Umesh_MS wrote:

> Hi i have a doubt ...
> If an area is NSSA need to generate the summary LSA ...
> it is not there in RFC 2328
> Umesh M.S

which RFC are you looking at, NSSA is in RFC 1587 also see

http://search.ietf.org/internet-drafts/draft-ietf-ospf-nssa-update-10.txt

regarding your question, it depends on the configuration. in normal case
you will generate summary as in case of any other area ( including Stub
) however you could configure on ABR to not advertise summary to NSSA or
Stub in this case the area should rely on a default summary originated
by ABR in order to guarantee Inter area routing. note that in both case
default LSA would be type 3 ( see NSSA update draft for the reason of
generating type 3 and not type 7 )

Sina

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