OSPF Configuration and Verification for Operation in a Single Area

To enable the OSPF process on a Cisco router, type the following command while in global configuration mode:

RouterA(config)# router ospf

The OSPF process ID is an integer value between 1 and 65,535 that is used to assign an identifier to the OSFP process operating on the router. A router uses the OSPF router ID number for internal purposes only and may run more than one OSPF process at a time. You must use the router ospf process-id command to get to the OSPF process in which you want the interfaces to be configured. If you have existing processes running, simply type this command first to take you to that process. This is comparable to entering interface configuration ...

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