[51555] in North American Network Operators' Group

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Re: routing architectures ( was Re: AT&T NYCrouting )

daemon@ATHENA.MIT.EDU (Ross Chandler)
Thu Aug 29 16:49:16 2002

In-Reply-To:
 <Pine.LNX.4.21.0208291544260.32063-100000@cpu1693.adsl.bellglobal.com>
Date: Thu, 29 Aug 2002 21:36:25 +0100
To: nanog@merit.edu
From: Ross Chandler <ross@eircom.net>
Errors-To: owner-nanog-outgoing@merit.edu


>On Thu, 29 Aug 2002, Robert A. Hayden wrote:
>
>>  Um.  Set up more than one reflector....
>
>So how many is enough?  I would think 3 is a minimum to come close to the
>reliability/redundancy of OSPF.
>
>-Ralph


My two cents..

BGP beats OSPF in the reliability stakes easily in my experience. I'd 
put as little  as possible (loopbacks/internal links only) into OSPF. 
Two (or more)
BGP route reflectors deployed to reflect the physical topology/area structure
is explicitly redundant in a way that OSPF isn't.

Ross







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