On 08.06.2011 17:47, Dave Taht wrote: > On Wed, Jun 8, 2011 at 9:01 AM, Eric Dumazet <eric.dumazet@xxxxxxxxx> wrote: > >> Dave Taht mentioned in bloat list that netfilter ecn match was ipv4 >> only. >> >> Is there any plan to make the switch from net/ipv4/netfilter/ipt_ecn.c >> to net/netfilter/xt_ecn.c ? >> >> I can probably do it but not before ~ten days, so if someone is >> interested, this will please Dave ;) That should be a relatively quick job, I'll give it a shot while my dinner is cooking :) > The larger question I had was this > > "iptables seems to think ecn can only be looked at in TCP streams, where (for > example), ecn bits can be copied to the outer header of a udp vpn > stream, and marked > > when needed." > > ECN is an ip level standard, not just a tcp one. That probably needs a new revision and is slightly more work, lets begin by porting it to IPv6, then we can add this on top. > http://www.ietf.org/rfc/rfc3168.txt > > Example of ECN on ipsec: > > http://huchra.bufferbloat.net/~d/veryhappynetwork.png > > Also ECN marking in various qdiscs like HTB as presently being discussed on > the bloat list > > https://lists.bufferbloat.net/pipermail/bloat/2011-June/000555.html I'd suggest to make this generic so other qdiscs can use it as well. > and a truly crazy idea regarding combining DSCP with firewalling is here: > > https://lists.bufferbloat.net/pipermail/bloat/2011-June/000558.html > > To give some context as to what we've been up to regarding bufferbloat, I > have a test lab setup with a bunch of wndr3700v2 routers at georgia tech, > and have pushed every ecn and bloat related patch in linux head into the > openwrt distro, and am playing with all sorts of techniques now, with > increasingly good results. > > The 'uberwrt' project is in addition to the debloat-testing work > and has various subprojects... > > http://www.bufferbloat.net/projects/uberwrt/wiki > -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
