Tomas Vondra <vondra@...> writes: > The setup has 3 network nodes and 1 compute node currently hosting a virtual > network (GRE based). DVR is enabled. I have just added IPv6 to this network > and to the external network (VLAN based). The virtual network is set to SLAAC. > > However, the link-local router address and associated MAC address is the > same in all 4 qr namespaces. About 16% packets get lost in randomly occuring > bursts. Openvswitch forwarding tables are flapping and I think that the > packet loss occurs at the moment when all 4 switches learn the MAC address > through a GRE tunnel simultaneously.
I'm convinced it is a bug that was probably not fixed yet. Filing bug report. https://bugs.launchpad.net/neutron/+bug/1596473 Tomas _______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
