set interface l2 xconnect GigabitEthernet0/6/0 GigabitEthernet0/7/0
set interface l2 xconnect GigabitEthernet0/7/0 GigabitEthernet0/6/0
set interface l2 xconnect GigabitEthernet0/6/0 GigabitEthernet0/7/0
set interface l2 xconnect GigabitEthernet0/7/0 GigabitEthernet0/6/0