Comment 3 for bug 1851745

I see you do trunk networking so you have to use bond0 for external networks. We use similar setups and I'll show you my network and k-a configurations.

1. Network setup: http://paste.openstack.org/show/785908/
2. Kolla Ansible setup: http://paste.openstack.org/show/785909/

The key point is you cannot use a vlan interface with openvswitch. br-ex must be bridged directly to the bonded interface or another way is to do bonding with openvswitch.