If full filtering (i.e. everything disallowed) we in place as the default, and each member had to provide a list of allowed points, and the members of the allowed points had to agree before the filters were installed, the model would be very similar to the ATM based NAPs. So far, the ATM based NAP's seem to work fairly well. *JMO*
All in all I see this as a huge complication in the underlying structure of the Mae's. I would be detrimental to the interconnects if ISP's used filtering as a general practice. It is a great feature to have as a way to stop an abuse that has been detected and maybe even as a punishment for abusive ISP's, but lets leave out the extra layer of complication unless it really adds something to the network
Scott Blandford IBM Global Network
Chris A. Icide