Re: nssa no-redistribute command

1. What does the command on R1 "area 26 nssa no-summary" do ? It prevents
inter-area and intra-area routes from entering area 26.
2. On R1 you redistributed Loopback. Is redistribution into NSSA allowed ?
By definition of NSSA, external routes are redistributed as type 7.

What rule wins then ? The rule of blocking external routes or the rule of
allowing external routes as type 7 into NSSA ?

I can only presume, it was decided that if a router is at the same time an
ASBR and ABR connecting to an NSSA area, the rule of allowing Type-7 wins.

This is where "no-redistribution" command helps: it prevents locally
redistributed routes from entering an nssa area.

------------------------------

PS: I reserve the right to be wrong.

Blogs and organic groups at http://www.ccie.net
Received on Mon May 16 2011 - 13:17:16 ART