Description of problem: OVN Layer 3 high availability can not detect External network failures. but there is a request to make it work and automatically HA. https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.2/html/networking_guide/assembly_work-with-ovn_rhosp-network#l3-ha-ovn_work-ovn Note: External network failures are not detected as would happen with an ML2-OVS configuration. L3 HA for OVN supports the following failure modes: - The gateway node becomes disconnected from the network (tunneling interface). - ovs-vswitchd stops (ovs-switchd is responsible for BFD signaling) - ovn-controller stops (ovn-controller removes itself as a registered node). Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
Hi YoungCheol, I have looked into the documentation you linked and I am not sure where the Note comes from. As far as I can tell, ML2/OVS backend also does not have ability to detect issues on the external(to openstack) network. Is this documentation Note the only source you have indicating that ML2/OVS has such capability? I can work with documentation to have that fixed. Thank you