Two OSPF NSSA ABR injecting default route

[robert.kreinz]

Hi,

I have following design question:

If i have two NSSA ABR's and both are injecting a default route to the NSSA area, which route will win? Is the election of the default route inside the NSSA are based on costs too?

Thanks,

Robert

[mheusinger]

Hello,

every route - including default - will be installed based on

1) internal before external

2) cost

So depending on NSSA type 1 or 2 a router will pick the closest "exit" ABR or perform load sharing in case of equal cost.

Hope this helps! Please rate all posts.

Regards, Martin

[robert.kreinz]

Hi Martin,

Thanks for you reply. I had a discussion with one of my colleagues who mentioned that a router inside NSSA perform allways load sharing, even if the costs of the default routes are different and i wasn't so sure anymore who is right :-)

Best regards,

Robert

[vinodbharwani]

I beliave , which ever has shorted ( Optimal path) to reach NSSA ASBR will win the game