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

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To ensure successful call setup when ISDN NI is used, you must enable permanent Q.921 link
connectivity.
Examples
# Enable permanent Q.921 link connectivity on BRI 2/4/0.
<Sysname> system-view
[Sysname] interface bri 2/4/0
[Sysname-Bri2/4/0] isdn q921-permanent
Related commands
• isdn protocol-mode
• isdn two-tei
isdn spid auto-trigger
Use isdn spid auto-trigger to initiate a SPID negotiation on an NI-enabled BRI interface.
Syntax
isdn spid auto-trigger
Default
The NI-enabled BRI interface initiates a SPID negotiation when it receives a call request.
Views
ISDN BRI interface view
Predefined user roles
network-admin
Usage guidelines
This command is available only on NI-enabled BRI interfaces.
When the BRI interface uses dynamic SPID negotiation, you can initiate a SPID negotiation for testing
purposes or after an automatic dynamic SPID negotiation fails. If NIT mode is enabled or static SPIDs are
configured, you cannot initiate a SPID negotiation on the interface.
You can configure this command only when no call or SPID negotiation is present on the BRI interface.
Examples
# Initiate a SPID negotiation on BRI 2/4/0.
<Sysname> system-view
[Sysname] interface bri 2/4/0
[Sysname-Bri2/4/0] isdn spid auto-trigger
isdn spid nit
Use isdn spid nit to enable Not Initial Terminal (NIT) mode on an NI-enabled BRI interface.
Use undo isdn spid nit to disable NIT mode on a BRI interface.
Syntax
isdn spid nit
undo isdn spid nit