<ethernet_vlan_switch>.get-free-trunk-connector [vlan_id]
Returns the name of a trunk connector that is not connected to anything. The new trunk connector can have a native VLAN id if vlan_id is provided. In this case, untagged packets passing through this port will all be assumed to belong to its native VLAN. An ordinary trunk port is created if vlan_id is not specified, in which case untagged packets will not be tagged to any VLAN and will be dropped to all but other ordinary trunk ports.
eth-links