On Thu, Jul 23, 2026 at 01:17:54AM +0000, Jack Ma wrote: > When an fdb entry points at a nexthop group, vxlan_fdb_nh_path_select() > resolves the selected leg's remote IP but leaves the UDP destination port > at the device default (vxlan->cfg.dst_port). > > Extend nexthop_path_fdb_result() to also return the selected nexthop's > NHA_DST_PORT (0 when unset) and have vxlan_fdb_nh_path_select() store it > in rdst->remote_port. vxlan_xmit_one() already prefers rdst->remote_port > when non-zero and falls back to the device port otherwise, so nexthops > without a port are unaffected. > > This lets one fdb nexthop group load-balance a flow across legs that > share an underlay IP but differ in UDP destination port. > > Signed-off-by: Jack Ma <[email protected]>
Reviewed-by: Ido Schimmel <[email protected]>
