On Thu, Jan 9, 2014 at 10:43 AM, Patrik Fältström <paf@xxxxxxxxxx> wrote: > Not being an IP-routing person, but chair of SSAC in ICANN, I hear people for the reasons you bring up are more in favor of a mechanism where one talk about explicitly "filtering at the edge of the Internet" and not at every point where routes are exchanged. Where is "the edge"? Is there a boundary outside of your control that you truly trust? Even if there's supposedly unbreakable filtering at most of the edge, wouldn't you want to do your own filtering as well? It looks like the sites John talked to are multihomed, NOT doing routing at their edge (??), and yet wanting to filter? I don't think you get all three of those. Scott