2.2.

$ openstack network create radio --provider-physical-network radio --provider-network-type flat --external

$ openstack network create uplink --provider-physical-network uplink --provider-network-type vlan --external

$ openstack subnet create --network radio --subnet-range <radio_network_subnet_range> radio

$ openstack subnet create --network uplink --subnet-range <uplink_network_subnet_range> uplink