OSPF Broadcast Network Type over Frame-Relay

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Hello Sathish

Yes there is! You can use the show ip ospf command. One of the elements in the output shows any of the following:

  • It is an internal router
  • It is an area border router
  • It is an autonomous system boundary router

Here is the output in context:

Router# show ip ospf 1
 Routing Process "ospf 1" with ID 10.0.0.1
 Supports only single TOS(TOS0) routes
 Supports opaque LSA
 Supports Link-local Signaling (LLS)
 It is an autonomous system boundary router
 Redistributing External Routes from,
    static, includes subnets in redistribution
    Maximum limit of redistributed prefixes 2000
    Threshold for warning message 75%
Initial SPF schedule delay 5000 msecs
 Minimum hold time between two consecutive SPFs 10000 msecs
Maximum wait time between two consecutive SPFs 10000 msecs

You can find out more information from this command at this Cisco command reference:

Now having said that, you can also identify an ABR by simply checking out the OSPF configuration to see if it has interfaces in more than one area. For an ASBR, you just have to check if it has at least one interface that is not participating in OSPF.

I hope this has been helpful!

Laz

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