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

                                 14 February

                                   31 May 1996

                        <draft-ietf-hubmib-mau-mib-01.txt>

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

                                  Dan Romascanu
                           Madge Networks (Israel) Ltd.
                                  dan@lannet.com
                                dromasca@madge.com

                                 Kathryn de Graaf
                                 3Com Corporation
                              kdegraaf@isd.3com.com

          Status of this Memo

          This document is an Internet-Draft.  Internet-Drafts are
          working documents of the Internet Engineering Task Force
          (IETF), its areas, and its working groups.  Note that other
          groups may also distribute working documents as Internet-
          Drafts.

          Internet-Drafts are draft documents valid for a maximum of six
          months and may be updated, replaced, or obsoleted by other
          documents at any time.  It is not appropriate to use Internet-
          Drafts as reference material or to cite them other than as a
          "work in progress".

          To learn the current status of any Internet-Draft, please
          check the "1id-abstracts.txt" listing contained in the
          Internet-Drafts Shadow Directories on ds.internic.net (US East
          Coast), nic.nordu.net (Europe), ftp.isi.edu (US West Coast),

,
          or munnari.oz.au (Pacific Rim).

          Abstract

          This memo defines an experimental portion of the Management
          Information Base (MIB) for use with network management
          protocols in the Internet community.  In particular, it
          defines objects for managing 10 and 100 Mb/second Medium
          Attachment Units (MAUs) based on IEEE Std 802.3 Section 30,
          "10 & 100 Mb/s Management," October 26, 1995.

          This memo does not specify a standard for the Internet
          community.

          1.  The SNMPv2 Network Management Framework

          The SNMPv2 Network Management Framework presently consists of several
          three major components.  They include: are:

          o    RFC 1902 which defines    the SMI, described in RFC 1902 [6] - the mechanisms used
               for describing and naming objects for the purpose of
               management.

          o    the MIB-II, STD 17, RFC 1213 defines MIB-II, [5] - the core set of
               managed objects for the Internet suite of protocols.

          o    the protocol, RFC 1157 [10] and/or RFC 1905 which defines [9] - the
               protocol used for network
               access to accessing managed objects. information.

          Textual conventions are defined in RFC 1903 [7], and
          conformance statements are defined in RFC 1904 [8].

          The Framework permits new objects to be defined for the
          purpose of experimentation and evaluation.

          1.1.  Object Definitions

          Managed objects are accessed via a virtual information store,
          termed the Management Information Base or MIB.  Objects in the
          MIB are defined using the subset of Abstract Syntax Notation
          One (ASN.1) defined in the SMI.  In particular, each object

,
          type is named by an OBJECT IDENTIFIER, an administratively
          assigned name.  The object type together with an object
          instance serves to uniquely identify a specific instantiation
          of the object.  For human convenience, we often use a textual
          string, termed the descriptor, to refer to the object type.

,
          2.  Overview

          2.1.  Relationship to RFC 1515

          This MIB is intended to be a superset of that defined by RFC
          1515 [11], 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 100 Mb/s devices

          o    auto-negotiation

          o    jack management

          2.2.  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 [1] and [2].  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 Mb/s Medium Attachment Units
          (MAUs)", and Annex 30A, "GDMO Specifications for 802.3 managed
          objects" of IEEE Std 802.3u-1995.  That specification includes
          definitions for both 10Mb/s and 100Mb/s devices, and is
          essentially a superset of the 10Mb/s definitions given by IEEE
          802.3 Section 20.  This specification is intended to serve the
          same purpose: to provide for management of both 10Mb/s and
          100Mb/s MAUs.

          2.1.

          2.3.  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. MIB-II [5].
          The following sections identify other MIBs that such an agent

,
          should implement.

          2.1.1.

          2.3.1.  Relationship to the MIB-II 'interfaces' group

          The sections of this document that define interface MAU-
          related objects specify an extension to the 'interfaces' group
          of MIB-II.  An agent implementing these interface-MAU related
          objects must also implement the 'interfaces' group of MIB-II.
          The value of the ifMauIfIndex 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, RFC 1650.

          (Note that repeater ports are not represented as interfaces in
          the sense of MIB-II's 'interfaces' group.)
          2.1.2.

          2.3.2.  Relationship to the 802.3 Repeater MIB

          The section of this document that defines repeater MAU-related
          objects specifies an extension to the 802.3 Repeater MIB
          defined in [4].  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.

          2.2.

          2.4.  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 group -- subtree:

,
          dot3RpMauBasicGroup for internal repeater-MAUs and
          dot3IfMauBasicGroup for internal interface-MAUs.

,
          3.  Definitions

          MAU-MIB DEFINITIONS ::= BEGIN

          IMPORTS
              experimental,
              Counter32, Integer32,
              OBJECT-TYPE, MODULE-IDENTITY, NOTIFICATION-TYPE NOTIFICATION-TYPE, mib-2
                  FROM SNMPv2-SMI
              OBJECT-GROUP, MODULE-COMPLIANCE
                  FROM SNMPv2-CONF
              mib-2
                  FROM RFC1213-MIB; SNMPv2-CONF;

          mauMod MODULE-IDENTITY
              LAST-UPDATED "9602140000Z" "9605310000Z"
              ORGANIZATION "IETF HUB MIB Working Group"
              CONTACT-INFO
                  "WG E-mail: hubmib@hprnd.rose.hp.com

                       Chair: Dan Romascanu
                      Postal: Madge Networks (Israel) Ltd.
                              Atidim Technology Park, Bldg. 3
                              Tel Aviv 61131, Israel
                         Tel: 972-3-6458414, 6458458
                         Fax: 972-3-6487146
                      E-mail: dan@lannet.com dromasca@madge.com

                      Editor: Kathryn de Graaf
                      Postal: 3Com Corporation
                              118 Turnpike Rd.
                              Southborough, MA  01772
                              USA
                         Tel: (508)229-1627
                         Fax: (508)490-5882
                      E-mail: kdegraaf@isd.3com.com"
              DESCRIPTION
                      "Management information for 802.3 MAUs.

                      The following references are used throughout this
                      MIB module:

                      [IEEE 802.3 Std]
                         refers to IEEE 802.3/ISO 8802-3 Information
                         processing systems - Local area networks -
                         Part 3: Carrier sense multiple access with
                         collision detection (CSMA/CD) access method

,
                         and physical layer specifications (1993),
                         and to IEEE Std 802.3u-1995, Supplement to
                         IEEE Std 802.3, clauses 22 through 29.

                      [IEEE 802.3 Mgt]
                         refers to IEEE 802.3u-1995, - 10 Mb/s &
                         100 Mb/s Management, Section 30 -
                         Supplement to IEEE Std 802.3."
              ::= { snmpDot3MauMgt 6 }

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

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

          dot3IfMauAutoNegGroup       OBJECT IDENTIFIER ::= { snmpDot3MauMgt 5 }

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

          dot3MauType
              OBJECT IDENTIFIER ::= { snmpDot3MauMgt 4 }
          dot3MauTypeAUI        -- no internal MAU, view from AUI
              OBJECT IDENTIFIER ::= { dot3MauType 1 }
          dot3MauType10Base5    -- thick coax MAU (per 802.3 section 8)
              OBJECT IDENTIFIER ::= { dot3MauType 2 }
          dot3MauTypeFoirl      -- FOIRL MAU (per 802.3 section 9.9)
              OBJECT IDENTIFIER ::= { dot3MauType 3 }
          dot3MauType10Base2    -- thin coax MAU (per 802.3 section 10)
              OBJECT IDENTIFIER ::= { dot3MauType 4 }
          dot3MauType10BaseT    -- UTP MAU (per 802.3 section 14)
              OBJECT IDENTIFIER ::= { dot3MauType 5 }
          dot3MauType10BaseFP   -- passive fiber MAU (per 802.3 section 16)
              OBJECT IDENTIFIER ::= { dot3MauType 6 }
          dot3MauType10BaseFB   -- sync fiber MAU (per 802.3 section 17)
              OBJECT IDENTIFIER ::= { dot3MauType 7 }
          dot3MauType10BaseFL   -- async fiber MAU (per 802.3 section 18)
              OBJECT IDENTIFIER ::= { dot3MauType 8 }
          dot3MauType10Broad36  -- broadband DTE MAU (per 802.3 section 11)
              -- note that 10BROAD36 MAUs can be attached to interfaces but

,
              -- not to repeaters
              OBJECT IDENTIFIER ::= { dot3MauType 9 }

          --

          ------ new for 100 MB/s: since RFC 1515:

          dot3MauType10BaseTHD   -- UTP MAU (per 802.3 section 14)
                                 -- half duplex mode
              OBJECT IDENTIFIER ::= { dot3MauType 10 }

          dot3MauType10BaseTFD   -- UTP MAU (per 802.3 section 14)
                                 -- full duplex mode
              OBJECT IDENTIFIER ::= { dot3MauType 11 }

          dot3MauType10BaseFLHD  -- async fiber MAU (per 802.3 section 18)
                                 -- half duplex mode
              OBJECT IDENTIFIER ::= { dot3MauType 12 }

          dot3MauType10BaseFLFD  -- async fiber MAU (per 802.3 section 18)
                                 -- full duplex mode
              OBJECT IDENTIFIER ::= { dot3MauType 13 }

          dot3MauType100BaseT4   -- 4 pair categ. 3 UTP (per 802.3 section 23)
              OBJECT IDENTIFIER ::= { dot3MauType 10 14 }
          dot3MauType100BaseTX

          dot3MauType100BaseTXHD -- 2 pair categ. 5 UTP (per 802.3 section 25) 25),
                                 -- half duplex mode
              OBJECT IDENTIFIER ::= { dot3MauType 11 15 }

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

          dot3MauType100BaseFXHD -- X fiber over PMT (per 802.3 section 26)
                                 -- half duplex mode
              OBJECT IDENTIFIER ::= { dot3MauType 17 }
          dot3MauType100BaseFX

          dot3MauType100BaseFXFD -- X fiber over PMT (per 802.3 section 26)
                                 -- full duplex mode
              OBJECT IDENTIFIER ::= { dot3MauType 12 18 }

          dot3MauType100BaseT2
              OBJECT IDENTIFIER ::= { dot3MauType 19 }

          --

,
          -- 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,
                  rpMauMediaAvail
                      INTEGER,
                  rpMauMediaAvailStateExits
                      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."
              ::= { 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
                      ""
              ::= { rpMauEntry 2 }

          rpMauIndex OBJECT-TYPE
              SYNTAX     Integer32 (1..2147483647)
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the MAU
                      connected to port rpMauPortIndex within group
                      rpMauGroupIndex that is
                      described by this entry." entry from among other MAUs
                      connected to the same port (rpMauPortIndex)."
              REFERENCE
                      "[IEEE 802.3 Mgt], 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 10 or 100 Mb/s
                      baseband 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 Mgt], 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 rpMauMediaAvail 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 rpMauMediaAvail 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 Mgt], 30.5.1.1.7, aMAUAdminState,
                      30.5.1.2.2, acMAUAdminControl, and 30.5.1.2.1,
                      acRESETMAU."
              ::= { rpMauEntry 5 }

          rpMauMediaAvail OBJECT-TYPE
              SYNTAX     INTEGER {
                             other(1),
                             unknown(2),
                             available(3),
                             notAvailable(4),

,
                             remoteFault(5),
                             invalidSignal(6),
                             remoteJabber(7),
                             remoteLinkLoss(8),
                             remoteTest(9)
                         }
              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 mediaAvail
                      state is not one of 2 through 6.

                      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 100BASE-T4, 100BASE-TX and 100BASE-FX the
                      enumerations match the states within the
                      respective link integrity state diagrams, fig 23-
                      12 and 24-15 of sections 23 and 24 of [2].  Any
                      MAU which implements management of Auto-
                      Negotiation 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. 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)."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.4, aMediaAvailable."
              ::= { rpMauEntry 6 }

          rpMauMediaAvailStateExits OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "A count of the number of times that
                      rpMauMediaAvail for this MAU instance leaves the
                      state available(3)."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.5, aLoseMediaCounter."
              ::= { 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 Mgt], 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, and dot3MauType100BaseFX,
                      this counter will always indicate zero."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.6,
                      aJabber.jabberCounter."
              ::= { 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.  For all other MAU types,
                      this counter will always indicate zero.

                      The approximate minimum time for rollover of this
                      counter is 7.4 hours."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.10, aFalseCarriers."
              ::= { 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    { rpJackGroupIndex,
                         rpJackPortIndex,
                         rpJackMauIndex, rpMauGroupIndex,
                         rpMauPortIndex,
                         rpMauIndex,
                         rpJackIndex }
              ::= { rpJackTable 1 }

,
          RpJackEntry ::=
              SEQUENCE {
                  rpJackGroupIndex
                      Integer32,
                  rpJackPortIndex
                      Integer32,
                  rpJackMauIndex
                      Integer32,
                  rpJackIndex
                      Integer32,
                  rpJackType
                      INTEGER
              }

          rpJackGroupIndex OBJECT-TYPE
              SYNTAX     Integer32 (1..2147483647)
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the group
                      within containing the port attached to the MAU to
                      which the jack 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 rpMauGroupIndex."
              ::= { rpJackEntry 1 }

          rpJackPortIndex OBJECT-TYPE
              SYNTAX     Integer32 (1..2147483647)
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the repeater
                      port within group rpJackGroupIndex attached to the
                      MAU to which the jack described by this entry is
                      connected."
              REFERENCE
                      ""
              ::= { rpJackEntry 2 }

          rpJackMauIndex OBJECT-TYPE
              SYNTAX     Integer32 (1..2147483647)
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the MAU
                      connected to port rpJackPortIndex within group
                      rpJackGroupIndex to which the jack that is
                      described by this entry is connected."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.1, aMAUID."
              ::= { rpJackEntry 3 }

          rpJackIndex OBJECT-TYPE
              SYNTAX     Integer32 (1..2147483647)
              MAX-ACCESS read-only not-accessible
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the jack
                      described by this entry from among within other jacks
                      attached to the same MAU denoted by rpJackMauIndex." (rpMauIndex)."
              ::= { rpJackEntry 4 1 }

          rpJackType OBJECT-TYPE
              SYNTAX     INTEGER {
                             other(1),
                             rj45(2)
                             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)
                         }
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "The jack connector type, as it appears on the
                      outside of the system."
              ::= { rpJackEntry 5 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,
                  ifMauMediaAvail
                      INTEGER,
                  ifMauMediaAvailStateExits
                      Counter32,
                  ifMauJabberState
                      INTEGER,
                  ifMauJabberingStateEnters
                      Counter32,
                  ifMauFalseCarriers
                      Counter32,
                  ifMauTypeList
                      Integer32
              }

          ifMauIfIndex OBJECT-TYPE
              SYNTAX     Integer32
              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
                      connected to interface ifMauIfIndex that is
                      described by this entry." entry from among other MAUs
                      connected to the same interface (ifMauIfIndex)."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.1, aMAUID."
              ::= { ifMauEntry 2 }

          ifMauType OBJECT-TYPE
              SYNTAX     OBJECT IDENTIFIER
              MAX-ACCESS read-only read-write
              STATUS     current
              DESCRIPTION
                      "This object identifies the 10 or 100 Mb/s
                      baseband 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 Mgt], 30.5.1.1.2, aMAUType."
              ::= { ifMauEntry 3 }

          ifMauStatus OBJECT-TYPE
              SYNTAX     INTEGER {
                             other(1),
                             unknown(2),
                             operational(3),
                             standby(4),
                             shutdown(5), value.

                      If auto-negotiation is not enabled or is not
                      implemented for this MAU, a set to this object
                      will force the MAU into the new operating mode.
                      If auto-negotiation is present and enabled on this
                      MAU, a set to this object has no effect, and the

,
                      value of this object reflects the result of the
                      auto-negotiation function."
              REFERENCE
                      "[IEEE 802.3 Mgt], 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 ifMauMediaAvail 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 ifMauMediaAvail 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 Mgt], 30.5.1.1.7, aMAUAdminState,
                      30.5.1.2.2, acMAUAdminControl, and 30.5.1.2.1,
                      acRESETMAU."
              ::= { ifMauEntry 4 }

          ifMauMediaAvail OBJECT-TYPE
              SYNTAX     INTEGER {
                             other(1),
                             unknown(2),
                             available(3),
                             notAvailable(4),
                             remoteFault(5),
                             invalidSignal(6),
                             remoteJabber(7),
                             remoteLinkLoss(8),
                             remoteTest(9)
                         }
              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 mediaAvail
                      state is not one of 2 through 6.

                      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 100BASE-T4, 100BASE-TX and 100BASE-FX the
                      enumerations match the states within the
                      respective link integrity state diagrams, fig 23-
                      12 and 24-15 of sections 23 and 24 of [2].  Any
                      MAU which implements management of Auto-
                      Negotiation 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. 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)."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.4, aMediaAvailable."
              ::= { ifMauEntry 5 }

          ifMauMediaAvailStateExits OBJECT-TYPE
              SYNTAX     Counter32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "A count of the number of times that
                      ifMauMediaAvail for this MAU instance leaves the
                      state available(3)."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.5, aLoseMediaCounter."
              ::= { 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 Mgt], 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).  For MAUs of type
                      dot3MauTypeAUI, dot3MauType100BaseT4,
                      dot3MauType100BaseTX, and dot3MauType100BaseFX,
                      this counter will always indicate zero."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.6,
                      aJabber.jabberCounter."
              ::= { 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 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.  For all other MAU types,
                      this counter will always indicate zero.

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

,
                      "[IEEE 802.3 Mgt], 30.5.1.1.10, aFalseCarriers."
              ::= { ifMauEntry 9 }

          ifMauTypeList OBJECT-TYPE
              SYNTAX     Integer32
              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.
                      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 1536
                      ((2**9) ((2**11) + (2**10)). (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      100BASE-T4      10BASE-T  half duplex mode
                       11      100BASE-TX      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

,
                      If auto-negotiation is present on the jack to
                      which this MAU is attached, MAU, this attribute
                      object will map to the ifMauAutoNegCapability."
              ::= { ifMauEntry 10 }

          -- 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    { ifJackIfIndex,
                         ifJackMauIndex, ifMauIfIndex,
                         ifMauIndex,
                         ifJackIndex }
              ::= { ifJackTable 1 }

          IfJackEntry ::=
              SEQUENCE {
                  ifJackIfIndex
                      Integer32,
                  ifJackMauIndex
                      Integer32,
                  ifJackIndex
                      Integer32,
                  ifJackType
                      INTEGER
              }

          ifJackIfIndex OBJECT-TYPE
              SYNTAX     Integer32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the interface
                      attached to the MAU to which the jack described by
                      this entry is connected.

                      The interface denoted by a particular value of
                      this object is the same as the group denoted by
                      the same value of ifMauIfIndex."
              ::= { ifJackEntry 1 }

          ifJackMauIndex OBJECT-TYPE
              SYNTAX     Integer32 (1..2147483647)
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the MAU
                      connected to port ifJackIfIndex to which the jack
                      that is described by this entry is connected."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.5.1.1.1, aMAUID."
              ::= { ifJackEntry 2 }

          ifJackIndex OBJECT-TYPE
              SYNTAX     Integer32 (1..2147483647)
              MAX-ACCESS read-only not-accessible
              STATUS     current
              DESCRIPTION
                      "This variable uniquely identifies the jack
                      described by this entry from among within other jacks

,
                      attached to the MAU denoted by ifJackMauIndex." same MAU."
              ::= { ifJackEntry 3 1 }

          ifJackType OBJECT-TYPE
              SYNTAX     INTEGER {
                             other(1),
                             rj45(2)
                             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)
                         }
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "The jack connector type, as it appears on the
                      outside of the system."
              ::= { ifJackEntry 4 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."
              AUGMENTS
                  INDEX     { ifMauEntry ifMauIfIndex, ifMauIndex }
              ::= { ifMauAutoNegTable 1 }

          IfMauAutoNegEntry ::=
              SEQUENCE {
                  ifMauAutoNegAdminStatus
                      INTEGER,
                  ifMauAutoNegRemoteSignaling
                      INTEGER,
                  ifMauAutoNegConfig
                      INTEGER,
                  ifMauAutoNegCapability
                      Integer32,
                  ifMauAutoNegCapAdvertised
                      Integer32,
                  ifMauAutoNegCapReceived
                      Integer32,
                  ifMauAutoNegTechnologyInUse
                      INTEGER,
                  ifMauAutoNegRestart
                      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 disabled the value of this object is disabled(2) then
                      the interface will act as it would if it had no auto-
                      negotiation
                      auto-negotiation signaling.  Under these
                      conditions, an IEEE 802.3 MAU will immediately be
                      forced to the states state indicated by a write to the
                      object rpMauType or ifMauType.
                      [Ed.--This doesn't allow for half vs. full
                      duplex.]" ifMauType."

,
              REFERENCE
                      "[IEEE 802.3 Mgt], 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 Mgt], 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 Mgt], 30.6.1.1.4,
                      aAutoNegAutoConfig."
              ::= { ifMauAutoNegEntry 4 }

          ifMauAutoNegCapability OBJECT-TYPE

,
              SYNTAX     Integer32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "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 512 (2**9). 32768 (2**15).  In
                      contrast, an interface which supports both
                      100Base-TX half duplex and and 100Base-TX Full Duplex full
                      duplex would have a value of 1536
                      ((2**9) 98304 ((2**15) + (2**10)).
                      (2**16)).

                      The powers of 2 assigned to the capabilities are
                      these:

                      Power   Capability
                        1
                        0       other
                        2      reserved
                        3      10BASE-T
                        4      10BASE-T Full Duplex
                        5      10BASE-FL
                        6      10BASE-FL Full Duplex
                        7      10BASE-FB
                        8      10BASE-FB Full Duplex
                        9      100BASE-TX or unknown
                       (1-9)    (reserved)
                       10      100BASE-TX Full Duplex       10BASE-T  half duplex mode
                       11      100BASE-FX       10BASE-T  full duplex mode
                       12      100BASE-FX Full Duplex       (reserved)
                       13       (reserved)
                       14       100BASE-T4

                      For IEEE 802.3 MAUs, the half- and full-duplex
                      value pairs each map to a single MAU type.  For
                      example, 10BASE-T and 10BASE-T Full Duplex each
                      use a MAU type of dot3MauType10BaseT.
                       15       100BASE-TX half duplex mode
                       16       100BASE-TX full duplex mode

                      Note that interfaces that support this MIB may
                      have capabilities that extend beyond the scope of
                      this MIB."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.6.1.1.5,
                      aAutoNegLocalTechnologyAbility."
              ::= { ifMauAutoNegEntry 5 }

          ifMauAutoNegCapAdvertised OBJECT-TYPE
              SYNTAX     Integer32
              MAX-ACCESS read-write
              STATUS     current
              DESCRIPTION
                      "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."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.6.1.1.6,
                      aAutoNegAdvertisedTechnologyAbility."
              ::= { ifMauAutoNegEntry 6 }

          ifMauAutoNegCapReceived OBJECT-TYPE
              SYNTAX     Integer32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "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."
              REFERENCE
                      "[IEEE 802.3 Mgt], 30.6.1.1.7,
                      aAutoNegReceivedTechnologyAbility."
              ::= { ifMauAutoNegEntry 7 }

          ifMauAutoNegTechnologyInUse OBJECT-TYPE
              SYNTAX     INTEGER {
                             other(1),
                             reserved(2),
                             t10BASET(3),
                             t10BASETFD(4),
                             t10BASEFL(5),
                             t10BASEFLFD(6),
                             t10BASEFB(7),
                             t10BASEFBFD(8),
                             t100BASETX(9),
                             t100BASETXFD(10),
                             t100BASEFX(11),
                             t100BASEFXFD(12),
                             t100BASET4(13)
                         }
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "The value of this object identifies the
                      technology currently in use on the link to which
                      this MAU is attached.  This value may be a result
                      of auto- negotiation on the link.  If auto-
                      negotiation is disabled and the MAU is an IEEE
                      802.3 MAU, this object will change to reflect the
                      result of a write to the object rpMauType or
                      ifMauType."
              ::= { ifMauAutoNegEntry 8 }

          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 Mgt], 30.6.1.2.1,
                      acAutoNegRestartAutoConfig."
              ::= { ifMauAutoNegEntry 9 8 }

          broadMauBasicTable OBJECT-TYPE
              SYNTAX     SEQUENCE OF BroadMauBasicEntry
              MAX-ACCESS not-accessible
              STATUS     current
              DESCRIPTION
                      "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     current
              DESCRIPTION
                      "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
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION

,
                      "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     current
              DESCRIPTION
                      "This variable uniquely identifies the MAU
                      connected to interface broadMauIfIndex that is
                      described by this entry."
              REFERENCE
                      "Reference IEEE 802.3 MAU Mgt, 20.2.3.2, aMAUID."
              ::= { broadMauBasicEntry 2 }

          broadMauXmtRcvSplitType OBJECT-TYPE
              SYNTAX     INTEGER {
                             other(1),
                             single(2),
                             dual(3)
                         }
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "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
                      "Reference IEEE 802.3 MAU Mgt, 20.2.3.2,
                      aBbMAUXmitRcvSplitType."
              ::= { broadMauBasicEntry 3 }

          broadMauXmtCarrierFreq OBJECT-TYPE
              SYNTAX     Integer32

,
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable indicates the transmit carrier
                      frequency of the 10BROAD36 MAU in MHz/4; that is,
                      in units of 250 kHz."
              REFERENCE
                      "Reference IEEE 802.3 MAU Mgt, 20.2.3.2,
                      aBroadbandFrequencies.xmitCarrierFrequency."
              ::= { broadMauBasicEntry 4 }

          broadMauTranslationFreq OBJECT-TYPE
              SYNTAX     Integer32
              MAX-ACCESS read-only
              STATUS     current
              DESCRIPTION
                      "This variable indicates the translation offset
                      frequency of the 10BROAD36 MAU in MHz/4; that is,
                      in units of 250 kHz."
              REFERENCE
                      "Reference IEEE 802.3 MAU Mgt, 20.2.3.2,
                      aBroadbandFrequencies.translationFrequency."
              ::= { broadMauBasicEntry 5 }

          -- Notifications for use by 802.3 MAUs

          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."
              ::= { snmpDot3MauMgt 0 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."
              ::= { snmpDot3MauMgt 0 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,
                            rpMauMediaAvail,
                            rpMauMediaAvailStateExits,
                            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 }

          mauRpGrpExtended

,
          mauRpGrp100Mbs OBJECT-GROUP
              OBJECTS     { rpMauFalseCarriers,

                            rpJackGroupIndex,
                            rpJackPortIndex,
                            rpJackMauIndex,
                            rpJackIndex,
                            rpJackType rpMauFalseCarriers }
              STATUS      current
              DESCRIPTION
                  "Conformance group for MAUs attached to
                  repeater ports with extended management
                  (including 100 Mb/s and jack management)." 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,
                            ifMauMediaAvail,
                            ifMauMediaAvailStateExits,
                            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 3 4 }
          mauIfGrpExtended

          mauIfGrp100Mbs OBJECT-GROUP
              OBJECTS     { ifMauFalseCarriers,
                            ifMauTypeList,

                            ifJackIfIndex,
                            ifJackMauIndex,
                            ifJackIndex,
                            ifJackType
                            ifMauTypeList }
              STATUS      current
              DESCRIPTION
                  "Conformance group for MAUs attached
                  to interfaces with extended management
                  (including 100 Mb/s and jack management)." capability."
              ::= { mauModObjGrps 4 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,
                            ifMauAutoNegTechnologyInUse,
                            ifMauAutoNegRestart }
              STATUS      current
              DESCRIPTION
                  "Conformance group for MAUs attached to
                  interfaces with managed auto-negotiation."
              ::= { mauModObjGrps 5 7 }

          mauBroadBasic OBJECT-GROUP
              OBJECTS     { broadMauIfIndex,
                            broadMauIndex,
                            broadMauXmtRcvSplitType,
                            broadMauXmtCarrierFreq,
                            broadMauTranslationFreq }
              STATUS      current
              DESCRIPTION
                  "Conformance group for broadband MAUs
                  attached to interfaces.  This group
                  provides a conformance specification
                  for RFC 1515 implementations."
              ::= { mauModObjGrps 6 8 }

          -- Notification groups

          -- ?? later

          -- Compliances

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

              MODULE -- this module
                  MANDATORY-GROUPS { mauRpGrpBasic }

                  GROUP mauRpGrpExtended mauRpGrp100Mbs

,
                  DESCRIPTION
                      "Implementation of this optional group is
                      recommended for MAUs which have 100Mb/s
                      capability and/or more than
                      capability."

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

              ::= { mauModCompls 1 }

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

              MODULE -- this module
                  MANDATORY-GROUPS { mauIfGrpBasic }

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

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

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

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

,
              ::= { mauModCompls 2 }

          END

,
          4.  References

          [1]  IEEE 802.3/ISO 8802-3 Information processing systems -
               Local area networks - Part 3:  Carrier sense multiple
               access with collision detection (CSMA/CD) access method
               and physical layer specifications, 1993.

          [2]  IEEE 802.3u-1995, "MAC Parameters, Physical Layer, Medium
               Attachment Units and Repeater for 100 Mb/s Operation,
               Type 100BASE-T," Sections 21 through 29, Supplement to
               IEEE Std 802.3, October 26, 1995.

          [3]  IEEE 802.3u-1995, "10 & 100 Mb/s Management," Section 30,
               Supplement to IEEE Std 802.3, October 26, 1995.

          [4]  Romascanu, D., and K. de Graaf, "Definitions of Managed
               Objects for IEEE 802.3 Repeater Devices", February May 1996.

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

          [6]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
               and S. Waldbusser, "Structure of Management Information
               for version 2 of the Simple Network Management Protocol
               (SNMPv2)", RFC 1902, January 1996.

          [7]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
               and S. Waldbusser, "Textual Conventions for version 2 of
               the Simple Network Management Protocol (SNMPv2)", RFC
               1903, January 1996.

          [8]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M.,
               and S. Waldbusser, "Conformance Statements for version 2
               of the Simple Network Management Protocol (SNMPv2)", RFC
               1904, January 1996.

          [9]  SNMPv2 Working Group, 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.

          [10] Case, J., M. Fedor, M. Schoffstall, J. Davin, "Simple
               Network Management Protocol", RFC 1157, SNMP Research,

,
               Performance Systems International, MIT Laboratory for
               Computer Science, May 1990.

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

,
          5.  Security Considerations

          Security issues are not discussed in this memo.

          6.  Authors' Addresses

               Dan Romascanu
               Madge Networks (Israel) Ltd.
               Atidim Technology Park, Bldg. 3
               Tel Aviv 61131, Israel
               Tel: 972-3-6458414, 6458458
               Fax: 972-3-6487146
               E-mail: dromasca@madge.com

               Kathryn de Graaf
               3Com Corporation
               118 Turnpike Rd.
               Southborough, MA 01772 USA
               Tel: (508)229-1627
               Fax: (508)490-5882
               E-mail: kdegraaf@isd.3com.com

,
          Table of Contents

          1 The SNMPv2 Network Management Framework ...............    2
          1.1 Object Definitions ..................................    2
          2 Overview ..............................................    4
          2.1 Relationship to RFC 1515 ............................    4
          2.2 MAU Management ......................................    4
          2.3 Relationship to Other MIBs ..........................    4
          2.3.1 Relationship to the MIB-II 'interfaces' group .....    5
          2.3.2 Relationship to the 802.3 Repeater MIB ............    5
          2.4 Management of Internal MAUs .........................    5
          3 Definitions ...........................................    7
          4 References ............................................   41
          5 Security Considerations ...............................   43
          6 Authors' Addresses ....................................   43