Alpha test of MAE filtering capability

I don't think filters are a problem for third party routing as long
as the third party routing is not done in secret. If I am sending
you third party routes for someone, and you know it because I tell
you I am and you agree to let me, then you can open your filters to
the source port for those routes. Third party routes that are
being done without the knowledge of the traffic target are a bad
thing and shouldn't be done anyway...

In the third party routes scenario you describe above it is not just an issue
of you telling me that you are sending my third party routes and me opening
my filters. You must also tell the third party that you are sending me
their routes. Then they can open their filters to allow my traffic.

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