When the VSI is bound to a QinQ sub-interface, the Ethernet encapsulation mode is not supported. There are command line restrictions, which are the same for all versions.
The summary of Handling of VLANs in Packets in Various Versions of L2VPN Configurations .http://forum.huawei.com/enterprise/en/forum.php?mod=viewthread&tid=453137
This post was last edited by Barret at 2018-06-30 03:45.