-----Original Message----- From: Charles Wyble [mailto:charles@thewybles.com] Sent: Tuesday, November 04, 2008 12:32 PM To: NANOG list Subject: On the subject of multihoming
I'm working on a small experiment which utilizes multiple outbound
This sort of thing is usually done with some sort of multi-port outbound NAT device that chooses the source interface to NAT from based on some "quality" metric it generates for the destination, and a state table it keeps for all the outside IPs. Products that do this include FatPipe, Radware Linkproof, and Mushroom networks. 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.
Could this be done with a copy of the BGP tables?
Obviously as they are consumer connections, I wouldn't get a BGP feed so would need to download a copy, which has the risk of stale data. Perhaps some sort of multihop BGP setup?
I have done some research and found a lot of references to small site multihoming without BGP for link redundancy but not for traffic engineering.
Thanks.
Charles