Basically, injecting current traffic state information into routing system is a recipe for disaster. "Normal" flap due to equipment failures and human interventions is bad enough already. Somehow people in academia tend to underappreciate the sheer scale of the Internet, and offer solutions which won't work at that scale. --vadim On Fri, 14 Feb 2003, Pete Kruckenberg wrote:
http://www.scienceblog.com/community/article1018.html
"Roughgarden has a suggestion that wouldn't be expensive to implement. Before deciding which way to send information, he says, routers should consider not only which route seems the least congested, but also should take into account the effect that adding its own new messages will have on the route it has chosen. That would be, he says, 'just a bit altruistic' in that some routers would end up choosing routes that were not necessarily the fastest, but the average time for all users would decrease."