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 "1x:"

    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