Dell PowerEdge M520 Dell PowerConnect M6220/M6348/M8024/M8024-k CLI Referen - Page 1110
nsf restart-interval, Syntax, Default Configuration, Command Mode, User Guidelines, Example
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until the graceful restart completes. By exiting the graceful restart on a topology change, a router tries to eliminate the loops or black holes as quickly as possible by routing around the restarting router. A helpful neighbor considers a link down with the restarting router to be a topology change, regardless of the strict LSA checking configuration. nsf restart-interval Use the nsf restart-interval command to configure the length of the grace period on the restarting router. Use the "no" form of this command to revert the grace period to its default. Syntax nsf [ietf ] restart-interval seconds no nsf [ietf] restart-interval • ietf - This keyword is used to distinguish the IETF standard implementation of graceful restart from other implementations. Since the IETF implementation is the only one supported, this keyword is optional. • seconds - The number of seconds that the restarting router asks its neighbors to wait before exiting helper mode. The restarting router includes the restart interval in its grace LSAs (range 1-1800 seconds). Default Configuration The default restart interval is 120 seconds. Command Mode Router OSPF User Guidelines The grace period must be set long enough to allow the restarting router to reestablish all of its adjacencies and complete a full database exchange with each of those neighbors. Example console(config-router)#nsf restart-interval 180 1110 OSPF Commands
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