Configure the Neutron OVS plug-in for VLANs on a dedicated compute node

Tell OVS to use VLANs. Edit the /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini file:

[ovs]
tenant_network_type = vlan
network_vlan_ranges = physnet1:1:4094
bridge_mappings = physnet1:br-DATA_INTERFACE

Create the bridge for the DATA_INTERFACE and add DATA_INTERFACE to it, the same way you did on the network node:
```
# ovs-vsctl add-br br-DATA_INTERFACE
# ovs-vsctl add-port br-DATA_INTERFACE DATA_INTERFACE
```
Return to the general OVS instructions.