From: Wright, Jeremy (JA_WRIGHT@admworld.com)
Date: Thu Oct 24 2002 - 11:54:21 GMT-3
yes i believe you are correct:
stub= injected default route (no 5's)
stub no-summary= injected default route (no 3,4,5's but i think allowed 1
type 3 for default route)
nssa= no default route (no 5's but change externals that were redistributed
by asbr to type 7's that will change to 5's by abr to push to other area
that are eligible, use default-information-originate if route is visible in
route table, use default-information-originate always if not in routing
table)
nssa no-summary= (no 3,4,5, same type 7 translation deal as nssa, but
default route injected i believe as a type 3, i will have to check)
please correct me if im wrong..thanks!
-----Original Message-----
From: Peter van Oene [mailto:pvo@usermail.com]
Sent: Thursday, October 24, 2002 9:12 AM
To: Jaroslaw Zak; ccielab@groupstudy.com
Subject: Re: nssa no-summary question
Sounds ok, but which LSA is used is the more interesting question.
At 04:09 PM 10/24/2002 +0200, Jaroslaw Zak wrote:
>As far as I remember when you define area as "stub" and "stub no-summary"
>in both cases you get 0.0.0.0 injected in.
>While when you create "nssa" and "nssa no-summary", only in last case you
>get your default in. Therefore you would need
>"default-information-originate" option for "nssa" type area, if you wish
>to have 0.0.0.0 route propagated within.
>
>I wonder if I remember it right... :)
>
>Regards
>Jarek
>
>
>
>
>>From: Peter van Oene <pvo@usermail.com>
>>Reply-To: Peter van Oene <pvo@usermail.com>
>>To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
>>Subject: Re: nssa no-summary question
>>Date: Thu, 24 Oct 2002 09:02:52 -0400
>>
>>At 05:26 PM 10/23/2002 -0500, Wright, Jeremy wrote:
>>>i have area 100 setup as a "nssa no-summary" between r1 and r2. on the
other
>>>side of r1 is area 0. r1 dumps a default route down to r2 because of the
>>>no-summary argument. would there be any reason to use
>>>default-information-originate in this scenario? thanks
>>
>>Might be some need to control which of type 3 or 7 LSA's are used for the
>>summary route. NSSA no-summary might send a 7 with def originate sending
>>a 3, but I'm rusty here and would need to check. 3's are better than 7's
>>and thus you might be sending a default that is not preferred when
>>actually wanted it to be. Juniper lets you control this and I expect
>>Cisco might as well, but I haven't played with it recently.
>
>
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