Description of problem: Duplicate IP set on switch in ovn-northd.log Version-Release number of selected component (if applicable): ovn20.09.0-9 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:20.0.49.25:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=20.0.49.25 systemctl restart ovn-controller # s2 ovn-nbctl ls-add s2 -- add Logical_Switch s2 other_config subnet=172.16.102.0/24 ovn-nbctl lsp-add s2 s2_r1 ovn-nbctl lsp-set-type s2_r1 router ovn-nbctl lsp-set-addresses s2_r1 "00:de:ad:ff:01:02 172.16.102.1 2001:db8:102::1" ovn-nbctl lsp-set-options s2_r1 router-port=r1_s2 Actual results: error in ovn-northd.log: 2020-11-04T06:44:57.929Z|00007|ovn_northd|WARN|Duplicate IP set on switch s2: 172.16.102.1 Expected results: no error Additional info: