SIP-MIB DEFINITIONS ::= BEGIN


          IMPORTS
             MODULE-IDENTITY, OBJECT-TYPE, Counter32,
             Integer32, IpAddress                     FROM SNMPv2-SMI
             TimeStamp, TEXTUAL-CONVENTION            FROM SNMPv2-TC
             MODULE-COMPLIANCE, OBJECT-GROUP          FROM SNMPv2-CONF
             transmission, ifIndex, mib-2             FROM RFC1213-MIB;

          --  This is the MIB module for the SMDS Interface objects.

          sipMIB MODULE-IDENTITY
              LAST-UPDATED "9403311818Z"
              ORGANIZATION "IETF Interfaces Working Group"
              CONTACT-INFO
                "        Tracy Brown
                 Postal: Bell Communications Research
                         331 Newman Springs Road
                         P.O. Box 7020
                         Red Bank, NJ  07701-7020
                         US

                    Tel: +1 908  758-2107
                    Fax: +1 908  758-4177
                 E-mail: tacox@mail.bellcore.com

                         Kaj Tesink
                 Postal: Bell Communications Research
                         331 Newman Springs Road
                         P.O. Box 7020
                         Red Bank, NJ  07701-7020
                         US

                    Tel: +1 908 758 5254
                    Fax: +1 908 758 4177
                 E-mail: kaj@cc.bellcore.com."
              DESCRIPTION
                   "The MIB module to describe
                   SMDS interfaces objects."
              ::= { mib-2 36 }

          SMDSAddress ::= TEXTUAL-CONVENTION
              DISPLAY-HINT "1h:"
              STATUS       current
              DESCRIPTION
                  "The 60-bit SMDS address,





                   preceded by 4 bits with the following values:
                   1100 when representing an individual address
                   1110 when representing a group address."
              SYNTAX  OCTET STRING (SIZE (8))

          IfIndex ::= TEXTUAL-CONVENTION
            STATUS  current
            DESCRIPTION
              "The value of this object identifies the
              interface for which this entry contains
              management information.  The value of this
              object for a particular interface has the same
              value as the ifIndex object, defined in RFC
              1213, for the same interface."
            SYNTAX Integer32


          sip     OBJECT IDENTIFIER ::= { transmission 31 }
          sipMIBObjects   OBJECT IDENTIFIER ::= { sipMIB 1 }


          -- The SIP Level 3 Group

          sipL3Table  OBJECT-TYPE
              SYNTAX      SEQUENCE OF SipL3Entry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This table contains SIP L3 parameters and
                 state variables, one entry per SIPL3 interface."
             ::= { sip 1 }

          sipL3Entry  OBJECT-TYPE
              SYNTAX      SipL3Entry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This list contains SIP L3 parameters and
                 state variables."
             INDEX   { sipL3Index }
             ::= { sipL3Table 1 }

          SipL3Entry  ::= SEQUENCE {
              sipL3Index                        IfIndex,
              sipL3ReceivedIndividualDAs        Counter32,
              sipL3ReceivedGAs                  Counter32,
              sipL3UnrecognizedIndividualDAs    Counter32,
              sipL3UnrecognizedGAs              Counter32,





              sipL3SentIndividualDAs            Counter32,
              sipL3SentGAs                      Counter32,
              sipL3Errors                       Counter32,
              sipL3InvalidSMDSAddressTypes      Counter32,
              sipL3VersionSupport               Integer32
             }

          sipL3Index  OBJECT-TYPE
              SYNTAX      IfIndex
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the SIP
                 L3 interface for which this entry contains
                 management information. "
             ::= { sipL3Entry 1 }

          sipL3ReceivedIndividualDAs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
          -- Moved to ifTable
          -- ifInUcastPkts defined in [9] must be used instead.
              DESCRIPTION
                 "The total number of individually addressed SIP
                 Level 3 PDUs received from the remote system
                 across the SNI.  The total includes only
                 unerrored L3PDUs."
             ::= { sipL3Entry 2 }

          sipL3ReceivedGAs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
          -- Moved to ifTable
          -- ifInMulticastPkts defined in [9] must be used instead.
              DESCRIPTION
                 "The total number of group addressed SIP Level 3
                 PDUs received from the remote system across the
                 SNI.  The total includes only unerrored L3PDUs."
             ::= { sipL3Entry 3 }

          sipL3UnrecognizedIndividualDAs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
              DESCRIPTION
                 "The number of SIP Level 3 PDUs received from the





                 remote system with invalid or unknown individual
                 destination addresses (Destination Address
                 Screening violations are not included).  See SMDS
                 Subscription MIB module."
              ::= { sipL3Entry 4 }

          sipL3UnrecognizedGAs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
              DESCRIPTION
                 "The number of SIP Level 3 PDUs received from the
                 remote system with invalid or unknown group
                 addresses.  (Destination Address Screening
                 violations are not included).  See SMDS
                 Subscription MIB module."
              ::= { sipL3Entry 5 }

          sipL3SentIndividualDAs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
          -- Moved to ifTable
          -- ifOutUcastPkts defined in [9] must be used instead.
              DESCRIPTION
                 "The number of individually addressed SIP Level 3
                 PDUs that have been sent by this system across the
                 SNI."
              ::= { sipL3Entry 6 }

          sipL3SentGAs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
          -- Moved to ifTable
          -- ifOutMulticastPkts defined in [9] must be used instead.
              DESCRIPTION
                 "The number of group addressed SIP L3PDUs that
                 have been sent by this system across the SNI."
              ::= { sipL3Entry 7 }

          -- The total number of SIP L3PDU errors can be calculated as
          -- (Syntactic errors + Semantic Service errors )
          -- Syntactic errors include:
          --    sipL3Errors
          -- Latest occurrences of syntactic error types are logged in
          --    sipL3PDUErrorTable.
          -- Semantic Service errors include:





          --    sipL3UnrecognizedIndividualDAs
          --    sipL3UnrecognizedGAs
          --    sipL3InvalidSMDSAddressTypes
          -- Note that public networks supporting SMDS may discard
          -- SIP L3PDUs due to subscription violations.  Related
          -- managed objects are defined in Definitions of Managed
          -- Objects for SMDS Subscription.

          sipL3Errors OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
          -- Moved to ifTable
          -- ifInErrors defined in [9] must be used instead.
              DESCRIPTION
                 "The total number of SIP Level 3 PDUs received
                 from the remote system that were discovered to
                 have errors (including protocol processing and bit
                 errors but excluding addressing-related errors)
                 and were discarded.  Includes both group addressed
                 L3PDUs and L3PDUs containing an individual
                 destination address."
              ::= { sipL3Entry 8 }

          sipL3InvalidSMDSAddressTypes OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      deprecated
          -- Moved to ifTable
          -- ifInUnknownProtos defined in [9] must be used instead.
              DESCRIPTION
                 "The number of SIP Level 3 PDUs received from the
                 remote system that had the Source or Destination
                 Address_Type subfields, (the four most significant
                 bits of the 64 bit address field), not equal to
                 the value 1100 or 1110.  Also, an error is
                 considered to have occurred if the Address_Type
                 field for a Source Address, the four most
                 significant bits of the 64 bits, is equal to 1110
                 (a group address)."
              ::= { sipL3Entry 9 }

          sipL3VersionSupport  OBJECT-TYPE
              SYNTAX      Integer32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "A value which indicates the version(s) of SIP





                 that this interface supports.  The value is a sum.
                 This sum initially takes the value zero.  For each
                 version, V, that this interface supports, 2 raised
                 to (V - 1) is added to the sum. For example, a
                 port supporting versions 1 and 2 would have a
                 value of (2^(1-1)+2^(2-1))=3.  The
                 sipL3VersionSupport is effectively a bit mask with
                 Version 1 equal to the least significant bit
                 (LSB)."
              ::= { sipL3Entry 10 }


          -- The SIP Level 2 Group

          sipL2Table  OBJECT-TYPE
              SYNTAX      SEQUENCE OF SipL2Entry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This table contains SIP L2PDU parameters and
                 state variables, one entry per SIP L2 interface."
              ::= { sip 2 }

          sipL2Entry  OBJECT-TYPE
              SYNTAX      SipL2Entry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This list contains SIP L2 parameters and state
                 variables."
              INDEX   { sipL2Index }
              ::= { sipL2Table 1 }

          SipL2Entry  ::= SEQUENCE {
              sipL2Index                     IfIndex,
              sipL2ReceivedCounts            Counter32,
              sipL2SentCounts                Counter32,
              sipL2HcsOrCRCErrors            Counter32,
              sipL2PayloadLengthErrors       Counter32,
              sipL2SequenceNumberErrors      Counter32,
              sipL2MidCurrentlyActiveErrors  Counter32,
              sipL2BomOrSSMsMIDErrors        Counter32,
              sipL2EomsMIDErrors             Counter32
            }

          sipL2Index  OBJECT-TYPE
              SYNTAX      IfIndex
              MAX-ACCESS  read-only





              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the SIP
                 interface for which this entry contains management
                 information."
              ::= { sipL2Entry 1 }

          sipL2ReceivedCounts OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The number of SIP Level 2 PDUs received from the
                 remote system across the SNI. The total includes
                 only unerrored L2PDUs."
              ::= { sipL2Entry 2 }

          sipL2SentCounts OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The number of SIP Level 2 PDUs that have been
                 sent by this system across the SNI."
              ::= { sipL2Entry 3 }

          -- The following error types are counted, and
          -- preclude sipL2ReceivedCounts to be incremented:
          --    sipL2HcsOrCRCErrors
          --    sipL2PayloadLengthErrors
          --    sipL2SequenceNumberErrors
          --    sipL2BomOrSSMsMIDErrors
          --    sipL2EomsMIDErrors
          -- The receipt of SIP Level 2 PDUs which are BOMs and
          -- for with a MID that is already active will cause
          -- sipL2MidCurrentlyActiveErrors to increment.
          -- Any already accumulated (correct) segmentation
          -- units are discarded.The sipL2ReceivedCounts
          -- is incremented by 1. Thus,
          -- sipL2ReceivedCounts defines the number of
          -- correct SIP Level 2 PDUs delivered to the reassembly
          -- process.

          sipL2HcsOrCRCErrors  OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION





                 "The number of received SIP Level 2 PDUs that were
                 discovered to have either a Header Check Sequence
                 error or a Payload CRC violation."
              ::= { sipL2Entry 4 }

          sipL2PayloadLengthErrors  OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The number of received SIP Level 2 PDUs that had
                 Payload Length errors that fall in the following
                 specifications:
                 - SSM L2_PDU payload length field value less
                 - than 28 octets or greater than 44 octets,

                 - BOM or COM L2_PDU payload length field not
                 - equal to 44 octets,
                 - EOM L2_PDU payload length field value less
                 - than 4 octets or greater than 44 octets."
              ::= { sipL2Entry 5 }

          sipL2SequenceNumberErrors  OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The number of received SIP Level 2 PDUs that had
                 a sequence number within the L2PDU not equal to
                 the expected sequence number of the SMDS SS
                 receive process."
              ::= { sipL2Entry 6 }

          sipL2MidCurrentlyActiveErrors  OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The number of received SIP Level 2 PDUs that are
                 BOMs for which an active receive process is
                 already started."
              ::= { sipL2Entry 7 }

          sipL2BomOrSSMsMIDErrors  OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION





                 "The number of received SIP Level 2 PDUs that are
                 SSMs with a MID not equal to zero or are BOMs with
                 MIDs equal to zero."
              ::= { sipL2Entry 8 }

          sipL2EomsMIDErrors  OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The number of received SIP Level 2 PDUs that are
                 EOMs for which there is no active receive process
                 for the MID (i.e., the receipt of an EOM which
                 does not correspond to a BOM) OR the EOM has a MID
                 equal to zero."
              ::= { sipL2Entry 9 }


          -- The SIP PLCP Group

          sipPLCP OBJECT IDENTIFIER ::= { sip 3 }


          -- The DS1 PLCP Group

          sipDS1PLCPTable  OBJECT-TYPE
              SYNTAX      SEQUENCE OF SipDS1PLCPEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This table contains SIP DS1 PLCP parameters and
                 state variables, one entry per SIP port."
              ::= { sipPLCP 1 }

          sipDS1PLCPEntry  OBJECT-TYPE
              SYNTAX      SipDS1PLCPEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This list contains SIP DS1 PLCP parameters and
                 state variables."
              INDEX   { sipDS1PLCPIndex }
              ::= { sipDS1PLCPTable 1 }

          SipDS1PLCPEntry  ::= SEQUENCE {
              sipDS1PLCPIndex       IfIndex,
              sipDS1PLCPSEFSs       Counter32,
              sipDS1PLCPAlarmState  INTEGER,





              sipDS1PLCPUASs        Counter32
              }

          sipDS1PLCPIndex  OBJECT-TYPE
              SYNTAX      IfIndex
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the
                 interface for which this entry contains management
                 information. "
              ::= { sipDS1PLCPEntry 1 }

          sipDS1PLCPSEFSs OBJECT-TYPE
              SYNTAX       Counter32
              MAX-ACCESS   read-only
              STATUS       current
              DESCRIPTION
                 "A DS1 Severely Errored Framing Second (SEFS) is a
                 count of one-second intervals containing one or
                 more SEF events.  A Severely Errored Framing (SEF)
                 event is declared when an error in the A1 octet
                 and an error in the A2 octet of a framing octet
                 pair (i.e., errors in both framing octets), or two
                 consecutive invalid and/or nonsequential Path
                 Overhead Identifier octets are detected."
              ::= { sipDS1PLCPEntry 2 }

          sipDS1PLCPAlarmState OBJECT-TYPE
              SYNTAX  INTEGER     {
                          noAlarm (1),
                          receivedFarEndAlarm (2),
                          incomingLOF (3)
                      }
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "This variable indicates if there is an alarm
                 present for the DS1 PLCP.  The value
                 receivedFarEndAlarm means that the DS1 PLCP has
                 received an incoming Yellow Signal, the value
                 incomingLOF means that the DS1 PLCP has declared a
                 loss of frame (LOF) failure condition, and the
                 value noAlarm means that there are no alarms
                 present.  See TR-TSV-000773 for a description of
                 alarm states."
              ::= { sipDS1PLCPEntry 3 }






          sipDS1PLCPUASs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The counter associated with the number of
                 Unavailable Seconds, as defined by TR-TSV-000773,
                 encountered by the PLCP."
              ::= { sipDS1PLCPEntry 4 }


          -- The DS3 PLCP Group

          sipDS3PLCPTable  OBJECT-TYPE
              SYNTAX      SEQUENCE OF SipDS3PLCPEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This table contains SIP DS3 PLCP parameters and
                 state variables, one entry per SIP port."
              ::= { sipPLCP 2 }

          sipDS3PLCPEntry  OBJECT-TYPE
              SYNTAX      SipDS3PLCPEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "This list contains SIP DS3 PLCP parameters and
                 state variables."
              INDEX   { sipDS3PLCPIndex }
              ::= { sipDS3PLCPTable 1 }

          SipDS3PLCPEntry  ::= SEQUENCE {
              sipDS3PLCPIndex       IfIndex,
              sipDS3PLCPSEFSs       Counter32,
              sipDS3PLCPAlarmState  INTEGER,
              sipDS3PLCPUASs        Counter32
              }

          sipDS3PLCPIndex  OBJECT-TYPE
              SYNTAX      IfIndex
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the
                 interface for which this entry contains management
                 information.  "
              ::= { sipDS3PLCPEntry 1 }





          sipDS3PLCPSEFSs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "A DS3 Severely Errored Framing Second (SEFS) is a
                 count of one-second intervals containing one or
                 more SEF events.  A Severely Errored Framing (SEF)
                 event is declared when an error in the A1 octet
                 and an error in the A2 octet of a framing octet
                 pair (i.e., errors in both framing octets), or two
                 consecutive invalid and/or nonsequential Path
                 Overhead Identifier octets are detected."
              ::= { sipDS3PLCPEntry 2 }

          sipDS3PLCPAlarmState OBJECT-TYPE
              SYNTAX  INTEGER     {
                          noAlarm (1),
                          receivedFarEndAlarm (2),
                          incomingLOF (3)
                      }
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "This variable indicates if there is an alarm
                 present for the DS3 PLCP.  The value
                 receivedFarEndAlarm means that the DS3 PLCP has
                 received an incoming Yellow Signal, the value
                 incomingLOF means that the DS3 PLCP has declared a
                 loss of frame (LOF) failure condition, and the
                 value noAlarm means that there are no alarms
                 present.  See TR-TSV-000773 for a description of
                 alarm states."
              ::= { sipDS3PLCPEntry 3 }

          sipDS3PLCPUASs OBJECT-TYPE
              SYNTAX      Counter32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The counter associated with the number of
                 Unavailable Seconds, as defined by TR-TSV-000773,
                 encountered by the PLCP."
              ::= { sipDS3PLCPEntry 4 }


          -- The SMDS Applications group
          -- Applications that have been identified for this group are:





          --          * IP-over-SMDS (details are specified in RFC 1209)

          smdsApplications OBJECT IDENTIFIER ::= { sip 4 }

          ipOverSMDS OBJECT IDENTIFIER ::= { smdsApplications 1 }

          -- Although the objects in this group are read-only, at the
          -- agent's discretion they may be made read-write so that the
          -- management station, when appropriately authorized, may
          -- change the addressing information related to the
          -- configuration of a logical IP subnetwork implemented on
          -- top of SMDS.

          -- This table is necessary to support RFC1209 (IP-over-SMDS)
          -- and gives information on the Group Addresses and ARP
          -- Addresses used in the Logical IP subnetwork.
          -- One SMDS address may be associated with multiple IP
          -- addresses.  One SNI may be associated with multiple LISs.

          ipOverSMDSTable OBJECT-TYPE
              SYNTAX      SEQUENCE OF IpOverSMDSEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "The table of addressing information relevant to
                 this entity's IP addresses."
              ::= { ipOverSMDS 1 }

          ipOverSMDSEntry OBJECT-TYPE
              SYNTAX      IpOverSMDSEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "The addressing information for one of this
                 entity's IP addresses."
              INDEX   { ipOverSMDSIndex, ipOverSMDSAddress }
              ::= { ipOverSMDSTable 1 }

          IpOverSMDSEntry ::=
              SEQUENCE {
                 ipOverSMDSIndex       IfIndex,
                 ipOverSMDSAddress     IpAddress,
                 ipOverSMDSHA          SMDSAddress,
                 ipOverSMDSLISGA       SMDSAddress,
                 ipOverSMDSARPReq      SMDSAddress
                 }

          ipOverSMDSIndex OBJECT-TYPE





              SYNTAX      IfIndex
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the
                 interface for which this entry contains management
                 information. "
              ::= { ipOverSMDSEntry 1 }

          ipOverSMDSAddress OBJECT-TYPE
               SYNTAX      IpAddress
               MAX-ACCESS  read-only
               STATUS      current
               DESCRIPTION
                 "The IP address to which this entry's addressing
                 information pertains."
              ::= { ipOverSMDSEntry 2 }

          ipOverSMDSHA OBJECT-TYPE
              SYNTAX      SMDSAddress
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The SMDS Individual address of the IP station."
              ::= { ipOverSMDSEntry 3 }

          ipOverSMDSLISGA OBJECT-TYPE
              SYNTAX      SMDSAddress
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The SMDS Group Address that has been configured
                 to identify the SMDS Subscriber-Network Interfaces
                 (SNIs) of all members of the Logical IP Subnetwork
                 (LIS) connected to the network supporting SMDS."
              ::= { ipOverSMDSEntry 4 }

          ipOverSMDSARPReq OBJECT-TYPE
              SYNTAX      SMDSAddress
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The SMDS address (individual or group) to which
                 ARP Requests are to be sent."
              ::= { ipOverSMDSEntry 5 }


          -- The SMDS Carrier Selection group





          -- This group is used as a place holder
          -- for carrier selection objects.

          smdsCarrierSelection OBJECT IDENTIFIER ::= { sip 5 }


          -- The SIP Error Log

          sipErrorLog OBJECT IDENTIFIER ::= { sip 6 }

          sipL3PDUErrorTable OBJECT-TYPE
              SYNTAX      SEQUENCE OF SipL3PDUErrorEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                 "A table that contains the latest occurrence of
                 the following syntactical SIP L3PDU errors:

                 - Destination Address Field Format Error,

                 The following pertains to the 60 least significant
                 bits of the 64 bit address field.  The 60 bits
                 contained in the address subfield can be used to
                 represent addresses up to 15 decimal digits.  Each
                 decimal digit shall be encoded into four bits
                 using Binary Coded Decimal (BCD), with the most
                 significant digit occurring left-most.  If not all
                 15 digits are required, then the remainder of this
                 field shall be padded on the right with bits set
                 to one.  An error is considered to have occurred:
                 a).  if the first four bits of the address
                 subfield are not BCD, OR b).  if the first four
                 bits of the address subfield are populated with
                 the country code value 0001, AND the 40 bits which
                 follow are not Binary Coded Decimal (BCD) encoded
                 values of the 10 digit addresses, OR the remaining
                 16 least significant bits are not populated with
                 1's, OR c).  if the address subfield is not
                 correct according to another numbering plan which
                 is dependent upon the carrier assigning the
                 numbers and offering SMDS.

                 - Source Address Field Format Error,

                 The description of this parameter is the same as
                 the description of the Destination Address Field
                 Format Error.






                 - Invalid BAsize Field Value,

                 An error is considered to have occurred when the
                 BAsize field of an SIP L3PDU contains a value less
                 that 32, greater than 9220 octets without the
                 CRC32 field present, greater than 9224 octets with
                 the CRC32 field present, or not equal to a
                 multiple of 4 octets,

                 - Invalid Header Extension Length Field Value,

                 An error is considered to have occurred when the
                 Header Extension Length field value is not equal
                 3.

                 - Invalid Header Extension - Element Length,

                 An error is considered to have occurred when the
                 Header Extension - Element Length is greater than
                 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
                 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.

                 - 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
              MAX-ACCESS  not-accessible





              STATUS      current
              DESCRIPTION
                 "An entry in the service disagreement table."
              INDEX   { sipL3PDUErrorIndex, sipL3PDUErrorType }
              ::= { sipL3PDUErrorTable 1 }

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

          sipL3PDUErrorIndex OBJECT-TYPE
              SYNTAX      IfIndex
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The value of this object identifies the
                 interface for which this entry contains management
                 information."
              ::= { 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)
              }
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The type of error."
              ::= { sipL3PDUErrorEntry 2 }

          sipL3PDUErrorSA OBJECT-TYPE
              SYNTAX      SMDSAddress
              MAX-ACCESS  read-only





              STATUS      current
              DESCRIPTION
                 "A rejected SMDS source address."
              ::= { sipL3PDUErrorEntry 3 }

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

          sipL3PDUErrorTimeStamp OBJECT-TYPE
              SYNTAX      TimeStamp
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                 "The timestamp for the service disagreement.  The
                 timestamp contains the value of sysUpTime at the
                 latest occurrence of this type of service
                 disagreement.  See textual description under
                 sipL3PDUErrorTable for boundary conditions."
              ::= { sipL3PDUErrorEntry 5 }


          -- The DXI Group

          sipDxiTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF SipDxiEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "The DXI table."
             ::= { sipMIBObjects 1 }

          sipDxiEntry   OBJECT-TYPE
             SYNTAX     SipDxiEntry
             MAX-ACCESS not-accessible
             STATUS     current
             DESCRIPTION
                   "An entry in the DXI table."
             INDEX { ifIndex }
             ::= { sipDxiTable 1 }

          SipDxiEntry ::=
             SEQUENCE {
                sipDxiCrc





                   INTEGER,
                sipDxiOutDiscards
                   Counter32,
                sipDxiInErrors
                   Counter32,
                sipDxiInAborts
                   Counter32,
                sipDxiInTestFrames
                   Counter32,
                sipDxiOutTestFrames
                   Counter32,
                sipDxiHbpNoAcks
                   Counter32
             }

          sipDxiCrc   OBJECT-TYPE
             SYNTAX  INTEGER {
                        crc16(1),
                        crc32(2)
                        }
             MAX-ACCESS read-only
             STATUS     current
             DESCRIPTION
                   "The value of this object indicates the type
                   of Frame Checksum used by DXI.  Current
                   choices include CCITT CRC16 or CRC32."
             ::= { sipDxiEntry 1 }

          sipDxiOutDiscards   OBJECT-TYPE
             SYNTAX     Counter32
             MAX-ACCESS read-only
             STATUS     current
             DESCRIPTION
              "The number of outbound frames discarded
              because of congestion."
             ::= { sipDxiEntry 2 }

          sipDxiInErrors   OBJECT-TYPE
             SYNTAX     Counter32
             MAX-ACCESS read-only
             STATUS     current
             DESCRIPTION
                   "The number of inbound frames discarded
                   because of errors such as frame checksum
                   (CRC) violations,
                   non-integral number of octets, address
                   and control field violations, and frame
                   size errors."





             ::= { sipDxiEntry 3 }

          sipDxiInAborts  OBJECT-TYPE
             SYNTAX     Counter32
             MAX-ACCESS read-only
             STATUS     current
             DESCRIPTION
                   "The number of inbound frames discarded
                   because of an abort bit sequence (1111111)
                   received before closing flag."
             ::= { sipDxiEntry 4 }

          sipDxiInTestFrames    OBJECT-TYPE
             SYNTAX     Counter32
             MAX-ACCESS read-only
             STATUS     current
             DESCRIPTION
                   "The number of unerrored,
                   inbound Test frames received
                   (generally as part of Heart
                   Beat Poll procedure)."
             ::= { sipDxiEntry 5 }

          sipDxiOutTestFrames   OBJECT-TYPE
             SYNTAX     Counter32
             MAX-ACCESS read-only
             STATUS     current
             DESCRIPTION
                   "The number of unerrored,
                   outbound Test frames sent
                  (generally as part of Heart
                  Beat Poll procedure)."
             ::= { sipDxiEntry 6 }

          sipDxiHbpNoAcks  OBJECT-TYPE
             SYNTAX     Counter32
             MAX-ACCESS read-only
             STATUS     current
             DESCRIPTION
                   "The number of Heart Beat
                   Poll (HBP) No Ack timeouts."
             ::= { sipDxiEntry 7 }


          -- conformance information

          smdsConformance OBJECT IDENTIFIER ::= { sipMIB 2 }






          smdsGroups      OBJECT IDENTIFIER ::= { smdsConformance 1 }
          smdsCompliances OBJECT IDENTIFIER ::= { smdsConformance 2 }


          -- compliance statements

          smdsCompliance MODULE-COMPLIANCE
              STATUS  current
              DESCRIPTION
                 "The compliance statement for SMDS interfaces."

              MODULE  -- this module
                  MANDATORY-GROUPS { sipLevel3Stuff }

                  GROUP       sipLevel2Stuff
                  DESCRIPTION
                      "This group is mandatory only for those
                      interfaces (SNIs) which run SIP Level 2."

                  GROUP       sipDS1PLCPStuff
                  DESCRIPTION
                      "This group is mandatory only for those
                      interfaces (SNIs) which run the DS1 PLCP."

                  GROUP       sipDS3PLCPStuff
                  DESCRIPTION
                      "This group is mandatory only for those
                      interfaces (SNIs) which run the DS3 PLCP."

                  GROUP       sipIPApplicationsStuff
                  DESCRIPTION
                      "This group is mandatory only for interfaces
                       operating IP over SMDS in accordance with
                       RFC1209."

                  GROUP       sipDxiStuff
                  DESCRIPTION
                      "This group is mandatory only for those interfaces
                      (DXI-SNI)
                      which run the DXI protocol."
              ::= { smdsCompliances 1 }

          -- units of conformance

          sipLevel3Stuff    OBJECT-GROUP
              OBJECTS { sipL3Index,
                        sipL3VersionSupport, sipL3PDUErrorIndex,
                        sipL3PDUErrorType,





                        sipL3PDUErrorSA, sipL3PDUErrorDA,
                        sipL3PDUErrorTimeStamp }
              STATUS  current
              DESCRIPTION
                      "A collection of objects providing information
                      applicable to all SMDS interfaces."
              ::= { smdsGroups 1 }

          sipLevel2Stuff    OBJECT-GROUP
              OBJECTS { sipL2Index, sipL2HcsOrCRCErrors,
                        sipL2PayloadLengthErrors,
                        sipL2SequenceNumberErrors,
                        sipL2MidCurrentlyActiveErrors,
                        sipL2BomOrSSMsMIDErrors,
                        sipL2EomsMIDErrors }
              STATUS  current
              DESCRIPTION
                      "A collection of objects providing information
                      specific to interfaces using the SIP Level 2."
              ::= { smdsGroups 2 }

          sipDS1PLCPStuff    OBJECT-GROUP
              OBJECTS { sipDS1PLCPIndex, sipDS1PLCPSEFSs,
                        sipDS1PLCPAlarmState, sipDS1PLCPUASs }
              STATUS  current
              DESCRIPTION
                      "A collection of objects providing information
                      specific to interfaces using the DS1 PLCP."
              ::= { smdsGroups 3 }

          sipDS3PLCPStuff    OBJECT-GROUP
              OBJECTS { sipDS3PLCPIndex, sipDS3PLCPSEFSs,
                        sipDS3PLCPAlarmState, sipDS3PLCPUASs }
              STATUS  current
              DESCRIPTION
                      "A collection of objects providing information
                      specific to interfaces using the DS3 PLCP."
              ::= { smdsGroups 4 }


          sipIPApplicationsStuff    OBJECT-GROUP
              OBJECTS { ipOverSMDSIndex, ipOverSMDSAddress,
                        ipOverSMDSHA, ipOverSMDSLISGA, ipOverSMDSARPReq }
              STATUS  current
              DESCRIPTION
                      "A collection of objects providing information
                      for running IP over SMDS."
              ::= { smdsGroups 5 }





          sipDxiStuff     OBJECT-GROUP
              OBJECTS  { sipDxiCrc, sipDxiOutDiscards,
                         sipDxiInErrors, sipDxiInAborts,
                         sipDxiInTestFrames, sipDxiOutTestFrames,
                         sipDxiHbpNoAcks }
              STATUS   current
              DESCRIPTION
                      "A collection of objects providing information
                      specific to interfaces using the DXI protocol."
              ::= { smdsGroups 6 }

          END


