+ sw_if_idx = output["sw_if_index"]
+ if_key = Topology.add_new_port(node, "vxlan_tunnel")
+ Topology.update_interface_sw_if_index(node, if_key, sw_if_idx)
+ ifc_name = InterfaceUtil.vpp_get_interface_name(node, sw_if_idx)
+ Topology.update_interface_name(node, if_key, ifc_name)
+ return sw_if_idx