rfc1284.mib

wm PNE 3.3 source code, running at more than vxworks6.x version.

                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 or
                ifOutNUcastPkts object and is not counted by the
                corresponding instance of the
                dot3StatsMultipleCollisionFrames object."
       ::= { 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 or
                ifOutNUcastPkts object and is not counted by the
                corresponding instance of the
                dot3StatsSingleCollisionFrames object."
        ::= { 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 [12] and its generation is
                described in section 7.2.4.6 of the same
                document."
        ::= { 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."
        ::= { 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."
        ::= { 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."
        ::= { 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, the
                dot3StatsCarrierSenseErrors object, or the
                dot3StatsExcessiveDeferrals 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."
        ::= { 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."
        ::= { dot3StatsEntry 11 }

    dot3StatsExcessiveDeferrals OBJECT-TYPE
        SYNTAX  Counter
        ACCESS  read-only
        STATUS  mandatory
        DESCRIPTION
                "A count of frames for which transmission on a
                particular interface is deferred for an excessive
                period of time."
        ::= { dot3StatsEntry 12 }

    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 [9], counted exclusively
                according to the error status presented to the
                LLC."
        ::= { dot3StatsEntry 13 }

    dot3StatsInRangeLengthErrors OBJECT-TYPE
        SYNTAX  Counter
        ACCESS  read-only
        STATUS  mandatory
        DESCRIPTION
                "A count of frames received on a particular
                interface with a length field value that falls
                between the minimum unpadded LLC data size and the
                maximum allowed LLC data size inclusive and that
                does not match the number of LLC data octets
                received.

                The count represented by an instance of this
                object also includes frames for which the length
                field value is less than the minimum unpadded LLC
                data size."
        ::= { dot3StatsEntry 14 }

    dot3StatsOutOfRangeLengthFields OBJECT-TYPE
        SYNTAX  Counter
        ACCESS  read-only
        STATUS  mandatory
        DESCRIPTION
                "A count of frames received on a particular
                interface for which the length field value exceeds
                the maximum allowed LLC data size.

                The count represented by an instance of this
                object is not incremented in implementations that
                observe Ethernet encapsulation conventions (by
                which the IEEE 802.3 length field is interpreted
                as the Ethernet Type field)."
        ::= { dot3StatsEntry 15 }

    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, the
                dot3StatsFCSErrors object, the
                dot3StatsInRangeLengthErrors object, or the
                dot3StatsOutOfRangeLengthFields 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."
        ::= { dot3StatsEntry 16 }


    -- 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   { dot3CollIndex, dot3CollCount }
        ::= { dot3CollTable 1 }

    Dot3CollEntry ::=
        SEQUENCE {
            dot3CollIndex
                INTEGER,
            dot3CollCount
                INTEGER,
            dot3CollFrequencies
                Counter
        }

    dot3CollIndex OBJECT-TYPE
        SYNTAX  INTEGER
        ACCESS  read-only
        STATUS  mandatory
        DESCRIPTION
                "The index value that uniquely identifies the
                interface to which a particular collision
                histogram cell pertains.  The interface identified
                by a particular value of this index is the same
                interface as identified by the same value of
                ifIndex."
        ::= { dot3CollEntry 1 }

    dot3CollCount OBJECT-TYPE
        SYNTAX  INTEGER (1..16)
        ACCESS  read-only
        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 is accompanied by a
                particular number of media collisions."
        ::= { dot3CollEntry 3 }


    --  802.3 Tests

    -- The ifExtnsTestTable defined in [11] provides a common means
    -- for a manager to test any interface corresponding to a value
    -- of ifIndex.

    -- At this time, one well known test (testFullDuplexLoopBack) is
    -- defined in [11].  For ethernet-like interfaces, this test
    -- configures the MAC chip and executes an internal loopback
    -- test of memory 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.

    -- If an error occurs during a test, the object ifExtnsTestResult
    -- (defined in [11]) will be set to failed(7).  The following two
    -- OBJECT IDENTIFIERs may be used to provided more information as
    -- values for the object ifExtnsTestCode in [11]:

    dot3Errors             OBJECT IDENTIFIER ::= { dot3 7 }

                              -- 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 }


    --  TDR Test

    -- Another test, specific to ethernet-like interfaces,
    -- is Time-domain Reflectometry (TDR) which is defined
    -- as follows:

    dot3Tests   OBJECT IDENTIFIER ::= { dot3 6 }
    dot3TestTdr OBJECT IDENTIFIER ::= { dot3Tests 1 }

    -- A TDR test returns as its result the time interval between the
    -- most recent TDR test transmission and the subsequent detection
    -- of a collision.  This interval is based on a 10 MHz clock and
    -- should be normalized if the time base is other than 10 MHz.
    -- On successful completion of a TDR test, the result is stored
    -- as the value of the appropriate instance of the MIB object
    -- dot3TestTdrValue, and the OBJECT IDENTIFIER of that instance
    -- is stored in the corresponding instance of ifExtnsTestResult
    -- (thereby indicating where the result has been stored).


   --  802.3 Hardware Chipsets

   -- The object ifExtnsChipSet is provided in [11] 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 }

   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 }

   -- 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 [3]).
   END