This is an automatically-generated clone of issue https://bugzilla.redhat.com/show_bug.cgi?id=2224199
tested with following script: 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 ovn-nbctl ls-add ls1 ovn-nbctl lsp-add ls1 ls1p1 ovn-nbctl lsp-set-addresses ls1p1 "00:00:00:01:01:02 192.168.1.1 2001::1" ovn-nbctl lsp-add ls1 ls1p2 ovn-nbctl lsp-set-addresses ls1p2 "00:00:00:01:02:02 192.168.1.2 2001::2" ovn-nbctl lr-add lr1 ovn-nbctl lrp-add lr1 lr1-ls1 00:00:00:00:00:01 192.168.1.254/24 2001::a/64 ovn-nbctl lsp-add ls1 ls1-lr1 ovn-nbctl lsp-set-addresses ls1-lr1 "00:00:00:00:00:01 192.168.1.254 2001::a" ovn-nbctl lsp-set-type ls1-lr1 router ovn-nbctl lsp-set-options ls1-lr1 router-port=lr1-ls1 ovn-nbctl lrp-add lr1 lr1-ls2 00:00:00:00:00:02 192.168.2.254/24 2002::a/64 ovn-nbctl ls-add ls2 ovn-nbctl lsp-add ls2 ls2-lr1 ovn-nbctl lsp-set-addresses ls2-lr1 "00:00:00:00:00:02 192.168.2.254 2002::a" ovn-nbctl lsp-set-type ls2-lr1 router ovn-nbctl lsp-set-options ls2-lr1 router-port=lr1-ls2 ovn-nbctl lsp-add ls2 ls2p1 ovn-nbctl lsp-set-addresses ls2p1 "00:00:00:02:01:02 192.168.2.1 2002::1" ovn-nbctl lsp-add ls1 ls1p3 ovn-nbctl lsp-set-addresses ls1p3 "00:00:00:01:03:02 192.168.1.3 2001::3" ovs-vsctl add-port br-int ls1p1 -- set interface ls1p1 type=internal external_ids:iface-id=ls1p1 ip netns add ls1p1 ip link set ls1p1 netns ls1p1 ip netns exec ls1p1 ip link set lo up ip netns exec ls1p1 ip link set ls1p1 address 00:00:00:01:01:02 ip netns exec ls1p1 ip link set ls1p1 up ip netns exec ls1p1 ip addr add 192.168.1.1/24 dev ls1p1 ip netns exec ls1p1 ip addr add 2001::1/64 dev ls1p1 ip netns exec ls1p1 ip route add default via 192.168.1.254 ip netns exec ls1p1 ip -6 route add default via 2001::a ovs-vsctl add-port br-int ls1p2 -- set interface ls1p2 type=internal external_ids:iface-id=ls1p2 ip netns add ls1p2 ip link set ls1p2 netns ls1p2 ip netns exec ls1p2 ip link set lo up ip netns exec ls1p2 ip link set ls1p2 address 00:00:00:01:02:02 ip netns exec ls1p2 ip link set ls1p2 up ip netns exec ls1p2 ip addr add 192.168.1.2/24 dev ls1p2 ip netns exec ls1p2 ip addr add 2001::2/64 dev ls1p2 ip netns exec ls1p2 ip route add default via 192.168.1.254 ip netns exec ls1p2 ip -6 route add default via 2001::a ovs-vsctl add-port br-int ls2p1 -- set interface ls2p1 type=internal external_ids:iface-id=ls2p1 ip netns add ls2p1 ip link set ls2p1 netns ls2p1 ip netns exec ls2p1 ip link set lo up ip netns exec ls2p1 ip link set ls2p1 address 00:00:00:02:01:02 ip netns exec ls2p1 ip link set ls2p1 up ip netns exec ls2p1 ip addr add 192.168.2.1/24 dev ls2p1 ip netns exec ls2p1 ip addr add 2002::1/64 dev ls2p1 ip netns exec ls2p1 ip route add default via 192.168.2.254 ip netns exec ls2p1 ip -6 route add default via 2002::a ovn-nbctl set logical_router lr1 options:chassis=hv1 ovn-nbctl lr-nat-add lr1 snat 172.17.1.1 192.168.1.1 ovn-nbctl --wait=hv ovs-vsctl list bridge result on ovn23.06-23.06.0-50.el9: [root@kvm-01-guest10 bz2227123]# ovs-vsctl list bridge _uuid : 59c4b97e-b02f-4ecb-bf4a-82ac99e77364 auto_attach : [] controller : [] datapath_id : "0000fe9d7b30debf" datapath_type : system datapath_version : "<unknown>" external_ids : {ct-zone-8bb78f1f-a23d-4486-9b72-a474fc08c0a6_dnat="3", ct-zone-8bb78f1f-a23d-4486-9b72-a474fc08c0a6_snat="10", ct-zone-a644dcee-a936-47da-a26f-6658fb8b1846_dnat="2", ct-zone-a644dcee-a936-47da-a26f-6658fb8b1846_snat="11", ct-zone-c5e34a00-dacd-4db5-ad89-d33e8b6d58d4_dnat="6", ct-zone-c5e34a00-dacd-4db5-ad89-d33e8b6d58d4_snat="12", ct-zone-lr1-ls1="9", ct-zone-lr1-ls2="7", ct-zone-ls1-lr1="8", ct-zone-ls1p1="1", ct-zone-ls1p2="5", ct-zone-ls2-lr1="4", ct-zone-ls2p1="13", ovn-startup-ts="1692254266164"} <== ct-zone name is related to UUID fail_mode : secure flood_vlans : [] flow_tables : {} ipfix : [] mcast_snooping_enable: false mirrors : [] name : br-int netflow : [] other_config : {disable-in-band="true", hwaddr="fe:9d:7b:30:de:bf"} ports : [75c4664b-1361-48bb-878c-627e6265e24f, 8c74f3b8-14e9-46b6-97d3-349e41b496af, e2407006-379a-48e2-9e89-eb67e4e6f10b, fbb53f38-b1cc-4bba-99d7-c79207b1965d] protocols : [] rstp_enable : false rstp_status : {} sflow : [] status : {} stp_enable : false result on ovn23.06-23.06.0-56.el9: [root@kvm-01-guest10 ~]# rpm -qa | grep -E "ovn23.06|openvswitch3.1" openvswitch3.1-3.1.0-45.el9fdp.x86_64 ovn23.06-23.06.0-56.el9fdp.x86_64 ovn23.06-central-23.06.0-56.el9fdp.x86_64 ovn23.06-host-23.06.0-56.el9fdp.x86_64 [root@kvm-01-guest10 ~]# ovs-vsctl list bridge _uuid : 59c4b97e-b02f-4ecb-bf4a-82ac99e77364 auto_attach : [] controller : [] datapath_id : "0000fe9d7b30debf" datapath_type : system datapath_version : "<unknown>" external_ids : {ct-zone-lr1-ls1="9", ct-zone-lr1-ls2="7", ct-zone-lr1_dnat="6", ct-zone-lr1_snat="12", ct-zone-ls1-lr1="8", ct-zone-ls1_dnat="3", ct-zone-ls1_snat="10", ct-zone-ls1p1="1", ct-zone-ls1p2="5", ct-zone-ls2-lr1="4", ct-zone-ls2_dnat="2", ct-zone-ls2_snat="11", ct-zone-ls2p1="13", ovn-startup-ts="1692254370328"} <=== ct-zone name is related to ls/lr name fail_mode : secure flood_vlans : [] flow_tables : {} ipfix : [] mcast_snooping_enable: false mirrors : [] name : br-int netflow : [] other_config : {disable-in-band="true", hwaddr="fe:9d:7b:30:de:bf"} ports : [75c4664b-1361-48bb-878c-627e6265e24f, 8c74f3b8-14e9-46b6-97d3-349e41b496af, e2407006-379a-48e2-9e89-eb67e4e6f10b, fbb53f38-b1cc-4bba-99d7-c79207b1965d] protocols : [] rstp_enable : false rstp_status : {} sflow : [] status : {} stp_enable : false