I'm in the process of planning a small public cloud based on OpenStack. I have quite experience with kolla-ansible deployments which use OVS networking and I have no issues with that. It works stable for my use cases (Vlan provider networks, DVR, tenant networks, floating IPs).

For that new deployment I'm looking at OVN deployment which from what I read should be more performant (faster build of instances) and with ability to cover more networking features in OVN instead of needing external software like iptables/dnsmasq.

Does anyone use OVN in production and what is your experience (pros/cons)?

Is OVN mature enough to replace OVS in the production deployment (are there some basic features from OVS missing)?