graceful-restart t2

Use graceful-restart t2 to set the T2 timer.

Use undo graceful-restart t2 to restore the default.

Syntax

graceful-restart t2 seconds

undo graceful-restart t2

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.

To ensure successful GR, follow these restrictions and guidelines when you configure the GR timers:

• The product of the T1 timer and the number of times that the T1 timer can expire must be smaller than the T2 timer.

• The T2 timer must be smaller than the T3 timer.

Examples

# Set the T2 timer of IS-IS process 1 to 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