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Versions: 00 01 02 03 RFC 3636

Ethernet Interfaces and Hub MIB Working Group    Editor of this version:
INTERNET DRAFT                                                  J. Flick
                                                 Hewlett-Packard Company

                                           Editors of previous versions:
                                                                A. Smith
                                                        Allegro Networks
                                                                J. Flick
                                                 Hewlett-Packard Company
                                                             K. de Graaf
                                                          Argon Networks
                                                            D. Romascanu
                                                              Avaya Inc.
                                                             D. McMaster
                                                     Cisco Systems, Inc.
                                                           K. McCloghrie
                                                     Cisco Systems, Inc.
                                                              S. Roberts
                                                Farallon Computing, Inc.
                                                                May 2002

                   Definitions of Managed Objects for
               IEEE 802.3 Medium Attachment Units (MAUs)

                 <draft-ietf-hubmib-mau-mib-v3-02.txt>


Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026.

   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."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt

   To view the list Internet-Draft Shadow Directories, see
   http://www.ietf.org/shadow.html.




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Copyright Notice

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   This memo obsoletes RFC 2668, ''Definitions of Managed Objects for
   IEEE 802.3 Medium Attachment Units (MAUs)''.  This memo extends that
   specification by including management information useful for the
   management of 10 gigabit per second (Gb/s) MAUs.  This memo also
   obsoletes RFC 1515, ''Definitions of Managed Objects for IEEE 802.3
   Medium Attachment Units (MAUs)''.

   Ethernet technology, as defined by the 802.3 Working Group of the
   IEEE, continues to evolve, with scalable increases in speed, new
   types of cabling and interfaces, and new features.  This evolution
   may require changes in the managed objects in order to reflect this
   new functionality.  This document, as with other documents issued by
   this working group, reflects a certain stage in the evolution of
   Ethernet technology.  In the future, this document might be revised,
   or new documents might be issued by the Ethernet Interfaces and Hub
   MIB Working Group, in order to reflect the evolution of Ethernet
   technology.

   Distribution of this memo is unlimited.  Please forward comments to
   hubmib@ietf.org.


Table of Contents

   1.  Introduction ...............................................    3
   2.  The SNMP Management Framework ..............................    3
   3.  Overview ...................................................    4
   3.1.  Relationship to RFC 2668 .................................    4
   3.2.  Relationship to RFC 2239 .................................    5
   3.3.  Relationship to RFC 1515 .................................    5
   3.5.  Relationship to Other MIBs ...............................    5
   3.5.1.  Relationship to the Interfaces MIB .....................    5
   3.5.2.  Relationship to the 802.3 Repeater MIB .................    6
   3.6.  Management of Internal MAUs ..............................    6
   3.7.  Mapping of IEEE 802.3 Managed Objects ....................    7
   4.  Definitions ................................................    8
   5.  Intellectual Property ......................................   55
   6.  Acknowledgements ...........................................   56
   7.  References .................................................   56
   8.  Security Considerations ....................................   59



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   9.  Authors' Addresses .........................................   59
   A.  Change Log .................................................   59
   A.1.  Changes since RFC 2668 ...................................   59
   A.2.  Changes between RFC 2239 and RFC 2668 ....................   60
   B.  Full Copyright Statement ...................................   61


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 IEEE 802.3 Medium
   Attachment Units (MAUs).

   This memo also includes a MIB module.  This MIB module extends the
   list of managed objects specified in the earlier version of this MIB:
   RFC 2668 [RFC2668].

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].


2.  The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

    o   An overall architecture, described in RFC 2571 [RFC2571].

    o   Mechanisms for describing and naming objects and events for the
        purpose of management. The first version of this Structure of
        Management Information (SMI) is called SMIv1 and described in
        STD 16, RFC 1155 [RFC1155], STD 16, RFC 1212 [RFC1212] and RFC
        1215 [RFC1215].  The second version, called SMIv2, is described
        in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and
        STD 58, RFC 2580 [RFC2580].

    o   Message protocols for transferring management information. The
        first version of the SNMP message protocol is called SNMPv1 and
        described in STD 15, RFC 1157 [RFC1157]. A second version of
        the SNMP message protocol, which is not an Internet standards
        track protocol, is called SNMPv2c and described in RFC 1901
        [RFC1901] and RFC 1906 [RFC1906]. The third version of the
        message protocol is called SNMPv3 and described in RFC 1906
        [RFC1906], RFC 2572 [RFC2572] and RFC 2574 [RFC2574].

    o   Protocol operations for accessing management information. The



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        first set of protocol operations and associated PDU formats is
        described in STD 15, RFC 1157 [RFC1157].  A second set of
        protocol operations and associated PDU formats is described in
        RFC 1905 [RFC1905].

    o   A set of fundamental applications described in RFC 2573
        [RFC2573] and the view-based access control mechanism described
        in RFC 2575 [RFC2575].

   A more detailed introduction to the current SNMP Management Framework
   can be found in RFC 2570 [RFC2570].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the mechanisms defined in the SMI.

   This memo specifies a MIB module that is compliant to the SMIv2. A
   MIB conforming to the SMIv1 can be produced through the appropriate
   translations. The resulting translated MIB must be semantically
   equivalent, except where objects or events are omitted because no
   translation is possible (use of Counter64). Some machine readable
   information in SMIv2 will be converted into textual descriptions in
   SMIv1 during the translation process. However, this loss of machine
   readable information is not considered to change the semantics of the
   MIB.


3.  Overview

   Instances of these object types represent attributes of an IEEE 802.3
   MAU.  Several types of MAUs are defined in the IEEE 802.3 CSMA/CD
   standard [IEEE802.3].  These MAUs may be connected to IEEE 802.3
   repeaters or to 802.3 (Ethernet-like) interfaces. For convenience
   this document refers to these devices as "repeater MAUs" and
   "interface MAUs."

   The definitions presented here are based on Section 30.5, "Layer
   Management for 10 Mb/s, 100 Mb/s, 1000 Mb/s and 10 Gb/s Medium
   Attachment Units (MAUs)", Section 30.6, "Management for link Auto-
   Negotiation", and Annex 30A, "GDMO Specifications for 802.3 managed
   object classes" of IEEE Std. 802.3, 2000 edition [IEEE802.3], as
   amended by IEEE Draft P802.3ae/D4.3 [P802.3ae].  That specification
   includes definitions for 10 Mb/s, 100 Mb/s, 1000 Mb/s and 10 Gb/s
   devices. This specification is intended to serve the same purpose: to
   provide for management of all types of Ethernet/802.3 MAUs.

3.1.  Relationship to RFC 2668




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   This MIB is intended to be a superset of that defined by RFC 2668
   [RFC2668], which will go to historic status.  This MIB includes all
   of the objects contained in that MIB, with new and updated
   definitions which provide support for additional capabilities.
   Implementors are encouraged to support all applicable conformance
   groups in order to make the best use of the new functionality
   provided by this MIB.  The new and updated definitions provide
   management support for 10 Gb/s devices.

3.2.  Relationship to RFC 2239

   RFC 2668 was a replacement for RFC 2239 [RFC2239], which is now
   historic.  RFC 2668 defined a superset of that defined by RFC 2239
   [RFC2239], which contained all of the objects defined in RFC 2239,
   plus several new ones which provide additional capabilities.  The new
   objects provided management support for:

   o    management of 1000 Mb/s devices

   o    management of PAUSE negotiation

   o    management of remote fault status

3.3.  Relationship to RFC 1515

   RFC 2239 was a replacement for RFC 1515 [RFC1515], which is now
   historic.  RFC 2239 defined a superset of RFC 1515 which contained
   all of the objects defined in RFC 1515, plus several new ones which
   provided additional capabilities.  The new objects in RFC 2239
   provided management support for:

   o    management of 100 Mb/s devices

   o    auto-negotiation on interface MAUs

   o    jack management


3.5.  Relationship to Other MIBs

   It is assumed that an agent implementing this MIB will also implement
   (at least) the 'system' group defined in the SNMPv2 MIB [RFC1907].
   The following sections identify other MIBs that such an agent should
   implement.

3.5.1.  Relationship to the Interfaces MIB.

   The sections of this document that define interface MAU-related



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   objects specify an extension to the Interfaces MIB [RFC2863].  An
   agent implementing these interface-MAU related objects MUST also
   implement the relevant groups of Interface MIB.  The value of the
   object ifMauIfIndex is the same as the value of 'ifIndex' used to
   instantiate the interface to which the given MAU is connected.

   It is REQUIRED that an agent implementing the interface-MAU related
   objects in this MIB will also implement the Ethernet-like Interfaces
   MIB, [ETHERIF].  Furthermore, when the interface-MAU related objects
   are used to manage a 10GBASE-W PHY -- i.e., when ifMauType is equal
   to dot3MauType10GigBaseW or any other 10GBASE-W variant -- then the
   agent MUST also support the Ethernet WAN Interface Sublayer (WIS) MIB
   [ETHERWIS] and must follow the interface layering model specified
   therein.  In that case the value of the object ifMauIfIndex is the
   same as the value of 'ifIndex' for the layer at the top of the stack,
   i.e., for the ifTable entry that has 'ifType' equal to
   ethernetCsmacd(6).  If the interface-MAU related objects are used to
   manage a PHY that allows the MAU type to be changed dynamically, then
   the agent SHALL create ifTable, ifStackTable, and ifInvStackTable
   entries that pertain to the WIS when ifMauDefaultType is changed to a
   10GBASEW variant (i.e., one of dot3MauType10GigBaseW,
   dot3MauType10GigBaseEW, dot3MauType10GigBaseLW, or
   dot3MauType10GigBaseSW) from any other type, and shall destroy the
   WIS-related entries when ifMauDefaultType is changed to a non-
   10GBASE-W type.  The agent SHALL also change the values of
   'ifConnectorPresent' and 'ifHighSpeed' in the ifTable entry indexed
   by ifMauIfIndex as specified in [ETHERIF] and [ETHERWIS] when
   ifMauDefaultType is manipulated in this way but SHALL NOT otherwise
   alter that entry.

   (Note that repeater ports are not represented as interfaces in the
   Interface MIB.)

3.5.2.  Relationship to the 802.3 Repeater MIB

   The section of this document that defines repeater MAU-related
   objects specifies an extension to the 802.3 Repeater MIB defined in
   [RFC2108].  An agent implementing these repeater-MAU related objects
   MUST also implement the 802.3 Repeater MIB.

   The values of 'rpMauGroupIndex' and 'rpMauPortIndex' used to
   instantiate a repeater MAU variable SHALL be the same as the values
   of 'rptrPortGroupIndex' and 'rptrPortIndex' used to instantiate the
   port to which the given MAU is connected.

3.6.  Management of Internal MAUs

   In some situations, a MAU can be "internal" -- i.e., its



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   functionality is implemented entirely within a device.  For example,
   a managed repeater may contain an internal repeater-MAU and/or an
   internal interface-MAU through which management communications
   originating on one of the repeater's external ports pass in order to
   reach the management agent associated with the repeater.  Such
   internal MAUs may or may not be managed.  If they are managed,
   objects describing their attributes should appear in the appropriate
   MIB subtree:  dot3RpMauBasicGroup for internal repeater-MAUs and
   dot3IfMauBasicGroup for internal interface-MAUs.


3.7.  Mapping of IEEE 802.3 Managed Objects

   IEEE 802.3 Managed Object             Corresponding SNMP Object

   oMAU
    .aMAUID                              rpMauIndex or
                                         ifMauIndex or
                                         broadMauIndex
    .aMAUType                            rpMauType or
                                         ifMauType
    .aMAUTypeList                        ifMauTypeListBits
    .aMediaAvailable                     rpMauMediaAvailable or
                                         ifMauMediaAvailable
    .aLoseMediaCounter                   rpMauMediaAvailableStateExits
                                         or
                                         ifMauMediaAvailableStateExits
    .aJabber                             rpMauJabberState and
                                         rpMauJabberingStateEnters or
                                         ifMauJabberState and
                                         ifMauJabberingStateEnters
    .aMAUAdminState                      rpMauStatus or
                                         ifMauStatus
    .aBbMAUXmitRcvSplitType              broadMauXmtRcvSplitType
    .aBroadbandFrequencies               broadMauXmtCarrierFreq and
                                         broadMauTranslationFreq
    .aFalseCarriers                      rpMauFalseCarriers or
                                         ifMauFalseCarriers
    .acResetMAU                          rpMauStatus or
                                         ifMauStatus
    .acMAUAdminControl                   rpMauStatus or
                                         ifMauStatus
    .nJabber                             rpMauJabberTrap or
                                         ifMauJabberTrap

   oAutoNegotiation
    .aAutoNegID                          ifMauIndex
    .aAutoNegAdminState                  ifMauAutoNegAdminStatus



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    .aAutoNegRemoteSignalling            ifMauAutoNegRemoteSignalling
    .aAutoNegAutoConfig                  ifMauAutoNegConfig
    .aAutoNegLocalTechnologyAbility      ifMauAutoNegCapabilityBits
    .aAutoNegAdvertisedTechnologyAbility ifMauAutoNegAdvertisedBits and
                                         ifMauAutoNegRemoteFaultAdvertised
    .aAutoNegReceivedTechnologyAbility   ifMauAutoNegReceivedBits and
                                         ifMauAutoNegRemoteFaultReceived
    .acAutoNegRestartAutoConfig          ifMauAutoNegRestart
    .acAutoNegAdminControl               ifMauAutoNegAdminStatus

   The following IEEE 802.3 managed objects have not been included in
   this MIB for the following reasons.

   IEEE 802.3 Managed Object             Corresponding SNMP Object

   oMAU
    .aIdleErrorCount                     Only useful for 100BaseT2,
                                         which is not widely
                                         implemented.

   oAutoNegotiation
    .aAutoNegLocalSelectorAbility        Only needed for support of
    .aAutoNegAdvertisedSelectorAbility   isoethernet (802.9a), which is
    .aAutoNegReceivedSelectorAbility     not supported by this MIB.


4.  Definitions

   MAU-MIB DEFINITIONS ::= BEGIN

       IMPORTS
           Counter32, Integer32, Counter64,
           OBJECT-TYPE, MODULE-IDENTITY, NOTIFICATION-TYPE,
           OBJECT-IDENTITY, mib-2
               FROM SNMPv2-SMI
           TruthValue, TEXTUAL-CONVENTION
               FROM SNMPv2-TC
           OBJECT-GROUP, MODULE-COMPLIANCE, NOTIFICATION-GROUP
               FROM SNMPv2-CONF
           InterfaceIndex
               FROM IF-MIB;

       mauMod MODULE-IDENTITY
           LAST-UPDATED "200205100000Z"  -- May 10, 2002
           ORGANIZATION "IETF Ethernet Interfaces and Hub MIB
                        Working Group"
           CONTACT-INFO
               "WG E-mail: hubmib@ietf.org



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             To subscribe: hubmib-request@ietf.org

                    Chair: Dan Romascanu
                   Postal: Avaya Inc.
                           Atidim Technology Park, Bldg. 3
                           Tel Aviv 61131
                           Israel
                      Tel: +972 3 645 8414
                   E-mail: dromasca@avaya.com

                   Editor: John Flick
                   Postal: Hewlett-Packard Company
                           8000 Foothills Blvd. M/S 5557
                           Roseville, CA 95747-5557
                           USA
                      Tel: +1 916 785 4018
                      Fax: +1 916 785 1199
                   E-mail: johnf@rose.hp.com"
           DESCRIPTION "Management information for 802.3 MAUs.

                       The following reference is used throughout
                       this MIB module:

                       [IEEE 802.3 Std] refers to
                          IEEE Std 802.3, 2000 Edition: 'IEEE Standard
                          for Information technology -
                          Telecommunications and information exchange
                          between systems - Local and metropolitan
                          area networks - Specific requirements -
                          Part 3: Carrier sense multiple access with
                          collision detection (CSMA/CD) access method
                          and physical layer specifications', as
                          amended by IEEE Draft P802.3ae/D4.3:
                          'Supplement to Carrier Sense Multiple Access
                          with Collision Detection (CSMA/CD) Access
                          Method & Physica Layer Specifications -
                          Media Access Control (MAC) Parameters,
                          Physical Layer, and Management Parameters
                          for 10 Gb/s Operation', April 2002.

                       Of particular interest is Clause 30, '10Mb/s,
                       100Mb/s, 1000Mb/s and 10 Gb/s Management'."

           REVISION    "200205100000Z"  -- May 10, 2002
           DESCRIPTION "This version published as RFC XXXX.  Updated
                       to include support for 10 Gb/s MAUs."

           REVISION    "9908240400Z" -- August 24, 1999



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           DESCRIPTION "This version published as RFC 2668.  Updated
                       to include support for 1000 Mb/sec
                       MAUs and flow control negotiation."

           REVISION    "9710310000Z" -- October 31, 1997
           DESCRIPTION "Version published as RFC 2239."

           REVISION    "9309300000Z" -- September30, 1993
           DESCRIPTION "Initial version, published as RFC 1515."

           ::= { snmpDot3MauMgt 6 }


       snmpDot3MauMgt OBJECT IDENTIFIER ::= { mib-2 26 }

       -- textual conventions

       JackType ::= TEXTUAL-CONVENTION
           STATUS      current
           DESCRIPTION "Common enumeration values for repeater
                       and interface MAU jack types."
           SYNTAX      INTEGER {
                           other(1),
                           rj45(2),
                           rj45S(3), -- rj45 shielded
                           db9(4),
                           bnc(5),
                           fAUI(6),  -- female aui
                           mAUI(7),  -- male aui
                           fiberSC(8),
                           fiberMIC(9),
                           fiberST(10),
                           telco(11),
                           mtrj(12),  -- fiber MT-RJ
                           hssdc(13), -- fiber channel style-2
                           fiberLC(14)
                       }


       dot3RpMauBasicGroup
           OBJECT IDENTIFIER ::= { snmpDot3MauMgt 1 }
       dot3IfMauBasicGroup
           OBJECT IDENTIFIER ::= { snmpDot3MauMgt 2 }
       dot3BroadMauBasicGroup
           OBJECT IDENTIFIER ::= { snmpDot3MauMgt 3 }

       dot3IfMauAutoNegGroup
           OBJECT IDENTIFIER ::= { snmpDot3MauMgt 5 }



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       -- object identities for MAU types
       --  (see rpMauType and ifMauType for usage)

       dot3MauType
           OBJECT IDENTIFIER ::= { snmpDot3MauMgt 4 }

       dot3MauTypeAUI OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "no internal MAU, view from AUI"
           ::= { dot3MauType 1 }

       dot3MauType10Base5 OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "thick coax MAU (per 802.3 section 8)"
           ::= { dot3MauType 2 }

       dot3MauTypeFoirl OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "FOIRL MAU (per 802.3 section 9.9)"
           ::= { dot3MauType 3 }

       dot3MauType10Base2 OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "thin coax MAU (per 802.3 section 10)"
           ::= { dot3MauType 4 }

       dot3MauType10BaseT OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "UTP MAU (per 802.3 section 14).
                       Note that it is strongly recommended that
                       agents return either dot3MauType10BaseTHD or
                       dot3MauType10BaseTFD if the duplex mode is
                       known.  However, management applications should
                       be prepared to receive this MAU type value from
                       older agent implementations."
           ::= { dot3MauType 5 }

       dot3MauType10BaseFP OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "passive fiber MAU (per 802.3 section 16)"
           ::= { dot3MauType 6 }

       dot3MauType10BaseFB OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "sync fiber MAU (per 802.3 section 17)"
           ::= { dot3MauType 7 }

       dot3MauType10BaseFL OBJECT-IDENTITY



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           STATUS      current
           DESCRIPTION "async fiber MAU (per 802.3 section 18)
                       Note that it is strongly recommended that
                       agents return either dot3MauType10BaseFLHD or
                       dot3MauType10BaseFLFD if the duplex mode is
                       known.  However, management applications should
                       be prepared to receive this MAU type value from
                       older agent implementations."
           ::= { dot3MauType 8 }

       dot3MauType10Broad36 OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "broadband DTE MAU (per 802.3 section 11).
                       Note that 10BROAD36 MAUs can be attached to
                       interfaces but not to repeaters."
           ::= { dot3MauType 9 }

       ------ new since RFC 1515:

       dot3MauType10BaseTHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "UTP MAU (per 802.3 section 14), half duplex
                       mode"
           ::= { dot3MauType 10 }

       dot3MauType10BaseTFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "UTP MAU (per 802.3 section 14), full duplex
                       mode"
           ::= { dot3MauType 11 }

       dot3MauType10BaseFLHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "async fiber MAU (per 802.3 section 18), half
                       duplex mode"
           ::= { dot3MauType 12 }

       dot3MauType10BaseFLFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "async fiber MAU (per 802.3 section 18), full
                       duplex mode"
           ::= { dot3MauType 13 }

       dot3MauType100BaseT4 OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "4 pair categ. 3 UTP (per 802.3 section 23)"
           ::= { dot3MauType 14 }




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       dot3MauType100BaseTXHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "2 pair categ. 5 UTP (per 802.3 section 25),
                       half duplex mode"
           ::= { dot3MauType 15 }

       dot3MauType100BaseTXFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "2 pair categ. 5 UTP (per 802.3 section 25),
                       full duplex mode"
           ::= { dot3MauType 16 }

       dot3MauType100BaseFXHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "X fiber over PMT (per 802.3 section 26), half
                       duplex mode"
           ::= { dot3MauType 17 }

       dot3MauType100BaseFXFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "X fiber over PMT (per 802.3 section 26), full
                       duplex mode"
           ::= { dot3MauType 18 }

       dot3MauType100BaseT2HD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "2 pair categ. 3 UTP (per 802.3 section 32),
                       half duplex mode"
           ::= { dot3MauType 19 }

       dot3MauType100BaseT2FD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "2 pair categ. 3 UTP (per 802.3 section 32),
                       full duplex mode"
           ::= { dot3MauType 20 }

       ------ new since RFC 2239:

       dot3MauType1000BaseXHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "PCS/PMA (per 802.3 section 36), unknown PMD,
                       half duplex mode"
           ::= { dot3MauType 21 }

       dot3MauType1000BaseXFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "PCS/PMA (per 802.3 section 36), unknown PMD,
                       full duplex mode"



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           ::= { dot3MauType 22 }

       dot3MauType1000BaseLXHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Fiber over long-wavelength laser (per 802.3
                       section 38), half duplex mode"
           ::= { dot3MauType 23 }

       dot3MauType1000BaseLXFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Fiber over long-wavelength laser (per 802.3
                       section 38), full duplex mode"
           ::= { dot3MauType 24 }

       dot3MauType1000BaseSXHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Fiber over short-wavelength laser (per 802.3
                       section 38), half duplex mode"
           ::= { dot3MauType 25 }

       dot3MauType1000BaseSXFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Fiber over short-wavelength laser (per 802.3
                       section 38), full duplex mode"
           ::= { dot3MauType 26 }

       dot3MauType1000BaseCXHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Copper over 150-Ohm balanced cable (per 802.3
                       section 39), half duplex mode"
           ::= { dot3MauType 27 }

       dot3MauType1000BaseCXFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Copper over 150-Ohm balanced cable (per 802.3
                       section 39), full duplex mode"
           ::= { dot3MauType 28 }

       dot3MauType1000BaseTHD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Four-pair Category 5 UTP (per 802.3 section
                       40), half duplex mode"
           ::= { dot3MauType 29 }

       dot3MauType1000BaseTFD OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "Four-pair Category 5 UTP (per 802.3 section
                       40), full duplex mode"



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           ::= { dot3MauType 30 }

       ------ new since RFC 2668:

       dot3MauType10GigBaseX OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "X PCS/PMA (per 802.3 section 48), unknown PMD."
           ::= { dot3MauType 31 }

       dot3MauType10GigBaseLX4 OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "X fiber over WWDM optics (per 802.3 section
                       53)"
           ::= { dot3MauType 32 }

       dot3MauType10GigBaseR OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "R PCS/PMA (per 802.3 section 49), unknown PMD."
           ::= { dot3MauType 33 }

       dot3MauType10GigBaseER OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "R fiber over 1550 nm optics (per 802.3 section
                       52)"
           ::= { dot3MauType 34 }

       dot3MauType10GigBaseLR OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "R fiber over 1310 nm optics (per 802.3 section
                       52)"
           ::= { dot3MauType 35 }

       dot3MauType10GigBaseSR OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "R fiber over 850 nm optics (per 802.3 section
                       52)"
           ::= { dot3MauType 36 }

       dot3MauType10GigBaseW OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "W PCS/PMA (per 802.3 section 49 and 50),
                       unknown PMD."
           ::= { dot3MauType 37 }

       dot3MauType10GigBaseEW OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "W fiber over 1550 nm optics (per 802.3 section
                       52)"



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           ::= { dot3MauType 38 }

       dot3MauType10GigBaseLW OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "W fiber over 1310 nm optics (per 802.3 section
                       52)"
           ::= { dot3MauType 39 }

       dot3MauType10GigBaseSW OBJECT-IDENTITY
           STATUS      current
           DESCRIPTION "W fiber over 850 nm optics (per 802.3 section
                       52)"
           ::= { dot3MauType 40 }


       --
       -- The Basic Repeater MAU Table
       --

       rpMauTable OBJECT-TYPE
           SYNTAX      SEQUENCE OF RpMauEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "Table of descriptive and status information
                       about the MAU(s) attached to the ports of a
                       repeater."
           ::= { dot3RpMauBasicGroup 1 }

       rpMauEntry OBJECT-TYPE
           SYNTAX      RpMauEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "An entry in the table, containing information
                       about a single MAU."
           INDEX       { rpMauGroupIndex,
                         rpMauPortIndex,
                         rpMauIndex
                       }
           ::= { rpMauTable 1 }

       RpMauEntry ::=
           SEQUENCE {
               rpMauGroupIndex                     Integer32,
               rpMauPortIndex                      Integer32,
               rpMauIndex                          Integer32,
               rpMauType                           OBJECT IDENTIFIER,
               rpMauStatus                         INTEGER,
               rpMauMediaAvailable                 INTEGER,



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               rpMauMediaAvailableStateExits       Counter32,
               rpMauJabberState                    INTEGER,
               rpMauJabberingStateEnters           Counter32,
               rpMauFalseCarriers                  Counter32
       }

       rpMauGroupIndex OBJECT-TYPE
           SYNTAX      Integer32 (1..2147483647)
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This variable uniquely identifies the group
                       containing the port to which the MAU described
                       by this entry is connected.

                       Note:  In practice, a group will generally be
                       a field-replaceable unit (i.e., module, card,
                       or board) that can fit in the physical system
                       enclosure, and the group number will correspond
                       to a number marked on the physical enclosure.

                       The group denoted by a particular value of this
                       object is the same as the group denoted by the
                       same value of rptrGroupIndex."
           REFERENCE   "Reference RFC 2108, rptrGroupIndex."
           ::= { rpMauEntry 1 }

       rpMauPortIndex OBJECT-TYPE
           SYNTAX      Integer32 (1..2147483647)
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This variable uniquely identifies the repeater
                       port within group rpMauGroupIndex to which the
                       MAU described by this entry is connected."
           REFERENCE   "Reference RFC 2108, rptrPortIndex."
           ::= { rpMauEntry 2 }

       rpMauIndex OBJECT-TYPE
           SYNTAX      Integer32 (1..2147483647)
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This variable uniquely identifies the MAU
                       described by this entry from among other
                       MAUs connected to the same port
                       (rpMauPortIndex)."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.1, aMAUID."
           ::= { rpMauEntry 3 }

       rpMauType OBJECT-TYPE



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           SYNTAX      OBJECT IDENTIFIER
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This object identifies the MAU type.  An
                       initial set of MAU types are defined above.  The
                       assignment of OBJECT IDENTIFIERs to new types of
                       MAUs is managed by the IANA.  If the MAU type is
                       unknown, the object identifier

                       unknownMauType OBJECT IDENTIFIER ::= { 0 0 }

                       is returned.  Note that unknownMauType is a
                       syntactically valid object identifier, and any
                       conformant implementation of ASN.1 and the BER
                       must be able to generate and recognize this
                       value."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.2, aMAUType."
           ::= { rpMauEntry 4 }

       rpMauStatus OBJECT-TYPE
           SYNTAX      INTEGER {
                           other(1),
                           unknown(2),
                           operational(3),
                           standby(4),
                           shutdown(5),
                           reset(6)
                       }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION "The current state of the MAU.  This object MAY
                       be implemented as a read-only object by those
                       agents and MAUs that do not implement software
                       control of the MAU state.  Some agents may not
                       support setting the value of this object to some
                       of the enumerated values.

                       The value other(1) is returned if the MAU is in
                       a state other than one of the states 2 through
                       6.

                       The value unknown(2) is returned when the MAU's
                       true state is unknown; for example, when it is
                       being initialized.

                       A MAU in the operational(3) state is fully
                       functional, operates, and passes signals to its
                       attached DTE or repeater port in accordance to



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                       its specification.

                       A MAU in standby(4) state forces DI and CI to
                       idle and the media transmitter to idle or fault,
                       if supported.  Standby(4) mode only applies to
                       link type MAUs.  The state of
                       rpMauMediaAvailable is unaffected.

                       A MAU in shutdown(5) state assumes the same
                       condition on DI, CI, and the media transmitter
                       as though it were powered down or not connected.
                       The MAU MAY return other(1) value for the
                       rpMauJabberState and rpMauMediaAvailable objects
                       when it is in this state.  For an AUI, this
                       state will remove power from the AUI.

                       Setting this variable to the value reset(6)
                       resets the MAU in the same manner as a
                       power-off, power-on cycle of at least one-half
                       second would.  The agent is not required to
                       return the value reset (6).

                       Setting this variable to the value
                       operational(3), standby(4), or shutdown(5)
                       causes the MAU to assume the respective state
                       except that setting a mixing-type MAU or an AUI
                       to standby(4) will cause the MAU to enter the
                       shutdown state."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.7, aMAUAdminState,
                       30.5.1.2.2, acMAUAdminControl, and 30.5.1.2.1,
                       acResetMAU."
           ::= { rpMauEntry 5 }

       rpMauMediaAvailable OBJECT-TYPE
           SYNTAX      INTEGER {
                           other(1),
                           unknown(2),
                           available(3),
                           notAvailable(4),
                           remoteFault(5),
                           invalidSignal(6),
                           remoteJabber(7),
                           remoteLinkLoss(8),
                           remoteTest(9),
                           offline(10),
                           autoNegError(11)
                       }
           MAX-ACCESS  read-only



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           STATUS      current
           DESCRIPTION "If the MAU is a link or fiber type (FOIRL,
                       10BASE-T, 10BASE-F) then this is equivalent to
                       the link test fail state/low light function.
                       For an AUI or a coax (including broadband) MAU
                       this indicates whether or not loopback is
                       detected on the DI circuit.  The value of this
                       attribute persists between packets for MAU types
                       AUI, 10BASE5, 10BASE2, 10BROAD36, and 10BASE-FP.

                       The value other(1) is returned if the
                       mediaAvailable state is not one of 2 through 11.

                       The value unknown(2) is returned when the MAU's
                       true state is unknown; for example, when it is
                       being initialized.  At power-up or following a
                       reset, the value of this attribute will be
                       unknown for AUI, coax, and 10BASE-FP MAUs.  For
                       these MAUs loopback will be tested on each
                       transmission during which no collision is
                       detected.  If DI is receiving input when DO
                       returns to IDL after a transmission and there
                       has been no collision during the transmission
                       then loopback will be detected.  The value of
                       this attribute will only change during
                       non-collided transmissions for AUI, coax, and
                       10BASE-FP MAUs.

                       For 100Mbps and 1000Mbps MAUs, the enumerations
                       match the states within the respective link
                       integrity state diagrams, fig 32-16, 23-12 and
                       24-15 of sections 32, 23 and 24 of [16].  Any
                       MAU which implements management of
                       auto-negotiation will map remote fault
                       indication to remote fault.

                       The value available(3) indicates that the link,
                       light, or loopback is normal.  The value
                       notAvailable(4) indicates link loss, low light,
                       or no loopback.

                       The value remoteFault(5) indicates that a fault
                       has been detected at the remote end of the link.
                       This value applies to 10BASE-FB, 100BASE-T4 Far
                       End Fault Indication and non-specified remote
                       faults from a system running auto-negotiation.
                       The values remoteJabber(7), remoteLinkLoss(8),
                       and remoteTest(9) SHOULD be used instead of



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                       remoteFault(5) where the reason for remote fault
                       is identified in the remote signaling protocol.

                       The value invalidSignal(6) indicates that an
                       invalid signal has been received from the other
                       end of the link.  InvalidSignal(6) applies only
                       to MAUs of type 10BASE-FB.

                       Where an IEEE Std 802.3u-1995 clause 22 MII
                       is present, a logic one in the remote fault bit
                       (reference section 22.2.4.2.8 of that document)
                       maps to the value remoteFault(5), and a logic
                       zero in the link status bit (reference section
                       22.2.4.2.10 of that document) maps to the value
                       notAvailable(4).  The value notAvailable(4)
                       takes precedence over the value remoteFault(5).

                       Any MAU that implements management of clause 37
                       Auto-Negotiation will map the received Remote
                       Fault (RF1 and RF2) bit values for Offline to
                       offline(10), Link Failure to remoteFault(5) and
                       Auto-Negotiation Error to autoNegError(11)."

           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.4, aMediaAvailable."
           ::= { rpMauEntry 6 }

       rpMauMediaAvailableStateExits OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A count of the number of times that
                       rpMauMediaAvailable for this MAU instance leaves
                       the state available(3).

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of rptrMonitorPortLastChange."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.5,
                       aLoseMediaCounter.
                       RFC 2108, rptrMonitorPortLastChange"
           ::= { rpMauEntry 7 }

       rpMauJabberState OBJECT-TYPE
           SYNTAX      INTEGER {
                           other(1),
                           unknown(2),
                           noJabber(3),



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                           jabbering(4)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "The value other(1) is returned if the jabber
                       state is not 2, 3, or 4.  The agent MUST always
                       return other(1) for MAU type dot3MauTypeAUI.

                       The value unknown(2) is returned when the MAU's
                       true state is unknown; for example, when it is
                       being initialized.

                       If the MAU is not jabbering the agent returns
                       noJabber(3).  This is the 'normal' state.

                       If the MAU is in jabber state the agent returns
                       the jabbering(4) value."
           REFERENCE "[IEEE 802.3 Std], 30.5.1.1.6,
                     aJabber.jabberFlag."
           ::= { rpMauEntry 8 }

       rpMauJabberingStateEnters OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A count of the number of times that
                       mauJabberState for this MAU instance enters the
                       state jabbering(4).  For MAUs of type
                       dot3MauTypeAUI, dot3MauType100BaseT4,
                       dot3MauType100BaseTX, dot3MauType100BaseFX and
                       all 1000Mbps types, this counter will always
                       indicate zero.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of rptrMonitorPortLastChange."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.6,
                       aJabber.jabberCounter.
                       RFC 2108, rptrMonitorPortLastChange"
           ::= { rpMauEntry 9 }

       rpMauFalseCarriers OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A count of the number of false carrier events
                       during IDLE in 100BASE-X links.  This counter



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                       does not increment at the symbol rate.  It can
                       increment after a valid carrier completion at a
                       maximum rate of once per 100 ms until the next
                       carrier event.

                       This counter increments only for MAUs of type
                       dot3MauType100BaseT4, dot3MauType100BaseTX, and
                       dot3MauType100BaseFX and all 1000Mbps types.
                       For all other MAU types, this counter will
                       always indicate zero.

                       The approximate minimum time for rollover of
                       this counter is 7.4 hours.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of rptrMonitorPortLastChange."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.10, aFalseCarriers.
                       RFC 2108, rptrMonitorPortLastChange"
           ::= { rpMauEntry 10 }


       -- The rpJackTable applies to MAUs attached to repeaters
       -- which have one or more external jacks (connectors).

       rpJackTable OBJECT-TYPE
           SYNTAX      SEQUENCE OF RpJackEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "Information about the external jacks attached
                       to MAUs attached to the ports of a repeater."
           ::= { dot3RpMauBasicGroup 2 }

       rpJackEntry OBJECT-TYPE
           SYNTAX      RpJackEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "An entry in the table, containing information
                       about a particular jack."
           INDEX       { rpMauGroupIndex,
                         rpMauPortIndex,
                         rpMauIndex,
                         rpJackIndex
                       }
           ::= { rpJackTable 1 }

       RpJackEntry ::=



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           SEQUENCE {
               rpJackIndex                         Integer32,
               rpJackType                          JackType
           }

       rpJackIndex OBJECT-TYPE
           SYNTAX      Integer32 (1..2147483647)
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "This variable uniquely identifies the jack
                       described by this entry from among other jacks
                       attached to the same MAU (rpMauIndex)."
           ::= { rpJackEntry 1 }

       rpJackType OBJECT-TYPE
           SYNTAX      JackType
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "The jack connector type, as it appears on the
                       outside of the system."
           ::= { rpJackEntry 2 }


       --
       -- The Basic Interface MAU Table
       --

       ifMauTable OBJECT-TYPE
           SYNTAX      SEQUENCE OF IfMauEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "Table of descriptive and status information
                       about MAU(s) attached to an interface."
           ::= { dot3IfMauBasicGroup 1 }

       ifMauEntry OBJECT-TYPE
           SYNTAX      IfMauEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "An entry in the table, containing information
                       about a single MAU."
           INDEX       { ifMauIfIndex,
                         ifMauIndex
                       }
           ::= { ifMauTable 1 }

       IfMauEntry ::=
           SEQUENCE {



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               ifMauIfIndex                        InterfaceIndex,
               ifMauIndex                          Integer32,
               ifMauType                           OBJECT IDENTIFIER,
               ifMauStatus                         INTEGER,
               ifMauMediaAvailable                 INTEGER,
               ifMauMediaAvailableStateExits       Counter32,
               ifMauJabberState                    INTEGER,
               ifMauJabberingStateEnters           Counter32,
               ifMauFalseCarriers                  Counter32,
               ifMauTypeList                       Integer32,
               ifMauDefaultType                    OBJECT IDENTIFIER,
               ifMauAutoNegSupported               TruthValue,
               ifMauTypeListBits                   BITS,
               ifMauHCFalseCarriers                Counter64
           }

       ifMauIfIndex OBJECT-TYPE
           SYNTAX      InterfaceIndex
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This variable uniquely identifies the interface
                       to which the MAU described by this entry is
                       connected."
           REFERENCE   "RFC 2863, ifIndex"
           ::= { ifMauEntry 1 }

       ifMauIndex OBJECT-TYPE
           SYNTAX      Integer32 (1..2147483647)
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This variable uniquely identifies the MAU
                       described by this entry from among other MAUs
                       connected to the same interface (ifMauIfIndex)."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.1, aMAUID."
           ::= { ifMauEntry 2 }

       ifMauType OBJECT-TYPE
           SYNTAX      OBJECT IDENTIFIER
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This object identifies the MAU type.  An
                       initial set of MAU types are defined above.  The
                       assignment of OBJECT IDENTIFIERs to new types of
                       MAUs is managed by the IANA.  If the MAU type is
                       unknown, the object identifier

                       unknownMauType OBJECT IDENTIFIER ::= { 0 0 }




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                       is returned.  Note that unknownMauType is a
                       syntactically valid object identifier, and any
                       conformant implementation of ASN.1 and the BER
                       must be able to generate and recognize this
                       value.

                       This object represents the operational type of
                       the MAU, as determined by either (1) the result
                       of the auto-negotiation function or (2) if
                       auto-negotiation is not enabled or is not
                       implemented for this MAU, by the value of the
                       object ifMauDefaultType.  In case (2), a set to
                       the object ifMauDefaultType will force the MAU
                       into the new operating mode."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.2, aMAUType."
           ::= { ifMauEntry 3 }

       ifMauStatus OBJECT-TYPE
           SYNTAX      INTEGER {
                           other(1),
                           unknown(2),
                           operational(3),
                           standby(4),
                           shutdown(5),
                           reset(6)
                       }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION "The current state of the MAU.  This object MAY
                       be implemented as a read-only object by those
                       agents and MAUs that do not implement software
                       control of the MAU state.  Some agents may not
                       support setting the value of this object to some
                       of the enumerated values.

                       The value other(1) is returned if the MAU is in
                       a state other than one of the states 2 through
                       6.

                       The value unknown(2) is returned when the MAU's
                       true state is unknown; for example, when it is
                       being initialized.

                       A MAU in the operational(3) state is fully
                       functional, operates, and passes signals to its
                       attached DTE or repeater port in accordance to
                       its specification.




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                       A MAU in standby(4) state forces DI and CI to
                       idle and the media transmitter to idle or fault,
                       if supported.  Standby(4) mode only applies to
                       link type MAUs.  The state of
                       ifMauMediaAvailable is unaffected.

                       A MAU in shutdown(5) state assumes the same
                       condition on DI, CI, and the media transmitter
                       as though it were powered down or not connected.
                       The MAU MAY return other(1) value for the
                       ifMauJabberState and ifMauMediaAvailable objects
                       when it is in this state.  For an AUI, this
                       state will remove power from the AUI.

                       Setting this variable to the value reset(6)
                       resets the MAU in the same manner as a
                       power-off, power-on cycle of at least one-half
                       second would.  The agent is not required to
                       return the value reset (6).

                       Setting this variable to the value
                       operational(3), standby(4), or shutdown(5)
                       causes the MAU to assume the respective state
                       except that setting a mixing-type MAU or an AUI
                       to standby(4) will cause the MAU to enter the
                       shutdown state."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.7, aMAUAdminState,
                       30.5.1.2.2, acMAUAdminControl, and 30.5.1.2.1,
                       acResetMAU."
           ::= { ifMauEntry 4 }

       ifMauMediaAvailable OBJECT-TYPE
           SYNTAX      INTEGER {
                           other(1),
                           unknown(2),
                           available(3),
                           notAvailable(4),
                           remoteFault(5),
                           invalidSignal(6),
                           remoteJabber(7),
                           remoteLinkLoss(8),
                           remoteTest(9),
                           offline(10),
                           autoNegError(11),
                           pmdLinkFault(12),
                           wisFrameLoss(13),
                           wisSignalLoss(14),
                           pcsLinkFault(15),



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                           excessiveBER(16),
                           dxsLinkFault(17),
                           pxsLinkFault(18)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "If the MAU is a link or fiber type (FOIRL,
                       10BASE-T, 10BASE-F) then this is equivalent to
                       the link test fail state/low light function.
                       For an AUI or a coax (including broadband) MAU
                       this indicates whether or not loopback is
                       detected on the DI circuit.  The value of this
                       attribute persists between packets for MAU types
                       AUI, 10BASE5, 10BASE2, 10BROAD36, and 10BASE-FP.

                       The value other(1) is returned if the
                       mediaAvailable state is not one of 2 through 18.

                       The value unknown(2) is returned when the MAU's
                       true state is unknown; for example, when it is
                       being initialized.  At power-up or following a
                       reset, the value of this attribute will be
                       unknown for AUI, coax, and 10BASE-FP MAUs.  For
                       these MAUs loopback will be tested on each
                       transmission during which no collision is
                       detected.  If DI is receiving input when DO
                       returns to IDL after a transmission and there
                       has been no collision during the transmission
                       then loopback will be detected.  The value of
                       this attribute will only change during
                       non-collided transmissions for AUI, coax, and
                       10BASE-FP MAUs.

                       For 100Mbps and 1000Mbps MAUs, the enumerations
                       match the states within the respective link
                       integrity state diagrams, fig 32-16, 23-12 and
                       24-15 of sections 32, 23 and 24 of [16].  Any
                       MAU which implements management of
                       auto-negotiation will map remote fault
                       indication to remote fault.

                       The value available(3) indicates that the link,
                       light, or loopback is normal.  The value
                       notAvailable(4) indicates link loss, low light,
                       or no loopback.

                       The value remoteFault(5) indicates that a fault
                       has been detected at the remote end of the link.



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                       This value applies to 10BASE-FB, 100BASE-T4 Far
                       End Fault Indication and non-specified remote
                       faults from a system running auto-negotiation.
                       The values remoteJabber(7), remoteLinkLoss(8),
                       and remoteTest(9) SHOULD be used instead of
                       remoteFault(5) where the reason for remote fault
                       is identified in the remote signaling protocol.

                       The value invalidSignal(6) indicates that an
                       invalid signal has been received from the other
                       end of the link.  InvalidSignal(6) applies only
                       to MAUs of type 10BASE-FB.

                       Where an IEEE Std 802.3u-1995 clause 22 MII
                       is present, a logic one in the remote fault bit
                       (reference section 22.2.4.2.8 of that document)
                       maps to the value remoteFault(5), and a logic
                       zero in the link status bit (reference section
                       22.2.4.2.10 of that document) maps to the value
                       notAvailable(4).  The value notAvailable(4)
                       takes precedence over the value remoteFault(5).

                       Any MAU that implements management of clause 37
                       Auto-Negotiation will map the received RF1 and
                       RF2 bit values for Offline to offline(10), Link
                       Failure to remoteFault(5) and Auto-Negotiation
                       Error to autoNegError(11).

                       For 10 Gb/s, the enumerations map to the states
                       within the Reconciliation Sublayer state diagram
                       as follows:
                         NoFault maps to the enumeration 'available(3)'
                         LocalFault maps to the enumeration
                           'notAvailable(4)'
                         RemoteFault maps to the enumeration
                           'remoteFault(5)'
                       The enumerations 'pmdLinkFault(12)',
                       'wisFrameLoss(13)', 'wisSignalLoss(14)',
                       'pcsLinkFault(15)', 'excessiveBER(16)', and
                       'dxsLinkFault(17)' and 'pxsLinkFault(18)' should
                       be used instead of the enumeration
                       'notAvailable(4)' where the reason for the local
                       fault can be identified through the use of the
                       MDIO Interface.  Where multiple reasons for the
                       local fault state can be identified only the
                       highest precedence error should be reported.
                       The precedence in descending order is as
                       follows:



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                           pxsLinkFault
                           pmdLinkFault
                           wisFrameLoss
                           wisSignalLoss
                           pcsLinkFault
                           excessiveBER
                           dxsLinkFault"
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.4, aMediaAvailable."
           ::= { ifMauEntry 5 }

       ifMauMediaAvailableStateExits OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A count of the number of times that
                       ifMauMediaAvailable for this MAU instance leaves
                       the state available(3).

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of ifCounterDiscontinuityTime."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.5,
                       aLoseMediaCounter.
                       RFC 2863, ifCounterDiscontinuityTime."
           ::= { ifMauEntry 6 }

       ifMauJabberState OBJECT-TYPE
           SYNTAX      INTEGER {
                           other(1),
                           unknown(2),
                           noJabber(3),
                           jabbering(4)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "The value other(1) is returned if the jabber
                       state is not 2, 3, or 4.  The agent MUST always
                       return other(1) for MAU type dot3MauTypeAUI.

                       The value unknown(2) is returned when the MAU's
                       true state is unknown; for example, when it is
                       being initialized.

                       If the MAU is not jabbering the agent returns
                       noJabber(3).  This is the 'normal' state.

                       If the MAU is in jabber state the agent returns



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                       the jabbering(4) value."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.6,
                       aJabber.jabberFlag."
           ::= { ifMauEntry 7 }

       ifMauJabberingStateEnters OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A count of the number of times that
                       mauJabberState for this MAU instance enters the
                       state jabbering(4). This counter will always
                       indicate zero for MAUs of type dot3MauTypeAUI
                       and those of speeds above 10Mbps.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of ifCounterDiscontinuityTime."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.6,
                       aJabber.jabberCounter.
                       RFC 2863, ifCounterDiscontinuityTime."
           ::= { ifMauEntry 8 }

       ifMauFalseCarriers OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A count of the number of false carrier events
                       during IDLE in 100BASE-X and 1000BASE-X links.

                       For all other MAU types, this counter will
                       always indicate zero. This counter does not
                       increment at the symbol rate.

                       It can increment after a valid carrier
                       completion at a maximum rate of once per 100 ms
                       for 100BASE-X and once per 10us for 1000BASE-X
                       until the next CarrierEvent.

                       This counter can roll over very quickly.  A
                       management station is advised to poll the
                       ifMauHCFalseCarriers instead of this counter in
                       order to avoid loss of information.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the



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                       value of ifCounterDiscontinuityTime."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.10, aFalseCarriers.
                       RFC 2863, ifCounterDiscontinuityTime."
           ::= { ifMauEntry 9 }

       ifMauTypeList OBJECT-TYPE
           SYNTAX      Integer32
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       A value that uniquely identifies the set of
                       possible IEEE 802.3 types that the MAU could be.
                       The value is a sum which initially takes the
                       value zero.  Then, for each type capability of
                       this MAU, 2 raised to the power noted below is
                       added to the sum. For example, a MAU which has
                       the capability to be only 10BASE-T would have a
                       value of 512 (2**9).  In contrast, a MAU which
                       supports both 10Base-T (full duplex) and
                       100BASE-TX (full duplex) would have a value of
                       ((2**11) + (2**16)) or 67584.

                       The powers of 2 assigned to the capabilities are
                       these:

                       Power  Capability
                         0      other or unknown
                         1      AUI
                         2      10BASE-5
                         3      FOIRL
                         4      10BASE-2
                         5      10BASE-T duplex mode unknown
                         6      10BASE-FP
                         7      10BASE-FB
                         8      10BASE-FL duplex mode unknown
                         9      10BROAD36
                        10      10BASE-T  half duplex mode
                        11      10BASE-T  full duplex mode
                        12      10BASE-FL half duplex mode
                        13      10BASE-FL full duplex mode
                        14      100BASE-T4
                        15      100BASE-TX half duplex mode
                        16      100BASE-TX full duplex mode
                        17      100BASE-FX half duplex mode
                        18      100BASE-FX full duplex mode
                        19      100BASE-T2 half duplex mode
                        20      100BASE-T2 full duplex mode



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                       If auto-negotiation is present on this MAU, this
                       object will map to ifMauAutoNegCapability.

                       This object has been deprecated in favour of
                       ifMauTypeListBits."
           ::= { ifMauEntry 10 }

       ifMauDefaultType OBJECT-TYPE
           SYNTAX      OBJECT IDENTIFIER
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION "This object identifies the default
                       administrative baseband MAU type, to be used in
                       conjunction with the operational MAU type
                       denoted by ifMauType.

                       The set of possible values for this object is
                       the same as the set defined for the ifMauType
                       object.

                       This object represents the
                       administratively-configured type of the MAU.  If
                       auto-negotiation is not enabled or is not
                       implemented for this MAU, the value of this
                       object determines the operational type of the
                       MAU.  In this case, a set to this object will
                       force the MAU into the specified operating mode.

                       If auto-negotiation is implemented and enabled
                       for this MAU, the operational type of the MAU
                       is determined by auto-negotiation, and the value
                       of this object denotes the type to which the MAU
                       will automatically revert if/when
                       auto-negotiation is later disabled.

                       NOTE TO IMPLEMENTORS:  It may be necessary to
                       provide for underlying hardware implementations
                       which do not follow the exact behavior specified
                       above.  In particular, when
                       ifMauAutoNegAdminStatus transitions from enabled
                       to disabled, the agent implementation MUST
                       ensure that the operational type of the MAU (as
                       reported by ifMauType) correctly transitions to
                       the value specified by this object, rather than
                       continuing to operate at the value earlier
                       determined by the auto-negotiation function."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.1, aMAUID, and
                       22.2.4.1.4."



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           ::= { ifMauEntry 11 }

       ifMauAutoNegSupported OBJECT-TYPE
           SYNTAX      TruthValue
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "This object indicates whether or not
                       auto-negotiation is supported on this MAU."
           ::= { ifMauEntry 12 }

       ifMauTypeListBits OBJECT-TYPE
           SYNTAX      BITS {
               bOther(0),         -- other or unknown
               bAUI(1),           -- AUI
               b10base5(2),       -- 10BASE-5
               bFoirl(3),         -- FOIRL

               b10base2(4),       -- 10BASE-2
               b10baseT(5),       -- 10BASE-T duplex mode unknown
               b10baseFP(6),      -- 10BASE-FP
               b10baseFB(7),      -- 10BASE-FB
               b10baseFL(8),      -- 10BASE-FL duplex mode unknown
               b10broad36(9),     -- 10BROAD36
               b10baseTHD(10),    -- 10BASE-T  half duplex mode
               b10baseTFD(11),    -- 10BASE-T  full duplex mode
               b10baseFLHD(12),   -- 10BASE-FL half duplex mode
               b10baseFLFD(13),   -- 10BASE-FL full duplex mode

               b100baseT4(14),    -- 100BASE-T4
               b100baseTXHD(15),  -- 100BASE-TX half duplex mode
               b100baseTXFD(16),  -- 100BASE-TX full duplex mode
               b100baseFXHD(17),  -- 100BASE-FX half duplex mode
               b100baseFXFD(18),  -- 100BASE-FX full duplex mode
               b100baseT2HD(19),  -- 100BASE-T2 half duplex mode
               b100baseT2FD(20),  -- 100BASE-T2 full duplex mode

               b1000baseXHD(21),  -- 1000BASE-X half duplex mode
               b1000baseXFD(22),  -- 1000BASE-X full duplex mode
               b1000baseLXHD(23), -- 1000BASE-LX half duplex mode
               b1000baseLXFD(24), -- 1000BASE-LX full duplex mode
               b1000baseSXHD(25), -- 1000BASE-SX half duplex mode
               b1000baseSXFD(26), -- 1000BASE-SX full duplex mode
               b1000baseCXHD(27), -- 1000BASE-CX half duplex mode
               b1000baseCXFD(28), -- 1000BASE-CX full duplex mode
               b1000baseTHD(29),  -- 1000BASE-T half duplex mode
               b1000baseTFD(30),  -- 1000BASE-T full duplex mode

               b10GbaseX(31),     -- 10GBASE-X



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               b10GbaseLX4(32),   -- 10GBASE-LX4
               b10GbaseR(33),     -- 10GBASE-R
               b10GbaseER(34),    -- 10GBASE-ER
               b10GbaseLR(35),    -- 10GBASE-LR
               b10GbaseSR(36),    -- 10GBASE-SR
               b10GbaseW(37),     -- 10GBASE-W
               b10GbaseEW(38),    -- 10GBASE-EW
               b10GbaseLW(39),    -- 10GBASE-LW
               b10GbaseSW(40)     -- 10GBASE-SW
           }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A value that uniquely identifies the set of
                       possible IEEE 802.3 types that the MAU could be.
                       If auto-negotiation is present on this MAU, this
                       object will map to ifMauAutoNegCapability.

                       Note that this MAU may be capable of operating
                       as a MAU type that is beyond the scope of this
                       MIB.  This is indicated by returning the
                       bit value bOther in addition to any bit values
                       for capabilities that are listed above."
           ::= { ifMauEntry 13 }

       ifMauHCFalseCarriers OBJECT-TYPE
           SYNTAX      Counter64
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A count of the number of false carrier events
                       during IDLE in 100BASE-X and 1000BASE-X links.

                       For all other MAU types, this counter will
                       always indicate zero. This counter does not
                       increment at the symbol rate.

                       This counter is a 64 bit version of
                       ifMauFalseCarriers.  Since the 32 bit version of
                       this counter can roll over very quickly,
                       management stations are advised to poll the
                       64 bit version instead in order to avoid loss
                       of information.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of ifCounterDiscontinuityTime."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.10, aFalseCarriers.
                       RFC 2863, ifCounterDiscontinuityTime."



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           ::= { ifMauEntry 14 }


       -- The ifJackTable applies to MAUs attached to interfaces
       -- which have one or more external jacks (connectors).

       ifJackTable OBJECT-TYPE
           SYNTAX      SEQUENCE OF IfJackEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "Information about the external jacks attached
                       to MAUs attached to an interface."
           ::= { dot3IfMauBasicGroup 2 }

       ifJackEntry OBJECT-TYPE
           SYNTAX      IfJackEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "An entry in the table, containing information
                       about a particular jack."
           INDEX       { ifMauIfIndex,
                         ifMauIndex,
                         ifJackIndex
                       }
           ::= { ifJackTable 1 }

       IfJackEntry ::=
           SEQUENCE {
               ifJackIndex                         Integer32,
               ifJackType                          JackType
           }


       ifJackIndex OBJECT-TYPE
           SYNTAX      Integer32 (1..2147483647)
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "This variable uniquely identifies the jack
                       described by this entry from among other jacks
                       attached to the same MAU."
           ::= { ifJackEntry 1 }

       ifJackType OBJECT-TYPE
           SYNTAX      JackType
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "The jack connector type, as it appears on the
                       outside of the system."



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           ::= { ifJackEntry 2 }


       -- The ifMauAutoNegTable applies to systems in which
       -- auto-negotiation is supported on one or more MAUs
       -- attached to interfaces.  Note that if auto-negotiation
       -- is present and enabled, the ifMauType object reflects
       -- the result of the auto-negotiation function.

       ifMauAutoNegTable OBJECT-TYPE
           SYNTAX      SEQUENCE OF IfMauAutoNegEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "Configuration and status objects for the
                       auto-negotiation function of MAUs attached to
                       interfaces."
           ::= { dot3IfMauAutoNegGroup 1 }

       ifMauAutoNegEntry OBJECT-TYPE
           SYNTAX      IfMauAutoNegEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "An entry in the table, containing configuration
                       and status information for the auto-negotiation
                       function of a particular MAU."
           INDEX       { ifMauIfIndex,
                         ifMauIndex
                       }
           ::= { ifMauAutoNegTable 1 }

       IfMauAutoNegEntry ::=
           SEQUENCE {
               ifMauAutoNegAdminStatus             INTEGER,
               ifMauAutoNegRemoteSignaling         INTEGER,
               ifMauAutoNegConfig                  INTEGER,
               ifMauAutoNegCapability              Integer32,
               ifMauAutoNegCapAdvertised           Integer32,
               ifMauAutoNegCapReceived             Integer32,
               ifMauAutoNegRestart                 INTEGER,
               ifMauAutoNegCapabilityBits          BITS,
               ifMauAutoNegCapAdvertisedBits       BITS,
               ifMauAutoNegCapReceivedBits         BITS,
               ifMauAutoNegRemoteFaultAdvertised   INTEGER,
               ifMauAutoNegRemoteFaultReceived     INTEGER
           }


       ifMauAutoNegAdminStatus OBJECT-TYPE



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           SYNTAX      INTEGER {
                           enabled(1),
                           disabled(2)
                       }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION "Setting this object to enabled(1) will cause
                       the interface which has the auto-negotiation
                       signaling ability to be enabled.

                       If the value of this object is disabled(2) then
                       the interface will act as it would if it had no
                       auto-negotiation signaling.  Under these
                       conditions, an IEEE 802.3 MAU will immediately
                       be forced to the state indicated by the value of
                       the object ifMauDefaultType.

                       NOTE TO IMPLEMENTORS:  When
                       ifMauAutoNegAdminStatus transitions from enabled
                       to disabled, the agent implementation MUST
                       ensure that the operational type of the MAU (as
                       reported by ifMauType) correctly transitions to
                       the value specified by the ifMauDefaultType
                       object, rather than continuing to operate at the
                       value earlier determined by the auto-negotiation
                       function."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.2,
                       aAutoNegAdminState and 30.6.1.2.2,
                       acAutoNegAdminControl."
           ::= { ifMauAutoNegEntry 1 }

       ifMauAutoNegRemoteSignaling OBJECT-TYPE
           SYNTAX      INTEGER {
                           detected(1),
                           notdetected(2)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A value indicating whether the remote end of
                       the link is using auto-negotiation signaling. It
                       takes the value detected(1) if and only if,
                       during the previous link negotiation, FLP Bursts
                       were received."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.3,
                       aAutoNegRemoteSignaling."
           ::= { ifMauAutoNegEntry 2 }

       ifMauAutoNegConfig OBJECT-TYPE



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           SYNTAX      INTEGER {
                           other(1),
                           configuring(2),
                           complete(3),
                           disabled(4),
                           parallelDetectFail(5)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A value indicating the current status of the
                       auto-negotiation process.  The enumeration
                       parallelDetectFail(5) maps to a failure in
                       parallel detection as defined in 28.2.3.1 of
                       [IEEE 802.3 Std]."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.4,
                       aAutoNegAutoConfig."
           ::= { ifMauAutoNegEntry 4 }

       ifMauAutoNegCapability OBJECT-TYPE
           SYNTAX      Integer32
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       A value that uniquely identifies the set of
                       capabilities of the local auto-negotiation
                       entity.  The value is a sum which initially
                       takes the value zero.  Then, for each capability
                       of this interface, 2 raised to the power noted
                       below is added to the sum. For example, an
                       interface which has the capability to support
                       only 100Base-TX half duplex would have a value
                       of 32768 (2**15).  In contrast, an interface
                       which supports both 100Base-TX half duplex and
                       and 100Base-TX full duplex would have a value of
                       98304 ((2**15) + (2**16)).

                       The powers of 2 assigned to the capabilities are
                       these:

                       Power   Capability
                         0       other or unknown
                        (1-9)    (reserved)
                        10       10BASE-T  half duplex mode
                        11       10BASE-T  full duplex mode
                        12       (reserved)
                        13       (reserved)
                        14       100BASE-T4



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                        15       100BASE-TX half duplex mode
                        16       100BASE-TX full duplex mode
                        17       (reserved)
                        18       (reserved)
                        19      100BASE-T2 half duplex mode
                        20      100BASE-T2 full duplex mode

                       Note that interfaces that support this MIB may
                       have capabilities that extend beyond the scope
                       of this MIB.

                       This object has been deprecated in favour of
                       ifMauAutoNegCapabilityBits"
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.5,
                       aAutoNegLocalTechnologyAbility."
           ::= { ifMauAutoNegEntry 5 }

       ifMauAutoNegCapAdvertised OBJECT-TYPE
           SYNTAX      Integer32
           MAX-ACCESS  read-write
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       A value that uniquely identifies the set of
                       capabilities advertised by the local
                       auto-negotiation entity. Refer to
                       ifMauAutoNegCapability for a description of the
                       possible values of this object.

                       Capabilities in this object that are not
                       available in ifMauAutoNegCapability cannot be
                       enabled.

                       This object has been deprecated in favour of
                       ifMauAutoNegCapAdvertisedBits"
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.6,
                       aAutoNegAdvertisedTechnologyAbility."
           ::= { ifMauAutoNegEntry 6 }

       ifMauAutoNegCapReceived OBJECT-TYPE
           SYNTAX      Integer32
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       A value that uniquely identifies the set of
                       capabilities received from the remote
                       auto-negotiation entity. Refer to



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                       ifMauAutoNegCapability for a description of the
                       possible values of this object.

                       Note that interfaces that support this MIB may
                       be attached to remote auto-negotiation entities
                       which have capabilities beyond the scope of this
                       MIB.

                       This object has been deprecated in favour of
                       ifMauAutoNegCapReceivedBits"
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.7,
                       aAutoNegReceivedTechnologyAbility."
           ::= { ifMauAutoNegEntry 7 }

       ifMauAutoNegRestart OBJECT-TYPE
           SYNTAX      INTEGER {
                           restart(1),
                           norestart(2)
                       }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION "If the value of this object is set to
                       restart(1) then this will force auto-negotiation
                       to begin link renegotiation. If auto-negotiation
                       signaling is disabled, a write to this object
                       has no effect.

                       Setting the value of this object to norestart(2)
                       has no effect."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.2.1,
                       acAutoNegRestartAutoConfig."
           ::= { ifMauAutoNegEntry 8 }

       ifMauAutoNegCapabilityBits OBJECT-TYPE
           SYNTAX      BITS {
               bOther(0),        -- other or unknown
               b10baseT(1),      -- 10BASE-T  half duplex mode
               b10baseTFD(2),    -- 10BASE-T  full duplex mode
               b100baseT4(3),    -- 100BASE-T4
               b100baseTX(4),    -- 100BASE-TX half duplex mode
               b100baseTXFD(5),  -- 100BASE-TX full duplex mode
               b100baseT2(6),    -- 100BASE-T2 half duplex mode
               b100baseT2FD(7),  -- 100BASE-T2 full duplex mode
               bfdxPause(8),     -- PAUSE for full-duplex links
               bfdxAPause(9),    -- Asymmetric PAUSE for full-duplex
                                 --     links
               bfdxSPause(10),   -- Symmetric PAUSE for full-duplex
                                 --     links



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               bfdxBPause(11),   -- Asymmetric and Symmetric PAUSE for
                                 --     full-duplex links
               b1000baseX(12),   -- 1000BASE-X, -LX, -SX, -CX half
                                 --     duplex mode
               b1000baseXFD(13), -- 1000BASE-X, -LX, -SX, -CX full
                                 --     duplex mode
               b1000baseT(14),   -- 1000BASE-T half duplex mode
               b1000baseTFD(15)  -- 1000BASE-T full duplex mode
           }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A value that uniquely identifies the set of
                       capabilities of the local auto-negotiation
                       entity.  Note that interfaces that support this
                       MIB may have capabilities that extend beyond the
                       scope of this MIB.

                       Note that the local auto-negotiation entity may
                       support some capabilities beyond the scope of
                       this MIB.  This is indicated by returning the
                       bit value bOther in addition to any bit values
                       for capabilities that are listed above."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.5,
                       aAutoNegLocalTechnologyAbility."
           ::= { ifMauAutoNegEntry 9 }

       ifMauAutoNegCapAdvertisedBits OBJECT-TYPE
           SYNTAX      BITS {
               bOther(0),        -- other or unknown
               b10baseT(1),      -- 10BASE-T  half duplex mode
               b10baseTFD(2),    -- 10BASE-T  full duplex mode
               b100baseT4(3),    -- 100BASE-T4
               b100baseTX(4),    -- 100BASE-TX half duplex mode
               b100baseTXFD(5),  -- 100BASE-TX full duplex mode
               b100baseT2(6),    -- 100BASE-T2 half duplex mode
               b100baseT2FD(7),  -- 100BASE-T2 full duplex mode
               bFdxPause(8),     -- PAUSE for full-duplex links
               bFdxAPause(9),    -- Asymmetric PAUSE for full-duplex
                                 --     links
               bFdxSPause(10),   -- Symmetric PAUSE for full-duplex
                                 --     links
               bFdxBPause(11),   -- Asymmetric and Symmetric PAUSE for
                                 --     full-duplex links
               b1000baseX(12),   -- 1000BASE-X, -LX, -SX, -CX half
                                 --     duplex mode
               b1000baseXFD(13), -- 1000BASE-X, -LX, -SX, -CX full
                                 --     duplex mode
               b1000baseT(14),   -- 1000BASE-T half duplex mode



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               b1000baseTFD(15)  -- 1000BASE-T full duplex mode
           }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION "A value that uniquely identifies the set of
                       capabilities advertised by the local
                       auto-negotiation entity.

                       Capabilities in this object that are not
                       available in ifMauAutoNegCapabilityBits cannot
                       be enabled.

                       Note that the local auto-negotiation entity may
                       advertise some capabilities beyond the scope of
                       this MIB.  This is indicated by returning the
                       bit value bOther in addition to any bit values
                       for capabilities that are listed above."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.6,
                       aAutoNegAdvertisedTechnologyAbility."
           ::= { ifMauAutoNegEntry 10 }

       ifMauAutoNegCapReceivedBits OBJECT-TYPE
           SYNTAX      BITS {
                bOther(0),        -- other or unknown
                b10baseT(1),      -- 10BASE-T  half duplex mode
                b10baseTFD(2),    -- 10BASE-T  full duplex mode
                b100baseT4(3),    -- 100BASE-T4
                b100baseTX(4),    -- 100BASE-TX half duplex mode
                b100baseTXFD(5),  -- 100BASE-TX full duplex mode
                b100baseT2(6),    -- 100BASE-T2 half duplex mode
                b100baseT2FD(7),  -- 100BASE-T2 full duplex mode
                bFdxPause(8),     -- PAUSE for full-duplex links
                bFdxAPause(9),    -- Asymmetric PAUSE for full-duplex
                                  --     links
                bFdxSPause(10),   -- Symmetric PAUSE for full-duplex
                                  --     links
                bFdxBPause(11),   -- Asymmetric and Symmetric PAUSE for
                                  --     full-duplex links
                b1000baseX(12),   -- 1000BASE-X, -LX, -SX, -CX half
                                  --     duplex mode
                b1000baseXFD(13), -- 1000BASE-X, -LX, -SX, -CX full
                                  --     duplex mode
                b1000baseT(14),   -- 1000BASE-T half duplex mode
                b1000baseTFD(15)  -- 1000BASE-T full duplex mode
           }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A value that uniquely identifies the set of



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                       capabilities received from the remote
                       auto-negotiation entity.

                       Note that interfaces that support this MIB may
                       be attached to remote auto-negotiation entities
                       which have capabilities beyond the scope of this
                       MIB.  This is indicated by returning the bit
                       value bOther in addition to any bit values for
                       capabilities that are listed above."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.7,
                       aAutoNegReceivedTechnologyAbility."
           ::= { ifMauAutoNegEntry 11 }

       ifMauAutoNegRemoteFaultAdvertised OBJECT-TYPE
           SYNTAX      INTEGER {
                           noError(1),
                           offline(2),
                           linkFailure(3),
                           autoNegError(4)
                       }
           MAX-ACCESS  read-write
           STATUS      current
           DESCRIPTION "A value that identifies any local fault
                       indications that this MAU has detected and will
                       advertise at the next auto-negotiation
                       interaction for 1000Mbps MAUs."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.6,
                       aAutoNegAdvertisedTechnologyAbility."
           ::= { ifMauAutoNegEntry 12 }

       ifMauAutoNegRemoteFaultReceived OBJECT-TYPE
           SYNTAX      INTEGER {
                           noError(1),
                           offline(2),
                           linkFailure(3),
                           autoNegError(4)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "A value that identifies any fault indications
                       received from the far end of a link by the
                       local auto-negotiation entity for 1000Mbps
                       MAUs."
           REFERENCE   "[IEEE 802.3 Std], 30.6.1.1.7,
                       aAutoNegReceivedTechnologyAbility."
           ::= { ifMauAutoNegEntry 13 }





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       --
       -- The Basic Broadband MAU Table
       --

       broadMauBasicTable OBJECT-TYPE
           SYNTAX      SEQUENCE OF BroadMauBasicEntry
           MAX-ACCESS  not-accessible
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       Table of descriptive and status information
                       about the broadband MAUs connected to
                       interfaces."
           ::= { dot3BroadMauBasicGroup 1 }

       broadMauBasicEntry OBJECT-TYPE
           SYNTAX      BroadMauBasicEntry
           MAX-ACCESS  not-accessible
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       An entry in the table, containing information
                       about a single broadband MAU."
           INDEX       { broadMauIfIndex,
                         broadMauIndex
                       }
           ::= { broadMauBasicTable 1 }

       BroadMauBasicEntry ::=
           SEQUENCE {
               broadMauIfIndex                     InterfaceIndex,
               broadMauIndex                       Integer32,
               broadMauXmtRcvSplitType             INTEGER,
               broadMauXmtCarrierFreq              Integer32,
               broadMauTranslationFreq             Integer32
           }

       broadMauIfIndex OBJECT-TYPE
           SYNTAX      InterfaceIndex
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       This variable uniquely identifies the interface
                       to which the MAU described by this entry is
                       connected."
           REFERENCE   "Reference RFC 2863, ifIndex."
           ::= { broadMauBasicEntry 1 }



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       broadMauIndex OBJECT-TYPE
           SYNTAX      Integer32 (1..2147483647)
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       This variable uniquely identifies the MAU
                       connected to interface broadMauIfIndex that is
                       described by this entry."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.1, aMAUID."
           ::= { broadMauBasicEntry 2 }

       broadMauXmtRcvSplitType OBJECT-TYPE
           SYNTAX      INTEGER {
                           other(1),
                           single(2),
                           dual(3)
                       }
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       This object indicates the type of frequency
                       multiplexing/cabling system used to separate the
                       transmit and receive paths for the 10BROAD36
                       MAU.

                       The value other(1) is returned if the split type
                       is not either single or dual.

                       The value single(2) indicates a single cable
                       system.  The value dual(3) indicates a dual
                       cable system, offset normally zero."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.8,
                       aBbMAUXmitRcvSplitType."
           ::= { broadMauBasicEntry 3 }

       broadMauXmtCarrierFreq OBJECT-TYPE
           SYNTAX      Integer32
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       This variable indicates the transmit carrier
                       frequency of the 10BROAD36 MAU in MHz/4; that
                       is, in units of 250 kHz."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.9,
                       aBroadbandFrequencies.xmitCarrierFrequency."



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           ::= { broadMauBasicEntry 4 }

       broadMauTranslationFreq OBJECT-TYPE
           SYNTAX      Integer32
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "********* THIS OBJECT IS DEPRECATED **********

                       This variable indicates the translation offset
                       frequency of the 10BROAD36 MAU in MHz/4; that
                       is, in units of 250 kHz."
           REFERENCE   "[IEEE 802.3 Std], 30.5.1.1.9,
                       aBroadbandFrequencies.translationFrequency."
           ::= { broadMauBasicEntry 5 }



       -- Notifications for use by 802.3 MAUs

       snmpDot3MauTraps OBJECT IDENTIFIER ::= { snmpDot3MauMgt 0 }

       rpMauJabberTrap NOTIFICATION-TYPE
           OBJECTS     { rpMauJabberState }
           STATUS      current
           DESCRIPTION "This trap is sent whenever a managed repeater
                       MAU enters the jabber state.

                       The agent MUST throttle the generation of
                       consecutive rpMauJabberTraps so that there is at
                       least a five-second gap between them."
           REFERENCE   "[IEEE 802.3 Mgt], 30.5.1.3.1, nJabber
                       notification."
           ::= { snmpDot3MauTraps 1 }

       ifMauJabberTrap NOTIFICATION-TYPE
           OBJECTS     { ifMauJabberState }
           STATUS      current
           DESCRIPTION "This trap is sent whenever a managed interface
                       MAU enters the jabber state.

                       The agent MUST throttle the generation of
                       consecutive ifMauJabberTraps so that there is at
                       least a five-second gap between them."
           REFERENCE   "[IEEE 802.3 Mgt], 30.5.1.3.1, nJabber
                       notification."
           ::= { snmpDot3MauTraps 2 }





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       -- Conformance information

       mauModConf
               OBJECT IDENTIFIER ::= { mauMod 1 }
         mauModCompls
               OBJECT IDENTIFIER ::= { mauModConf 1 }
         mauModObjGrps
               OBJECT IDENTIFIER ::= { mauModConf 2 }
         mauModNotGrps
               OBJECT IDENTIFIER ::= { mauModConf 3 }


       -- Object groups

       mauRpGrpBasic OBJECT-GROUP
           OBJECTS     { rpMauGroupIndex,
                         rpMauPortIndex,
                         rpMauIndex,
                         rpMauType,
                         rpMauStatus,
                         rpMauMediaAvailable,
                         rpMauMediaAvailableStateExits,
                         rpMauJabberState,
                         rpMauJabberingStateEnters
                       }
           STATUS      current
           DESCRIPTION "Basic conformance group for MAUs attached to
                       repeater ports.  This group is also the
                       conformance specification for RFC 1515
                       implementations."
           ::= { mauModObjGrps 1 }

       mauRpGrp100Mbs OBJECT-GROUP
           OBJECTS     { rpMauFalseCarriers }
           STATUS      current
           DESCRIPTION "Conformance group for MAUs attached to
                       repeater ports with 100 Mb/s or greater
                       capability."
           ::= { mauModObjGrps 2 }

       mauRpGrpJack OBJECT-GROUP
           OBJECTS     { rpJackType }
           STATUS      current
           DESCRIPTION "Conformance group for MAUs attached to
                       repeater ports with managed jacks."
           ::= { mauModObjGrps 3 }

       mauIfGrpBasic OBJECT-GROUP



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           OBJECTS     { ifMauIfIndex,
                         ifMauIndex,
                         ifMauType,
                         ifMauStatus,
                         ifMauMediaAvailable,
                         ifMauMediaAvailableStateExits,
                         ifMauJabberState,
                         ifMauJabberingStateEnters
                       }
           STATUS      current
           DESCRIPTION "Basic conformance group for MAUs attached to
                       interfaces.  This group also provides a
                       conformance specification for RFC 1515
                       implementations."
           ::= { mauModObjGrps 4 }

       mauIfGrp100Mbs OBJECT-GROUP
           OBJECTS     { ifMauFalseCarriers,
                         ifMauTypeList,
                         ifMauDefaultType,
                         ifMauAutoNegSupported
                       }
           STATUS      deprecated
           DESCRIPTION "********* THIS GROUP IS DEPRECATED **********

                       Conformance group for MAUs attached to
                       interfaces with 100 Mb/s capability.

                       This object group has been deprecated in favor
                       of mauIfGrpHighCapacity."
           ::= { mauModObjGrps 5 }

       mauIfGrpJack OBJECT-GROUP
           OBJECTS     { ifJackType }
           STATUS      current
           DESCRIPTION "Conformance group for MAUs attached to
                       interfaces with managed jacks."
           ::= { mauModObjGrps 6 }

       mauIfGrpAutoNeg OBJECT-GROUP
           OBJECTS     { ifMauAutoNegAdminStatus,
                         ifMauAutoNegRemoteSignaling,
                         ifMauAutoNegConfig,
                         ifMauAutoNegCapability,
                         ifMauAutoNegCapAdvertised,
                         ifMauAutoNegCapReceived,
                         ifMauAutoNegRestart
                       }



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           STATUS      deprecated
           DESCRIPTION "********* THIS GROUP IS DEPRECATED **********

                       Conformance group for MAUs attached to
                       interfaces with managed auto-negotiation.

                       This object group has been deprecated in favor
                       of mauIfGrpAutoNeg2."
           ::= { mauModObjGrps 7 }

       mauBroadBasic OBJECT-GROUP
           OBJECTS     { broadMauIfIndex,
                         broadMauIndex,
                         broadMauXmtRcvSplitType,
                         broadMauXmtCarrierFreq,
                         broadMauTranslationFreq
                       }
           STATUS      deprecated
           DESCRIPTION "********* THIS GROUP IS DEPRECATED **********

                       Conformance group for broadband MAUs attached
                       to interfaces.

                       This object group is deprecated.  There have
                       been no reported implementations of this group,
                       and it was felt to be unlikely that there will
                       be any future implementations."
           ::= { mauModObjGrps 8 }

       mauIfGrpHighCapacity OBJECT-GROUP
           OBJECTS     { ifMauFalseCarriers,
                         ifMauTypeListBits,
                         ifMauDefaultType,
                         ifMauAutoNegSupported
                       }
           STATUS      current
           DESCRIPTION "Conformance group for MAUs attached to
                       interfaces with 100 Mb/s or greater capability."
           ::= { mauModObjGrps 9 }

       mauIfGrpAutoNeg2 OBJECT-GROUP
           OBJECTS     { ifMauAutoNegAdminStatus,
                         ifMauAutoNegRemoteSignaling,
                         ifMauAutoNegConfig,
                         ifMauAutoNegCapabilityBits,
                         ifMauAutoNegCapAdvertisedBits,
                         ifMauAutoNegCapReceivedBits,
                         ifMauAutoNegRestart



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                       }
           STATUS      current
           DESCRIPTION "Conformance group for MAUs attached to
                       interfaces with managed auto-negotiation."
           ::= { mauModObjGrps 10 }

       mauIfGrpAutoNeg1000Mbps OBJECT-GROUP
           OBJECTS     { ifMauAutoNegRemoteFaultAdvertised,
                         ifMauAutoNegRemoteFaultReceived
                       }
           STATUS      current
           DESCRIPTION "Conformance group for 1000Mbps MAUs attached to
                       interfaces with managed auto-negotiation."
           ::= { mauModObjGrps 11 }

       mauIfGrpHCStats OBJECT-GROUP
           OBJECTS     { ifMauHCFalseCarriers }
           STATUS      current
           DESCRIPTION "Conformance for high capacity statistics for
                       MAUs attached to interfaces"
           ::= { mauModObjGrps 12 }


       -- Notification groups

       rpMauNotifications NOTIFICATION-GROUP
           NOTIFICATIONS { rpMauJabberTrap }
           STATUS      current
           DESCRIPTION "Notifications for repeater MAUs."
           ::= { mauModNotGrps 1 }

       ifMauNotifications NOTIFICATION-GROUP
           NOTIFICATIONS { ifMauJabberTrap }
           STATUS      current
           DESCRIPTION "Notifications for interface MAUs."
           ::= { mauModNotGrps 2 }


       -- Compliances

       mauModRpCompl MODULE-COMPLIANCE
           STATUS      deprecated
           DESCRIPTION "******** THIS COMPLIANCE IS DEPRECATED ********

                       Compliance for MAUs attached to repeater
                       ports.

                       This compliance is deprecated and replaced by



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                       mauModRpCompl2, which corrects an oversight by
                       allowing rpMauStatus to be implemented
                       read-only."

           MODULE -- this module
               MANDATORY-GROUPS { mauRpGrpBasic }

               GROUP       mauRpGrp100Mbs
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have 100Mb/s or
                           greater capability."

               GROUP       mauRpGrpJack
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have one or more
                           external jacks."

               GROUP       rpMauNotifications
               DESCRIPTION "Implementation of this group is recommended
                           for MAUs attached to repeater ports."
           ::= { mauModCompls 1 }


       mauModIfCompl MODULE-COMPLIANCE
           STATUS      deprecated
           DESCRIPTION "******** THIS COMPLIANCE IS DEPRECATED ********

                       Compliance for MAUs attached to interfaces.

                       This compliance is deprecated and replaced by
                       mauModIfCompl2."

           MODULE -- this module
               MANDATORY-GROUPS { mauIfGrpBasic }

               GROUP       mauIfGrp100Mbs
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have 100Mb/s
                           capability."

               GROUP       mauIfGrpJack
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have one or more
                           external jacks."

               GROUP       mauIfGrpAutoNeg
               DESCRIPTION "Implementation of this group is mandatory
                           for MAUs which support managed



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                           auto-negotiation."

               GROUP       mauBroadBasic
               DESCRIPTION "Implementation of this group is mandatory
                           for broadband MAUs."

               GROUP       ifMauNotifications
               DESCRIPTION "Implementation of this group is recommended
                           for MAUs attached to interfaces."
           ::= { mauModCompls 2 }

       mauModIfCompl2 MODULE-COMPLIANCE
           STATUS      deprecated
           DESCRIPTION "******** THIS COMPLIANCE IS DEPRECATED ********

                       Compliance for MAUs attached to interfaces."

           MODULE -- this module
               MANDATORY-GROUPS { mauIfGrpBasic }

               GROUP       mauIfGrpHighCapacity
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have 100Mb/s
                           or greater capability."

               GROUP       mauIfGrpJack
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have one or more
                           external jacks."

               GROUP       mauIfGrpAutoNeg2
               DESCRIPTION "Implementation of this group is mandatory
                           for MAUs which support managed
                           auto-negotiation."

               GROUP       mauIfGrpAutoNeg1000Mbps
               DESCRIPTION "Implementation of this group is mandatory
                           for MAUs which have 1000Mb/s or greater
                           capability and support managed
                           auto-negotiation."

               GROUP       ifMauNotifications
               DESCRIPTION "Implementation of this group is recommended
                           for MAUs attached to interfaces."

               OBJECT      ifMauStatus
               MIN-ACCESS  read-only
               DESCRIPTION "Write access is not required."



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           ::= { mauModCompls 3 }

       mauModRpCompl2 MODULE-COMPLIANCE
           STATUS      current
           DESCRIPTION "Compliance for MAUs attached to repeater
                       ports."

           MODULE -- this module
               MANDATORY-GROUPS { mauRpGrpBasic }

               GROUP       mauRpGrp100Mbs
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have 100Mb/s or
                           greater capability."

               GROUP       mauRpGrpJack
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have one or more
                           external jacks."

               GROUP       rpMauNotifications
               DESCRIPTION "Implementation of this group is recommended
                           for MAUs attached to repeater ports."

               OBJECT      rpMauStatus
               MIN-ACCESS  read-only
               DESCRIPTION "Write access is not required."
           ::= { mauModCompls 4 }

       mauModIfCompl3 MODULE-COMPLIANCE
           STATUS      current
           DESCRIPTION "Compliance for MAUs attached to interfaces."

           MODULE -- this module
               MANDATORY-GROUPS { mauIfGrpBasic }

               GROUP       mauIfGrpHighCapacity
               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have 100Mb/s
                           or greater capability."

               GROUP       mauIfGrpHCStats
               DESCRIPTION "Implemention of this group is mandatory
                           for MAUs which have 1000Mb/s capacity, and
                           is recommended for MAUs which have 100Mb/s
                           capacity."

               GROUP       mauIfGrpJack



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               DESCRIPTION "Implementation of this optional group is
                           recommended for MAUs which have one or more
                           external jacks."

               GROUP       mauIfGrpAutoNeg2
               DESCRIPTION "Implementation of this group is mandatory
                           for MAUs which support managed
                           auto-negotiation."

               GROUP       mauIfGrpAutoNeg1000Mbps
               DESCRIPTION "Implementation of this group is mandatory
                           for MAUs which have 1000Mb/s or greater
                           capability and support managed
                           auto-negotiation."

               GROUP       ifMauNotifications
               DESCRIPTION "Implementation of this group is recommended
                           for MAUs attached to interfaces."

               OBJECT      ifMauStatus
               MIN-ACCESS  read-only
               DESCRIPTION "Write access is not required."
           ::= { mauModCompls 5 }

   END


5.  Intellectual Property

   The IETF takes no position regarding the validity or scope of any
   intellectual property or other rights that might be claimed to
   pertain to the implementation or use of the technology described in
   this document or the extent to which any license under such rights
   might or might not be available; neither does it represent that it
   has made any effort to identify any such rights.  Information on the
   IETF's procedures with respect to rights in standards-track and
   standards-related documentation can be found in BCP-11.  Copies of
   claims of rights made available for publication and any assurances of
   licenses to be made available, or the result of an attempt made to
   obtain a general license or permission for the use of such
   proprietary rights by implementors or users of this specification can
   be obtained from the IETF Secretariat.

   The IETF invites any interested party to bring to its attention any
   copyrights, patents or patent applications, or other proprietary
   rights which may cover technology that may be required to practice
   this standard.  Please address the information to the IETF Executive
   Director.



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6.  Acknowledgements

   This document was produced by the IETF Ethernet Interfaces and Hub
   MIB Working Group, whose efforts were greatly advanced by the
   contributions of the following people:

       Mike Ayers
       Mike Heard
       Chuck Black
       John Flick
       Jeff Johnson
       Kam Lam
       Leon Leong
       Mike Lui
       Kerry McDonald
       K.C. Norseth
       Dave Perkins
       Dan Romascanu
       Andrew Smith
       Kaj Tesink
       Geoff Thompson
       Maurice Turcotte
       Paul Woodruff


7.  References

   Normative References

   [RFC2578]    McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
                J., Rose, M. and S. Waldbusser, "Structure of Management
                Information Version 2 (SMIv2)", STD 58, RFC 2578, April
                1999.

   [RFC2579]    McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
                J., Rose, M. and S. Waldbusser, "Textual Conventions for
                SMIv2", STD 58, RFC 2579, April 1999.

   [RFC2580]    McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
                J., Rose, M. and S. Waldbusser, "Conformance Statements
                for SMIv2", STD 58, RFC 2580, April 1999.

   [IEEE802.3]  IEEE, IEEE Std 802.3, 2000 Edition: "Information
                technology - Telecommunications and information exchange
                between systems - Local and metropolitan area networks -
                Specific requirements - Part 3: Carrier sense multiple
                access with collision detection (CSMA/CD) access method
                and physical layer specifications", (Adopted by ISO/IEC



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                and redesignated as ISO/IEC 8802-3:2000(E), 2000.

   [P802.3ae]   Law, D., Editor, Draft Supplement to IEEE Std. 802.3,
                IEEE Draft P802.3ae/D4.3, April 2002, work in
                progress.

   [RFC2863]    McCloghrie, K. and F. Kastenholz, "The Interfaces Group
                MIB using SMIv2", RFC 2863, June 2000.

   [RFC2108]    de Graaf, K., D. Romascanu, D. McMaster, and K.
                McCloghrie, "Definitions of Managed Objects for IEEE
                802.3 Repeater Devices using SMIv2", RFC 2108, February
                1997.

   [ETHERIF]    Flick, J., "Definitions of Managed Objects for the
                Ethernet-like Interface Types", work in progress,
                draft-ietf-hubmib-etherif-mib-v3-02.txt, May, 2002.

   Non-Normative References

   [RFC2571]    Harrington, D., Presuhn, R. and B. Wijnen, "An
                Architecture for Describing SNMP Management Frameworks",
                RFC 2571, April 1999.

   [RFC1155]    Rose, M. and K. McCloghrie, "Structure and
                Identification of Management Information for
                TCP/IP-based Internets", STD 16, RFC 1155, May 1990.

   [RFC1212]    Rose, M. and K. McCloghrie, "Concise MIB Definitions",
                STD 16, RFC 1212, March 1991.

   [RFC1215]    Rose, M., "A Convention for Defining Traps for use with
                the SNMP", RFC 1215, March 1991.

   [RFC1157]    Case, J., Fedor, M., Schoffstall, M. and J. Davin,
                "Simple Network Management Protocol", STD 15, RFC 1157,
                May 1990.

   [RFC1901]    Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
                "Introduction to Community-based SNMPv2", RFC 1901,
                January 1996.

   [RFC1906]    Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
                "Transport Mappings for Version 2 of the Simple Network
                Management Protocol (SNMPv2)", RFC 1906, January 1996.

   [RFC2572]    Case, J., Harrington, D., Presuhn R. and B. Wijnen,
                "Message Processing and Dispatching for the Simple



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                Network Management Protocol (SNMP)", RFC 2572, May 1999.

   [RFC2574]    Blumenthal, U. and B. Wijnen, "User-based Security Model
                (USM) for version 3 of the Simple Network Management
                Protocol (SNMPv3)", RFC 2574, May 1999.

   [RFC1905]    Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
                "Protocol Operations for Version 2 of the Simple Network
                Management Protocol (SNMPv2)", RFC 1905, January 1996.

   [RFC2573]    Levi, D., Meyer, P. and B. Stewart, "SNMPv3
                Applications", RFC 2573, May 1999.

   [RFC2575]    Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based
                Access Control Model (VACM) for the Simple Network
                Management Protocol (SNMP)", RFC 2575, May 1999.

   [RFC2570]    Case, J., Mundy, R., Partain, D. and B. Stewart,
                "Introduction to Version 3 of the Internet-Standard
                Network Management Framework", RFC 2570, April 1999.

   [RFC2119]    Bradner, S., "Key words for use in RFCs to Indicate
                Requirements Levels", BCP 14, RFC 2119, March 1997.

   [RFC1907]    Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
                "Management Information Base for Version 2 of the
                Simple Network Management Protocol (SNMPv2)", RFC 1907,
                January 1996.

   [RFC2668]    Smith, A., Flick, J., deGraaf, K., Romascanu, D.,
                McMaster, D., McCloghrie, K. and S. Roberts,
                "Definitions of Managed Objects for IEEE 802.3 Medium
                Attachment Units (MAUs)", RFC 2668, August 1999.

   [RFC2239]    de Graaf, K., Romascanu, D., McMaster, D., McCloghrie,
                K. and S. Roberts, "Definitions of Managed Objects for
                IEEE 802.3 Medium Attachment Units (MAUs) using SMIv2",
                RFC 2239, November 1997.

   [RFC1515]    McMaster, D., McCloghrie, K. and  S. Roberts,
                "Definitions of Managed Objects for IEEE 802.3 Medium
                Attachment Units (MAUs)", RFC 1515, September 1993.

   [ETHERWIS]   Ayers, M., Flick, J., Heard, C. M., Lam, K., McDonald,
                K., Norseth, K. C., and K. Tesink, "Definitions of
                Managed Objects for the Ethernet WAN Interface
                Sublayer", work in progress,
                draft-ietf-hubmib-wis-mib-04.txt, May 2002.



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8.  Security Considerations

   There are a number of management objects defined in this MIB that
   have a MAX-ACCESS clause of read-write. Setting these objects can
   have a serious effect on the operation of the network, including:

        enabling or disabling a MAU
        changing a MAU's default type
        enabling, disabling or restarting autonegotiation
        modifying the capabilities that a MAU advertizes during
            autonegotiation.

   Such objects may be considered sensitive or vulnerable in some
   network environments.  The support for SET operations in a non-secure
   environment without proper protection can have a negative effect on
   network operations.

   SNMPv1 by itself is such an insecure environment.  Even if the
   network itself is secure (for example by using IPSec), even then,
   there is no control as to who on the secure network is allowed to
   access and GET/SET (read/change/create/delete) the objects in this
   MIB.

   It is recommended that the implementers consider the security
   features as provided by the SNMPv3 framework.  Specifically, the use
   of the User-based Security Model RFC 2574 [RFC2574] and the View-
   based Access Control Model RFC 2575 [RFC2575] is recommended.

   It is then a customer/user responsibility to ensure that the SNMP
   entity giving access to an instance of this MIB, is properly
   configured to give access to those objects only to those principals
   (users) that have legitimate rights to access them.


9.  Authors' Addresses

   John Flick
   Hewlett-Packard Company
   8000 Foothills Blvd. M/S 5557
   Roseville, CA 95747-5557
   Phone: +1 916 785 4018
   E-mail: johnf@rose.hp.com


A.  Change Log

A.1.  Changes since RFC 2668




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   This section enumerates changes made to RFC 2668 to produce this
   document.

      (1)   Updated references to the IEEE 802.3 standard to
            refer to the 2000 edition.

      (2)   Added reference to 802.3ae.

      (3)   Updated WG e-mail address.

      (4)   The following DESCRIPTION clauses have been updated
            to reflect behaviour on 10 Gb/s interfaces:
            ifMauMediaAvailable.

      (5)   OBJECT-IDENTITY definitions have been added for 10 gigabit
            MAU types.

      (6)   Enumerations for 'pmdLinkFault', 'wisFrameLoss',
            'wisSignalLoss', pcsLinkFault', excessiveBER',
            'dxsLinkFault' and 'pxsLinkFault' have been
            added for the ifMauMediaAvailable object.

      (7)   ifMauTypeListBits has been extended with bits for the
            10 Gb/s MAU types.

      (8)   The MODULE-IDENTITY clause has been updated to
            reflect the changes in the MIB module.

      (9)   MIB boilerplate in section 2 has been updated to the
            latest approved text.

      (10)  Added 64-bit version of ifMauFalseCarriers, and updated
            compliances accordingly.

      (11)  Added section on mapping of IEEE managed objects to the
            objects in this MIB module.


A.2.  Changes between RFC 2239 and RFC 2668


   This section enumerates the changes made to RFC 2239 to produce RFC
   2668.

      (1)   The MODULE-IDENTITY has been updated to reflect the changes
            in the MIB.

      (2)   OBJECT-IDENTITY definitions have been added for gigabit MAU



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            types.

      (3)   The ifMauTypeList, ifMauAutoNegCapability,
            ifMauAutoNegCapAdvertised and ifMauAutoNegCapReceived
            objects have been deprecated and replaced by
            ifMauTypeListBits, ifMauAutoNegCapabilityBits,
            ifMauAutoNegCapAdvertisedBits and
            ifMauAutoNegCapReceivedBits.

      (4)   Two new objects, ifMauAutoNegRemoteFaultAdvertised and
            ifMauAutoNegRemoteFaultReceived have been added.

      (5)   Enumerations for 'offline' and 'autoNegError' have been
            added for the rpMauMediaAvailable and ifMauMediaAvailable
            objects.

      (6)   The broadMauBasicTable and mauBroadBasic object group have
            been deprecated.

      (7)   The mauIfGrp100Mbs and mauIfGrpAutoNeg object groups have
            been deprecated and replaced by mauIfGrpHighCapacity and
            mauIfGrpAutoNeg2.

      (8)   A new object group, mauIfGrpAutoNeg1000Mbps, has been added.

      (9)   The mauModIfCompl and mauModRpCompl compliances have been
            deprecated and replaced by mauModIfCompl2 and
            mauModRpCompl2.

      (10)  Added section on relationship to RFC 2239.

      (11)  Updated the SNMP Network Management Framework boilerplate.

      (12)  Refer to the Interfaces MIB, rather than the interfaces
            group of MIB-II.

      (13)  Updated references to refer to latest edition of IEEE 802.3.

      (14)  An intellectual property notice was added, as required by
            RFC 2026.


B.  Full Copyright Statement

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it



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   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.






























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