Finished OSPF Vol1 tonight. I should know pretty much everything about OSPF by now. Here are some advice that I think is good when handling OSPF.

show ip ospf data self-originate – Will show what LSAs the local router is generating

show ip ospf data summary adv-router – Will show the Type3 inter-area summary as advertised by the router (Router-ID)

show ip ospf border-routers – Shows the cost of reaching ABR and ASBR, a nice shortcut for finding the forward metric when you are looking at external routes. You can find this out yourself by checking costs of the links to reach the advertising router but this is a nice shortcut.

show ip ospf data | be Type-7 – Will start the OSPF database output for the NSSA external prefixes, change Type to whatever you want to look at.

These are some of my favourites, what commands do you use yourselves? Post in comments.

OSPF Vol1 finished
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4 thoughts on “OSPF Vol1 finished

  • November 7, 2011 at 10:44 am

    One ql “hidden” command (unfortunately its now avaliable in all version of IOS)

    show ip ospf route

    • November 7, 2011 at 8:23 pm

      Nice! I know I’ve used it before but forgot about it. That is very nice indeed.


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