From: Jaroslaw Zak (jaroslawz@hotmail.com)
Date: Thu Nov 07 2002 - 11:01:23 GMT-3
Hedi,
What you said is to be expected. That option basically cuts LSA7 about
external networks, so if you use it on that particular topology you
mentioned - the effect is no redistribution at all. You might as well not to
redistribute at all.
But when ASBR is also ABR, it generates both LSA7 and LSA5 updates about
redistributed networks. LSA7s are then converted back to another LSA5s
(normal ABR function in nssa area) so we have duplicates. To cut the
duplicates, no-redistribution option is provided.
HTH
Jarek
>From: "Hedi Abdelkafi" <Hedi.Abdelk@simac.lu>
>Reply-To: "Hedi Abdelkafi" <Hedi.Abdelk@simac.lu>
>To: "GroupStudy (E-mail)" <ccielab@groupstudy.com>
>Subject: OSPF: NSSA Filtering
>Date: Thu, 7 Nov 2002 14:15:56 +0100
>
>Hi,
>
>In the following URL http://www.cisco.com/warp/customer/104/nssa.html,
>(section Filtering in NSSA) it's said that the option no-Redistribution can
>only be used on an NSSA ASBR that's also an ABR.
>I tested this command on the NSSA ASBR (the router on the right side on the
>picture) and it works ... fine (RIP routes are not propagated in the NSSA
>Area 1) !!!
>Are they any mistakes in the documentation ?
>Thanks a lot for your help.
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