5 }
          
          ringStationControlBeaconNAUN OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The address of the NAUN in the last beacon frame
                      received by the probe on this ring.  If no beacon
                      frames have been received, this object shall be
                      equal to six octets of zero."
              ::= { ringStationControlEntry 6 }
          
          ringStationControlActiveMonitor OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The address of the Active Monitor on this
                      segment.  If this address is unknown, this object
                      shall be equal to six octets of zero."
              ::= { ringStationControlEntry 7 }
          
          ringStationControlOrderChanges OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The number of add and delete events in the
          
          
          
          
          
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                      ringStationOrderTable optionally associated with
                      this ringStationControlEntry."
              ::= { ringStationControlEntry 8 }
          
          ringStationControlOwner OBJECT-TYPE
              SYNTAX OwnerString
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "The entity that configured this entry and is
                      therefore using the resources assigned to it."
              ::= { ringStationControlEntry 9 }
          
          ringStationControlStatus OBJECT-TYPE
              SYNTAX EntryStatus
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "The status of this ringStationControl entry.
          
                      If this object is not equal to valid(1), all
                      associated entries in the ringStationTable shall
                      be deleted by the agent."
              ::= { ringStationControlEntry 10 }
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          ringStationTable OBJECT-TYPE
              SYNTAX SEQUENCE OF RingStationEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of ring station entries.  An entry will
                      exist for each station that is now or has
                      previously been detected as physically present on
                      this ring."
               ::= { tokenRing 2 }
          
          ringStationEntry OBJECT-TYPE
              SYNTAX RingStationEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of statistics for a particular
                      station that has been discovered on a ring
                      monitored by this device."
              INDEX { ringStationIfIndex, ringStationMacAddress }
              ::= { ringStationTable 1 }
          
          -- As an example, an instance of the ringStationStationStatus object
          -- might be named ringStationStationStatus.1.16.0.90.0.64.131
          
          RingStationEntry ::= SEQUENCE {
              ringStationIfIndex                INTEGER,
              ringStationMacAddress             MacAddress,
              ringStationLastNAUN               MacAddress,
              ringStationStationStatus          INTEGER,
              ringStationLastEnterTime          TimeTicks,
              ringStationLastExitTime           TimeTicks,
              ringStationDuplicateAddresses     Counter,
              ringStationInLineErrors           Counter,
              ringStationOutLineErrors          Counter,
              ringStationInternalErrors         Counter,
              ringStationInBurstErrors          Counter,
              ringStationOutBurstErrors         Counter,
              ringStationACErrors               Counter,
              ringStationAbortErrors            Counter,
              ringStationLostFrameErrors        Counter,
              ringStationCongestionErrors       Counter,
              ringStationFrameCopiedErrors      Counter,
              ringStationFrequencyErrors        Counter,
              ringStationTokenErrors            Counter,
          
          
          
          
          
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              ringStationInBeaconErrors         Counter,
              ringStationOutBeaconErrors        Counter,
              ringStationInsertions             Counter
          }
          
          ringStationIfIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of this object uniquely identifies the
                      interface on this remote network monitoring device
                      on which this station was detected.  The interface
                      identified by a particular value of this object is
                      the same interface as identified by the same value
                      of the ifIndex object, defined in MIB-II [3]."
              ::= { ringStationEntry 1 }
          
          ringStationMacAddress OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The physical address of this station."
              ::= { ringStationEntry 2 }
          
          ringStationLastNAUN OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The physical address of last known NAUN of this
                      station."
              ::= { ringStationEntry 3 }
          
          ringStationStationStatus OBJECT-TYPE
              SYNTAX INTEGER {
                  active(1),          -- actively participating in ring poll.
                  inactive(2),        -- Not participating in ring poll
                  forcedRemoval(3)    -- Forced off ring by network management.
              }
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The status of this station on the ring."
          
          
          
          
          
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              ::= { ringStationEntry 4 }
          
          ringStationLastEnterTime OBJECT-TYPE
              SYNTAX TimeTicks
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of sysUpTime at the time this station
                      last entered the ring.  If the time is unknown,
                      this value shall be zero."
              ::= { ringStationEntry 5 }
          
          ringStationLastExitTime OBJECT-TYPE
              SYNTAX TimeTicks
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of sysUpTime at the time the probe
                      detected that this station last exited the ring.
                      If the time is unknown, this value shall be zero."
              ::= { ringStationEntry 6 }
          
          ringStationDuplicateAddresses OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The number of times this station experienced a
                      duplicate address error."
              ::= { ringStationEntry 7 }
          
          ringStationInLineErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of line errors reported by this
                      station in error reporting packets detected by the
                      probe."
              ::= { ringStationEntry 8 }
          
          ringStationOutLineErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
          
          
          
          
          
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              DESCRIPTION
                      "The total number of line errors reported in error
                      reporting packets sent by the nearest active
                      downstream neighbor of this station and detected
                      by the probe."
              ::= { ringStationEntry 9 }
          
          ringStationInternalErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of adapter internal errors
                      reported by this station in error reporting
                      packets detected by the probe."
              ::= { ringStationEntry 10 }
          
          ringStationInBurstErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of burst errors reported by this
                      station in error reporting packets detected by the
                      probe."
              ::= { ringStationEntry 11 }
          
          ringStationOutBurstErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of burst errors reported in
                      error reporting packets sent by the nearest active
                      downstream neighbor of this station and detected
                      by the probe."
              ::= { ringStationEntry 12 }
          
          ringStationACErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of AC (Address Copied) errors
                      reported in error reporting packets sent by the
          
          
          
          
          
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                      nearest active downstream neighbor of this station
                      and detected by the probe."
              ::= { ringStationEntry 13 }
          
          ringStationAbortErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of abort delimiters reported by
                      this station in error reporting packets detected
                      by the probe."
              ::= { ringStationEntry 14 }
          
          ringStationLostFrameErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of lost frame errors reported by
                      this station in error reporting packets detected
                      by the probe."
              ::= { ringStationEntry 15 }
          
          ringStationCongestionErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of receive congestion errors
                      reported by this station in error reporting
                      packets detected by the probe."
              ::= { ringStationEntry 16 }
          
          ringStationFrameCopiedErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frame copied errors reported
                      by this station in error reporting packets
                      detected by the probe."
              ::= { ringStationEntry 17 }
          
          ringStationFrequencyErrors OBJECT-TYPE
          
          
          
          
          
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              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frequency errors reported by
                      this station in error reporting packets detected
                      by the probe."
              ::= { ringStationEntry 18 }
          
          ringStationTokenErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of token errors reported by this
                      station in error reporting frames detected by the
                      probe."
              ::= { ringStationEntry 19 }
          
          ringStationInBeaconErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of beacon frames sent by this
                      station and detected by the probe."
              ::= { ringStationEntry 20 }
          
          ringStationOutBeaconErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of beacon frames detected by the
                      probe that name this station as the NAUN."
              ::= { ringStationEntry 21 }
          
          ringStationInsertions OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The number of times the probe detected this
                      station inserting onto the ring."
              ::= { ringStationEntry 22 }
          
          
          
          
          
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          -- The Token Ring Ring Station Order Group
          --
          -- Implementation of this group is optional
          --
          
          -- The ringStationOrderTable
          
          ringStationOrderTable OBJECT-TYPE
              SYNTAX SEQUENCE OF RingStationOrderEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of ring station entries for stations in
                      the ring poll, ordered by their ring-order."
              ::= { tokenRing 3 }
          
          ringStationOrderEntry OBJECT-TYPE
              SYNTAX RingStationOrderEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of statistics for a particular
                      station that is active on a ring monitored by this
                      device.  This table will contain information for
                      every interface that has a
                      ringStationControlStatus equal to valid."
              INDEX { ringStationOrderIfIndex, ringStationOrderOrderIndex }
              ::= { ringStationOrderTable 1 }
          
          -- As an example, an instance of the ringStationOrderMacAddress
          -- object might be named ringStationOrderMacAddress.1.14
          
          RingStationOrderEntry ::= SEQUENCE {
              ringStationOrderIfIndex             INTEGER,
              ringStationOrderOrderIndex          INTEGER,
              ringStationOrderMacAddress          MacAddress
          }
          
          ringStationOrderIfIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of this object uniquely identifies the
                      interface on this remote network monitoring device
          
          
          
          
          
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          Draft         Token Ring Extensions to RMON MIB         May 93
          
          
                      on which this station was detected.  The interface
                      identified by a particular value of this object is
                      the same interface as identified by the same value
                      of the ifIndex object, defined in MIB-II [3]."
              ::= { ringStationOrderEntry 1 }
          
          ringStationOrderOrderIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "This index denotes the location of this station
                      with respect to other stations on the ring.  This
                      index is one more than the number of hops
                      downstream that this station is from the rmon
                      probe.  The rmon probe itself gets the value one."
              ::= { ringStationOrderEntry 2 }
          
          ringStationOrderMacAddress OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The physical address of this station."
              ::= { ringStationOrderEntry 3 }
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          Draft         Token Ring Extensions to RMON MIB         May 93
          
          
          -- The Token Ring Ring Station Config Group
          --
          -- Implementation of this group is optional.
          -- The ring station config group manages token ring nodes through
          -- active means.
          
          ringStationConfigControlTable OBJECT-TYPE
              SYNTAX SEQUENCE OF RingStationConfigControlEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of ring station configuration control
                      entries."
              ::= { tokenRing 4 }
          
          ringStationConfigControlEntry OBJECT-TYPE
              SYNTAX RingStationConfigControlEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "This entry controls active management of stations
                      by the probe.  One entry exists in this table for
                      each active station in the ringStationTable."
              INDEX { ringStationConfigControlIfIndex,
                      ringStationConfigControlMacAddress }
              ::= { ringStationConfigControlTable 1 }
          
          -- As an example, an instance of the ringStationConfigControlRemove
          -- object might be named
          -- ringStationConfigControlRemove.1.16.0.90.0.64.131
          
          RingStationConfigControlEntry ::= SEQUENCE {
              ringStationConfigControlIfIndex         INTEGER,
              ringStationConfigControlMacAddress      MacAddress,
              ringStationConfigControlRemove          INTEGER,
              ringStationConfigControlUpdateStats     INTEGER
          }
          
          ringStationConfigControlIfIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of this object uniquely identifies the
                      interface on this remote network monitoring device
          
          
          
          
          
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          Draft         Token Ring Extensions to RMON MIB         May 93
          
          
                      on which this station was detected.  The interface
                      identified by a particular value of this object is
                      the same interface as identified by the same value
                      of the ifIndex object, defined in MIB-II [3]."
              ::= { ringStationConfigControlEntry 1 }
          
          ringStationConfigControlMacAddress OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The physical address of this station."
              ::= { ringStationConfigControlEntry 2 }
          
          ringStationConfigControlRemove OBJECT-TYPE
              SYNTAX INTEGER {
                  stable(1),
                  removing(2)
              }
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "Setting this object to `removing(2)' causes a
                      Remove Station MAC frame to be sent.  The agent
                      will set this object to `stable(1)' after
                      processing the request."
              ::= { ringStationConfigControlEntry 3 }
          
          ringStationConfigControlUpdateStats OBJECT-TYPE
              SYNTAX INTEGER {
                  stable(1),
                  updating(2)
              }
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "Setting this object to `updating(2)' causes the
                      configuration information associate with this
                      entry to be updated.  The agent will set this
                      object to `stable(1)' after processing the
                      request."
              ::= { ringStationConfigControlEntry 4 }
          
          
          
          
          
          
          
          
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          --  The ringStationConfig Table
          --
          --  Entries exist in this table after an active
          --  configuration query has completed successfully for
          --  a station.  This query is initiated by the associated
          --  ringStationConfigControlUpdateStats variable.
          
          
          ringStationConfigTable OBJECT-TYPE
              SYNTAX SEQUENCE OF RingStationConfigEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of configuration entries for stations on a
                      ring monitored by this probe."
              ::= { tokenRing 5 }
          
          ringStationConfigEntry OBJECT-TYPE
              SYNTAX RingStationConfigEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of statistics for a particular
                      station that has been discovered on a ring
                      monitored by this probe."
              INDEX { ringStationConfigIfIndex, ringStationConfigMacAddress }
              ::= { ringStationConfigTable 1 }
          
          -- As an example, an instance of the ringStationConfigLocation object
          -- might be named ringStationConfigLocation.1.16.0.90.0.64.131
          
          RingStationConfigEntry ::= SEQUENCE {
              ringStationConfigIfIndex            INTEGER,
              ringStationConfigMacAddress         MacAddress,
              ringStationConfigUpdateTime         TimeTicks,
              ringStationConfigLocation           OCTET STRING,
              ringStationConfigMicrocode          OCTET STRING,
              ringStationConfigGroupAddress       OCTET STRING,
              ringStationConfigFunctionalAddress  OCTET STRING
          }
          
          ringStationConfigIfIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
          
          
          
          
          
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              DESCRIPTION
                      "The value of this object uniquely identifies the
                      interface on this remote network monitoring device
                      on which this station was detected.  The interface
                      identified by a particular value of this object is
                      the same interface as identified by the same value
                      of the ifIndex object, defined in MIB-II [3]."
              ::= { ringStationConfigEntry 1 }
          
          ringStationConfigMacAddress OBJECT-TYPE
              SYNTAX MacAddress
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The physical address of this station."
              ::= { ringStationConfigEntry 2 }
          
          ringStationConfigUpdateTime OBJECT-TYPE
              SYNTAX TimeTicks
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of sysUpTime at the time this
                      configuration information was last updated
                      (completely)."
              ::= { ringStationConfigEntry 3 }
          
          ringStationConfigLocation OBJECT-TYPE
              SYNTAX OCTET STRING (SIZE(4))
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The assigned physical location of this station."
              ::= { ringStationConfigEntry 4 }
          
          ringStationConfigMicrocode OBJECT-TYPE
              SYNTAX OCTET STRING (SIZE(10))
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The microcode EC level of this station."
              ::= { ringStationConfigEntry 5 }
          
          ringStationConfigGroupAddress OBJECT-TYPE
              SYNTAX OCTET STRING (SIZE(4))
          
          
          
          
          
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              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The low-order 4 octets of the group address
                      recognized by this station."
              ::= { ringStationConfigEntry 6 }
          
          ringStationConfigFunctionalAddress OBJECT-TYPE
              SYNTAX OCTET STRING (SIZE(4))
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "the functional addresses recognized by this
                      station."
              ::= { ringStationConfigEntry 7 }
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          -- The Source Routing group
          --
          -- Implementation of this group is optional.
          -- The data in this group is collected from the source routing
          -- information potentially present in any token ring packet.
          -- This information will be valid only in a pure source route
          -- bridging environment.  In a transparent bridging or a mixed
          -- bridging environment, this information may not be accurate.
          
          sourceRoutingStatsTable OBJECT-TYPE
              SYNTAX SEQUENCE OF SourceRoutingStatsEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A list of source routing statistics entries."
              ::= { tokenRing 6 }
          
          sourceRoutingStatsEntry OBJECT-TYPE
              SYNTAX SourceRoutingStatsEntry
              ACCESS not-accessible
              STATUS mandatory
              DESCRIPTION
                      "A collection of source routing statistics kept
                      for a particular Token Ring interface."
              INDEX { sourceRoutingStatsIfIndex }
              ::= { sourceRoutingStatsTable 1 }
          
          -- As an example, an instance of the sourceRoutingStatsInFrames
          -- object might be named sourceRoutingStatsInFrames.1
          
          SourceRoutingStatsEntry ::= SEQUENCE {
              sourceRoutingStatsIfIndex                      INTEGER,
              sourceRoutingStatsRingNumber                   INTEGER,
              sourceRoutingStatsInFrames                     Counter,
                  -- in to our net
          
              sourceRoutingStatsOutFrames                    Counter,
                  -- out from our net
          
              sourceRoutingStatsThroughFrames                Counter,
                  -- through our net
          
              sourceRoutingStatsAllRoutesBroadcastFrames     Counter,
              sourceRoutingStatsSingleRouteBroadcastFrames   Counter,
              sourceRoutingStatsInOctets                     Counter,
          
          
          
          
          
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              sourceRoutingStatsOutOctets                    Counter,
              sourceRoutingStatsThroughOctets                Counter,
              sourceRoutingStatsAllRoutesBroadcastOctets     Counter,
              sourceRoutingStatsSingleRoutesBroadcastOctets  Counter,
              sourceRoutingStatsLocalLLCFrames               Counter,
              sourceRoutingStats1HopFrames                   Counter,
              sourceRoutingStats2HopsFrames                  Counter,
              sourceRoutingStats3HopsFrames                  Counter,
              sourceRoutingStats4HopsFrames                  Counter,
              sourceRoutingStats5HopsFrames                  Counter,
              sourceRoutingStats6HopsFrames                  Counter,
              sourceRoutingStats7HopsFrames                  Counter,
              sourceRoutingStats8HopsFrames                  Counter,
              sourceRoutingStatsMoreThan8HopsFrames          Counter,
              sourceRoutingStatsOwner                        OwnerString,
              sourceRoutingStatsStatus                       EntryStatus
          }
          
          sourceRoutingStatsIfIndex OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The value of this object uniquely identifies the
                      interface on this remote network monitoring device
                      on which source routing statistics will be
                      detected.  The interface identified by a
                      particular value of this object is the same
                      interface as identified by the same value of the
                      ifIndex object, defined in MIB-II [3]."
              ::= { sourceRoutingStatsEntry 1 }
          
          sourceRoutingStatsRingNumber OBJECT-TYPE
              SYNTAX INTEGER
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The ring number of the ring monitored by this
                      entry.  When any object in this entry is created,
                      the probe will attempt to discover the ring
                      number.  Only after the ring number is discovered
                      will this object be created.  After creating an
                      object in this entry, the management station
                      should poll this object to detect when it is
                      created.  Only after this object is created can
          
          
          
          
          
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                      the management station set the
                      sourceRoutingStatsStatus entry to valid(1)."
              ::= { sourceRoutingStatsEntry 2 }
          
          sourceRoutingStatsInFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The count of frames sent into this ring from
                      another ring."
              ::= { sourceRoutingStatsEntry 3 }
          
          sourceRoutingStatsOutFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The count of frames sent from this ring to
                      another ring."
              ::= { sourceRoutingStatsEntry 4 }
          
          sourceRoutingStatsThroughFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The count of frames sent from another ring,
                      through this ring, to another ring."
              ::= { sourceRoutingStatsEntry 5 }
          
          sourceRoutingStatsAllRoutesBroadcastFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good frames received that
                      were All Routes Broadcast."
              ::= { sourceRoutingStatsEntry 6 }
          
          sourceRoutingStatsSingleRouteBroadcastFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
          
          
          
          
          
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                      "The total number of good frames received that
                      were Single Route Broadcast."
              ::= { sourceRoutingStatsEntry 7 }
          
          sourceRoutingStatsInOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The count of octets in good frames sent into this
                      ring from another ring."
              ::= { sourceRoutingStatsEntry 8 }
          
          sourceRoutingStatsOutOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The count of octets in good frames sent from this
                      ring to another ring."
              ::= { sourceRoutingStatsEntry 9 }
          
          sourceRoutingStatsThroughOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The count of octets in good frames sent another
                      ring, through this ring, to another ring."
              ::= { sourceRoutingStatsEntry 10 }
          
          sourceRoutingStatsAllRoutesBroadcastOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of octets in good frames
                      received that were All Routes Broadcast."
              ::= { sourceRoutingStatsEntry 11 }
          
          sourceRoutingStatsSingleRoutesBroadcastOctets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
          
          
          
          
          
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                      "The total number of octets in good frames
                      received that were Single Route Broadcast."
              ::= { sourceRoutingStatsEntry 12 }
          
          sourceRoutingStatsLocalLLCFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received who had no
                      routing information and were not All Route
                      Broadcast Frames."
              ::= { sourceRoutingStatsEntry 13 }
          
          sourceRoutingStats1HopFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had 1 hop, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
              ::= { sourceRoutingStatsEntry 14 }
          
          sourceRoutingStats2HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had 2 hops, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
              ::= { sourceRoutingStatsEntry 15 }
          
          sourceRoutingStats3HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
          
          
          
          
          
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                      "The total number of frames received whose route
                      had 3 hops, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
              ::= { sourceRoutingStatsEntry 16 }
          
          sourceRoutingStats4HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had 4 hops, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
              ::= { sourceRoutingStatsEntry 17 }
          
          sourceRoutingStats5HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had 5 hops, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
              ::= { sourceRoutingStatsEntry 18 }
          
          sourceRoutingStats6HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had 6 hops, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
          
          
          
          
          
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              ::= { sourceRoutingStatsEntry 19 }
          
          sourceRoutingStats7HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had 7 hops, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
              ::= { sourceRoutingStatsEntry 20 }
          
          sourceRoutingStats8HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had 8 hops, were not All Route Broadcast Frames,
                      and whose source or destination were on this ring
                      (i.e. frames that had a RIF field and had this
                      ring number in the first or last entry of the RIF
                      field)."
              ::= { sourceRoutingStatsEntry 21 }
          
          sourceRoutingStatsMoreThan8HopsFrames OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of frames received whose route
                      had more than 8 hops, were not All Route Broadcast
                      Frames, and whose source or destination were on
                      this ring (i.e. frames that had a RIF field and
                      had this ring number in the first or last entry of
                      the RIF field)."
              ::= { sourceRoutingStatsEntry 22 }
          
          sourceRoutingStatsOwner OBJECT-TYPE
              SYNTAX OwnerString
              ACCESS read-write
              STATUS mandatory
          
          
          
          
          
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              DESCRIPTION
                      "The entity that configured this entry and is
                      therefore using the resources assigned to it."
              ::= { sourceRoutingStatsEntry 23 }
          
          sourceRoutingStatsStatus OBJECT-TYPE
              SYNTAX EntryStatus
              ACCESS read-write
              STATUS mandatory
              DESCRIPTION
                      "The status of this sourceRoutingStats entry."
              ::= { sourceRoutingStatsEntry 24 }
          
          END
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          7.  References
          
          [1]  M.T. Rose and K. McCloghrie, Structure and Identification
               of Management Information for TCP/IP-based internets.
               Request for Comments 1155, (May, 1990).
          
          [2]  M.T. Rose and K. McCloghrie, Concise MIB Definitions.
               Request for Comments 1212, (March, 1991).
          
          [3]  K. McCloghrie and M.T. Rose, Management Information Base
               for Network Management of TCP/IP-based internets: MIB-II.
               Request for Comments 1213, (March, 1991).
          
          [4]  J.D. Case, M.S. Fedor, M.L. Schoffstall, and J.R. Davin,
               Simple Network Management Protocol.  Request for Comments
               1157, (May, 1990).
          
          [5]  Information processing systems - Open Systems
               Interconnection - Specification of Abstract Syntax
               Notation One (ASN.1), International Organization for
               Standardization.  International Standard 8824, (December,
               1987).
          
          [6]  Steven Waldbusser, Remote Network Monitoring Management
               Information Base Request for Comments 1271, (November,
               1991).
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          Table of Contents
          
          
          1 Status of this Memo ...................................    1
          2 Abstract ..............................................    1
          3 The Network Management Framework ......................    2
          4 Guidelines for implementing RFC1271 objects on a To-
               ken Ring network ...................................    3
          4.1 Host Group ..........................................    3
          4.2 Matrix Group ........................................    3
          4.3 Filter Group ........................................    3
          4.4 Other comments ......................................    4
          5 Overview of the RMON Token Ring Extensions MIB ........    5
          5.1 The Token Ring Statistics Groups ....................    5
          5.2 The Token Ring History Groups .......................    5
          5.3 The Token Ring Ring Station Group ...................    6
          5.4 The Token Ring Ring Station Order Group .............    6
          5.5 The Token Ring Ring Station Config Group ............    6
          5.6 The Source Routing Group ............................    6
          6 Definitions ...........................................    7
          6.1 The Token Ring Mac-Layer Statistics Group ...........    8
          6.2 The Token Ring Promiscuous Statistics Group .........   16
          6.3 The Token Ring Mac-Layer History Group ..............   22
          6.4 The Token Ring Promiscuous History Group ............   30
          6.5 The Token Ring Ring Station Group ...................   36
          6.6 The Token Ring Ring Station Order Group .............   46
          6.7 The Token Ring Ring Station Config Group ............   48
          6.8 The Source Routing Group ............................   53
          7 References ............................................   61
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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