multihoming without BGP

Rodney Joffe rjoffe at
Wed Jun 11 18:49:43 UTC 1997

> -----Original Message-----
> From:	Paul A Vixie [SMTP:paul at]
> Sent:	Wednesday, June 11, 1997 11:35 AM
> To:	nanog at
> 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

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