root@LEDE:/usr/lib/firewall.d# swconfig dev switch0 show
Global attributes:
	enable_vlan: 1
Port 0:
	pvid: 0
	link: port:0 link:up speed:1000baseT full-duplex txflow rxflow 
Port 1:
	pvid: 0
	link: port:1 link:down
Port 2:
	pvid: 0
	link: port:2 link:down
Port 3:
	pvid: 0
	link: port:3 link:down
Port 4:
	pvid: 3
	link: port:4 link:down
Port 5:
	pvid: 2
	link: port:5 link:up speed:100baseT full-duplex auto
VLAN 0:
	vid: 0
	ports: 0t 1 2 3 
VLAN 1:
	vid: 1
	ports: 0t 
VLAN 2:
	vid: 2
	ports: 0t 5 
VLAN 3:
	vid: 3
	ports: 0t 4