From: Ovais Iqbal (ovais.iqball@yahoo.com)
Date: Mon Oct 27 2008 - 02:55:31 ARST
Dear Rob, you just have to make sure that a single area doesnt get splitted which can probably be the case when we have 2 abr for same area, in that case the traffic that should have remained within an area now must go through area 0 !!
2 or more eigrp processes defined 2 or more routing domains or AS domains, they are seperate because each represent a different set of routing devices and perhaps routing policies. If you have a single AS like that of a university and then a small university comes of with severals campus spread city wide, and you are running Eigrp in both these domains then ofcourse university networks need not to merge with the smaller uni, i mean whats the need of second university to learn the networks of parent university ? it would be connected via 1 or 2 WAN links and a default or static route would be enough right ? whereas the smaller university could run its own EIGRP domain without interrupting that of its parent university ( thats my scenario but this query can also be explained by experts in a much better way :-) )
I have heard we can run multiple BGP process on some high end routers like 7200 and beyond, but below them only one process can run at a single time
hope this helps
--- On Sun, 10/26/08, Rob Clav <robclav@gmail.com> wrote:
From: Rob Clav <robclav@gmail.com>
Subject: question about OSPF discontinous areas,two Eigrp procceses and two bgp proccesses at the same router.
To: "Cisco certification" <ccielab@groupstudy.com>
Date: Sunday, October 26, 2008, 10:22 PM
Hi experts,
I have some questions to share with you:
do we need to connect disconntinuous areas but area 0? For instance,
if we have area 78 splitted in two, then you need to connect them?
why?
If you have two eigrp proccess, I read is not posible to connect them
but redistributing? They have the same AD, and they are running the
same algoritm to calculate routes, so why?
And the last, there's any way to run two bgp proccesses at the same router?
Thank you,
Roberto Clavero
Blogs and organic groups at http://www.ccie.net
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