❦ 1 septembre 2017 12:53 +0300, Lennert Buytenhek <buyt...@wantstofly.org> :
>> > Starting from kernel 4.11 (commit beb1afac518d), IPv6 are now notified >> > using RTA_MULTIPATH, like IPv4 routes. Those routes are not handled >> > correctly by BIRD. We handle them correctly. This also enable to parse >> > alien routes correctly. Route modifications is still done in the old >> > way as for insertion/deletion, this is not helpful to optimize in those >> > cases and for replace, IPv4 case is not optimized either. It should be >> > possible to detect appropriate support for RTA_MULTIPATH when receiving >> > an IPv6 route with this attribute, but I don't see how it would be >> > helpful, so I didn't do it (simpler code this way). >> >> Hi >> >> Thanks for the patch, it looks OK. I will try it and merge it. >> >> We plan to simplify the multipath processing code in 2.x branch so that >> it will depend on the new kernel behavior (and therefore will require >> Linux 4.0.11 for IPv6 multipath), but we keep the current code in 1.6.x. > > We have lots of kit (e.g. https://www.arista.com/en/products/7280r-series) > that comes with: > > Linux labtest 3.4.43.Ar-3964936.4173F #1 SMP PREEMPT Mon Dec 19 > 14:31:21 PST 2016 x86_64 x86_64 x86_64 GNU/Linux > > And which is impossible for us to upgrade to newer kernel versions. > If bird 2.0 will require Linux >= 4.11 for IPv6 multipath, then > upgrading to bird 2.0 would not be an option for us. I agree with you. Currently, there is no distro with a 4.11+ kernel (Ubuntu LTS is 4.4, Debian is 4.9, CentOS is 3.13). It seems a bit early to require such a recent kernel. -- In the first place, God made idiots; this was for practice; then he made school boards. -- Mark Twain
