Hi, all I followed this guide[1] to create trunk ports and created a vm by using trunk port. But I met a weird problem. OVS agent didn't generate " tbr " bridge. All the OVS bridges shows below: " [root at server-64 ~]# ovs-vsctl list-br br-int br-physnet4 br-tun " Why did the OVS agent doesn't create " tbr " bridge ? I think I must miss something but I don't know. I enabled " trunk " in service_plugins configuration in neutron server. And I did not add anything in OVS agent. Did I miss any configuration in OVS agent ? Thanks Zhi Chang [1]: https://wiki.openstack.org/wiki/Neutron/TrunkPort#CLI_usage_example -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20161115/fd660a2d/attachment.html>