On Wed, Feb 19, 2020 at 3:18 AM Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp> wrote:
Christopher Morrow wrote:
2 way flow means something on your home host or home gateway. It means very little at internet scale... since, in many cases, you -> server and server -> you are not sharing many of the same links / routers / etc.
Subject suggests it's retail ISP to homes, which are unlikely to be multihomed.
It probably depends on where you want to do such limiting, right? "At peering/transit edge" - save your core, dont' carry traffic you "know" you will throw away anyway. "At the customer edge" - scaling of state management could be problematic && you'll carry this 'bad' traffic across your network. Note: I'm not really casting aspersions on either part of the whole argument here, just attempting to provide some color to the parts which seem 'unlikely to be successful' I think for a bunch of this discussion there are N folks with M goals, and eventually 'the market will dictate' which final direction we travel.