TOKEN-RING-RMON-MIB DEFINITIONS ::= BEGIN

          IMPORTS
              Counter, TimeTicks          FROM RFC1155-SMI
              OBJECT-TYPE                 FROM RFC-1212
              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 }


          -- 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,
              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 }

          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 that were not good frames)
                      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 that were not good frames) 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 }

          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
              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 }

          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."
              ::= { 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
                      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 }






          -- 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,
              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.
                      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 in good frames
                      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 in good
                      frames.  received."
              ::= { tokenRingPStatsEntry 5 }

          tokenRingPStatsDataBroadcastPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good non-MAC frames 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 frames received
                      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."
              ::= { tokenRingPStatsEntry 7 }

          tokenRingPStatsDataPkts18to63Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION


                      "The total number of good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames received
                      that were between 256 and 511 octets in length
                      inclusive, excluding framing bits but including
                      FCS octets."
              ::= { tokenRingPStatsEntry 11 }

          tokenRingPStatsDataPkts512to1023Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames received
                      that were between 4096 and 8191 octets in length
                      inclusive, excluding framing bits but including
                      FCS octets."
              ::= { tokenRingPStatsEntry 15 }

          tokenRingPStatsDataPkts8192to18000Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of good non-MAC frames 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 good non-MAC frames 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 }


          -- 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,
              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 }

          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 that were not good frames)
                      received on the network during this sampling
                      interval (excluding framing bits but including FCS
                      octets)."
              ::= { tokenRingMLHistoryEntry 5 }

          tokenRingMLHistoryMacPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                      "The total number of MAC packets (excluding those
                      that were not good frames) 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 }

          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
                      "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
              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
                      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}


          -- 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,
              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 }


          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 in good frames
                      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 good non-MAC frames 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 frames received
                      during this sampling interval that were directed
                      to an LLC broadcast address (0xFFFFFFFFFFFF or
                      0xC000FFFFFFFF)."…