Description of problem: QinQ doesn't work with ovn Version-Release number of selected component (if applicable): ovn-2021-21.03.0-34.el8fdp.x86_64 How reproducible: Always Steps to Reproduce: systemctl start openvswitch systemctl start ovn-northd ovn-nbctl set-connection ptcp:6641 ovn-sbctl set-connection ptcp:6642 ovs-vsctl set open . external_ids:system-id=hv1 external_ids:ovn-remote=tcp:127.0.0.1:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=127.0.0.1 systemctl restart ovn-controller ovs-vsctl set Open_vSwitch . other_config:vlan-limit=0 ovs-vsctl add-br br-provider ovs-vsctl set open . external_ids:ovn-bridge-mappings=provider:br-provider ovn-nbctl ls-add ls1 ovn-nbctl lsp-add ls1 ls1p1 ovn-nbctl lsp-set-addresses ls1p1 "00:00:00:01:01:01" ovn-nbctl lsp-add ls1 ls1p2 ovn-nbctl lsp-set-addresses ls1p2 "00:00:00:01:01:02" ovn-nbctl set logical_switch ls1 other_config:vlan-passthru=true ovs-vsctl add-port br-int ls1p1 -- set interface ls1p1 type=internal external_ids:iface-id=ls1p1 ovs-vsctl add-port br-int ls1p2 -- set interface ls1p2 type=internal external_ids:iface-id=ls1p2 ovn-nbctl lsp-add ls1 ls1p1-c ls1p1 4 ovn-nbctl lsp-set-addresses ls1p1-c "00:00:00:01:04:01" ovn-nbctl lsp-add ls1 ls1p2-c ls1p2 4 ovn-nbctl lsp-set-addresses ls1p2-c "00:00:00:01:04:02" ip netns add ls1p1 ip link set ls1p1 netns ls1p1 ip netns exec ls1p1 ip link set ls1p1 address 00:00:00:01:01:01 ip netns exec ls1p1 ip link set ls1p1 up ip netns exec ls1p1 ip addr add 1.1.1.1/24 dev ls1p1 ip netns exec ls1p1 ip link add link ls1p1 name ls1p1.4 type vlan proto 802.1ad id 4 ip netns exec ls1p1 ip link set ls1p1.4 address 00:00:00:01:04:01 ip netns exec ls1p1 ip link set ls1p1.4 up ip netns exec ls1p1 ip addr add 1.1.4.1/24 dev ls1p1.4 ip netns exec ls1p1 ip link add link ls1p1.4 name ls1p1.4.3 type vlan id 3 ip netns exec ls1p1 ip link set ls1p1.4.3 up ip netns exec ls1p1 ip addr add 1.1.3.1/24 dev ls1p1.4.3 ip netns add ls1p2 ip link set ls1p2 netns ls1p2 ip netns exec ls1p2 ip link set ls1p2 address 00:00:00:01:01:02 ip netns exec ls1p2 ip link set ls1p2 up ip netns exec ls1p2 ip addr add 1.1.1.2/24 dev ls1p2 ip netns exec ls1p2 ip link add link ls1p2 name ls1p2.4 type vlan proto 802.1ad id 4 ip netns exec ls1p2 ip link set ls1p2.4 address 00:00:00:01:04:02 ip netns exec ls1p2 ip link set ls1p2.4 up ip netns exec ls1p2 ip addr add 1.1.4.2/24 dev ls1p2.4 ip netns exec ls1p2 ip link add link ls1p2.4 name ls1p2.4.3 type vlan id 3 ip netns exec ls1p2 ip link set ls1p2.4.3 up ip netns exec ls1p2 ip addr add 1.1.3.2/24 dev ls1p2.4.3 ip netns exec ls1p1 ping 1.1.1.2 -c 1 ip netns exec ls1p1 ping 1.1.4.2 -c 1 ip netns exec ls1p1 ping 1.1.3.2 -c 1 Actual results: ping failed Expected results: ping should pass Additional info: [root@wsfd-advnetlab21 ~]# rpm -qa | grep -E "ovn|openvswitch2.15" ovn-2021-21.03.0-34.el8fdp.x86_64 openvswitch2.15-2.15.0-22.el8fdp.x86_64 ovn-2021-central-21.03.0-34.el8fdp.x86_64 ovn-2021-host-21.03.0-34.el8fdp.x86_64