rfc1232.txt

<VC++网络游戏建摸与实现>源代码

RFC 1232                 DS1 Interface Objects                  May 1991


                      Unavailable Seconds, as defined by ANSI Draft
                      Standard T1M1.3/90 - 027R2[15], encountered by a
                      DS1 CSU in the previous 24 hour interval."
              ::= { ds1TotalEntry 5 }

          ds1TotalCSSs OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The counter associated with the number of
                      Controlled Slip Seconds, as defined by ANSI Draft
                      Standard T1M1.3/90 - 027R2[15], encountered by a
                      DS1 CSU in the previous 24 hour interval."
              ::= { ds1TotalEntry 6 }

          ds1TotalBPVs OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The counter associated with the number of Bipolar
                      Violations, as defined by ANSI Draft Standard
                      T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
                      the previous 24 hour interval."
              ::= { ds1TotalEntry 7 }

          ds1TotalCVs OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The counter associated with the number of Code
                      Violation Error Events, as defined by ANSI Draft
                      Standard T1M1.3/90 - 027R2[15], encountered by a
                      DS1 CSU in the previous 24 hour interval.

                      Note that D4 and G.704 (section 2.1.3.2)
                      interfaces do not support Code Violation Error
                      Events.  Accordingly, such agents may treat this
                      object as having an ACCESS clause value of not-
                      accessible."
              ::= { ds1TotalEntry 8 }


          -- the DS1 Fractional group

          -- Implementation of this group is mandatory for those



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RFC 1232                 DS1 Interface Objects                  May 1991


          -- systems utilizing a fractional DS1 capability


          -- The DS1 fractional table contains identifies which DS1
          -- channels associated with a CSU are being used to support a
          -- logical interface, i.e., an entry in the interfaces table
          -- from the Internet-standard MIB.  For Clear Channel
          -- implementations, exactly one ifTable entry corresponds to
          -- the CSU being managed.  In this very typical case, the
          -- variable ds1Index indicates the value of ifIndex which
          -- corresponds to the interface being supported by a
          -- particular CSU.

          -- However, for fractional DS1 implementations, the
          -- correspondent value of ds1Index is 0, and for each DS1
          -- channel supporting a logical interface, there is an entry
          -- in the DS1 fractional table which names a value for
          -- ifIndex.
          --
          --      For ds1ESF, ds1D4, and ds1ANSI-ESF, there are 24 legal
          --      channels, numbered 1 through 24.
          --
          --      For G.704, there are 32 legal channels, numbered 1
          --      through 32.  ds1G704 can carry user data in channels 2
          --      through 32, channel 1 being an overhead channel.
          --      ds1G704-CRC can carry user data in channels 2 through
          --      16 and 18 through 32, channels 1 and 17 being overhead
          --      channels.

          ds1FracTable OBJECT-TYPE
              SYNTAX  SEQUENCE OF DS1FracEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "The DS1 Fractional table."
              ::= { ds1 5 }

          ds1FracEntry OBJECT-TYPE
              SYNTAX  DS1FracEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "An entry in the DS1 Fractional table."
              INDEX   { ds1FracIndex, ds1FracNumber }
              ::= { ds1FracTable 1 }

          DS1FracEntry ::=
              SEQUENCE {



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RFC 1232                 DS1 Interface Objects                  May 1991


                  ds1FracIndex
                      INTEGER,
                  ds1FracNumber
                      INTEGER (1..32),
                  ds1FracIfIndex
                      INTEGER
              }

          ds1FracIndex OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The index value which uniquely identifies the CSU
                      to which this entry is applicable.  The interface
                      identified by a particular value of this index is
                      the same interface as identified by the same value
                      an ds1CSUIndex object instance."
              ::= { ds1FracEntry 1 }

          ds1FracNumber OBJECT-TYPE
              SYNTAX  INTEGER (1..32)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The channel number for this entry."
              ::= { ds1FracEntry 2 }

          ds1FracIfIndex OBJECT-TYPE
              SYNTAX  INTEGER
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "An index value that uniquely identifies an
                      interface to a ds1.  The interface identified by a
                      particular value of this index is the same
                      interface as identified by the same value an
                      ifIndex object instance."
              ::= { ds1FracEntry 3 }

          END










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RFC 1232                 DS1 Interface Objects                  May 1991


6.  Acknowledgements

   This document was produced by the SNMP and the Transmission MIB
   Working Groups:

               Anne Ambler, Spider
               Karl Auerbach, Sun
               Fred Baker, ACC
               Ken Brinkerhoff
               Ron Broersma, NOSC
               Jack Brown, US Army
               Theodore Brunner, Bellcore
               Jeffrey Buffum, HP
               Jeffrey D. Case, UTK
               Chris Chiptasso, Spartacus
               Paul Ciarfella, DEC
               Bob Collet
               Tracy Cox, Bellcore
               James R. Davin, MIT-LCS
               Kurt Dobbins, Cabletron
               Nadya El-Afandi, Network Systems
               Gary Ellis, HP
               Fred Engle
               Mike Erlinger
               Richard Fox, Synoptics
               Karen Frisa, CMU
               Chris Gunner, DEC
               Ken Hibbard, Xylogics
               Ole Jacobsen, Interop
               Ken Jones
               Satish Joshi, Synoptics
               Frank Kastenholz, Racal-Interlan
               Shimshon Kaufman, Spartacus
               Jim Kinder, Fibercom
               Alex Koifman, BBN
               Christopher Kolb, PSI
               Cheryl Krupczak, NCR
               Peter Lin, Vitalink
               John Lunny, TWG
               Carl Malamud
               Keith McCloghrie, HLS
               Donna McMaster, David Systems
               Lynn Monsanto, Sun
               Dave Perkins, 3COM
               Jim Reinstedler, Ungerman Bass
               Anil Rijsinghani, DEC
               Kary Robertson
               Marshall T. Rose, PSI (chair)



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RFC 1232                 DS1 Interface Objects                  May 1991


               L. Michael Sabo, NCSC
               Jon Saperia, DEC
               John Seligson
               Fei Shu, NEC
               Sam Sjogren, TGV
               Mark Sleeper, Sparta
               Lance Sprung
               Mike St.Johns
               Bob Stewart, Xyplex
               Emil Sturniold
               Kaj Tesink, Bellcore
               Dean Throop, Data General
               Bill Townsend, Xylogics
               Maurice Turcotte
               Kannan Varadhou
               Sudhanshu Verma, HP
               Warren Vik, Interactive Systems
               David Waitzman, BBN
               Steve Waldbusser, CMU
               Dan Wintringhan
               David Wood
               Jeff Young, Cray Research

7.  References

   [1] Cerf, V., "IAB Recommendations for the Development of Internet
       Network Management Standards", RFC 1052, NRI, April 1988.

   [2] Cerf, V., "Report of the Second Ad Hoc Network Management Review
       Group", RFC 1109, NRI, August 1989.

   [3] Rose M., and K. McCloghrie, "Structure and Identification of
       Management Information for TCP/IP-based internets", RFC 1155,
       Performance Systems International, Hughes LAN Systems, May 1990.

   [4] McCloghrie K., and M. Rose, "Management Information Base for
       Network Management of TCP/IP-based internets", RFC 1156, Hughes
       LAN Systems, Performance Systems International, May 1990.

   [5] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
       Network Management Protocol", RFC 1157, SNMP Research,
       Performance Systems International, Performance Systems
       International, MIT Laboratory for Computer Science, May 1990.

   [6] McCloghrie K., and M. Rose, Editors, "Management Information Base
       for Network Management of TCP/IP-based internets", RFC 1213,
       Performance Systems International, March 1991.




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RFC 1232                 DS1 Interface Objects                  May 1991


   [7] Information processing systems - Open Systems Interconnection -
       Specification of Abstract Syntax Notation One (ASN.1),
       International Organization for Standardization, International
       Standard 8824, December 1987.

   [8] Information processing systems - Open Systems Interconnection -
       Specification of Basic Encoding Rules for Abstract Notation One
       (ASN.1), International Organization for Standardization,
       International Standard 8825, December 1987.

   [9] AT&T Information Systems, AT&T ESF DS1 Channel Service Unit
       User's Manual, 999-100-305, February 1988.

  [10] AT&T Technical Reference, Requirements for Interfacing Digital
       Terminal Equipment to Services Employing the Extended Superframe
       Format, Publication 54016, May 1988.

  [11] CCITT Specifications Volume III, Recommendation G.703,
       Physical/Electrical Characteristics of Hierarchical Digital
       Interfaces, July 1988.

  [12] CCITT Specifications Volume III, Recommendation G.704,
       Synchronous frame structures used at primary and secondary
       hierarchical levels, July 1988.

  [13] Rose, M., and K. McCloghrie, Editors, "Concise MIB Definitions",
       RFC 1212, Performance Systems International, Hughes LAN Systems,
       March 1991.

  [14] ANSI T1.403-1989 American National Standard for
       Telecommunications -- Carrier-to-Customer Installation -- DS1
       Metallic Interface.

  [15] ANSI T1M1.3/90 - 027R2 Draft Proposed Standard -- Description of
       Installation and Maintenance Parameters for Digital Circuits,
       Facilities, and Networks.

  [16] Bell System Techical Reference, Publication 62411, High Capacity
       Digital Service Channel Interface Specification, September 1983.

  [17] Bell System Technical Reference, Publication 43801, "Digital
       Channel Bank Requirements and Objectives", November 1982.

8.  Security Considerations

   Security issues are not discussed in this memo.





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RFC 1232                 DS1 Interface Objects                  May 1991


9.  Authors' Addresses

   Fred Baker
   Advanced Computer Communications, Inc.
   720 Santa Barbara Street
   Santa Barbara, California  93101

   Phone: [phone]

   EMail: [e-mail]


   Christopher P. Kolb
   Performance Systems International, Inc.
   Reston International Center
   11800 Sunrise Valley Drive
   Suite 1100
   Reston, VA 22091

   Phone: [phone]

   EMail: [e-mail]





























Transmission MIB Working Group                                 [Page 28]