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export ospf routes into isis

Posted: 20 Nov 2015 19:18
by Rickdatech
policy-options
begin
policy-statement "redist"
entry 20
from
protocol ospf
exit
action accept
exit
exit
exit
commit
exit

*A:Router_2# configure router isis export "redist"



this seems to only get the routes listed int the route-table as OSPF remote routes. If it is directly connected, they are not exporting, even if they are showing up in the Router LSA for that router. It works the other way from isis into ospf both direct and isis remote routes will populate into the router LSA.

Is this normal 7750 behavior or an anomaly of the virtual 7750?

Rick

Re: export ospf routes into isis

Posted: 21 Nov 2015 05:38
by didigno
If you want to redistribute the direct prefixes you need to announce them in a policy routing

policy-options
begin
policy-statement "DIRECT"
entry 10
from protocol direct
exit
action accept
exit
exit
exit
commit
exit

Re: export ospf routes into isis

Posted: 23 Nov 2015 18:02
by thecandymancan
Don't forget to use 'asbr' when exporting to OSPF

Re: export ospf routes into isis

Posted: 23 Nov 2015 18:02
by thecandymancan
Don't forget to use 'asbr' when importing to OSPF

Re: export ospf routes into isis

Posted: 24 Nov 2015 06:43
by Rickdatech
Thank you everyone. I did have the export working, I was just asking if this was a normal difference for the 7750. I don't have access to a non production service router to try it on. Just the VSR running in GNS3.

So far I've been able to provision the router with static routes, ospf, and isis in both ipv4 and ipv6 with many of the options like redistribution, summarization, bfd, and overload. Wire shark has been helpful to understand how the various protocols communicate. It's been a great deal of help in preparing for the NRS2 IGP test.

Re: export ospf routes into isis

Posted: 25 Nov 2015 07:27
by didigno
I would suggest you to review some concepts in this book http://www.snu.training/books.html MUCH MUCH BETTER than the official GUIDE