Configuring transparent transmission for VLANs
You can exclude traffic of a VLAN (for example, the management VLAN) from the QinQ tagging action on a customer-side port. This VLAN is called a transparent VLAN.
To ensure successful transmission for a transparent VLAN, follow these configuration guidelines:
Set the link type of the port to trunk or hybrid, and assign the port to its PVID and the transparent VLAN.
Do not configure any other VLAN manipulation actions for the VLAN on the port.
Make sure all ports on the traffic path permit the VLAN to pass through.
To enable transparent transmission for a list of VLANs:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view. | interface interface-type interface-number | N/A |
3. Configure the port link type. | port link-type { hybrid | trunk } | By default, the link type of ports is access. |
4. Configure the port to allow packets from its PVID and the transparent VLANs to pass through. |
| By default, trunk ports allow only packets from VLAN 1 to pass through. Hybrid ports allow only packets from VLAN 1 to pass through untagged. |
5. Enable QinQ on the port. | qinq enable | By default, QinQ is disabled. |
6. Specify transparent VLANs. | qinq transparent-vlan vlan-list | By default, transparent transmission is not configured for any VLANs on a port. |