Enabling Nit Mode For Ni-Type Switches Incapable Of Spid Negotiation; Configuring Q.931 Negotiation Parameters - HPE FlexNetwork MSR series Configuration Manual

The TSPID timer sets the maximum interval that ISDN waits for a response after it sends an
INFORMATION message. The timer starts when the device initiates a SPID negotiation or Layer 3
initialization.
The interface retransmits the INFORMATION message if it has not received a response from the
service provider switch before the TSPID timer expires. This process continues until the interface
receives a response or the maximum number of INFORMATION retransmissions is reached.
To configure the TSPID timer and the maximum number of INFORMATION retransmissions:
Step
1. Enter system view.
2. Enter
interface view.
3. Set the
timer.
4. Set the maximum
number
INFORMATION
retransmissions.
NOTE:
You cannot perform this task when a SPID negotiation is present on the interface.
Enabling NIT mode for NI-type switches incapable of SPID
negotiation
Typically, the NI-enabled BRI interface must pass SPID negotiation or initiation before it can place a
call.
You must enable Not Initial Terminal (NIT) mode on the BRI interface if the NI-type service provider
switch does not support SPID negotiation.
To enable NIT mode:
Step
1. Enter system view.
2. Enter
interface view.
3. Enable NIT mode.

Configuring Q.931 negotiation parameters

Step
1. Enter system view.
2. Enter ISDN BRI or PRI
interface view.
3. Set the length of the call
reference value.
Command
system-view
ISDN BRI
interface bri interface-number
TSPID
isdn spid timer seconds
of
isdn spid resend times
Command
system-view
ISDN BRI
interface bri interface-number
isdn spid nit
Command
system-view
interface
interface-number
isdn
call-reference-length
Remarks
N/A
N/A
The default timer value is 30 seconds.
The default is 1.
Remarks
N/A
N/A
By default, NIT mode is disabled. The
BRI interface performs dynamic SPID
negotiation.
interface-type
crlength
110
Remarks
N/A
N/A
By default, the call reference length
is 2 bytes for CE1/PRI and CT1/PRI