Re: how is cold-potato done?

On Wed, 26 Jun 2002, Ralph Doncaster wrote:

If I peer with network X in cities A and B, and receive the same route in both cities with an AS-path of X, how do I know which city to use for an exit? I can understand how if X uses communities to tag the geographic origin of the traffic, but I'm not aware of many networks that do this. Lots of networks claim to use cold-potato routing though, so how do they do it?

MED's are one way.. External traceroute kungfu feeding a routeserver are another.