But any reasonable ISP realizes that by using the RADB servers is wonderful, but does not come close to preventing an: ip route 0.0.0.0 0.0.0.0 <innocent ISP>

Nor can the route servers tell when someone/something blocks packets down at the layer 2 level. Since the route servers are now being paid by the exchange point operators, maybe there is a chance the two could be coordinated. Or at least checked for conflicts? -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation