RFC1381-MIB DEFINITIONS ::= BEGIN

IMPORTS

        Counter

                FROM RFC1155-SMI

        transmission

                FROM RFC1213-MIB

        OBJECT-TYPE

                FROM RFC-1212;

                --  LAPB MIB

lapb    OBJECT IDENTIFIER ::= { transmission 16 }

PositiveInteger ::= INTEGER (0..2147483647)

IfIndexType     ::= INTEGER (1..2147483647)

-- IfIndexType specifies an index object for a table

-- with entries that match entries in the MIB-II ifTable.

-- The value of the index for the table will match the

-- ifIndex entry for same interface in the ifTable.

-- The values of this object range from 1 to ifNumber

-- inclusive.

-- ###########################################################

--                      LAPB Admn Table

-- ###########################################################

-- Support of the lapbAdmnTable is mandatory for all

-- agents of systems that implement LAPB.

lapbAdmnTable   OBJECT-TYPE

        SYNTAX  SEQUENCE OF LapbAdmnEntry

        ACCESS  not-accessible

        STATUS  mandatory

        DESCRIPTION

                "This table contains objects that can be

                changed to manage a LAPB interface.

                Changing one of these parameters may take

                effect in the operating LAPB immediately or

                may wait until the interface is restarted

                depending on the details of the

                implementation.

                Most of the objects in this read-write table

                have corresponding read-only objects in the

                lapbOperTable that return the current

                operating value.

                The operating values may be different from

                these configured values if changed by XID

                negotiation or if a configured parameter was

                changed after the interface was started."

        ::= { lapb 1 }

lapbAdmnEntry   OBJECT-TYPE

        SYNTAX  LapbAdmnEntry

        ACCESS  not-accessible

        STATUS  mandatory

        DESCRIPTION

                "Configured parameter values for a specific

                LAPB."

        INDEX { lapbAdmnIndex }

        ::= { lapbAdmnTable 1 }

LapbAdmnEntry ::= SEQUENCE {

        lapbAdmnIndex

                IfIndexType,

        lapbAdmnStationType

                INTEGER,

        lapbAdmnControlField

                INTEGER,

        lapbAdmnTransmitN1FrameSize

                PositiveInteger,

        lapbAdmnReceiveN1FrameSize

                PositiveInteger,

        lapbAdmnTransmitKWindowSize

                INTEGER,

        lapbAdmnReceiveKWindowSize

                INTEGER,

        lapbAdmnN2RxmitCount

        INTEGER,

        lapbAdmnT1AckTimer

                PositiveInteger,

        lapbAdmnT2AckDelayTimer

                PositiveInteger,

        lapbAdmnT3DisconnectTimer

                PositiveInteger,

        lapbAdmnT4IdleTimer

                PositiveInteger,

        lapbAdmnActionInitiate

                INTEGER,

        lapbAdmnActionRecvDM

                INTEGER

        }

lapbAdmnIndex   OBJECT-TYPE

        SYNTAX  IfIndexType

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The ifIndex value for the LAPB interface."

        ::= { lapbAdmnEntry 1 }

lapbAdmnStationType     OBJECT-TYPE

        SYNTAX  INTEGER {

                dte (1),

                dce (2),

                dxe (3)

                }

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "Identifies the desired station type of this

                interface."

        REFERENCE "ISO 7776 section 3.1"

        DEFVAL { dte }

        ::= { lapbAdmnEntry 2 }

lapbAdmnControlField OBJECT-TYPE

        SYNTAX  INTEGER {

                modulo8 (1),

                modulo128 (2)

                }

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The desired size of the sequence numbers

                used to number frames."

        REFERENCE "ISO 8885 Table 3, Name: HDLC Option - 10"

        DEFVAL { modulo8 }

        ::= { lapbAdmnEntry 3 }

lapbAdmnTransmitN1FrameSize OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The default maximum N1 frame size desired

                in number of bits for a frame transmitted by

                this DTE.  This excludes flags and 0 bits

                inserted for transparency."

        REFERENCE "ISO 8885 Table 3,

                Name: Information Field length"

        DEFVAL { 36000 } -- 4500 * 8; 802.5 Frame size

        ::= { lapbAdmnEntry 4 }

lapbAdmnReceiveN1FrameSize OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The default maximum N1 frame size desired

                in number of bits for a frame the DCE/remote

                DTE transmits to this DTE.  This excludes

                flags and 0 bits inserted for transparency."

        DEFVAL { 36000  } -- 4500 * 8; 802.5 Frame size

        ::= { lapbAdmnEntry 5 }

lapbAdmnTransmitKWindowSize OBJECT-TYPE

        SYNTAX  INTEGER (1..127)

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The default transmit window size for this

                Interface.  This is the maximum number of

                unacknowledged sequenced PDUs that may be

                outstanding from this DTE at any one time."

        REFERENCE "ISO 8885 Table 3, Name: Window size"

        DEFVAL { 7 }

        ::= { lapbAdmnEntry 6 }

lapbAdmnReceiveKWindowSize OBJECT-TYPE

        SYNTAX  INTEGER (1..127)

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The default receive window size for this

                Interface.  This is the maximum number of

                unacknowledged sequenced PDUs that may be

                outstanding from the DCE/remote DTE at any

                one time."

        REFERENCE "ISO 8885 Table 3, Name: Window size"

        DEFVAL { 7 }

        ::= { lapbAdmnEntry 7 }

lapbAdmnN2RxmitCount    OBJECT-TYPE

        SYNTAX  INTEGER (0..65535)

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The default N2 retry counter for this

                interface.  This specifies the number of

                times a PDU will be resent after the T1

                timer expires without an acknowledgement for

                the PDU."

        REFERENCE "ISO 8885 Table 3,

                Name: Retransmission Attempts"

        DEFVAL { 20 }

        ::= { lapbAdmnEntry 8 }

lapbAdmnT1AckTimer      OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The default T1 timer for this interface.

                This specifies the maximum time in

                Milliseconds to wait for acknowledgment of a

                PDU."

        REFERENCE "ISO 8885 Table 3, Name:

                Acknowledgement timer"

        DEFVAL { 3000 }

        ::= { lapbAdmnEntry 9 }

lapbAdmnT2AckDelayTimer         OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The default T2 timer for this interface.

                This specifies the maximum time in

                Milliseconds to wait before sending an

                acknowledgment for a sequenced PDU.  A value

                of zero means there will be no delay in

                acknowledgement generation."

        REFERENCE "ISO 8885 Table 3,

                Name: Reply delay timer"

        DEFVAL { 0 }

        ::= { lapbAdmnEntry 10 }

lapbAdmnT3DisconnectTimer OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The T3 timer for this interface.  This

                specifies the time in Milliseconds to wait

                before considering the link disconnected.  A

                value of zero indicates the link will be

                considered disconnected upon completion of

                the frame exchange to disconnect the link."

        REFERENCE "ISO 7776 section 5.7.1.3"

        DEFVAL { 60000 }

        ::= { lapbAdmnEntry 11 }

lapbAdmnT4IdleTimer OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The T4 timer for this interface.  This

                specifies the maximum time in Milliseconds

                to allow without frames being exchanged on

                the data link.  A value of 2147483647

                indicates no idle timer is being kept."

        REFERENCE "ISO 7776 section 5.7.1.4"

        DEFVAL { 2147483647 }

        ::= { lapbAdmnEntry 12 }

lapbAdmnActionInitiate OBJECT-TYPE

        SYNTAX  INTEGER {

        sendSABM (1),

                sendDISC (2),

                sendDM (3),

                none (4),

                other (5)

                }

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "This identifies the action LAPB will take

                to initiate link set-up."

        DEFVAL { sendSABM }

        ::= { lapbAdmnEntry 13 }

lapbAdmnActionRecvDM OBJECT-TYPE

        SYNTAX  INTEGER {

                sendSABM (1),

                sendDISC (2),

                other (3)

                }

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "This identifies the action LAPB will take

                when it receives a DM response."

        DEFVAL { sendSABM }

        ::= { lapbAdmnEntry 14 }

-- ###########################################################

--                      LAPB operating parameters.

-- ###########################################################

-- Support of the lapbOperTable is mandatory for all

-- agents of systems that implement LAPB.

lapbOperTable   OBJECT-TYPE

        SYNTAX  SEQUENCE OF LapbOperEntry

        ACCESS  not-accessible

        STATUS  mandatory

        DESCRIPTION

                "This table contains configuration

                information about interface parameters

                currently set in the interface.  Many of

                these objects have corresponding objects in

        the lapbAdmnTable."

        ::= { lapb 2 }

lapbOperEntry   OBJECT-TYPE

        SYNTAX  LapbOperEntry

        ACCESS  not-accessible

        STATUS  mandatory

        DESCRIPTION

                "Currently set parameter values for a

                specific LAPB."

        INDEX { lapbOperIndex }

        ::= { lapbOperTable 1 }

LapbOperEntry ::= SEQUENCE {

        lapbOperIndex

                IfIndexType,

        lapbOperStationType

                INTEGER,

        lapbOperControlField

                INTEGER,

        lapbOperTransmitN1FrameSize

                PositiveInteger,

        lapbOperReceiveN1FrameSize

                PositiveInteger,

        lapbOperTransmitKWindowSize

                INTEGER,

        lapbOperReceiveKWindowSize

                INTEGER,

        lapbOperN2RxmitCount

                INTEGER,

        lapbOperT1AckTimer

                PositiveInteger,

        lapbOperT2AckDelayTimer

                PositiveInteger,

        lapbOperT3DisconnectTimer

                PositiveInteger,

        lapbOperT4IdleTimer

                PositiveInteger,

        lapbOperPortId

                OBJECT IDENTIFIER,

        lapbOperProtocolVersionId

                OBJECT IDENTIFIER

        }

lapbOperIndex   OBJECT-TYPE

   SYNTAX       IfIndexType

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The ifIndex value for the LAPB interface."

        ::= { lapbOperEntry 1 }

lapbOperStationType     OBJECT-TYPE

        SYNTAX  INTEGER {

                dte (1),

                dce (2),

                dxe (3)

                }

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "Identifies the current operating station

                type of this interface.  A value of dxe (3)

                indicates XID negotiation has not yet taken

                place."

        REFERENCE "ISO 7776 section 3.1"

        ::= { lapbOperEntry 2 }

lapbOperControlField OBJECT-TYPE

        SYNTAX  INTEGER {

                modulo8 (1),

                modulo128 (2)

                }

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current operating size of the sequence

                numbers used to number frames."

        REFERENCE "ISO 7776 section 3.3"

        ::= { lapbOperEntry 3 }

lapbOperTransmitN1FrameSize OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current operating N1 frame size used

                for the maximum number of bits in a frame

                this DTE can transmit.  This excludes flags

                and 0 bits inserted for transparency."

        REFERENCE "ISO 7776 section 5.7.3"

        ::= { lapbOperEntry 4 }

lapbOperReceiveN1FrameSize OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-only

        STATUS  mandatory

        -- See lapbOperTransmitN1FrameSize above

        DESCRIPTION

                "The current operating N1 frame size used

                for the maximum number of bits in a frame

                the DCE/remote DTE can transmit.  This

                excludes flags and 0 bits inserted for

                transparency."

        ::= { lapbOperEntry 5 }

lapbOperTransmitKWindowSize OBJECT-TYPE

        SYNTAX  INTEGER (1..127)

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current PDU window size this Interface

                uses to transmit.  This is the maximum

                number of unacknowledged sequenced PDUs that

                may be outstanding from this DTE at any one

                time."

        REFERENCE "ISO 7776 section 5.7.4"

        ::= { lapbOperEntry 6 }

lapbOperReceiveKWindowSize OBJECT-TYPE

        SYNTAX  INTEGER (1..127)

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current receive PDU window size for

                this Interface.  This is the maximum number

                of unacknowledged sequenced PDUs that may be

                outstanding from the DCE/remote DTE at any

                one time."

        REFERENCE "ISO 7776 section 5.7.4"

        ::= { lapbOperEntry 7 }

lapbOperN2RxmitCount    OBJECT-TYPE

        SYNTAX  INTEGER (0..65535)

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current N2 retry counter used for this

                interface.  This specifies the number of

                times a PDU will be resent after the T1

                timer expires without an acknowledgement for

                the PDU."

        REFERENCE "ISO 7776 section 5.7.2"

        ::= { lapbOperEntry 8 }

lapbOperT1AckTimer      OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current T1 timer for this interface.

                This specifies the maximum time in

                Milliseconds to wait for acknowledgment of a

                PDU."

        REFERENCE "ISO 7776 section 5.7.1.1"

        ::= { lapbOperEntry 9 }

lapbOperT2AckDelayTimer         OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current T2 timer for this interface.

                This specifies the maximum time in

                Milliseconds to wait before sending an

                acknowledgment for a sequenced PDU.  A value

                of zero means there will be no delay in

                acknowledgement generation."

        REFERENCE "ISO 7776 section 5.7.1.2"

        ::= { lapbOperEntry 10 }

lapbOperT3DisconnectTimer OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current T3 timer for this interface.

                This specifies the time in Milliseconds to

                wait before considering the link

                disconnected.  A value of zero indicates the

                link will be considered disconnected upon

                completion of the frame exchange to

                disconnect the link."

        REFERENCE "ISO 7776 section 5.7.1.3"

        ::= { lapbOperEntry 11 }

lapbOperT4IdleTimer OBJECT-TYPE

        SYNTAX  PositiveInteger

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The current T4 timer for this interface.

                This specifies the maximum time in

                Milliseconds to allow without frames being

                exchanged on the data link.  A value of

                2147483647 indicates no idle timer is being

                kept."

        REFERENCE "ISO 7776 section 5.7.1.4"

        ::= { lapbOperEntry 12 }

lapbOperPortId OBJECT-TYPE

        SYNTAX  OBJECT IDENTIFIER

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "This object identifies an instance of the

                index object in the first group of objects

                in the MIB specific to the physical device

                or interface used to send and receive

                frames.  If an agent does not support any

                such objects, it should return nullSpec

                OBJECT IDENTIFIER {0 0}."

        ::= { lapbOperEntry 13 }

lapbOperProtocolVersionId       OBJECT-TYPE

        SYNTAX  OBJECT IDENTIFIER

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "This object identifies the version of the

                lapb protocol implemented by this

                interface."

        ::= { lapbOperEntry 14 }

-- ###########################################################

--                      LAPB    Flow Table

-- ###########################################################

-- Support of the lapbFlowTable is mandatory for all

-- agents of systems that implement LAPB.

lapbFlowTable OBJECT-TYPE

        SYNTAX  SEQUENCE OF LapbFlowEntry

        ACCESS  not-accessible

        STATUS  mandatory

        DESCRIPTION

                "This table defines the objects recorded by

                LAPB to provide information about the

                traffic flow through the interface."

        ::= { lapb 3 }

lapbFlowEntry OBJECT-TYPE

        SYNTAX  LapbFlowEntry

        ACCESS  not-accessible

        STATUS  mandatory

        DESCRIPTION

                "The information regarding the effects of

                flow controls in LAPB."

         INDEX { lapbFlowIfIndex }

        ::= { lapbFlowTable 1 }

LapbFlowEntry ::= SEQUENCE {

        lapbFlowIfIndex

                IfIndexType,

        lapbFlowStateChanges

                Counter,

        lapbFlowChangeReason

                INTEGER,

        lapbFlowCurrentMode

                INTEGER,

        lapbFlowBusyDefers

                Counter,

        lapbFlowRejOutPkts

                Counter,

        lapbFlowRejInPkts

                Counter,

        lapbFlowT1Timeouts

                Counter,

        lapbFlowFrmrSent

        OCTET STRING,

        lapbFlowFrmrReceived

                OCTET STRING,

        lapbFlowXidReceived

                OCTET STRING

        }

lapbFlowIfIndex OBJECT-TYPE

        SYNTAX  IfIndexType

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The ifIndex value for the LAPB Interface."

        ::= { lapbFlowEntry 1 }

lapbFlowStateChanges OBJECT-TYPE

        SYNTAX  Counter

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The number of LAPB State Changes, including

                resets."

        ::= { lapbFlowEntry 2 }

lapbFlowChangeReason OBJECT-TYPE

        SYNTAX  INTEGER {

                notStarted (1),    -- Initial state

                abmEntered (2),    -- SABM or UA

                abmeEntered (3),   -- SABME or UA

                abmReset (4),      -- SABM in ABM

                abmeReset (5),     -- SABME in ABME

                dmReceived (6),    -- DM Response

                dmSent (7),        -- DM sent

                discReceived (8),  -- DISC Response

                discSent (9),      -- DISC Sent

                frmrReceived (10), -- FRMR Received

                frmrSent (11),     -- FRMR Sent

                n2Timeout (12),    -- N2 Timer Expired

                other (13)

                  }

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The reason for the most recent incrementing

                of lapbFlowStateChanges.  A DM or DISC frame

                generated to initiate link set-up does not

                alter this object.  When the MIB-II object

                ifOperStatus does not have a value of

                testing, there exists a correlation between

                this object and ifOperStatus.  IfOperStatus

                will have a value of up when this object

                contains:  abmEntered, abmeEntered,

                abmReset, or abmeReset.  IfOperStatus will

                have a value of down when this object has a

                value of notStarted, or dmReceived through

                n2Timeout.  There is no correlation when

                this object has the value other."

        ::= { lapbFlowEntry 3 }

lapbFlowCurrentMode OBJECT-TYPE

        SYNTAX  INTEGER {

                disconnected (1),

                        -- initial state or DISC received

                linkSetup (2),

                        -- SABM sent

                frameReject (3),

                        -- Invalid frame received and

                        -- FRMR sent

                disconnectRequest (4),

                        -- DISC sent

                informationTransfer (5),

                        -- normal information transfer state

                        -- SABM(E) sent and UA received, or

                        -- SABM(E) received and UA sent

                rejFrameSent (6),

                        -- invalid NS received and REJ sent

                waitingAcknowledgement (7),

                        -- T1 expired and RR sent

                stationBusy (8),

                        -- RNR sent

                remoteStationBusy (9),

                        -- RNR received

                bothStationsBusy (10),

                        -- RNR received and RNR sent

                waitingAckStationBusy (11),

                        -- T1 expired, RNR sent

                waitingAckRemoteBusy (12),

                        -- T1 expired, RNR received

                waitingAckBothBusy (13),

                        -- T1 expired, RNR sent,

                        -- and RNR received

                rejFrameSentRemoteBusy (14),

                        -- REJ sent and RNR received

                xidFrameSent (15),

                        -- XID frame sent

                error (16),

                        -- An error state other than

                        -- a one defined above

                other (17)

                        --  A state not listed above

                  }

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The current condition of the conversation."

        ::= { lapbFlowEntry 4 }

lapbFlowBusyDefers OBJECT-TYPE

        SYNTAX  Counter

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The number of times this device was unable

                to transmit a frame due to a perceived

                remote busy condition.  Busy conditions can

                result from the receipt of an RNR from the

                remote device, the lack of valid sequence

                number space (window saturation), or other

                conditions."

        ::= { lapbFlowEntry 5 }

lapbFlowRejOutPkts OBJECT-TYPE

        SYNTAX  Counter

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The number of REJ or SREJ frames sent by

                this station."

        ::= { lapbFlowEntry 6 }

lapbFlowRejInPkts OBJECT-TYPE

        SYNTAX  Counter

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The number of REJ or SREJ frames received

                by this station."

        ::= { lapbFlowEntry 7 }

lapbFlowT1Timeouts OBJECT-TYPE

        SYNTAX  Counter

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The number of times a re-transmission was

                effected by the T1 Timer expiring."

        ::= { lapbFlowEntry 8 }

lapbFlowFrmrSent OBJECT-TYPE

        SYNTAX  OCTET STRING (SIZE (0..7))

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The Information Field of the FRMR most

                recently sent.  If no FRMR has been sent

                (the normal case) or the information isn't

                available, this will be an OCTET STRING of

                zero length."

        REFERENCE "ISO 7776 Section 4.3.9, tables 7 and 8"

        ::= { lapbFlowEntry 9 }

lapbFlowFrmrReceived OBJECT-TYPE

        SYNTAX  OCTET STRING (SIZE (0..7))

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The Information Field of the FRMR most

                recently received.  If no FRMR has been

                received (the normal case) or the

                information isn't available, this will be an

                OCTET STRING of zero length."

        REFERENCE "ISO 7776 Section 4.3.9, tables 7 and 8"

        ::= { lapbFlowEntry 10 }

lapbFlowXidReceived OBJECT-TYPE

        SYNTAX  OCTET STRING (SIZE (0..8206))

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The Information Field of the XID frame most

                recently received.  If no XID frame has been

                received, this will be an OCTET STRING of

                zero length."

        REFERENCE "ISO 8885"

        ::= { lapbFlowEntry 11 }

-- ###########################################################

--                      LAPB    XID Table

-- ###########################################################

-- Support for the lapbXidTable is mandatory for all agents

-- of systems that have a LAPB implementation using XID

-- negotiation.  Agents of systems without XID negotiation

-- support should not implement this table.

lapbXidTable    OBJECT-TYPE

        SYNTAX  SEQUENCE OF LapbXidEntry

        ACCESS  not-accessible

        STATUS  mandatory

        DESCRIPTION

                "This table defines values to use for XID

                negotiation that are not found in the

                lapbAdmnTable.  This table is optional for

                implementations that don't support XID and

                mandatory for implementations that do

                initiate XID negotiation."

        ::= { lapb 4 }

lapbXidEntry    OBJECT-TYPE

        SYNTAX  LapbXidEntry

   ACCESS       not-accessible

        STATUS  mandatory

        DESCRIPTION

                "XId negotiation parameter values for a

                specific LAPB."

        INDEX { lapbXidIndex }

        ::= { lapbXidTable 1 }

LapbXidEntry ::= SEQUENCE {

        lapbXidIndex

                IfIndexType,

        lapbXidAdRIdentifier

                OCTET STRING,

        lapbXidAdRAddress

                OCTET STRING,

        lapbXidParameterUniqueIdentifier

                OCTET STRING,

        lapbXidGroupAddress

                OCTET STRING,

        lapbXidPortNumber

                OCTET STRING,

        lapbXidUserDataSubfield

                OCTET STRING

        }

lapbXidIndex    OBJECT-TYPE

        SYNTAX  IfIndexType

        ACCESS  read-only

        STATUS  mandatory

        DESCRIPTION

                "The ifIndex value for the LAPB interface."

        ::= { lapbXidEntry 1 }

lapbXidAdRIdentifier OBJECT-TYPE

        SYNTAX  OCTET STRING (SIZE (0..255))

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The value of the Address Resolution

                Identifier.  A zero length string indicates

                no Identifier value has been assigned."

        REFERENCE "ISO 8885 Table 2, Name: Identifier"

        DEFVAL { ''h }

        ::= { lapbXidEntry 2 }

lapbXidAdRAddress OBJECT-TYPE

        SYNTAX  OCTET STRING (SIZE (0..255))

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The value of the Address Resolution

                Address.  A zero length string indicates no

                Address value has been assigned."

        REFERENCE "ISO 8885 Table 2, Name: Address"

        DEFVAL { ''h }

        ::= { lapbXidEntry 3 }

lapbXidParameterUniqueIdentifier OBJECT-TYPE

        SYNTAX  OCTET STRING (SIZE (0..255))

        ACCESS  read-write

        STATUS  mandatory

        DESCRIPTION

                "The value of the parameter unique

                Identifier.  A zero length string indicates

                no Unique identifier value has been

                assigned."

        REFERENCE "ISO 8885 Table 3, Name: Identifier"

        DEFVAL { ''h }

        ::= { lapbXidEntry 4 }

lapbXidGroupAddress OBJECT-TYPE

        SYNTAX  OCTET STRING (SIZE (0..255))