+++ This bug was initially created as a clone of Bug #2131270 +++ Today, OVS can't set certain flags on NA packets and OVN needs to implement the NDP responder via a controller action [0] rather than via flows (as with ARP). This creates an unwanted dependency on ovn-controller running for dataplane(IPv6) traffic leading to potential glitches and downtime in the event of updates of ovn-controller and a potential bottleneck (only one thread handling controller actions). There was a proposal upstream [1] and a request [2] a while back that didn't seem to get traction. This BZ is to track the inclusion of the feature in OVN once OVS implements the missing bits. [0] https://github.com/ovn-org/ovn/blob/2e4f393650ccf298f26787583c13a88197ba8348/controller/pinctrl.c#L6030 [1] http://patchwork.ozlabs.org/project/openvswitch/patch/20200928134947.48269-1-fankaixi.li@bytedance.com/ [2] https://mail.openvswitch.org/pipermail/ovs-discuss/2020-July/050388.html
*** This bug has been marked as a duplicate of bug 1920499 ***