On Jun 14, 2011, at 12:57 AM, Michel Py wrote: >> Keith Moore wrote: >> 6to4 awesome. it's those BGP advertisements for broken relay >> routers, and those ISPs that filter protocol 41 that are bad. > > I won't go as far as supporting you on this one. Anything that makes the network work, good. Anything that breaks the network, bad. There are several problems with that logic: One problem is that the network doesn't entirely break or not break in the presence of feature X; it works for some people and breaks for some others. Another is that it doesn't address tussles. If feature X and feature Y are mutually incompatible, in that use of feature X breaks feature Y and vice versa, who is to say which feature is good and which is "breaking" the network? Another is that when (some) network operators configure their network in such a way as to break feature X, others use that breakage as an excuse to justify breaking even more things. Keith _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf