[10024] in North American Network Operators' Group

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RE: multihoming without BGP

daemon@ATHENA.MIT.EDU (Rodney Joffe)
Wed Jun 11 15:04:59 1997

From: Rodney Joffe <rjoffe@genuity.net>
To: "'Paul A Vixie'" <paul@vix.com>
Cc: "'nanog@merit.edu'" <nanog@merit.edu>
Date: Wed, 11 Jun 1997 11:49:43 -0700





> -----Original Message-----
> From:	Paul A Vixie [SMTP:paul@vix.com]
> Sent:	Wednesday, June 11, 1997 11:35 AM
> To:	nanog@merit.edu
> Subject:	Re: multihoming without BGP 
> 
> <snip>
> 
> The way I think of this is that BGP describes reachability, and
> clients need
> to know about topology in order to select the right web server, and
> these two
> (reachability and topology) are necessarily unrelated to each other.
> 
> I think that there is another important element or metric that is not
> served by either - packet loss across the path. You know a server is
> reachable - BGP tells you. If you know the topology, you know it is
> "close". But looking at a typical day at MAE East, for example, when
> you take into account the packets that end up being dropped, it may
> *not* be the 'best' path. 
> 
> 
> Rodney Joffe
> Chief Technology Officer
> Genuity Inc., a Bechtel company
> http://www.genuity.net
> 

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