OSPF area notation

OSPF is able to use either a decimal number or a dotted notation to indicate the area. For example both of the following commands have identical results:

R2(config-router)#network area 5 R2(config-router)#network area

The router interprets both of these in binary anyway, so they are the same.

Notice the following:

<0-4294967295> OSPF area ID as a decimal value A.B.C.D OSPF area ID in IP address format

The range of values in decimal is the same as the number of values in a 32 bit dotted decimal notation.



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