Hello, I have stable/victoria baremetal openstack with octavia installed on centos8 using openvswitch mechanism driver: octavia api on controller, health-manager,housekeeping,worker on 3 compute/network nodes. Official docs include only ubuntu with linuxbridge mechanism but I used https://github.com/prastamaha/openstack-octavia as a reference to get it working on centos8 with ovs. I will push those docs instructions for centos8 soon: https://github.com/openstack/octavia/tree/master/doc/source/install. I created basic http scenario using https://docs.openstack.org/octavia/victoria/user/guides/basic-cookbook.html#.... Loadbalancer works but its operational status is offline (openstack_loadbalancer_outputs.txt). On all octavia workers I see the same warning message in health_manager.log: Health Manager experienced an exception processing a heartbeat message from ('172.31.255.233', 1907). Ignoring this packet. Exception: 'NoneType' object has no attribute 'encode' I've searched for related active bug but all I found is this not related in my opinion: https://storyboard.openstack.org/#!/story/2008615 I'm attaching all info I've gathered: - octavia.conf and health_manager debug logs (octavia_config_and_health_manager_logs.txt) - tcpdump from amphora VM (tcpdump_from_amphora_vm.txt) - tcpdump from octavia worker (tcpdump_from_octavia_worker.txt) - debug amphora-agent.log from amphora VM (amphora-agent.log) Can you point me to the right direction what I have missed? Thanks! Piotr Mossakowski https://github.com/moss2k13