(using Mitaka / Ubuntu 16 / Neutron DVR / OVS / VXLAN / l2_population) This sounds very strange (to me): recently, after a switch outage, we lost connectivity to all our Mitaka hosts. We had to enter via iLO host by host and restart networking service to regain access. Then restart neutron-openvswitch-agent to regain access to VMs.
At first glance we thought it was a problem with the NIC linux driver of the hosts not detecting link state correctly. Then we reproduced the issue simply bringing down physical interfaces for around 5 minutes, then up again. Same issue. And then.... we found that if instead of using native (ryu) OpenFlow interface in Neutron Openvswitch we used ovs-ofctl, the problem disappears. Any clue? Thanks in advance.
_______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
