Hi, After upgrading from Icehouse to Juno all networking fails, neutron and nova are building hybrid bridges so it seems. This is RDO on CentOS 7.
Situation on Icehouse: One controller node and one compute node with nova-compute and neutron-openvswitch-agent. There is only Openvswitch/ML2 using GRE, no linuxbridges. All instances (tap interfaces) are patched to the vswitch and there is regular connectivity and metadata access. After the upgrade to Juno: Openvswitch/ML2 is creating a vswitch but besides that there also are several linuxbridges created. And since those are not patched on to the vswitch, instances are unreachable. My controller node does have several tap devices on the vswitch, no linuxbridge. Nova is responsible for creating the linuxbridges, but I have no clue why it suddenly wants to go hybrid - and apparently fails doing that. Nova is calling plug_ovs_hybrid. >From nova.conf on controller and compute: linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver libvirt_vif_driver = nova.virt.libvirt.vif.LibvirtGenericVIFDriver [root@computenode ~]# brctl show bridge name bridge id STP enabled interfaces qbr68933310-a9 8000.000000000000 no qbr9c0fa825-f9 8000.000000000000 no The tap device is patched to one of those, but those bridges aren't listed with the vswitch. Regard, Harm _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
