RFC2668

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Network Working Group A. Smith Request for Comments: 2668 Extreme Networks, Inc. Obsoletes: 2239 J. Flick Category: Standards Track Hewlett-Packard Company

                                                         K. de Graaf
                                                      Argon Networks
                                                        D. Romascanu
                                                 Lucent Technologies
                                                         D. McMaster
                                                 Cisco Systems, Inc.
                                                       K. McCloghrie
                                                 Cisco Systems, Inc.
                                                          S. Roberts
                                            Farallon Computing, Inc.
                                                         August 1999
               Definitions of Managed Objects for
           IEEE 802.3 Medium Attachment Units (MAUs)

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1999). 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 2239, "Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs) using SMIv2". This memo extends that specification by including management information useful for the management of 1000 Mb/s 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.

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 2239 [21].

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 [20].

The SNMP Management Framework

The SNMP Management Framework presently consists of five major components:

o   An overall architecture, described in RFC 2571 [1].
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 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The
    second version, called SMIv2, is described in STD 58, RFC 2578
    [5], STD 58, RFC 2579 [6] and STD 58, RFC 2580 [7].
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 [8]. A second version of the SNMP
    message protocol, which is not an Internet standards track
    protocol, is called SNMPv2c and described in RFC 1901 [9] and RFC
    1906 [10].  The third version of the message protocol is called
    SNMPv3 and described in RFC 1906 [10], RFC 2572 [11] and RFC 2574
    [12].
o   Protocol operations for accessing management information. The
    first set of protocol operations and associated PDU formats is
    described in STD 15, RFC 1157 [8]. A second set of protocol
    operations and associated PDU formats is described in RFC 1905
    [13].
o   A set of fundamental applications described in RFC 2573 [14] and
    the view-based access control mechanism described in RFC 2575
    [15].

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.

Overview

Relationship to RFC 2239

This MIB is intended to be a superset of that defined by RFC 2239 [21], which will go to historic status. This MIB includes all of the objects contained in that MIB, plus several new ones which provide 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 objects provide management support for:

o management of 1000 Mb/s devices

o management of PAUSE negotiation

o management of remote fault status

Relationship to RFC 1515

RFC 2239 was a replacement for RFC 1515 [22], 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

MAU Management

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 [16]. 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, 100 & 1000 Mb/s Medium Attachment Units (MAUs)", and Annex 30A, "GDMO Specifications for 802.3 managed object classes" of IEEE Std. 802.3, 1998 edition [16]. That specification includes definitions for 10Mb/s, 100Mb/s and 1000Mb/s devices. This specification is intended to serve the same purpose: to provide for management of all types of Ethernet/802.3 MAUs.

Relationship to Other MIBs

It is assumed that an agent implementing this MIB will also implement (at least) the 'system' group defined in MIB-II [18]. The following sections identify other MIBs that such an agent should implement.

Relationship to the Interfaces MIB.

The sections of this document that define interface MAU-related objects specify an extension to the Interfaces MIB [19]. 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 expected that an agent implementing the interface-MAU related objects in this MIB will also implement the Ethernet-like Interfaces MIB, [23].

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

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 [17]. 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.

Management of Internal MAUs

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

Definitions

MAU-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       Counter32, Integer32,
       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;
   mauMod MODULE-IDENTITY
       LAST-UPDATED "9908240400Z"  -- August 24, 1999
       ORGANIZATION "IETF Ethernet Interfaces and Hub MIB
                    Working Group"
       CONTACT-INFO
           "WG E-mail: [email protected]
         To subscribe: [email protected]
                Chair: Dan Romascanu
               Postal: Lucent Technologies
                       Atidim Technology Park, Bldg. 3
                       Tel Aviv 61131
                       Israel
                  Tel: +972 3 645 8414, 6458458
                  Fax: +972 3 648 7146
               E-mail: [email protected]
              Editors: Andrew Smith
               Postal: Extreme Networks, Inc.
                       10460 Bandley Drive
                       Cupertino, CA 95014
                       USA
                  Tel: +1 408 579-2821
               E-mail: [email protected]
                       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: [email protected]
                      Kathryn de Graaf
              Postal: Argon Networks
                      25 Porter Road
                      Littleton, MA  01460
                      USA
                 Tel: +1 978 486 0665 x163
                 Fax: +1 978 486 9379
              E-mail: [email protected]"
      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, 1998 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',
                     September 1998.
                  Of particular interest is Clause 30, '10Mb/s,
                  100Mb/s and 1000Mb/s Management'."
      REVISION    "9908240400Z" -- August 24, 1999
      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 "This version published as RFC 2239."
      REVISION    "9309300000Z" -- September 30, 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
                  }
  dot3RpMauBasicGroup
      OBJECT IDENTIFIER ::= { snmpDot3MauMgt 1 }
  dot3IfMauBasicGroup
      OBJECT IDENTIFIER ::= { snmpDot3MauMgt 2 }
  dot3BroadMauBasicGroup
      OBJECT IDENTIFIER ::= { snmpDot3MauMgt 3 }
  dot3IfMauAutoNegGroup
      OBJECT IDENTIFIER ::= { snmpDot3MauMgt 5 }
  -- 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
      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 }
  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"
      ::= { 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"
      ::= { dot3MauType 30 }
  --
  -- 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,
          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
      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
                  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
      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
                  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),
                      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
                  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 ::=
      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 {
          ifMauIfIndex                        Integer32,
          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
      }
  ifMauIfIndex OBJECT-TYPE
      SYNTAX      Integer32 (1..2147483647)
      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 1213, 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 }
                  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.
                  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)
                  }
      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 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
                  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)."
      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 2233, 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
                  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 dot1MauTypeAUI
                  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 2233, 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.
                  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 2233, 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
                  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."
      ::= { 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
      }
      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 }
  -- 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."
      ::= { 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
      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
      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
                   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
                  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
          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
          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
                  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 }
  --
  -- 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                     Integer32,
          broadMauIndex                       Integer32,
          broadMauXmtRcvSplitType             INTEGER,
          broadMauXmtCarrierFreq              Integer32,
          broadMauTranslationFreq             Integer32
      }
  broadMauIfIndex OBJECT-TYPE
      SYNTAX      Integer32 (1..2147483647)
      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 1213, ifIndex."
      ::= { broadMauBasicEntry 1 }
  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."
      ::= { 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 }
  -- 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
      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
                  }
      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
                  }
      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 }
  -- 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
                  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
                      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      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       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."
      ::= { 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 }

END

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.

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:

   Chuck Black
   John Flick
   Jeff Johnson
   Leon Leong
   Mike Lui
   Dave Perkins
   Geoff Thompson
   Maurice Turcotte
   Paul Woodruff

Special thanks as well to Dave Perkins for his excellent work on the SMICng compiler, which made it easy to take advantage of the latest SNMPv2 constructs in this MIB.

References

[1] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for
    Describing SNMP Management Frameworks", RFC 2571, May 1999.
[2] Rose, M. and K. McCloghrie, "Structure and Identification of
    Management Information for TCP/IP-based Internets", STD 16, RFC
    1155, May 1990.
[3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,
    RFC 1212, March 1991.
[4] Rose, M., "A Convention for Defining Traps for use with the
    SNMP", RFC 1215, March 1991.
[5] 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.
[6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
    M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,
    RFC 2579, April 1999.
[7] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
    M. and S. Waldbusser, "Conformance Statements for SMIv2", STD
    58, RFC 2580, April 1999.
[8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
    Network Management Protocol", STD 15, RFC 1157, May 1990.
[9] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
    "Introduction to Community-based SNMPv2", RFC 1901, January
    1996.

[10] 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.

[11] Case, J., Harrington, D., Presuhn, R. and B. Wijnen, "Message

    Processing and Dispatching for the Simple Network Management
    Protocol (SNMP)", RFC 2572, May 1999.

[12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)

    for version 3 of the Simple Network Management Protocol
    (SNMPv3)", RFC 2574, May 1999.

[13] 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.

[14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC

    2573, May 1999.

[15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access

    Control Model (VACM) for the Simple Network Management Protocol
    (SNMP)", RFC 2575, May 1999.

[16] IEEE, IEEE Std 802.3, 1998 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"
    (incorporating ANSI/IEEE Std. 802.3, 1996 Edition, IEEE Std.
    802.3r-1996, 802.3u-1995, 802.3x&y-1997, 802.3z-1998, and
    802.3aa-1998), September 1998.

[17] de Graaf, K., Romascanu, D., McMaster, D. and K. McCloghrie,

    "Definitions of Managed Objects for IEEE 802.3 Repeater Devices
    using SMIv2", RFC 2108, February 1997.

[18] McCloghrie, K. and M. Rose, Editors, "Management Information

    Base for Network Management of TCP/IP-based internets: MIB-II",
    STD 17, RFC 1213, March 1991.

[19] McCloghrie, K. and F. Kastenholtz, "The Interfaces Group MIB

    using SMIv2", RFC 2233, November 1997.

[20] Bradner, S., "Key words for use in RFCs to Indicate Requirements

    Levels", BCP 14, RFC 2119, March 1997.

[21] 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.

[22] McMaster, D., McCloghrie, K. and S. Roberts, "Definitions of

    Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs)",
    RFC 1515, September 1993.

[23] Flick, J. and J. Johnson, "Definitions of Managed Objects for

    the Ethernet-like Interface Types", RFC 2665, August 1999.

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 [12] and the View-based Access Control Model RFC 2575 [15] 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.

Authors' Addresses

Andrew Smith Extreme Networks, Inc. 3585 Monroe St. Santa Clara, CA 95051 USA

Phone: +1 408 579-2821 EMail: [email protected]

John Flick Hewlett-Packard Company 8000 Foothills Blvd. M/S 5557 Roseville, CA 95747-5557

Phone: +1 916 785 4018 EMail: [email protected]

Kathryn de Graaf Argon Networks 25 Porter Road Littleton, MA 01460 USA

Phone: +1 978 486 0665 x163 Fax: +1 978 486 9379 EMail: [email protected]

Dan Romascanu Lucent Technologies Atidim Technology Park, Bldg. 3 Tel Aviv 61131 Israel

Phone: 972 3 645 8414, 6458458 Fax: 972 3 648 7146 EMail: [email protected]

Donna McMaster Cisco Systems Inc. 170 West Tasman Drive San Jose, CA 95134

Phone: +1 408 526 5260 EMail: [email protected]

Keith McCloghrie Cisco Systems Inc. 170 West Tasman Drive San Jose, CA 95134

Phone: +1 408 526 5260 EMail: [email protected]

Sam Roberts Farallon Computing, Inc. 2470 Mariner Square Loop Alameda, CA 94501-1010

Phone: +1 510 814 5215 EMail: [email protected]

Appendix

Change Log

This section enumerates the changes made to RFC 2239 to produce this document.

  (1)   The MODULE-IDENTITY has been updated to reflect the changes
        in the MIB.
  (2)   OBJECT-IDENTITY definitions have been added for gigabit MAU
        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.

11. Full Copyright Statement

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Acknowledgement

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