Hub MIB Working Group J. Johnson INTERNET DRAFT cisco Systems, Inc. November 1996 Definitions of Managed Objects for the Ethernet-like Interface Types Status of this Memo This document is an Internet-Draft. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet- Drafts as reference material or to cite them other than as ``work in progress.'' To learn the current status of any Internet-Draft, please check the ``1id-abstracts.txt'' listing contained in the Internet- Drafts Shadow Directories on ftp.is.co.za (Africa), nic.nordu.net (Europe), munnari.oz.au (Pacific Rim), ds.internic.net (US East Coast), or ftp.isi.edu (US West Coast). Abstract This memo is an extension to the SNMP MIB. It specifies an IAB standards track protocol for the Internet community, and requests discussion and suggestions for improvements. The origin of this memo is from RFC 1650 "Definitions of Managed Objects for the Ethernet-like Interface Types using SMIv2." This memo extends that specification by including management information useful for the management of 100-BaseT ethernet interfaces. Distribution of this memo is unlimited. Please forward comments to hubmib@hprnd.rose.hp.com. Expires May 1997 [Page 1] INTERNET DRAFT Ethernet-Like MIB November 1996 1. Introduction This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it defines objects for managing ethernet-like interfaces. This memo also includes a MIB module. This MIB module extends the list of managed objects specified in the earlier version of this MIB: RFC1650 [11]. 2. The SNMP Network Management Framework The SNMP Network Management Framework consists of several components. For the purpose of this specification, the applicable components of the Framework are the SMI and related documents [2, 3, 4], which define the mechanisms used for describing and naming objects for the purpose of management. The Framework permits new objects to be defined for the purpose of experimentation and evaluation. 2.1. Object Definitions Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the subset of Abstract Syntax Notation One (ASN.1) [1] defined in the SMI [2]. In particular, each object object type is named by an OBJECT IDENTIFIER, an administratively assigned name. 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 descriptor, to refer to the object type. 3. Change Log This section enumerates changes made to RFC 1650 to produce this document. (1) The MODULE-IDENTITY has been updated to reflect the changes in the MIB. (2) A new object, dot3StatsSymbolErrors, has been added. (3) The definition of the object dot3StatsIndex has been converted to use the SMIv2 OBJECT-TYPE macro. Expires May 1997 [Page 2] INTERNET DRAFT Ethernet-Like MIB November 1996 (4) A new conformance group, etherStats100MbsGroup, has been added. (5) A new compliance statement, ether100MbsCompliance, has been added. (6) The Acknowledgements were extended to provide a more complete history of the origin of this document. 4. Overview Instances of these object types represent attributes of an interface to an ethernet-like communications medium. At present, ethernet-like media are identified by the following values of the ifType object in the Interfaces MIB [12]: ethernet-csmacd(6) iso88023-csmacd(7) starLan(11) fastEther(62) fastEtherFX(69) The definitions presented here are based on the IEEE 802.3 Layer Management Specification [5], as originally interpreted by Frank Kastenholz then of Interlan in [7]. Implementors of these MIB objects should note that the IEEE document explicitly describes (in the form of Pascal pseudocode) when, where, and how various MAC attributes are measured. The IEEE document also describes the effects of MAC actions that may be invoked by manipulating instances of the MIB objects defined here. To the extent that some of the attributes defined in [5] are represented by previously defined objects in the Internet-standard MIB or in the Interfaces Group Evolution MIB [12], such attributes are not redundantly represented by objects defined in this memo. Among the attributes represented by objects defined in other memos are the number of octets transmitted or received on a particular interface, the number of frames transmitted or received on a particular interface, the promiscuous status of an interface, the MAC address of an interface, and multicast information associated with an interface. 4.1. Relation to RFC 1213 This section applies only when this MIB is used in conjunction with the "old" (i.e., pre-RFC 1573) interface group. Expires May 1997 [Page 3] INTERNET DRAFT Ethernet-Like MIB November 1996 The relationship between an ethernet-like interface and an interface in the context of the Internet-standard MIB is one-to-one. As such, the value of an ifIndex object instance can be directly used to identify corresponding instances of the objects defined herein. For agents which implement the (now deprecated) ifSpecific object, an instance of that object that is associated with an ethernet-like interface has the OBJECT IDENTIFIER value: dot3 OBJECT IDENTIFER ::= { transmission 7 } 4.2. Relation to RFC 1573 RFC 1573, the Interface MIB Evolution, requires that any MIB which is an adjunct of the Interface MIB, clarify specific areas within the Interface MIB. These areas were intentionally left vague in RFC 1573 to avoid over constraining the MIB, thereby precluding management of certain media-types. Section 3.3 of RFC 1573 enumerates several areas which a media- specific MIB must clarify. Each of these areas is addressed in a following subsection. The implementor is referred to RFC 1573 in order to understand the general intent of these areas. 4.2.1. Layering Model This MIB does not provide for layering. There are no sublayers. EDITOR'S NOTE: One could foresee the development of an 802.2 and enet-transceiver MIB. They could be higher and lower sublayers, respectively. All that THIS document should do is allude to the possibilities and urge the implementor to be aware of the possibility and that they may have requirements which supersede the requirements in this document. 4.2.2. Virtual Circuits This medium does not support virtual circuits and this area is not applicable to this MIB. 4.2.3. ifTestTable Expires May 1997 [Page 4] INTERNET DRAFT Ethernet-Like MIB November 1996 This MIB defines two tests for media which are instrumented with this MIB; TDR and Loopback. Implementation of these tests is not required. Many common interface chips do not support one or both of these tests. These two tests are provided as a convenience, allowing a common method to invoke the test. Standard MIBs do not include objects in which to return the results of the TDR test. Any needed objects MUST be provided in the vendor specific MIB. 4.2.4. ifRcvAddressTable This table contains all IEEE 802.3 addresses, unicast, multicast, and broadcast, for which this interface will receive packets and forward them up to a higher layer entity for local consumption. The format of the address, contained in ifRcvAddressAddress, is the same as for ifPhysAddress. In the event that the interface is part of a MAC bridge, this table does not include unicast addresses which are accepted for possible forwarding out some other port. This table is explicitly not intended to provide a bridge address filtering mechanism. 4.2.5. ifPhysAddress This object contains the IEEE 802.3 address which is placed in the source-address field of any Ethernet, Starlan, or IEEE 802.3 frames that originate at this interface. Usually this will be kept in ROM on the interface hardware. Some systems may set this address via software. In a system where there are several such addresses the designer has a tougher choice. The address chosen should be the one most likely to be of use to network management (e.g. the address placed in ARP responses for systems which are primarily IP systems). If the designer truly can not chose, use of the factory- provided ROM address is suggested. If the address can not be determined, an octet string of zero length should be returned. The address is stored in binary in this object. The address is stored in "canonical" bit order, that is, the Group Bit is positioned as the low-order bit of the first octet. Thus, the first byte of a multicast address would have the bit 0x01 set. Expires May 1997 [Page 5] INTERNET DRAFT Ethernet-Like MIB November 1996 4.2.6. ifType This MIB applies to interfaces which have any of the following ifType values: ethernet-csmacd(6) iso88023-csmacd(7) starLan(11) fastEther(62) fastEtherFX(69) Interfaces with any of the first three ifType values map to the EtherLike-MIB in the same manner. The EtherLike-MIB etherCompliance compliance statement applies equally to all three types; there are no implementation differences. Similarly, interfaces with either of the last two ifType values map to the EtherLike-MIB in the same manner. The EtherLike-MIB ether100MbsCompliance compliance statement applies equally to both types; there are no implementation differences. Expires May 1997 [Page 6] INTERNET DRAFT Ethernet-Like MIB November 1996 5. Definitions EtherLike-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, Counter32, mib-2 FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF ifIndex, InterfaceIndex FROM IF-MIB; etherMIB MODULE-IDENTITY LAST-UPDATED "9606052300Z" ORGANIZATION "IETF 802.3 Hub MIB Working Group" CONTACT-INFO "WG E-mail: hubmib@hprnd.rose.hp.com Editor: Jeffrey Johnson Postal: cisco Systems, Inc. 170 W.Tasman Drive San Jose, CA, 94015 USA Tel: +1 408 526 7789 E-Mail: jjohnson@cisco.com" DESCRIPTION "The MIB module to describe generic objects for Ethernet-like network interfaces. This MIB is an updated version of the Ethernet-like MIB in RFC 1650." REVISION "9606052300Z" DESCRIPTION "Updated to include support for 100 Mb/sec interfaces." ::= { mib-2 35 } etherMIBObjects OBJECT IDENTIFIER ::= { etherMIB 1 } dot3 OBJECT IDENTIFIER ::= { transmission 7 } -- the Ethernet-like Statistics group dot3StatsTable OBJECT-TYPE SYNTAX SEQUENCE OF Dot3StatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Statistics for a collection of ethernet-like interfaces attached to a particular system." ::= { dot3 2 } Expires May 1997 [Page 7] INTERNET DRAFT Ethernet-Like MIB November 1996 dot3StatsEntry OBJECT-TYPE SYNTAX Dot3StatsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Statistics for a particular interface to an ethernet-like medium." INDEX { dot3StatsIndex } ::= { dot3StatsTable 1 } Dot3StatsEntry ::= SEQUENCE { dot3StatsIndex InterfaceIndex, dot3StatsAlignmentErrors Counter32, dot3StatsFCSErrors Counter32, dot3StatsSingleCollisionFrames Counter32, dot3StatsMultipleCollisionFrames Counter32, dot3StatsSQETestErrors Counter32, dot3StatsDeferredTransmissions Counter32, dot3StatsLateCollisions Counter32, dot3StatsExcessiveCollisions Counter32, dot3StatsInternalMacTransmitErrors Counter32, dot3StatsCarrierSenseErrors Counter32, dot3StatsFrameTooLongs Counter32, dot3StatsInternalMacReceiveErrors Counter32, dot3StatsEtherChipSet OBJECT IDENTIFIER, dot3StatsSymbolErrors Counter32 } dot3StatsIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS read-only STATUS current DESCRIPTION "An index value that uniquely identifies an interface to an ethernet-like medium. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex." ::= { dot3StatsEntry 1 } dot3StatsAlignmentErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of frames received on a particular interface that are not an integral number of octets in length and do not pass the FCS check. Expires May 1997 [Page 8] INTERNET DRAFT Ethernet-Like MIB November 1996 The count represented by an instance of this object is incremented when the alignmentError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions obtain are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 2 } dot3StatsFCSErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of frames received on a particular interface that are an integral number of octets in length but do not pass the FCS check. The count represented by an instance of this object is incremented when the frameCheckError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions obtain are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 3 } dot3StatsSingleCollisionFrames OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of successfully transmitted frames on a particular interface for which transmission is inhibited by exactly one collision. A frame that is counted by an instance of this object is also counted by the corresponding instance of either the ifOutUcastPkts, ifOutMulticastPkts, or ifOutBroadcastPkts, and is not counted by the corresponding instance of the dot3StatsMultipleCollisionFrames Expires May 1997 [Page 9] INTERNET DRAFT Ethernet-Like MIB November 1996 object." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 4 } dot3StatsMultipleCollisionFrames OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of successfully transmitted frames on a particular interface for which transmission is inhibited by more than one collision. A frame that is counted by an instance of this object is also counted by the corresponding instance of either the ifOutUcastPkts, ifOutMulticastPkts, or ifOutBroadcastPkts, and is not counted by the corresponding instance of the dot3StatsSingleCollisionFrames object." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 5 } dot3StatsSQETestErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of times that the SQE TEST ERROR message is generated by the PLS sublayer for a particular interface. The SQE TEST ERROR message is defined in section 7.2.2.2.4 of ANSI/IEEE 802.3-1985 and its generation is described in section 7.2.4.6 of the same document." REFERENCE "ANSI/IEEE Std 802.3-1985 Carrier Sense Multiple Access with Collision Detection Access Method and Physical Layer Specifications" ::= { dot3StatsEntry 6 } dot3StatsDeferredTransmissions OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only Expires May 1997 [Page 10] INTERNET DRAFT Ethernet-Like MIB November 1996 STATUS current DESCRIPTION "A count of frames for which the first transmission attempt on a particular interface is delayed because the medium is busy. The count represented by an instance of this object does not include frames involved in collisions." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 7 } dot3StatsLateCollisions OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times that a collision is detected on a particular interface later than 512 bit-times into the transmission of a packet. Five hundred and twelve bit-times corresponds to 51.2 microseconds on a 10 Mbit/s system. A (late) collision included in a count represented by an instance of this object is also considered as a (generic) collision for purposes of other collision-related statistics." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 8 } dot3StatsExcessiveCollisions OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of frames for which transmission on a particular interface fails due to excessive collisions." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 9 } dot3StatsInternalMacTransmitErrors OBJECT-TYPE SYNTAX Counter32 Expires May 1997 [Page 11] INTERNET DRAFT Ethernet-Like MIB November 1996 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of frames for which transmission on a particular interface fails due to an internal MAC sublayer transmit error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the dot3StatsLateCollisions object, the dot3StatsExcessiveCollisions object, or the dot3StatsCarrierSenseErrors object. The precise meaning of the count represented by an instance of this object is implementation- specific. In particular, an instance of this object may represent a count of transmission errors on a particular interface that are not otherwise counted." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 10 } dot3StatsCarrierSenseErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame on a particular interface. The count represented by an instance of this object is incremented at most once per transmission attempt, even if the carrier sense condition fluctuates during a transmission attempt." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 11 } -- { dot3StatsEntry 12 } is not assigned dot3StatsFrameTooLongs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION Expires May 1997 [Page 12] INTERNET DRAFT Ethernet-Like MIB November 1996 "A count of frames received on a particular interface that exceed the maximum permitted frame size. The count represented by an instance of this object is incremented when the frameTooLong status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions obtain are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 13 } -- { dot3StatsEntry 14 } is not assigned -- { dot3StatsEntry 15 } is not assigned dot3StatsInternalMacReceiveErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of frames for which reception on a particular interface fails due to an internal MAC sublayer receive error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the dot3StatsFrameTooLongs object, the dot3StatsAlignmentErrors object, or the dot3StatsFCSErrors object. The precise meaning of the count represented by an instance of this object is implementation- specific. In particular, an instance of this object may represent a count of receive errors on a particular interface that are not otherwise counted." REFERENCE "IEEE 802.3 Layer Management" ::= { dot3StatsEntry 16 } dot3StatsEtherChipSet OBJECT-TYPE SYNTAX OBJECT IDENTIFIER MAX-ACCESS read-only STATUS current DESCRIPTION Expires May 1997 [Page 13] INTERNET DRAFT Ethernet-Like MIB November 1996 "This object contains an OBJECT IDENTIFIER which identifies the chipset used to realize the interface. Ethernet-like interfaces are typically built out of several different chips. The MIB implementor is presented with a decision of which chip to identify via this object. The implementor should identify the chip which is usually called the Medium Access Control chip. If no such chip is easily identifiable, the implementor should identify the chip which actually gathers the transmit and receive statistics and error indications. This would allow a manager station to correlate the statistics and the chip generating them, giving it the ability to take into account any known anomalies in the chip." ::= { dot3StatsEntry 17 } dot3StatsSymbolErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times there was an invalid data symbol when a valid carrier was present on a particular interface. The count represented by an instance of this object is incremented at most once per carrier event, even if multiple symbol errors occur during the carrier event." REFERENCE "IEEE 802.3u-1995 10 & 100 Mb/s Management" ::= { dot3StatsEntry 18 } -- the Ethernet-like Collision Statistics group -- Implementation of this group is optional; it is appropriate -- for all systems which have the necessary metering dot3CollTable OBJECT-TYPE SYNTAX SEQUENCE OF Dot3CollEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION Expires May 1997 [Page 14] INTERNET DRAFT Ethernet-Like MIB November 1996 "A collection of collision histograms for a particular set of interfaces." ::= { dot3 5 } dot3CollEntry OBJECT-TYPE SYNTAX Dot3CollEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A cell in the histogram of per-frame collisions for a particular interface. An instance of this object represents the frequency of individual MAC frames for which the transmission (successful or otherwise) on a particular interface is accompanied by a particular number of media collisions." INDEX { ifIndex, dot3CollCount } ::= { dot3CollTable 1 } Dot3CollEntry ::= SEQUENCE { dot3CollCount INTEGER, dot3CollFrequencies Counter32 } -- { dot3CollEntry 1 } is no longer in use dot3CollCount OBJECT-TYPE SYNTAX INTEGER (1..16) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The number of per-frame media collisions for which a particular collision histogram cell represents the frequency on a particular interface." ::= { dot3CollEntry 2 } dot3CollFrequencies OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "A count of individual MAC frames for which the transmission (successful or otherwise) on a particular interface occurs after the frame has experienced exactly the number Expires May 1997 [Page 15] INTERNET DRAFT Ethernet-Like MIB November 1996 of collisions in the associated dot3CollCount object. For example, a frame which is transmitted on interface 77 after experiencing exactly 4 collisions would be indicated by incrementing only dot3CollFrequencies.77.4. No other instance of dot3CollFrequencies would be incremented in this example." ::= { dot3CollEntry 3 } -- 802.3 Tests dot3Tests OBJECT IDENTIFIER ::= { dot3 6 } dot3Errors OBJECT IDENTIFIER ::= { dot3 7 } -- TDR Test -- The Time-Domain Reflectometry (TDR) test is specific -- to ethernet-like interfaces with the exception of -- 10BaseT and 10BaseF. The TDR value may be useful -- in determining the approximate distance to a cable fault. -- It is advisable to repeat this test to check for a -- consistent resulting TDR value, to verify that there -- is a fault. dot3TestTdr OBJECT IDENTIFIER ::= { dot3Tests 1 } -- A TDR test returns as its result the time interval, -- measured in 10 MHz ticks or 100 nsec units, between -- the start of TDR test transmission and the subsequent -- detection of a collision or deassertion of carrier. On -- successful completion of a TDR test, the result is -- stored as the value of the appropriate instance of the -- MIB object dot3TestTdrValue, and the OBJECT IDENTIFIER -- of that instance is stored in the corresponding instance -- of ifExtnsTestCode (thereby indicating where the -- result has been stored). -- Loopback Test -- Another test is the full-duplex loopback test. -- This test configures the MAC chip and executes -- an internal loopback test of memory, data paths, -- and the MAC chip logic. This loopback test can Expires May 1997 [Page 16] INTERNET DRAFT Ethernet-Like MIB November 1996 -- only be executed if the interface is offline. -- Once the test has completed, the MAC chip should -- be reinitialized for network operation, but it -- should remain offline. dot3TestLoopBack OBJECT IDENTIFIER ::= { dot3Tests 2 } -- If an error occurs during a test, the object -- ifTestResult (defined in RFC1573) will be set -- to failed(7). The following two OBJECT -- IDENTIFIERs may be used to provided more -- information as values for ifTestCode. -- couldn't initialize MAC chip for test dot3ErrorInitError OBJECT IDENTIFIER ::= { dot3Errors 1 } -- expected data not received (or not -- received correctly) in loopback test dot3ErrorLoopbackError OBJECT IDENTIFIER ::= { dot3Errors 2 } -- RFC1573 does away with the interface chipset object. -- The following OBJECT IDENTIFIER definitions are -- retained for purposes of backwards compatibility -- with pre-RFC1573 systems. -- 802.3 Hardware Chipsets -- The object ifExtnsChipSet is provided in RFC1229 to -- identify the MAC hardware used to communicate on an -- interface. The following hardware chipsets are -- provided for 802.3: dot3ChipSets OBJECT IDENTIFIER ::= { dot3 8 } dot3ChipSetAMD OBJECT IDENTIFIER ::= { dot3ChipSets 1 } dot3ChipSetAMD7990 OBJECT IDENTIFIER ::= { dot3ChipSetAMD 1 } dot3ChipSetAMD79900 OBJECT IDENTIFIER ::= { dot3ChipSetAMD 2 } dot3ChipSetAMD79C940 OBJECT IDENTIFIER ::= { dot3ChipSetAMD 3 } dot3ChipSetIntel OBJECT IDENTIFIER ::= { dot3ChipSets 2 } dot3ChipSetIntel82586 OBJECT IDENTIFIER ::= { dot3ChipSetIntel 1 } dot3ChipSetIntel82596 OBJECT IDENTIFIER ::= { dot3ChipSetIntel 2 } dot3ChipSetSeeq OBJECT IDENTIFIER ::= { dot3ChipSets 3 } dot3ChipSetSeeq8003 OBJECT IDENTIFIER ::= { dot3ChipSetSeeq 1 } dot3ChipSetNational OBJECT IDENTIFIER ::= { dot3ChipSets 4 } dot3ChipSetNational8390 OBJECT IDENTIFIER ::= { dot3ChipSetNational 1 } dot3ChipSetNationalSonic OBJECT IDENTIFIER ::= Expires May 1997 [Page 17] INTERNET DRAFT Ethernet-Like MIB November 1996 { dot3ChipSetNational 2 } dot3ChipSetFujitsu OBJECT IDENTIFIER ::= { dot3ChipSets 5 } dot3ChipSetFujitsu86950 OBJECT IDENTIFIER ::= { dot3ChipSetFujitsu 1 } dot3ChipSetDigital OBJECT IDENTIFIER ::= { dot3ChipSets 6 } dot3ChipSetDigitalDC21040 OBJECT IDENTIFIER ::= { dot3ChipSetDigital 1 } -- For those chipsets not represented above, OBJECT IDENTIFIER -- assignment is required in other documentation, e.g., assignment -- within that part of the registration tree delegated to -- individual enterprises (see RFC1155). -- conformance information etherConformance OBJECT IDENTIFIER ::= { etherMIB 2 } etherGroups OBJECT IDENTIFIER ::= { etherConformance 1 } etherCompliances OBJECT IDENTIFIER ::= { etherConformance 2 } -- compliance statements etherCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for SNMPv2 entities which have ethernet-like network interfaces." MODULE -- this module MANDATORY-GROUPS { etherStatsGroup } GROUP etherCollisionTableGroup DESCRIPTION "This group is optional. It is appropriate for all systems which have the necessary metering. Implementation in such systems is highly recommended." ::= { etherCompliances 1 } ether100MbsCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for SNMPv2 entities which have 100 Mb/sec ethernet-like network interfaces." Expires May 1997 [Page 18] INTERNET DRAFT Ethernet-Like MIB November 1996 MODULE -- this module MANDATORY-GROUPS { etherStats100MbsGroup } GROUP etherCollisionTableGroup DESCRIPTION "This group is optional. It is appropriate for all systems which have the necessary metering. Implementation in such systems is highly recommended." ::= { etherCompliances 2 } -- units of conformance etherStatsGroup OBJECT-GROUP OBJECTS { dot3StatsIndex, dot3StatsAlignmentErrors, dot3StatsFCSErrors, dot3StatsSingleCollisionFrames, dot3StatsMultipleCollisionFrames, dot3StatsSQETestErrors, dot3StatsDeferredTransmissions, dot3StatsLateCollisions, dot3StatsExcessiveCollisions, dot3StatsInternalMacTransmitErrors, dot3StatsCarrierSenseErrors, dot3StatsFrameTooLongs, dot3StatsInternalMacReceiveErrors, dot3StatsEtherChipSet} STATUS current DESCRIPTION "A collection of objects providing information applicable to all ethernet-like network interfaces." ::= { etherGroups 1 } etherCollisionTableGroup OBJECT-GROUP OBJECTS { dot3CollCount, dot3CollFrequencies } STATUS current DESCRIPTION "A collection of objects providing a histogram of packets successfully transmitted after experiencing exactly N collisions." ::= { etherGroups 2 } etherStats100MbsGroup OBJECT-GROUP OBJECTS { dot3StatsIndex, dot3StatsAlignmentErrors, dot3StatsFCSErrors, dot3StatsSingleCollisionFrames, Expires May 1997 [Page 19] INTERNET DRAFT Ethernet-Like MIB November 1996 dot3StatsMultipleCollisionFrames, dot3StatsDeferredTransmissions, dot3StatsLateCollisions, dot3StatsExcessiveCollisions, dot3StatsInternalMacTransmitErrors, dot3StatsCarrierSenseErrors, dot3StatsFrameTooLongs, dot3StatsInternalMacReceiveErrors, dot3StatsEtherChipSet, dot3StatsSymbolErrors} STATUS current DESCRIPTION "A collection of objects providing information applicable to 100 Mb/sec ethernet-like network interfaces." ::= { etherGroups 3 } END 6. Acknowledgements This document was produced by the 802.3 Hub MIB Working Group. This document is almost completely based on both the Standard Ethernet MIB, RFC 1623 [10], and the Proposed Standard Ethernet MIB using the SNMPv2 SMI, RFC 1650 [11], both of which were edited by Frank Kastenholz of FTP Software and produced by the Ethernet MIB Working Group. This document extends those documents by providing support for 100 Mb/sec ethernet interfaces as outlined in [6]. RFC 1623 and RFC 1650, in turn, are based on the Draft Standard Ethernet MIB, RFC 1398 [9], also edited by Frank Kastenholz and produced by the Ethernet MIB Working Group. RFC 1398, in turn, is based on the Proposed Standard Ethernet MIB, RFC 1284 [8], which was edited by John Cook of Chipcom and produced by the Transmission MIB Working Group. The Ethernet MIB Working Group gathered implementation experience of the variables specified in RFC 1284 and used that information to develop this revised MIB. RFC 1284, in turn, is based on a document written by Frank Kastenholz, then of Interlan, entitled IEEE 802.3 Layer Management Draft M compatible MIB for TCP/IP Networks [7]. This document has been modestly reworked, initially by the SNMP Working Group, and then by the Transmission Working Group, to reflect the current conventions for defining objects for MIB interfaces. James Davin, of the MIT Laboratory Expires May 1997 [Page 20] INTERNET DRAFT Ethernet-Like MIB November 1996 for Computer Science, and Keith McCloghrie of Hughes LAN Systems, contributed to later drafts of this memo. Marshall Rose of Performance Systems International, Inc. converted the document into its current concise format. Anil Rijsinghani of DEC contributed text that more adequately describes the TDR test. Thanks to Frank Kastenholz of Interlan and Louis Steinberg of IBM for their experimentation. 7. References [1] Information processing systems - Open Systems Interconnection - Specification of Abstract Syntax Notation One (ASN.1), International Organization for Standardization, International Standard 8824, December 1987. [2] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure of Management Information for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1902, January 1996. [3] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual Conventions for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1903, January 1996. [4] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Conformance Statements for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1904, January 1996. [5] IEEE, IEEE 802.3 Layer Management, November 1988. [6] IEEE, IEEE 802.3u-1995, "10 & 100 Mb/s Management," Section 30, Supplement to IEEE Std 802.3, October 26, 1995. [7] Kastenholz, F., "IEEE 802.3 Layer Management Draft compatible MIB for TCP/IP Networks", electronic mail message to mib- wg@nnsc.nsf.net, 9 June 1989. [8] Cook, J., "Definitions of Managed Objects for Ethernet-Like Interface Types", RFC 1284, Chipcom Corporation, December 1991. [9] Kastenholz, F., "Definitions of Managed Objects for the Ethernet-like Interface Types", RFC 1398, FTP Software, Inc., January 1993. [10] Kastenholz, F., "Definitions of Managed Objects for the Ethernet-like Interface Types", RFC 1623, FTP Software, Inc., Expires May 1997 [Page 21] INTERNET DRAFT Ethernet-Like MIB November 1996 May 1994. [11] Kastenholz, F., "Definitions of Managed Objects for the Ethernet-like Interface Types using SMIv2", RFC 1650, FTP Software, Inc., August 1994. [12] McCloghrie, K., and F. Kastenholz, "Evolution of the Interfaces Group of MIB-II", RFC 1573, Hughes LAN Systems, FTP Software, January 1994. 8. Security Considerations Security issues are not discussed in this memo. 9. Author's Addresses Jeffrey Johnson cisco Systems, Inc. 170 W.Tasman Drive San Jose, CA, 94015, USA Phone: +1-408-526-7789 EMail: jjohnson@cisco.com Expires May 1997 [Page 22]