The following example specifies the vid of the incoming messages whose vid in the tag is 3 as 4 and
forwards it.
Ruijie# configure terminal
Ruijie(config)# vlan range 3-4
Ruijie(config-vlan-range)# exit
Ruijie(config)# interface gigabitEthernet 0/1
Ruijie(config-if)# switchport mode trunk
Ruijie(config-if)# vlan-mapping-out vlan 3 remark 4
Ruijie(config-if)# end