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Default
The T2 timer is 60 seconds.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
seconds: Specifies the T2 timer in the range of 30 to 65535 seconds.
Usage guidelines
The T2 timer specifies the LSDB synchronization interval. Each LSDB has a T2 timer. The Level-1-2 router
has two T2 timers: a Level-1 timer and a Level-2 timer. If the LSDBs have not achieved synchronization
before the two timers expire, the GR process fails.
Examples
# Configure the T2 timer of IS-IS process 1 as 50 seconds.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] graceful-restart t2 50
Related commands
• graceful-restart
• graceful-restart t1
• graceful-restart t3
graceful-restart t3
Use graceful-restart t3 to configure the T3 timer.
Use undo graceful-restart t3 to restore the default.
Syntax
graceful-restart t3 seconds
undo graceful-restart t3
Default
The T3 timer is 300 seconds.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
seconds: Specifies the T3 timer in the range of 300 to 65535 seconds.
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