-- #ident "%Z%%M% %I% %E% SMI"

RFC1381-MIB DEFINITIONS ::= BEGIN

IMPORTS

Counter

FROM RFC1155-SMI

transmission

FROM RFC1213-MIB

OBJECT-TYPE

FROM RFC-1212;

-- LAPB MIB

-- see Olivier Reisacher

transmission OBJECT IDENTIFIER ::= { mib-2 10 }

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))

ACCESS read-write

STATUS mandatory

DESCRIPTION

"The value of the parameter Group address.

A zero length string indicates no Group

address value has been assigned."

REFERENCE "ISO 8885 Table 3, Name: Group address"

DEFVAL { ''h }

::= { lapbXidEntry 5 }

lapbXidPortNumber OBJECT-TYPE

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

ACCESS read-write

STATUS mandatory

DESCRIPTION

"The port number assigned for this link. A

zero length string indicates no local port

number identifier has been assigned."

REFERENCE "ISO 8885 Table 3, Name: Port number"

DEFVAL { ''h }

::= { lapbXidEntry 6 }

lapbXidUserDataSubfield OBJECT-TYPE

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

ACCESS read-write

STATUS mandatory

DESCRIPTION

"A user data subfield, if any, to be

transmitted in an XID frame. A zero length

frame indicates no user data subfield has

been assigned. The octet string should

include both the User data identifier and

User data field as shown in Figures 1 and

4."

REFERENCE "ISO 8885 section 4.3"

DEFVAL { ''h }

::= { lapbXidEntry 7 }

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

-- LAPB protocol versions

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

lapbProtocolVersion OBJECT IDENTIFIER

::= { lapb 5 }

lapbProtocolIso7776v1986 OBJECT IDENTIFIER

::= { lapbProtocolVersion 1 }

lapbProtocolCcittV1980 OBJECT IDENTIFIER

::= { lapbProtocolVersion 2 }

lapbProtocolCcittV1984 OBJECT IDENTIFIER

::= { lapbProtocolVersion 3 }

-- The following describes some of the MIB-II interface

-- objects and their relationship with the objects in this

-- MIB extension.

-- ifDescr: describes the interface. It should include

-- identification information for the physical line and a

-- description of the network. For connections to PDNs,

-- it should name the PDN.

-- ifMtu: the maximum number of octets an upper layer can

-- pass to this interface as a single frame.

-- ifSpeed:

-- ifAdminStatus:

-- ifOperStatus:

-- ifLastChange: the last time the state of the interface

-- changed. A reset is considered an instantaneous change to

-- the ndm state and back to abm or abme. This will be the

-- last time that lapbFlowChangeReason and lapbFlowChanges

-- changed.

-- ifInOctets: contains the number of octets

-- received from the peer LAPB including FCS.

-- ifInUcastPkts: contains the number of I-frames delivered

-- by this interface to a higher layer interface.

-- ifInDiscards: contains the number of received

-- frames discarded because of internal conditions

-- (such as lack of buffering).

-- ifInErrors: contains the number of Invalid frames received.

-- This does not have any relationship with the number REJ,

-- or RNR frames sent or received.

-- ifInUnknownProtos: contains the number of frames

-- that were correct but were dropped because they

-- were inappropriate for the current state. This

-- includes an invalid Poll bit, an unknown address,

-- or other condition such as an RNR when connection

-- not established. This also includes the number of

-- DISC or other frames that were ignored because the

-- link was not established and this interface was not

-- configured to perform link setup on that type frame.

-- ifOutOctets: number of octets sent to peer including

-- FCS octets.

-- ifOutUcastPkts: number of I-frames received from

-- a higher layer for transmission to peer.

-- ifOutDiscards: number of frames to be sent that were

-- dropped due to internal conditions such as buffering etc.

-- ifOutErrors: number of transmissions that failed

-- due to errors or were considered invalid by the receiver.

-- This does not have any relationship with the number REJ,

-- or RNR frames sent or received.

-- ifOutQLen: number of frames waiting to be transmitted.

-- This MIB does not provide any support for:

-- Multilink procedure (MLP) in ISO 7776 section 6

-- LLC Pbit timer

-- LLC REJ timer

-- LLC Busy State Timer 7.8.1.4

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

END