Hi Ondrej, thanks a lot for the clarification and your quick response!!! Best Regards Michail Kotsiouros ________________________________ From: Ondrej Zajicek <santiago@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: santiago@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."