Network Working Group                                      S. Waldbusser
Request for Comments: 1513                    Carnegie Mellon University
Updates: 1271                                             September 1993


      Token Ring Extensions to the Remote Network Monitoring MIB

Status of this Memo

  This RFC specifies an Internet standards track protocol for the
  Internet community, and requests discussion and suggestions for
  improvements.  Please refer to the current edition of the "Internet
  Official Protocol Standards" for the standardization state and status
  of this protocol.  Distribution of this memo is unlimited.

Abstract

  This memo defines extensions to the Remote Network Monitoring MIB for
  managing 802.5 Token Ring networks.

  The Remote Network Monitoring MIB, RFC 1271, 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.  RFC 1271
  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.

Table of Contents

  1. The Network Management Framework ......................    2
  2. Guidelines for implementing RFC1271 objects on a
     Token Ring network ....................................    3
  2.1 Host Group ...........................................    3
  2.2 Matrix Group .........................................    3
  2.3 Filter Group .........................................    3
  2.4 Other comments .......................................    4
  3. Overview of the RMON Token Ring Extensions MIB ........    4
  3.1 The Token Ring Statistics Groups .....................    4
  3.2 The Token Ring History Groups ........................    5
  3.3 The Token Ring Ring Station Group ....................    5



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  3.4 The Token Ring Ring Station Order Group ..............    5
  3.5 The Token Ring Ring Station Config Group .............    5
  3.6 The Token Ring Source Routing Group ..................    5
  4. Terminology ...........................................    5
  5. Definitions ...........................................    6
  5.1 The Token Ring Mac-Layer Statistics Group ............    6
  5.2 The Token Ring Promiscuous Statistics Group ..........   14
  5.3 The Token Ring Mac-Layer History Group ...............   19
  5.4 The Token Ring Promiscuous History Group .............   27
  5.5 The Token Ring Ring Station Group ....................   32
  5.6 The Token Ring Ring Station Order Group ..............   41
  5.7 The Token Ring Ring Station Config Group .............   43
  5.8 The Token Ring Source Routing Group ..................   47
  6. References ............................................   54
  7. Acknowledgments .......................................   55
  8. Security Considerations ...............................   55
  9. Author's Address ......................................   55

1.  The Network Management Framework

  The Internet-standard Network Management Framework consists of three
  components.  They are:

     STD 16, RFC 1155 [1] which defines the SMI, the mechanisms used
     for describing and naming objects for the purpose of management.
     STD 16, RFC 1212 [2] defines a more concise description mechanism,
     which is wholly consistent with the SMI.

     STD 17, RFC 1213 [3] which defines MIB-II, the core set of managed
     objects for the Internet suite of protocols.

     STD 15, 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 STD 16, 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.



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  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, STD 16, 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.

2.  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.

2.1.  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.  ACErrors
  will increment the error counter only for the nearest upstream
  neighbor of the station reporting the error.  LineErrors and
  BurstErrors will increment the error counters for the station
  reporting the error and its neighbor upstream neighbor.
  InternalErrors and AbortErrors will increment the error counter for
  the station reporting the error only.  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.

2.2.  Matrix Group

  Error counters are never incremented.

2.3.  Filter Group

  The following conditions make up the status bitmask for token ring
  networks:




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              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.

2.4.  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.

3.  Overview of the RMON Token Ring Extensions MIB

  The Remote Network Monitoring MIB, RFC 1271, 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.  RFC 1271
  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.

3.1.  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.





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3.2.  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.

3.3.  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.

3.4.  The Token Ring Ring Station Order Group

  The Token Ring Ring Station Order Group provides the order of the
  stations on monitored rings.

3.5.  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.

3.6.  The Token Ring Source Routing Group

  The Token Ring Source Routing Group contains utilization statistics
  derived from source routing information optionally present in token
  ring packets.

4.  Terminology

  The 802.5 specification [7] defines the term "good frame" as a frame
  that is bounded by a valid SD and ED, is an integral number of octets
  in length, is composed of only 0 and 1 bits between the SD and the
  ED, has the FF bits of the GC field equal to 00 or 01, has a valid
  FCS, and has a minimum of 18 octets between the SD and the ED.  This
  document will use the term "good frame" in the same manner.








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5.  Definitions

         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



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                     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
         }





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         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 }




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         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,



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                     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 }






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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         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 }





Waldbusser                                                     [Page 11]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         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 }






Waldbusser                                                     [Page 12]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         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 }







Waldbusser                                                     [Page 13]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         -- 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



Waldbusser                                                     [Page 14]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         }

         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"



Waldbusser                                                     [Page 15]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             ::= { 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



Waldbusser                                                     [Page 16]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     "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."



Waldbusser                                                     [Page 17]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             ::= { 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



Waldbusser                                                     [Page 18]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             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



Waldbusser                                                     [Page 19]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     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
         }




Waldbusser                                                     [Page 20]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     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 }




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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         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 }



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         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."



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             ::= { 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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     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,



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             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 }



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         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)."
             ::= { tokenRingPHistoryEntry 7 }

         tokenRingPHistoryDataMulticastPkts OBJECT-TYPE
             SYNTAX Counter
             ACCESS read-only
             STATUS mandatory



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             DESCRIPTION
                     "The total number of good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames received
                     during this sampling interval that were between
                     128 and 255 octets in length inclusive, excluding
                     framing bits but including FCS octets."
             ::= { tokenRingPHistoryEntry 11 }

         tokenRingPHistoryDataPkts256to511Octets 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 between



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                     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 good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames 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 good non-MAC frames received
                     during this sampling interval that were between
                     4096 and 8191 octets in length inclusive,
                     excluding framing bits but including FCS octets."
             ::= { tokenRingPHistoryEntry 16 }




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         tokenRingPHistoryDataPkts8192to18000Octets 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 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 good non-MAC frames received
                     during this sampling interval that were greater
                     than 18000 octets in length, excluding framing
                     bits but including FCS octets."
             ::= { tokenRingPHistoryEntry 18 }


         -- 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



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             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
         }

         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 }




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         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)
             }
             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 }




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         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
                     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 }

         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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     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,
             ringStationInBeaconErrors         Counter,
             ringStationOutBeaconErrors        Counter,
             ringStationInsertions             Counter
         }

         ringStationIfIndex 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]."
             ::= { 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."
             ::= { 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 }



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         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
             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."



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             ::= { 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
                     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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             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
             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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             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 }


         -- 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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     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
                     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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     "The physical address of this station."
             ::= { ringStationOrderEntry 3 }


         -- 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



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                     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]."
             ::= { 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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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         --  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
             DESCRIPTION
                     "The value of this object uniquely identifies the



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     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))
             ACCESS read-only
             STATUS mandatory
             DESCRIPTION
                     "The low-order 4 octets of the group address
                     recognized by this station."



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             ::= { 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 }


         -- The Token Ring 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,



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                 -- in to our net

             sourceRoutingStatsOutFrames                   Counter,
                 -- out from our net

             sourceRoutingStatsThroughFrames               Counter,
                 -- through our net

             sourceRoutingStatsAllRoutesBroadcastFrames    Counter,
             sourceRoutingStatsSingleRouteBroadcastFrames  Counter,
             sourceRoutingStatsInOctets                    Counter,
             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



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RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     "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
                     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 }




Waldbusser                                                     [Page 49]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


         sourceRoutingStatsSingleRouteBroadcastFrames OBJECT-TYPE
             SYNTAX Counter
             ACCESS read-only
             STATUS mandatory
             DESCRIPTION
                     "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



Waldbusser                                                     [Page 50]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             STATUS mandatory
             DESCRIPTION
                     "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
                     RIF field (or had a RIF field that only included
                     the local ring's number) 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



Waldbusser                                                     [Page 51]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


                     "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)."
             ::= { sourceRoutingStatsEntry 19 }

         sourceRoutingStats7HopsFrames OBJECT-TYPE



Waldbusser                                                     [Page 52]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             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
             DESCRIPTION
                     "The entity that configured this entry and is
                     therefore using the resources assigned to it."
             ::= { sourceRoutingStatsEntry 23 }

         sourceRoutingStatsStatus OBJECT-TYPE



Waldbusser                                                     [Page 53]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


             SYNTAX EntryStatus
             ACCESS read-write
             STATUS mandatory
             DESCRIPTION
                     "The status of this sourceRoutingStats entry."
             ::= { sourceRoutingStatsEntry 24 }

         END

6.  References

  [1]  Rose M., and K. McCloghrie, "Structure and Identification of
       Management Information for TCP/IP-based internets", STD 16, RFC
       1155, Performance Systems International, Hughes LAN Systems, May
       1990.

  [2]  Rose, M., and K. McCloghrie, Editors, "Concise MIB Definitions",
       STD 16, RFC 1212, Performance Systems International, Hughes LAN
       Systems, March 1991.

  [3]  McCloghrie K., and M. Rose, Editors, "Management Information
       Base for Network Management of TCP/IP-based internets", STD 17,
       RFC 1213, Performance Systems International, March 1991.

  [4]  Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
       Network Management Protocol", STD 15, RFC 1157, SNMP Research,
       Performance Systems International, Performance Systems
       International, MIT Laboratory for Computer Science, 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]  Waldbusser, S., "Remote Network Monitoring Management
       Information Base",  RFC 1271, CMU, November 1991.

  [7]  Token Ring Access Method and Physical Layer Specifications,
       Institute of Electrical and Electronic Engineers, IEEE Standard
       802.5-1989, 1989.











Waldbusser                                                     [Page 54]

RFC 1513           Token Ring Extensions to RMON MIB      September 1993


7.  Acknowledgments

  This document was produced by the Token Ring RMON MIB working group.

  In addition, the author gratefully acknowledges the comments of the
  following individuals:

        Andrew Bierman      Synoptics
        Steve Bostock       Novell
        Gary Ellis          Hewlett-Packard
        Mike Erlinger       Aerospace Corporation
        Robert Graham       Protools
        Stephen Grau        Novell
        Carl Hayssen        Ungermann-Bass
        Jeff Hughes         Hewlett-Packard
        Robin Iddon         AXON Networks
        Ken Kutzler         Synoptics
        To-Choi Lau         Novell
        Carl Madison        Startek
        Keith McCloghrie    Hughes Lan Systems
        Rohit Mital         Protools
        Keith Schomburg     IBM
        Marshall Rose       Dover Beach Consulting
        Mark Therieau       Microcom
        Mark van der Pol    Hughes Lan Systems
        Brian Wyld          Consultant

8.  Security Considerations

  Security issues are not discussed in this memo.

9.  Author's Address

  Steven Waldbusser
  Carnegie Mellon University
  4910 Forbes Ave.
  Pittsburgh, PA 15213

  Phone: (412) 268-6628
  EMail: [email protected]











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