Right now wee are also looking into the same question with the help of Overlay Routing. As far as Multihoming is concerned, there is a good work by jenifer rexford http://www.cs.princeton.edu/~jrex/papers/multipath06.pdf<http://www.cs.princeton.edu/%7Ejrex/papers/multipath06.pdf>. In fact IETF guys were thinking to include it in BGP implementation. Hope it would be helpful On Wed, Nov 12, 2008 at 10:18 PM, Scott Doty <scott@sonic.net> wrote:
[ resent to list, was sent from the wrong address -sd ]
Charles Wyble wrote:
I'm working on a small experiment which utilizes multiple outbound links (in the experiments case multiple consumer 3G connections [to 2 Sprint/2 Verizon/1 AT&T], Time Warner Cable Modem and an SBC Global DSL connection.
What is the best way to do outbound traffic engineering? I would like to be able to determine the best path possible and send traffic out the appropriate link.
Not sure if this is useful, but I thought I'd contribute a point on the curve...
from NANOG 9:
http://www.academ.com/nanog/feb1997/multihoming.html
Obquote: from Paul Vixie's presentation, from Stan Barber's notes, here is the "meat of the matter":
_ _ _ _ _ _ _ Per-interface Default Route
* BSD TCP binds outbound route to PCB on SYN-ACK * Our trick: remember the inbound interface identity from the SYN * Each interface has its own "default route" * For outbound TCP and all UDP, a normal default is also needed.
_ _ _ _ _ _ _
Hope that helps...
-Scott
-- Ghulam Murtaza Lahore University of Management Sciences