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Date:      Wed, 8 Sep 1999 13:03:01 -0400
From:      bill@twwells.com (T. William Wells)
To:        freebsd-questions@freebsd.org
Subject:   Re: multi-homed
Message-ID:  <7r64r2$2t6v$1@twwells.com>
References:  <199909072249.QAA13309@fedde.littleton.co.us> <199909081648.AA244489326@broccoli.graphics.cornell.edu>

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: >DNS round robbin is good enough for this scenario.  Most modern
: >TCP clients follow the IETF recommendations and will try all addresses
: >listed in the DNS for a host before they give up.

At last test, this is not true for web browsers. And, in any case,
a downed line will be discovered by timeouts; this really sucks
from the user's perspective, since timeouts take just this side of
forever.

Round robin addresses are fine for load balancing. They don't
provide an adequate failover mechanism. For that, you need BGP.
One doesn't need to receive a full routing table but one does need
to broadcast ones addresses.


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