graceful-restart t3

Use graceful-restart t3 to set 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.

Usage guidelines

The T3 timer specifies the GR interval. The GR interval is set as the holdtime in hello PDUs. Within the interval, the neighbors maintain their adjacency with the GR restarter. If the GR process has not completed within the holdtime, the neighbors tear down the neighbor relationship and 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 T3 timer of IS-IS process 1 to 500 seconds.

<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] graceful-restart t3 500

Related commands

graceful-restart

graceful-restart t1

graceful-restart t2