[e2e] YNT: A Question on the TCP handoff/incremental routechange

[Randy Bush]

> seems like somethign one could look at - there's work by randy bush
> that shows that when the routing control plane is attacked, the
> forwarding/data plane is remarkably stable despite inability of 
> new routes to be  computed

often what seems to happen is what we call "curve ball routing,"
though i am sure you cricket players have a different term.

new routing propagates in sort of a wave front.  packets proceed
from source on old routing information until they reach a router to
which new information has propagated, and then they proceed on new
data.

we have empirical reason to suspect that a packet can pass through
more than two (old and new) routing information states enroute to a
destination.

and credit should also go to tim, morley, jun, and a couple of
oregon grad students (see upcoming pam2006 paper).

randy