From: David Ahern <d...@cumulusnetworks.com> Date: Thu, 7 Apr 2016 07:21:00 -0700
> Multipath route lookups should consider knowledge about next hops and not > select a hop that is known to be failed. > > Example: ... > The failed path can be avoided by considering known neighbor information > when selecting next hops. If the neighbor lookup fails we have no > knowledge about the nexthop, so give it a shot. If there is an entry > then only select the nexthop if the state is sane. This is similar to > what fib_detect_death does. > > To maintain backward compatibility use of the neighbor information is > based on a new sysctl, fib_multipath_use_neigh. > > Signed-off-by: David Ahern <d...@cumulusnetworks.com> Applied, thanks.
