On Wed, 12 Mar 2003, Peter E. Fry wrote:
You are right, it is depressing. However, I don't see how the penalty multiplication could happen here, you need a few hops in between for that.
Ah, but this is the Internet. Jack's two upstreams likely have direct or indirect links between them where they will also receive the route updates in question.
Dampening is done on the eBGP router where the route enters the AS, and, unless I'm mistaken, per route/path and not per prefix. So the flapping that ISP A sees from ISP B is a completely seperate thing from the flapping that ISP A sees from its customer's customer as far as the dampening algorithm is concerned.
Should we change the subject (back) to "BGP to doom us all"?
For all the criticism that BGP is subjected to, I find it curious that nobody has proposed a replacement protocol (that I'm aware of).