Description of problem: Executing these commands in the same transaction no longer works. ovn-nbctl complains: [root@ovn-control-plane ~]# ovn-nbctl lr-nat-list GR_`hostname` TYPE EXTERNAL_IP EXTERNAL_PORT LOGICAL_IP EXTERNAL_MAC LOGICAL_PORT snat 172.18.0.3 10.244.0.0/16 [root@ovn-control-plane ~]# ovn-nbctl lr-nat-del GR_`hostname` snat 10.244.0.0/16 -- lr-nat-add GR_`hostname` snat 172.18.0.3 10.244.0.0/16 ovn-nbctl: 172.18.0.3, 10.244.0.0/16: a NAT with this external_ip and logical_ip already exists [root@ovn-control-plane ~]# rpm -qa | grep ovn ovn-20.12.0-25.fc33.x86_64 ovn-central-20.12.0-25.fc33.x86_64 ovn-host-20.12.0-25.fc33.x86_64 ovn-vtep-20.12.0-25.fc33.x86_64 [root@ovn-control-plane ~]# rpm -qa | grep openvs openvswitch-2.15.0-1.fc33.x86_64 python3-openvswitch-2.15.0-1.fc33.x86_64 This used to work in previous versions. As Numan found the root cause looks to be: https://github.com/ovn-org/ovn/commit/278ebb999411920206980f6b1b8c9b2d0b69d299
*** Bug 1928226 has been marked as a duplicate of this bug. ***
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