From: Anshuk Kesarwani (anshuk.ccie@gmail.com)
Date: Wed Jan 30 2008 - 16:04:22 ARST
Hi All,
Problem occurs when a route is advertised from a Higher AD protocol to a
lower AD and again redistributed back to the same and the problem can cause
suboptimal routing and even Loops.
My way of doing redistribution is use tags when redistributing and denying
the routes with the tag on the other router when redistributing back.
Also if 100% reachability is there and it is not breaking any section of
routing paths in any other I think can forgo the suboptimal paths also (Guys
Please correct me is I am wrong)
Regards
Anshuk
---------- Forwarded message ----------
From: Navid Daghighi <smart4D@free.fr>
Date: Jan 29, 2008 2:30 AM
Subject: strategy for redistribution
To: Cisco certification <ccielab@groupstudy.com>
Hi,
I am trying to find out a good strategy for what is usually the last
question of the IGP section : REDISTRIBUTION.
Some people may be able to find immediatly and exactly and exhaustively
where we are going to have troubles with loops etc. etc.. and where
redistribution should be done with tools preventing these loops
(route-map, distance etc..) : but this is not my case.
So I came up with this "strategy" :
1/ do redistribution on all required routers and/ or switches
2/ write tcl scripts and / or macros
3/ run tcl / macros and see where pings are not functioning and "repair"
4/ run them on all routers annd switches until it all works without any
"repairing"
Well, I agree there must be a "shorter" & more efficient way.
If you have a constructive and rigurous way, it would be appreciated !
thanks,
Navid
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