R0106-HP MSR Router Series Layer 2 - WAN Command Reference(V7)

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If dynamic SPID negotiation is used, the service provider switch sends available SPIDs to the device. The
device selects the SPID that best suits its service configuration. For example, if you specify the data service,
the device preferentially selects the SPID that includes only the data service. If you specify the audio and
data services, the device preferentially selects the SPID that includes both services.
For the device to accept a SPID that includes any service types, use the undo form of the command.
You cannot execute this command when a SPID negotiation is present on the interface.
Examples
# Specify the audio service on BRI 2/4/0.
<Sysname> system-view
[Sysname] interface bri 2/4/0
[Sysname-Bri2/4/0] isdn service audio
isdn spid timer
Use isdn spid timer to set the TSPID timer on an NI-enabled BRI interface.
Use undo isdn spid timer to restore the default.
Syntax
isdn spid timer seconds
undo isdn spid timer
Default
The TSPID timer is 30 seconds.
Views
ISDN BRI interface view
Predefined user roles
network-admin
Parameters
seconds: Sets the TSPID timer in the range of 1 to 255 seconds.
Usage guidelines
This command is available only on NI-enabled BRI interfaces. You cannot configure this command when
a SPID negotiation is present on the interface.
An NI-enabled BRI interface sends SPID information in Q.931 INFORMATION messages during SPID
negotiation and Layer 3 initialization.
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.
Examples
# Set the TSPID timer to 50 seconds on BRI 2/4/0.
<Sysname> system-view