rfc1304.txt

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                      12.

                      - Invalid Header Extension - Version Element
                      Position, Length, or Value,

                      An error is considered to have occurred when a
                      Version element with Length=3, Type=0, and Value=1
                      does not appear first within the Header Extension,
                      or an element Type=0 appears somewhere other than



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RFC 1304                      SIP Objects                  February 1992


                      within the first three octets in the Header
                      Extension.

                      - Invalid Header Extension - Carrier Selection
                      Element Position, Length, Value or Format,

                      An error is considered to have occurred when a
                      Carrier Selection element does not appear second
                      within the Header Extension, if the Element Type
                      does not equal 1, the Element Length does not
                      equal 4, 6, or 8, the Element Value field is not
                      four BCD encoded decimal digits used in specifying
                      the Carrier Identification Code (CIC), or the
                      identified CIC code is invalid.

                      - Header Extension PAD Error

                      An error is considered to have occurred when the
                      Header Extension PAD is 9 octets in length, or if
                      the Header Extension PAD is greater than zero
                      octets in length and the Header Extension PAD does
                      not follow all Header Extension elements or does
                      not begin with at least one octet of all zeros.

                      - BEtag Mismatch Error,

                      An error is considered to have occurred when the
                      Beginning-End Tags in the SIP L3PDU header and
                      trailer are not equal.

                      - BAsize Field not equal to Length Field Error,

                      An error is considered to have occurred when the
                      value of the BAsize Field does not equal the value
                      of the Length Field.

                      - Incorrect Length Error, and

                      An error is considered to have occurred when the
                      the Length field value is not equal to the portion
                      of the SIP L3PDU which extends from the
                      Destination Address field up to and including the
                      CRC32 field (if present) or up to and including
                      the PAD field (if the CRC32 field is not present).
                      As an optional check, an error is considered to
                      have occurred when the length of a partially
                      received SIP L3PDU exceeds the BAsize value.




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                      - MRI Timeout Error.

                      An error is considered to have occurred when the
                      elapsed time between receipt of BOM and
                      corresponding EOM exceeds the value of the MRI
                      (Message Receive Interval) for a particular
                      transport signal format.

                      An entry is indexed by interface number and error
                      type, and contains Source Address, Destination
                      Address and a timestamp. All these errors are
                      counted in the sipL3Errors counter.  When
                      sipL3PDUErrorTimeStamp is equal to zero, the
                      SipL3PDUErrorEntry does not contain any valid
                      information."
              ::= { sipErrorLog 1 }

          sipL3PDUErrorEntry  OBJECT-TYPE
              SYNTAX SipL3PDUErrorEntry
              ACCESS  not-accessible
              STATUS  mandatory
              DESCRIPTION
                      "An entry in the service disagreement table."
              INDEX   { sipL3PDUErrorIndex, sipL3PDUErrorType }
              ::= { sipL3PDUErrorTable 1 }

          SipL3PDUErrorEntry ::= SEQUENCE {
              sipL3PDUErrorIndex
                  INTEGER,
              sipL3PDUErrorType
                  INTEGER,
              sipL3PDUErrorSA
                  SMDSAddress,
              sipL3PDUErrorDA
                  SMDSAddress,
              sipL3PDUErrorTimeStamp
                  TimeTicks
              }

          sipL3PDUErrorIndex OBJECT-TYPE
              SYNTAX  INTEGER (1..65535)
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The value of this object identifies the SIP port
                      interface for which this entry contains management
                      information.   The value of this object for a
                      particular interface has the same value as the



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                      ifIndex object, defined in RFC 1156 and RFC 1213,
                      for the same interface."
              ::= { sipL3PDUErrorEntry 1 }

          sipL3PDUErrorType OBJECT-TYPE
              SYNTAX  INTEGER {
                   erroredDAFieldFormat (1),
                   erroredSAFieldFormat (2),
                   invalidBAsizeFieldValue (3),
                   invalidHdrExtLength (4),
                   invalidHdrExtElementLength (5),
                   invalidHdrExtVersionElementPositionLenthOrValue (6),
           invalidHdrExtCarSelectElementPositionLenghtValueOrFormat (7),
                   hePADError (8),
                   beTagMismatch (9),
                   baSizeFieldNotEqualToLengthField (10),
                   incorrectLength (11),
                   mriTimeout (12)
              }
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The type of error."
              ::= { sipL3PDUErrorEntry 2 }

          sipL3PDUErrorSA OBJECT-TYPE
              SYNTAX  SMDSAddress
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A rejected SMDS source address."
              ::= { sipL3PDUErrorEntry 3 }

          sipL3PDUErrorDA OBJECT-TYPE
              SYNTAX  SMDSAddress
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "A rejected SMDS destination address."
              ::= { sipL3PDUErrorEntry 4 }

          sipL3PDUErrorTimeStamp OBJECT-TYPE
              SYNTAX  TimeTicks
              ACCESS  read-only
              STATUS  mandatory
              DESCRIPTION
                      "The timestamp for the service disagreement.  The
                      timestamp contains the value of sysUpTime at the



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                      latest occurrence of this type of service
                      disagreement.  See textual description under
                      sipL3PDUErrorTable for boundary conditions."
              ::= { sipL3PDUErrorEntry 5 }

          END

5.  Acknowledgments

   This document was produced by the SNMP Working Group.  In addition,
   the comments of the following individuals are also acknowledged: Ted
   Brunner, Jeff Case, Tracy Cox, Sherri Hiller, Steve Jaffe, Deirdre
   Kostick, Dave Piscitello, and Ron Reuss.

6.  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.

   [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.



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

  [10]  Rose, M., Editor, "A Convention for Defining Traps for use with
        the SNMP", RFC 1215, Performance Systems International, March
        1991.

  [11]  "Generic System Requirements in Support of Switched Multi-
        megabit Data Service", Bellcore Technical Reference, TR-TSV-
        000772, Issue 1, May 1991.

  [12]  "Local Access System Generic Requirements, Objectives, and
        Interfaces in Support of Switched Multi-megabit Data Service",
        Bellcore Technical Reference, TR-TSV-000773, Issue 1, June 1990.

  [13]  Baker F., and C. Kolb, Editors, "Definitions of Managed Objects
        for the DS1 Interface Type", RFC 1232, ACC, Performance Systems
        International, Inc., May 1991.

  [14]  Cox, T., and K. Tesink, Editors, "Definitions of Managed Objects
        for the DS3 Interface Type", RFC 1233, Bell Communications
        Research, May 1991.

  [15]  Piscitello, D., and J. Lawrence, Editors, The Transmission of IP
        Datagrams over the SMDS Service", RFC 1209, Bell Communications
        Research, March 1991.

  [16]  "Generic Requirements For SMDS Customer Network Management
        Service", TA-TSV-001062, Issue 1, February 1991, and Supplement
        1, April 1991.

  [17]  Reynolds, J., "Reassignment of Experimental MIBs to Standard
        MIBs", RFC 1239, USC/Information Sciences Institute, June 1991.

  [18]  Tesink, K., "Definitions of Managed Objects for SMDS
        Subscription", Version 1.0, Bellcore, March 1991.














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7.  Security Considerations

   Security issues are not discussed in this memo.

8.  Authors' Addresses

   Tracy A. Cox
   Bell Communications Research
   331 Newman Springs Road
   Red Bank, NJ  07701

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


   Kaj Tesink
   Bell Communications Research
   331 Newman Springs Road
   Red Bank, NJ  07701

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





























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