> Op 27 feb. 2015, om 12:39 heeft Juliusz Chroboczek > <j...@pps.univ-paris-diderot.fr> het volgende geschreven: > >>> When performance in dual stack networks with multiple WiFi AP's in homes >>> suffers from homenet protocols, this WG produces dead protocols. > >> Why would homenet cause wifi APs to suffer more than they do today? > > I think Teco was reacting to the suggestion that we perform wifi-wifi > bridging at a larger scale that is done today.
I'm not advocating large layer-2 topologies. I prefer to stay away from broadcast storms and other fun. But today's WiFi stack is build on the assumption that an SSID equals an IP subnet. WiFi handover is within an SSID. My personal goal is to set up a standards based CAT5 + WiFi homenet that performs well. I can replace all my switches and wireless routers with the monthly budget for cable and mobile connections. But I cannot buy something that works, unless I tenfold the budget and buy an enterprise solution. My call is: keep going, let's solve it. If it takes TRILL, CAPWAP, CPE/cloud based SDN: so be it. I want to see two- or three-pack high-end wired/wireless homenet router kits in the shop that will replace our current gear. Teco > We'd need to actually try > it out and perform some serious measurements in order to be sure (no, I'm > not volunteering), but I'd expect it to suck, for at least the following > reasons: > > 1. 802.11 bridging is weird, there are some restrictions on the possible > topologies (but I don't recall the exact details). > > 2. I'd expect broadcast/multicast to be fun, especially if the different > APs are set up to interfere. > > 3. Things like TRILL aside, bridging performs spanning tree routing, so > unless you design your topology carefully, you have a good chance of > pushing all of your traffic through a slow link. Never mind avoiding > self-interference. > > I've already expressed my opinion (sometimes way too strongly, sorry Ted) > that I'm opposed to reliance on L2 bridging until somebody shows how it > can be made to work with good performance in a hybrid network. The 802.11s > experience doesn't encourage us to be optimistic. > > -- Juliusz _______________________________________________ homenet mailing list homenet@ietf.org https://www.ietf.org/mailman/listinfo/homenet
