On Tue, Dec 23, 2008 at 02:08:25PM +1300, Nathan Ward wrote: > On 23/12/2008, at 1:31 PM, Seth Mattinen wrote: > >Anyone running a platform that can't take a full table would apply > >such a filter to weed out anyone who likes to announce all of their > >space as /24's for "traffic engineering". If one does that and > >doesn't announce the aggregate as well, one could find themselves > >facing random black holes. > > > People are filtering /24s without a 0/0 route? >
actually, you should ask the more general question, "Are ISPs filtering when they don't have a 0/0 route?" and i suspect the answer is almost certainly. being default-free has its advantages as does not using some variable RIR metric as a basis for routing policy. --bill