Comment 9 for bug 1866445

@LIU Yulong, BTW, after we switch to openvswitch firewall, your patch can work, fix our issue, but br-int can't learn local MACs and remote MACs, do you have such issue in your deployment? but when we use iptables_hybrid firewall driver, local MACs can be learnt, remote MACs can't be learn. My point is if br-int can learn remote MACs, it won't have flood issue, we also do have flood issue, that is root cause which results in super low pps performance.