ISDN_PROTOCOL_PARMS_LAPD parameters

The ISDN_PROTOCOL_PARMS_LAPD structure contains parameters that configure the ISDN protocol stack for LAPD. Either this structure or ISDN_PROTOCOL_PARMS_Q931CC is passed to isdnStartProtocol, depending upon how the ISDN protocol stack is configured.

For more information, refer to Initializing ISDN protocol stack instances. For a definition of the data structure, refer to ISDN_PROTOCOL_PARMS_LAPD structure.

Type

Parameter

Description

Default value

Range of values

DWORD

size

Size of the structure.

None.

 

WORD

rate

Data rate.

ISDN_RATE_64K

ISDN_RATE_64K,

ISDN_RATE_56K

WORD

max_FEC_errors

Maximum number of framing errors allowed during the T198 interval.

20

0 or more ms

timer_val_t

t101

Milliseconds of bad framing before disabling sending of D channel packets.

750

0 or more ms

timer_val_t

t102

Milliseconds of good framing before enabling sending D channel packets.

50

0 or more ms

timer_val_t

t198

Observation period for frame error count.

5

0 or more seconds

WORD

tei_time_assignment

TEI time assignment.

0

(reserved)

WORD

tei_time_removal

TEI time removal.

0

(reserved)

BYTE

bpad1[2]

Padding for 8 byte alignment.

0

0

WORD

nfas_group

NFAS group number if duplicate NAI values.

0

ON or OFF