Looks more like a libvirt error, or nova side problem. Neutron does not take responsibilities to create the tap-XXX device. It is plugged by nova-compute. Need to find out why the tap device is not created before TC rules creating.
Looks more like a libvirt error, or nova side problem. Neutron does not take responsibilities to create the tap-XXX device. It is plugged by nova-compute. Need to find out why the tap device is not created before TC rules creating.