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Re: Split flows across Domains
From: Robert E.Seastrom <rs () seastrom com>
Date: Tue, 24 Jan 2006 07:44:18 -0500



Glen Kent <glen.kent () gmail com> writes:

For example, an ISP can learn two different equal cost routes to a
foo.com server via two different autonomous domains. It can thus split
different flows (based on src-dest IP, src-dest Port, TOS, etc) across
these two paths.

Do operators currently do this?

Folks can send me replies offline in case this constitues a "trade secret"!

Works great with a flow-based router (or layer-three-switch-pronounced-
'crippled-router').  The downside, of course, is that you now have a
flow-based router in your network, which has been shown to Not Work
Well under other specified conditions (worm outbreaks come immediately
to mind).

                                        ---rob



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