Configuring graceful restart

OSPFv3 routing can be gracefully restarted on switches without losing packets that are in transit. There is no effect on the saved switch configuration.

Prerequisites

NOTE:

Graceful restart is only applicable to the 6300-VSF and 6400, not for 832x switches.

You must be in the OSPFv3 router configuration context, as indicated by the switch(config-ospfv3-1)# prompt.

Procedure

Configure graceful restart of using the following command. For command details, see graceful-restart.

graceful-restart [restart-interval <seconds> | helper]

For example, the following command specifies 50 seconds as the maximum interval another router will wait for this router to gracefully restart.

switch(config-ospfv3-1)# graceful-restart restart-interval 50