        EtherLike-MIB DEFINITIONS ::= BEGIN

           IMPORTS
               Counter                FROM RFC1155-SMI
               ifIndex, transmission  FROM RFC1213-MIB
               OBJECT-TYPE            FROM RFC-1212;

            -- This MIB module uses the extended OBJECT-TYPE macro as
            -- defined in RFC-1212.

           dot3    OBJECT IDENTIFIER ::= { transmission 7 }

           -- the Ethernet-like Statistics group

            dot3StatsTable  OBJECT-TYPE
                 SYNTAX     SEQUENCE OF Dot3StatsEntry
                 ACCESS     not-accessible
                 STATUS     mandatory
                 DESCRIPTION
                  "Statistics for a collection of ethernet-like
                  interfaces attached to a particular system."
                 ::= { dot3 2 }

            dot3StatsEntry   OBJECT-TYPE
                 SYNTAX      Dot3StatsEntry
                 ACCESS      not-accessible
                 STATUS      mandatory
                 DESCRIPTION
                   "Statistics for a particular interface to an
                   ethernet-like medium."
                 INDEX     { dot3StatsIndex }
                 ::= { dot3StatsTable 1 }

            Dot3StatsEntry ::= SEQUENCE {
                 dot3StatsIndex                      INTEGER,
                 dot3StatsAlignmentErrors            Counter,
                 dot3StatsFCSErrors                  Counter,
                 dot3StatsSingleCollisionFrames      Counter,
                 dot3StatsMultipleCollisionFrames    Counter,
                 dot3StatsSQETestErrors              Counter,
                 dot3StatsDeferredTransmissions      Counter,
                 dot3StatsLateCollisions             Counter,
                 dot3StatsExcessiveCollisions        Counter,
                 dot3StatsInternalMacTransmitErrors  Counter,
                 dot3StatsCarrierSenseErrors         Counter,
                 dot3StatsFrameTooLongs              Counter,
                 dot3StatsInternalMacReceiveErrors   Counter,
                 dot3StatsEtherChipSet               OBJECT IDENTIFIER
            }

            dot3StatsIndex   OBJECT-TYPE
                 SYNTAX      INTEGER
                 ACCESS      read-only
                 STATUS      mandatory
                 DESCRIPTION
                   "An index value that uniquely identifies an
                   interface to an ethernet-like medium.  The
                   interface identified by a particular value of
                   this index is the same interface as identified
                   by the same value of ifIndex."
                 ::= { dot3StatsEntry 1 }

            dot3StatsAlignmentErrors   OBJECT-TYPE
                 SYNTAX     Counter
                 ACCESS     read-only
                 STATUS     mandatory
                 DESCRIPTION
                  "A count of frames received on a particular
                  interface that are not an integral number of
                  octets in length and do not pass the FCS check.

                  The count represented by an instance of this
                  object is incremented when the alignmentError
                  status is returned by the MAC service to the
                  LLC (or other MAC user). Received frames for
                  which multiple error conditions obtain are,
                  according to the conventions of IEEE 802.3
                  Layer Management, counted exclusively according
                  to the error status presented to the LLC."
                 REFERENCE
	         "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 2 }

            dot3StatsFCSErrors   OBJECT-TYPE
                 SYNTAX      Counter
                 ACCESS      read-only
                 STATUS      mandatory
                 DESCRIPTION
                 "A count of frames received on a particular
                 interface that are an integral number of octets
                 in length but do not pass the FCS check.
                 The count represented by an instance of this
                 object is incremented when the frameCheckError
                 status is returned by the MAC service to the
                 LLC (or other MAC user). Received frames for
                 which multiple error conditions obtain are,
                 according to the conventions of IEEE 802.3
                 Layer Management, counted exclusively according
                 to the error status presented to the LLC."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 3 }

            dot3StatsSingleCollisionFrames   OBJECT-TYPE
                 SYNTAX      Counter
                 ACCESS      read-only
                 STATUS      mandatory
                 DESCRIPTION
                 "A count of successfully transmitted frames on
                 a particular interface for which transmission
                 is inhibited by exactly one collision.
                 A frame that is counted by an instance of this
                 object is also counted by the corresponding
                 instance of either the ifOutUcastPkts,
                 ifOutMulticastPkts, or ifOutBroadcastPkts,
                 and is not counted by the corresponding
                 instance of the dot3StatsMultipleCollisionFrames
                 object."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 4 }

            dot3StatsMultipleCollisionFrames   OBJECT-TYPE
                 SYNTAX      Counter
                 ACCESS      read-only
                 STATUS      mandatory
                 DESCRIPTION
                 "A count of successfully transmitted frames on
                 a particular interface for which transmission
                 is inhibited by more than one collision.
                 A frame that is counted by an instance of this
                 object is also counted by the corresponding
                 instance of either the ifOutUcastPkts,
                 ifOutMulticastPkts, or ifOutBroadcastPkts,
                 and is not counted by the corresponding
                 instance of the dot3StatsSingleCollisionFrames
                 object."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 5 }

            dot3StatsSQETestErrors   OBJECT-TYPE
                 SYNTAX     Counter
                 ACCESS     read-only
                 STATUS     mandatory
                 DESCRIPTION
                 "A count of times that the SQE TEST ERROR
                 message is generated by the PLS sublayer for a
                 particular interface. The SQE TEST ERROR
                 message is defined in section 7.2.2.2.4 of
                 ANSI/IEEE 802.3-1985 and its generation is
                 described in section 7.2.4.6 of the same
                 document."
                 REFERENCE
                 "ANSI/IEEE Std 802.3-1985 Carrier Sense
                 Multiple Access with Collision Detection Access
                 Method and Physical Layer Specifications"
                 ::= { dot3StatsEntry 6 }

            dot3StatsDeferredTransmissions   OBJECT-TYPE
                 SYNTAX      Counter
                 ACCESS      read-only
                 STATUS      mandatory
                 DESCRIPTION
                 "A count of frames for which the first
                 transmission attempt on a particular interface
                 is delayed because the medium is busy.
                 The count represented by an instance of this
                 object does not include frames involved in
                 collisions."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 7 }

            dot3StatsLateCollisions   OBJECT-TYPE
                 SYNTAX      Counter
                 ACCESS      read-only
                 STATUS      mandatory
                 DESCRIPTION
                 "The number of times that a collision is
                 detected on a particular interface later than
                 512 bit-times into the transmission of a
                 packet.
                 Five hundred and twelve bit-times corresponds
                 to 51.2 microseconds on a 10 Mbit/s system. A
                 (late) collision included in a count
                 represented by an instance of this object is
                 also considered as a (generic) collision for
                 purposes of other collision-related
                 statistics."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 8 }

            dot3StatsExcessiveCollisions   OBJECT-TYPE
                 SYNTAX    Counter
                 ACCESS    read-only
                 STATUS    mandatory
                 DESCRIPTION
                 "A count of frames for which transmission on a
                 particular interface fails due to excessive
                 collisions."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 9 }

            dot3StatsInternalMacTransmitErrors   OBJECT-TYPE
                 SYNTAX    Counter
                 ACCESS    read-only
                 STATUS    mandatory
                 DESCRIPTION
                 "A count of frames for which transmission on a
                 particular interface fails due to an internal
                 MAC sublayer transmit error. A frame is only
                 counted by an instance of this object if it is
                 not counted by the corresponding instance of
                 either the dot3StatsLateCollisions object, the
                 dot3StatsExcessiveCollisions object, or the
                 dot3StatsCarrierSenseErrors object.
                 The precise meaning of the count represented by
                 an instance of this object is implementation-
                 specific.  In particular, an instance of this
                 object may represent a count of transmission
                 errors on a particular interface that are not
                 otherwise counted."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 10 }

            dot3StatsCarrierSenseErrors   OBJECT-TYPE
                 SYNTAX    Counter
                 ACCESS    read-only
                 STATUS    mandatory
                 DESCRIPTION
                 "The number of times that the carrier sense
                 condition was lost or never asserted when
                 attempting to transmit a frame on a particular
                 interface.
                 The count represented by an instance of this
                 object is incremented at most once per
                 transmission attempt, even if the carrier sense
                 condition fluctuates during a transmission
                 attempt."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 11 }

            -- { dot3StatsEntry 12 } is not assigned

            dot3StatsFrameTooLongs   OBJECT-TYPE
                 SYNTAX    Counter
                 ACCESS    read-only
                 STATUS    mandatory
                 DESCRIPTION
                 "A count of frames received on a particular
                 interface that exceed the maximum permitted
                 frame size.
                 The count represented by an instance of this
                 object is incremented when the frameTooLong
                 status is returned by the MAC service to the
                 LLC (or other MAC user). Received frames for
                 which multiple error conditions obtain are,
                 according to the conventions of IEEE 802.3
                 Layer Management, counted exclusively according
                 to the error status presented to the LLC."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 13 }

            -- { dot3StatsEntry 14 } is not assigned

            -- { dot3StatsEntry 15 } is not assigned

            dot3StatsInternalMacReceiveErrors   OBJECT-TYPE
                 SYNTAX    Counter
                 ACCESS    read-only
                 STATUS    mandatory
                 DESCRIPTION
                 "A count of frames for which reception on a
                 particular interface fails due to an internal
                 MAC sublayer receive error. A frame is only
                 counted by an instance of this object if it is
                 not counted by the corresponding instance of
                 either the dot3StatsFrameTooLongs object, the
                 dot3StatsAlignmentErrors object, or the
                 dot3StatsFCSErrors object.
                 The precise meaning of the count represented by
                 an instance of this object is implementation-
                 specific.  In particular, an instance of this
                 object may represent a count of receive errors
                 on a particular interface that are not
                 otherwise counted."
                 REFERENCE
                 "IEEE 802.3 Layer Management"
                 ::= { dot3StatsEntry 16 }

            dot3StatsEtherChipSet   OBJECT-TYPE
                 SYNTAX        OBJECT IDENTIFIER
                 ACCESS        read-only
                 STATUS        mandatory
                 DESCRIPTION
                 "This object contains an OBJECT IDENTIFIER
                 which identifies the chipset used to
                 realize the interface. Ethernet-like
                 interfaces are typically built out of
                 several different chips. The MIB implementor
                 is presented with a decision of which chip
                 to identify via this object. The implementor
                 should identify the chip which is usually
                 called the Medium Access Control chip.
                 If no such chip is easily identifiable,
                 the implementor should identify the chip
                 which actually gathers the transmit
                 and receive statistics and error
                 indications. This would allow a
                 manager station to correlate the
                 statistics and the chip generating
                 them, giving it the ability to take
                 into account any known anomalies
                 in the chip."
                 ::= { dot3StatsEntry 17 }

            -- the Ethernet-like Collision Statistics group

            -- Implementation of this group is optional; it is appropriate
            -- for all systems which have the necessary metering

            dot3CollTable  OBJECT-TYPE
                 SYNTAX    SEQUENCE OF Dot3CollEntry
                 ACCESS    not-accessible
                 STATUS    mandatory
                 DESCRIPTION
                 "A collection of collision histograms for a
                 particular set of interfaces."
                 ::= { dot3 5 }

            dot3CollEntry  OBJECT-TYPE
                 SYNTAX    Dot3CollEntry
                 ACCESS    not-accessible
                 STATUS    mandatory
                 DESCRIPTION
                 "A cell in the histogram of per-frame
                 collisions for a particular interface.  An
                 instance of this object represents the
                 frequency of individual MAC frames for which
                 the transmission (successful or otherwise) on a
                 particular interface is accompanied by a
                 particular number of media collisions."
                 INDEX     { ifIndex, dot3CollCount }
                 ::= { dot3CollTable 1 }

            Dot3CollEntry ::= SEQUENCE {
                 dot3CollCount        INTEGER,
                 dot3CollFrequencies  Counter
            }

            -- { dot3CollEntry 1 } is no longer in use

            dot3CollCount  OBJECT-TYPE
                 SYNTAX    INTEGER (1..16)
                 ACCESS    not-accessible
                 STATUS    mandatory
                 DESCRIPTION
                 "The number of per-frame media collisions for
                 which a particular collision histogram cell
                 represents the frequency on a particular
                 interface."
                 ::= { dot3CollEntry 2 }

            dot3CollFrequencies   OBJECT-TYPE
                 SYNTAX    Counter
                 ACCESS    read-only
                 STATUS    mandatory
                 DESCRIPTION
                 "A count of individual MAC frames for which the
                 transmission (successful or otherwise) on a
                 particular interface occurs after the
                 frame has experienced exactly the number
                 of collisions in the associated
                 dot3CollCount object.
                 For example, a frame which is transmitted
                 on interface 77 after experiencing
                 exactly 4 collisions would be indicated
                 by incrementing only dot3CollFrequencies.77.4.
                 No other instance of dot3CollFrequencies would
                 be incremented in this example."
                 ::= { dot3CollEntry 3 }

            --  802.3 Tests

            dot3Tests   OBJECT IDENTIFIER ::= { dot3 6 }

            dot3Errors  OBJECT IDENTIFIER ::= { dot3 7 }

            --  TDR Test

            -- The Time-Domain Reflectometry (TDR) test is specific
            -- to ethernet-like interfaces with the exception of
            -- 10BaseT and 10BaseF. The TDR value may be useful
            -- in determining the approximate distance to a cable fault.
            -- It is advisable to repeat this test to check for a
            -- consistent resulting TDR value, to verify that there
            -- is a fault.

            dot3TestTdr OBJECT IDENTIFIER ::= { dot3Tests 1 }

            -- A TDR test returns as its result the time interval,
            -- measured in 10 MHz ticks or 100 nsec units, between
            -- the start of TDR test transmission and the subsequent
            -- detection of a collision or deassertion of carrier.  On
            -- successful completion of a TDR test, the result is
            -- stored as the value of the appropriate instance of the
            -- MIB object dot3TestTdrValue, and the OBJECT IDENTIFIER
            -- of that instanceis stored in the corresponding instance
            -- of ifExtnsTestCode (thereby indicating where the
            -- result has been stored).

            -- Loopback Test

            -- Another test is the full-duplex loopback test.
            -- This test configures the MAC chip and executes
            -- an internal loopback test of memory, data paths,
            -- and the MAC chip logic.  This loopback test can
            -- only be executed if the interface is offline.
            -- Once the test has completed, the MAC chip should
            -- be reinitialized for network operation, but it
            -- should remain offline.

            dot3TestLoopBack OBJECT IDENTIFIER ::= { dot3Tests 2 }

            -- If an error occurs during a test, the object
            -- ifTestResult (defined in RFC 1573) will be set
            -- to failed(7).  The following two OBJECT
            -- IDENTIFIERs may be used to provided more
            -- information as values for ifTestCode.

                     -- couldn't initialize MAC chip for test
            dot3ErrorInitError     OBJECT IDENTIFIER ::= { dot3Errors 1 }

                     -- expected data not received (or not
                     -- received correctly) in loopback test
            dot3ErrorLoopbackError OBJECT IDENTIFIER ::= { dot3Errors 2 }

            -- RFC 1573 does away with the interface chipset object.
            -- The following OBJECT IDENTIFIER definitions are
            -- retained for purposes of backwards compatibility
            -- with pre-RFC 1573 systems.
            --  802.3 Hardware Chipsets

            -- The object ifExtnsChipSet is provided in RFC 1229 to
            -- identify the MAC hardware used to communcate on an
            -- interface.  The following hardware chipsets are
            -- provided for 802.3:

            dot3ChipSets          OBJECT IDENTIFIER ::= { dot3 8 }
            dot3ChipSetAMD        OBJECT IDENTIFIER ::= { dot3ChipSets 1 }
            dot3ChipSetAMD7990    OBJECT IDENTIFIER ::= { dot3ChipSetAMD 1 }
            dot3ChipSetAMD79900   OBJECT IDENTIFIER ::= { dot3ChipSetAMD 2 }
            dot3ChipSetAMD79C940  OBJECT IDENTIFIER ::= { dot3ChipSetAMD 3 }

            dot3ChipSetIntel      OBJECT IDENTIFIER ::= { dot3ChipSets 2 }
            dot3ChipSetIntel82586 OBJECT IDENTIFIER ::= { dot3ChipSetIntel 1 }
            dot3ChipSetIntel82596 OBJECT IDENTIFIER ::= { dot3ChipSetIntel 2 }

            dot3ChipSetSeeq       OBJECT IDENTIFIER ::= { dot3ChipSets 3 }
            dot3ChipSetSeeq8003   OBJECT IDENTIFIER ::= { dot3ChipSetSeeq 1 }

            dot3ChipSetNational      OBJECT IDENTIFIER ::= { dot3ChipSets 4 }
            dot3ChipSetNational8390  OBJECT IDENTIFIER ::=
                                       { dot3ChipSetNational 1 }
            dot3ChipSetNationalSonic OBJECT IDENTIFIER ::=
                                       { dot3ChipSetNational 2 }

            dot3ChipSetFujitsu       OBJECT IDENTIFIER ::= { dot3ChipSets 5 }
            dot3ChipSetFujitsu86950  OBJECT IDENTIFIER ::=
                                       { dot3ChipSetFujitsu 1 }

            dot3ChipSetDigital       OBJECT IDENTIFIER ::= { dot3ChipSets 6 }
            dot3ChipSetDigitalDC21040  OBJECT IDENTIFIER ::=
                                       { dot3ChipSetDigital 1 }

            -- For those chipsets not represented above, OBJECT IDENTIFIER
            -- assignment is required in other documentation, e.g., assignment
            -- within that part of the registration tree delegated to
            -- individual enterprises (see RFC 1155).

        END
