root@bananapi:~# swconfig dev eth0 set reset 1
root@bananapi:~# swconfig dev eth0 set enable_vlan 1
root@bananapi:~# swconfig dev eth0 vlan 101 set ports '3 8t'
root@bananapi:~# swconfig dev eth0 vlan 102 set ports '4 0 1 2 8t'
root@bananapi:~# swconfig dev eth0 set apply 1
root@bananapi:~# swconfig dev eth0 vlan 102 show
VLAN 102:
        ports: 0 1 2 4 8t
root@bananapi:~# ip link show eth0.102
Device "eth0.102" does not exist.
root@bananapi:~#