How long is the default GR period of the OSPF routing protocol used by S series switches

For S series switches supporting OSPF, the default graceful restart (GR) period of the OSPF routing protocol is 120 seconds. If an OSPF neighbor relationship does not enter the Full state within 120 seconds, the GR fails. For example, when there are a large number of OSPF link-state advertisements (LSAs), LSA synchronization may not be complete within the default GR period, causing the GR to fail. In this case, run the graceful-restart period period command in the OSPF view to change the GR period on the Restarter.

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