etherlike-mib.mib

EPON MIB库源码

                       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.

                       For interfaces operating at 10 Gb/s, this
                       counter can roll over in less than 5 minutes if
                       it is incrementing at its maximum rate.  Since
                       that amount of time could be less than a
                       management station's poll cycle time, in order
                       to avoid a loss of information, a management
                       station is advised to poll the
                       dot3HCStatsInternalMacReceiveErrors object for
                       10 Gb/s or faster interfaces.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of ifCounterDiscontinuityTime."
           REFERENCE   "[IEEE 802.3 Std.], 30.3.1.1.15,
                       aFramesLostDueToIntMACRcvError."
           ::= { dot3StatsEntry 16 }

       dot3StatsEtherChipSet OBJECT-TYPE
           SYNTAX      OBJECT IDENTIFIER
           MAX-ACCESS  read-only
           STATUS      deprecated
           DESCRIPTION "******** THIS OBJECT IS DEPRECATED ********

                       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.

                       This object has been deprecated.  Implementation
                       feedback indicates that it is of limited use for
                       debugging network problems in the field, and
                       the administrative overhead involved in
                       maintaining a registry of chipset OIDs is not
                       justified."
           ::= { dot3StatsEntry 17 }

       dot3StatsSymbolErrors OBJECT-TYPE
           SYNTAX      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "For an interface operating at 100 Mb/s, the
                       number of times there was an invalid data symbol
                       when a valid carrier was present.

                       For an interface operating in half-duplex mode
                       at 1000 Mb/s, the number of times the receiving
                       media is non-idle (a carrier event) for a period
                       of time equal to or greater than slotTime, and
                       during which there was at least one occurrence
                       of an event that causes the PHY to indicate
                       'Data reception error' or 'carrier extend error'
                       on the GMII.

                       For an interface operating in full-duplex mode
                       at 1000 Mb/s, the number of times the receiving
                       media is non-idle (a carrier event) for a period
                       of time equal to or greater than minFrameSize,
                       and during which there was at least one
                       occurrence of an event that causes the PHY to
                       indicate 'Data reception error' on the GMII.

                       For an interface operating at 10 Gb/s, the
                       number of times the receiving media is non-idle
                       (a carrier event) for a period of time equal to
                       or greater than minFrameSize, and during which
                       there was at least one occurrence of an event
                       that causes the PHY to indicate 'Receive Error'
                       on the XGMII.

                       The count represented by an instance of this
                       object is incremented at most once per carrier
                       event, even if multiple symbol errors occur
                       during the carrier event.  This count does
                       not increment if a collision is present.

                       This counter does not increment when the
                       interface is operating at 10 Mb/s.

                       For interfaces operating at 10 Gb/s, this
                       counter can roll over in less than 5 minutes if
                       it is incrementing at its maximum rate.  Since
                       that amount of time could be less than a
                       management station's poll cycle time, in order
                       to avoid a loss of information, a management
                       station is advised to poll the
                       dot3HCStatsSymbolErrors object for 10 Gb/s
                       or faster interfaces.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of ifCounterDiscontinuityTime."
           REFERENCE   "[IEEE 802.3 Std.], 30.3.2.1.5,
                       aSymbolErrorDuringCarrier."
           ::= { dot3StatsEntry 18 }

       dot3StatsDuplexStatus OBJECT-TYPE
           SYNTAX      INTEGER {
                           unknown(1),
                           halfDuplex(2),
                           fullDuplex(3)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "The current mode of operation of the MAC
                       entity.  'unknown' indicates that the current
                       duplex mode could not be determined.

                       Management control of the duplex mode is
                       accomplished through the MAU MIB.  When
                       an interface does not support autonegotiation,
                       or when autonegotiation is not enabled, the
                       duplex mode is controlled using
                       ifMauDefaultType.  When autonegotiation is
                       supported and enabled, duplex mode is controlled
                       using ifMauAutoNegAdvertisedBits.  In either
                       case, the currently operating duplex mode is
                       reflected both in this object and in ifMauType.

                       Note that this object provides redundant
                       information with ifMauType.  Normally, redundant
                       objects are discouraged.  However, in this
                       instance, it allows a management application to
                       determine the duplex status of an interface
                       without having to know every possible value of
                       ifMauType.  This was felt to be sufficiently
                       valuable to justify the redundancy."
           REFERENCE   "[IEEE 802.3 Std.], 30.3.1.1.32,
                       aDuplexStatus."
           ::= { dot3StatsEntry 19 }
       dot3StatsRateControlAbility OBJECT-TYPE
           SYNTAX      TruthValue
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "'true' for interfaces operating at speeds above
                       1000 Mb/s that support Rate Control through
                       lowering the average data rate of the MAC
                       sublayer, with frame granularity, and 'false'
                       otherwise."
           REFERENCE   "[IEEE 802.3 Std.], 30.3.1.1.33,
                       aRateControlAbility."
           ::= { dot3StatsEntry 20 }

       dot3StatsRateControlStatus OBJECT-TYPE
           SYNTAX      INTEGER {
                           rateControlOff(1),
                           rateControlOn(2),
                           unknown(3)
                       }
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION "The current Rate Control mode of operation of
                       the MAC sublayer of this interface."
           REFERENCE   "[IEEE 802.3 Std.], 30.3.1.1.34,
                       aRateControlStatus."
           ::= { dot3StatsEntry 21 }

       -- 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
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "A collection of collision histograms for a
                       particular set of interfaces."
           REFERENCE   "[IEEE 802.3 Std.], 30.3.1.1.30,
                       aCollisionFrames."
           ::= { dot3 5 }

       dot3CollEntry OBJECT-TYPE
           SYNTAX      Dot3CollEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           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        Integer32,
               dot3CollFrequencies  Counter32
           }

       -- { dot3CollEntry 1 } is no longer in use

       dot3CollCount OBJECT-TYPE
           SYNTAX      Integer32 (1..16)
           MAX-ACCESS  not-accessible
           STATUS      current
           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      Counter32
           MAX-ACCESS  read-only
           STATUS      current
           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.

                       This counter does not increment when the
                       interface is operating in full-duplex mode.

                       Discontinuities in the value of this counter can
                       occur at re-initialization of the management
                       system, and at other times as indicated by the
                       value of ifCounterDiscontinuityTime."
           ::= { dot3CollEntry 3 }

       dot3ControlTable OBJECT-TYPE
           SYNTAX      SEQUENCE OF Dot3ControlEntry
           MAX-ACCESS  not-accessible
           STATUS      current
           DESCRIPTION "A table of descriptive and status information
                       about the MAC Control sublayer on the
                       ethernet-like interfaces attached to a
                       particular system.  There will be one row in
                       this table for each ethernet-like interface in