H3C s3100 series Command Manual page 940

By default, the VLAN mapping function is disabled.
A port that is in a link aggregation port group cannot have the VLAN Mapping feature enabled.
With port-based VLAN mapping rules configured for a port, the VLAN mapping function is enabled
on the port at the same time. In this case, the vlan-mapping enable command cannot be used to
enable the VLAN mapping function again.
The VLAN mapping function and the protocol-based VLAN function are mutually exclusive on the
same port.
The VLAN mapping function and the VLAN marking function are mutually exclusive, refer to
QoS-QoS Profile for more information of VLAN marking function.
Related command: vlan-mapping.
Example
# Enable the VLAN mapping function on Ethernet 1/0/1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] vlan-mapping enable
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