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."