| | ... | dut1_if1=${dut1_if1} | dut1_if2=${dut1_if2}
| | ... | dut2_if1=${dut2_if1} | dut2_if2=${dut2_if2}
| | ... | dut2_if2_ip4=${dut2_if2_ip4}
| | ... | dut1_if1=${dut1_if1} | dut1_if2=${dut1_if2}
| | ... | dut2_if1=${dut2_if1} | dut2_if2=${dut2_if2}
| | ... | dut2_if2_ip4=${dut2_if2_ip4}