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 Waldbusser [Page 1] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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. Waldbusser [Page 2] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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: Waldbusser [Page 3] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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. Waldbusser [Page 4] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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. Waldbusser [Page 5] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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 Waldbusser [Page 6] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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 } Waldbusser [Page 7] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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 } Waldbusser [Page 8] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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, Waldbusser [Page 9] RFC 1513 Token Ring Extensions to RMON MIB September 1993 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 } Waldbusser [Page 10] 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 Waldbusser [Page 21] 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