Verifying Newer OSPFv2 Configuration

OSPF operates the same way whether you use the new or old style configuration. The OSPF area design works the same, neighbor relationships form the same way, routers negotiate to become the DR and BDR the same way, and so on. However, you can see a few small differences in command output when using the newer OSPFv2 configuration if you look closely.

The show ip protocols command relists most of the routing protocol configuration, just in slightly different format, as shown in Example B-14. With the newer style configuration, the output lists the phrase “Interfaces Configured Explicitly,” with the list of interfaces configured with the new ip ospf process-id area area-id commands, as highlighted in the example. ...

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