Configuring two-to-two VLAN mapping

Configure two-to-two VLAN mapping on the customer-side port of an edge device that connects two SP networks, for example, on PE 3 in Figure 73. Two-to-two VLAN mapping enables two sites in different VLANs to communicate at Layer 2 across two service provider networks that use different VLAN assignment schemes.

Before you configure two-to-two VLAN mapping, create the original VLANs and the translated VLANs.

To configure two-to-two VLAN mapping:

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view.	Enter Layer 2 Ethernet interface view:interface interface-type interface-number Enter Layer 2 aggregate interface view:interface bridge-aggregation interface-number	N/A
3. Set the link type of the port.	Set the port link type to trunk:port link-type trunk Set the port link type to hybrid:port link-type hybrid	By default, the link type of a port is access.
4. Assign the port to the original VLANs and the translated VLANs.	For the trunk port:port trunk permit vlan vlan-id-list For the hybrid port:port hybrid vlan vlan-id-list tagged	N/A
5. Configure a two-to-two VLAN mapping.	vlan mapping tunnel outer-vlan-id inner-vlan-id translated-vlan outer-vlan-id inner-vlan-id	By default, no VLAN mapping is configured on an interface.

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