para una RB850
/interface ethernet
set ether3 master-port=ether2
set ether4 master-port=ether2
/interface ethernet switch vlan
add ports=ether2,ether3 switch=switch1 vlan-id=200
add ports=ether2,ether4 switch=switch1 vlan-id=300
/interface ethernet switch port
set ether2 vlan-mode=secure vlan-header=add-if-missing
set ether3 vlan-mode=secure vlan-header=always-strip default-vlan-id=200
set ether4 vlan-mode=secure vlan-header=always-strip default-vlan-id=300
