rfc1748.txt

RFC 的详细文档！

            frame in which the A and C bits were
            equal to 0, in units of 100
            micro-seconds."
    ::= { dot5TimerEntry 4 }

dot5TimerValidTransmit OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      obsolete
    DESCRIPTION
            "The time-out value used by the active
            monitor to detect the absence of valid
            transmissions, in units of 100
            micro-seconds."



McCloghrie & Decker                                            [Page 17]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


    ::= { dot5TimerEntry 5 }

dot5TimerNoToken  OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      obsolete
    DESCRIPTION
            "The time-out value used to recover from
            various-related error situations.
            If N is the maximum number of stations on
            the ring, the value of this timer is
            normally:
            dot5TimerReturnRepeat + N*dot5TimerHolding."
    ::= { dot5TimerEntry 6 }

dot5TimerActiveMon  OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      obsolete
    DESCRIPTION
            "The time-out value used by the active
            monitor to stimulate the enqueuing of an
            AMP PDU for transmission, in units of
            100 micro-seconds."
    ::= { dot5TimerEntry 7 }

dot5TimerStandbyMon  OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      obsolete
    DESCRIPTION
            "The time-out value used by the stand-by
            monitors to ensure that there is an active
            monitor on the ring and to detect a
            continuous stream of tokens, in units of
            100 micro-seconds."
    ::= { dot5TimerEntry 8 }

dot5TimerErrorReport  OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      obsolete
    DESCRIPTION
            "The time-out value which determines how
            often a station shall send a Report Error
            MAC frame to report its error counters,
            in units of 100 micro-seconds."
    ::= { dot5TimerEntry 9 }



McCloghrie & Decker                                            [Page 18]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


dot5TimerBeaconTransmit  OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      obsolete
    DESCRIPTION
            "The time-out value which determines how
            long a station shall remain in the state
            of transmitting Beacon frames before
            entering the Bypass state, in units of
            100 micro-seconds."
    ::= { dot5TimerEntry 10 }

dot5TimerBeaconReceive  OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      obsolete
    DESCRIPTION
            "The time-out value which determines how
            long a station shall receive Beacon
            frames from its downstream neighbor
            before entering the Bypass state, in
            units of 100 micro-seconds."
    ::= { dot5TimerEntry 11 }


--                802.5 Interface Tests

dot5Tests   OBJECT IDENTIFIER ::= { dot5 3 }

-- RFC 1573 defines the ifTestTable, through which a
-- network manager can instruct an agent to test an interface
-- for various faults.  A test to be performed is identified
-- as an OBJECT IDENTIFIER.

-- The Insert Function test

dot5TestInsertFunc  OBJECT-IDENTITY
    STATUS       current
    DESCRIPTION
        "Invoking this test causes the station to test the insert
        ring logic of the hardware if the station's lobe media
        cable is connected to a wiring concentrator.  Note that
        this command inserts the station into the network, and
        thus, could cause problems if the station is connected
        to a operational network."
    ::= { dot5Tests 1 }





McCloghrie & Decker                                            [Page 19]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


-- The Full-Duplex Loop Back test

dot5TestFullDuplexLoopBack OBJECT-IDENTITY
    STATUS       current
    DESCRIPTION
        "Invoking this test on a 802.5 interface causes the
        interface to check the path from memory through the
        chip set's internal logic and back to memory, thus
        checking the proper functioning of the system's
        interface to the chip set."
    ::= { dot5Tests 2 }


--              802.5 Hardware Chip Sets

-- RFC 1229 specified an object, ifExtnsChipSet, with the
-- syntax of OBJECT IDENTIFIER, to identify the hardware
-- chip set in use by an interface.  RFC 1573 obsoletes
-- the use of ifExtnsChipSet.  However, the following
-- definitions are retained for backwards compatibility.

dot5ChipSets   OBJECT IDENTIFIER ::= { dot5 4 }

dot5ChipSetIBM16  OBJECT-IDENTITY
    STATUS        current
    DESCRIPTION
        "IBM's 16/4 Mbs chip set."
    ::= { dot5ChipSets 1 }

dot5ChipSetTItms380 OBJECT-IDENTITY
    STATUS        current
    DESCRIPTION
        "Texas Instruments' TMS 380 4Mbs chip-set"
    ::= { dot5ChipSets 2 }

dot5ChipSetTItms380c16 OBJECT-IDENTITY
    STATUS        current
    DESCRIPTION
        "Texas Instruments' TMS 380C16 16/4 Mbs chip-set"
    ::= { dot5ChipSets 3 }











McCloghrie & Decker                                            [Page 20]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


-- conformance information

dot5Conformance OBJECT IDENTIFIER ::= { dot5 6 }

dot5Groups      OBJECT IDENTIFIER ::= { dot5Conformance 1 }
dot5Compliances OBJECT IDENTIFIER ::= { dot5Conformance 2 }


-- compliance statements

dot5Compliance MODULE-COMPLIANCE
    STATUS  current
    DESCRIPTION
        "The compliance statement for SNMPv2 entities
        which implement the IEEE 802.5 MIB."

    MODULE  -- this module
        MANDATORY-GROUPS { dot5StateGroup, dot5StatsGroup }

        OBJECT     dot5ActMonParticipate
        MIN-ACCESS read-only
        DESCRIPTION
            "Write access is not required."

        OBJECT     dot5Functional
        MIN-ACCESS read-only
        DESCRIPTION
            "Write access is not required."

    ::= { dot5Compliances 1 }


-- units of conformance

dot5StateGroup  OBJECT-GROUP
    OBJECTS   { dot5Commands, dot5RingStatus, dot5RingState,
                dot5RingOpenStatus, dot5RingSpeed, dot5UpStream,
                dot5ActMonParticipate, dot5Functional,
                dot5LastBeaconSent
              }
    STATUS    current
    DESCRIPTION
        "A collection of objects providing state information
        and parameters for IEEE 802.5 interfaces."
    ::= { dot5Groups 1 }

dot5StatsGroup  OBJECT-GROUP
    OBJECTS   { dot5StatsLineErrors, dot5StatsBurstErrors,



McCloghrie & Decker                                            [Page 21]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


                dot5StatsACErrors, dot5StatsAbortTransErrors,
                dot5StatsInternalErrors, dot5StatsLostFrameErrors,
                dot5StatsReceiveCongestions,
                dot5StatsFrameCopiedErrors, dot5StatsTokenErrors,
                dot5StatsSoftErrors, dot5StatsHardErrors,
                dot5StatsSignalLoss, dot5StatsTransmitBeacons,
                dot5StatsRecoverys, dot5StatsLobeWires,
                dot5StatsRemoves, dot5StatsSingles,
                dot5StatsFreqErrors
              }
    STATUS    current
    DESCRIPTION
        "A collection of objects providing statistics for
        IEEE 802.5 interfaces."
    ::= { dot5Groups 2 }

END


































McCloghrie & Decker                                            [Page 22]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


5.  Acknowledgements

   The changes from RFC 1231 are the result of discussions on the IETF's
   snmp mailing-list and in the Interfaces MIB Working Group.

6.  References

   [1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure
       of Management Information for version 2 of the Simple Network
       Management Protocol (SNMPv2)", RFC 1442, SNMP Research,Inc.,
       Hughes LAN Systems, Dover Beach Consulting, Inc., Carnegie Mellon
       University, April 1993.

   [2] 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.

   [3] Galvin, J., and K. McCloghrie, "Administrative Model for version
       2 of the Simple Network Management Protocol (SNMPv2)", RFC 1445,
       Trusted Information Systems, Hughes LAN Systems, April 1993.

   [4] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol
       Operations for version 2 of the Simple Network Management
       Protocol (SNMPv2)", RFC 1448, SNMP Research,Inc., Hughes LAN
       Systems, Dover Beach Consulting, Inc., Carnegie Mellon
       University, April 1993.

   [5] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual
       Conventions for version 2 of the Simple Network Management
       Protocol (SNMPv2)", RFC 1443, SNMP Research,Inc., Hughes LAN
       Systems, Dover Beach Consulting, Inc., Carnegie Mellon
       University, April 1993.

   [6] McCloghrie, K., and F. Kastenholz, "Evolution of the Interfaces
       Group of MIB-II", RFC 1573, Hughes LAN Systems, FTP Software, Jan
       1994

   [7] Institute of Electrical and Electronic Engineers, "Token Ring
       Access Method and Physical Layer Specifications", IEEE Standard
       802.5-1989, 1989.










McCloghrie & Decker                                            [Page 23]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


APPENDIX A - Changes from RFC 1231

   This memo has the following differences from RFC 1231:

   (1)  This memo is formatted using the SNMPv2 SMI.

   (2)  The relationship of the "open" and "close" states of
        dot5Commands to the value of ifAdminStatus has been
        clarified.  In particular, the setting of one affects the
        value of the other.

   (3)  The relationship dot5RingSpeed and ifSpeed has been
        clarified.  In particular, ifSpeed indicates the current
        ring-speed; dot5RingSpeed indicates the ring-speed at the
        next insertion into the ring.  If the interface doesn't
        support changing ring-speed, then dot5RingSpeed can only be
        set to its current value.  When dot5RingSpeed has the value
        'unknown(1)', the ring-speed is to be set to the ring's
        actual ring-speed.

   (4)  Write-access to dot5ActMonParticipate is not required, and a
        change to the value of dot5ActMonParticipate does not take
        effect until the next Active Monitor election.

   (5)  Write-access to dot5Functional is not required.

   (6)  A new object, dot5LastBeaconSent has been defined to contain
        the timestamp of the last beacon frame sent.

   (7)  The dot5TimerTable has been designated as obsolete.

   (8)  Text has been added describing the applicability of RFC 1573
        [6] to 802.5 interfaces.

   (9)  Other minor editorial changes.

Security Considerations

   Security issues are not discussed in this memo.












McCloghrie & Decker                                            [Page 24]

RFC 1748               IEEE 802.5 MIB using SMIv2          December 1994


Authors' Addresses

   Keith McCloghrie
   cisco Systems, Inc.
   170 West Tasman Drive,
   San Jose, CA 95134-1706

   Phone: [phone]
   EMail: [e-mail]


   Eric B. Decker
   cisco Systems, Inc.
   1525 O'Brien Dr.
   Menlo Park, CA 94025

   Phone: [phone]
   EMail: [e-mail]

































McCloghrie & Decker                                            [Page 25]