| | When VLAN subinterfaces initialized on 3-node topology
| | ... | ${dut1_node} | ${dut1_to_dut2} | ${dut2_node} | ${dut2_to_dut1} | ${subid}
| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
| | When VLAN subinterfaces initialized on 3-node topology
| | ... | ${dut1_node} | ${dut1_to_dut2} | ${dut2_node} | ${dut2_to_dut1} | ${subid}
| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}