186• For VLANs whose packets are to be transparently transmitted through a port, do not configureVLAN mapping for them on the port. For more information about VLAN mapping, see "ConfiguringVLAN mapping."Configuration procedureTo configure VLAN transparent transmission:Step Command Remarks1. Enter system view. system-view N/A2. Enter interface view or portgroup view.• Enter Layer 2 Ethernet interface viewor Layer 2 aggregate interface view:interface interface-typeinterface-number• Enter port group view:port-group manual port-group-nameUse either command.3. Configure the link type ofthe ports. port link-type { hybrid | trunk } N/A4. Configure the ports to allowpackets from its PVID andthe transparent VLANs topass through.• When the ports are hybrid ports:port hybrid vlan vlan-id-list { tagged |untagged }• When the ports are trunk ports:port trunk permit vlan { vlan-id-list |all }Use either command.5. Enable basic QinQ on theports. qinq enable By default, basic QinQ isdisabled on ports.6. Configure VLANtransparent transmission onthe ports.qinq transparent-vlan vlan-list By default, VLAN transparenttransmission is not configured.Configuring selective QinQConfiguring an outer VLAN tagging policyBasic QinQ can only tag received frames with the PVID tag of the receiving port. Selective QinQ allowsadding different outer VLAN tags based on different inner VLAN tags.The S3600V2 Switch Series achieves the selective QinQ feature through QoS policies. For moreinformation about QoS policies, see ACL and QoS Configuration Guide. To enable the switch to tagtagged packets based on inner VLAN tags, follow these steps:1. Configure a class to match packets with certain tags.2. Configure a traffic behavior to tag packets with an outer VLAN tag.3. Create a QoS policy and associate the class with the behavior in the policy.4. Apply the QoS policy to the port that connects to the user.To configure selective QinQ:Step Command Remarks1. Enter system view. system-view N/A