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Configuring Graceful Restart for ES-IS

Graceful restart allows a router to restart with minimal impact to the network, and is enabled globally for all routing protocols at the [edit routing-options] hierarchy level. When graceful restart for ES-IS is enabled, the routes to end systems or intermediate systems are not removed from the forwarding table. The adjacencies are reestablished after restart is complete.

You can configure graceful restart parameters specifically for ES-IS. To do this, include the graceful-restart statement:




graceful-restart {
disable;
restart-duration seconds;
}

For a list of hierarchy levels at which you can configure this statement, see the statement summary section for this statement.

To disable graceful restart for ES-IS, specify the disable statement. To configure a time limit for restart completion, specify the restart-duration statement. You can specify a number between 1 and 3600. The default value is 180 seconds.

Note: Graceful restart is enabled automatically for ES-IS if graceful restart is configured globally at the [edit routing-options] hierarchy level.

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