This chapter describes the Cisco NX-OS Open Shortest Path First (OSPF) commands that begin with F.
To enable the Open Shortest Path First Protocol (OSPF), use the feature ospf command. To disable OSPF, use the no form of this command.
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You must enable the OSPF feature before you can configure OSPF.
This example shows how to enable the OSPF feature:
This example shows how to disable the OSPF feature:
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To flush routes on a restart for the Open Shortest Path First (OSPF) protocol, use the flush-routes command. To disable this feature, use the no form of this command.
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This command causes OSPF to unregister from the unicast RIB when OSPF shuts down. The unicast RIB removes all the routes associated with this OSPF instance. If you do not configure the flush-routes command, OSPF does not unregister and the OSPF routes will be stale. The OSPF routes are eventually removed from the unicast RIB after a timeout period.
This example shows how to flush routes for an OSPF restart:
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