Hi Ondrej, thanks a lot for the clarification and your quick response!!! Best Regards Michail Kotsiouros ________________________________ From: Ondrej Zajicek <santi...@crfreenet.org> Sent: Tuesday, January 23, 2018 4:36 PM To: ?????? ?????????? Cc: bird-users@network.cz Subject: Re: IPv6 multipath static routes with different weights and BFD supervision
On Mon, Jan 22, 2018 at 03:39:06PM +0000, ?????? ?????????? wrote: > Hi BIRD experts, > I face some problems on static routes on IPv6. I try to configure multipath > static routes that are supervised with BFD. I use the following conf: > route <DEST_IPv6> multipath > via <NEXT_HOP1_IPv6> weight 10 bfd > via <NEXT_HOP2_IPv6> weight 20 bfd; > This does not seem to have the expected behavior since I notice that the > static routes are configured with the same priority rather than having the > less weighted one with higher priority than the more weighted. > When I try to check the routes passed to the kernel I notice this: > <DEST_IPv6> via <NEXT_HOP1_IPv6> dev eth3 proto bird metric 1024 > <DEST_IPv6> via <NEXT_HOP2_IPv6> dev eth5 proto bird metric 1024 > The same configuration for IPv4 works as expected... > could you, please, give me some initial orientation regarding the issue? Hi I think that older kernels (ones that report IPv6 ECMP routes as multiple routes) do not support weight for IPv6. On Jessie, i cannot set IPv6 weighted ECMP even using 'ip route add'. Not sure about newer kernels. BIRD uses older IPv6-ECMP API for route changes (to be compatible with older kernels), so we do not support weight here neither. -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santi...@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
