2015-12-14 23:02 GMT+08:00 Shaun Crampton <Shaun.Crampton@metaswitch.com>:

Hi,

I found a few messages in the archive that mention multi path and ECMP but the website says it's TODO. I was just wondering what the status is? I'm interested in having BIRD configure the Linux routing table for ECMP, if possible.

Thanks,

-Shaun

I am curious about this topic also. several years ago I use bird 1.4 + ospf ecmp at linux 2.6 (rehl6 and openwrt AA), they work quite well so I don't think much about it.

recently I try bird 1.4.5 + ospf ecmp at linux 3.10/3.16 (rhel7 and openwrt CC), they work very bad. after study I realize it's because linux kernel 3.6 remove routing cache.

but the situation may get better since the new patch get merged in kernel 4.4 https://lwn.net/Articles/657431/

I have heard that bird 1.5 get some new functions about ecmp, but I can not find out what are them. can anybody give some hint about what's new in bird ecmp?