1-6Follow these steps to configure an outer VLAN tagging policy:To do... Use the command... RemarksEnter system view system-view —Enter Ethernet orLayer-2aggregateinterface viewinterface interface-typeinterface-numberEnterinterfaceview or portgroup view Enter port groupviewport-group manualport-group-nameRequiredUse either commandEnter QinQ view and configurethe SVLAN tag for the port to add qinq vid vlan-idRequiredBy default, the SVLAN tag tobe added is the default VLANtag of the receiving port.Tag frames of the specifiedCVLANs with the current SVLANraw-vlan-id inbound { all |vlan-list } Requiredz An inner VLAN tag corresponds to only one outer VLAN tag.z If you want to change an outer VLAN tag, you must delete the old outer VLAN tag configuration andconfigure a new outer VLAN tag.Configuring the TPID Value in VLAN TagsYou can configure the TPID value in VLAN tags in system view, where the configuration takes effect onall ports of the device.Follow these steps to configure a TPID value globally:To do... Use the command... RemarksEnter system view system-view —Configure the TPID value in theCVLAN tag or the SVLAN tagqinq ethernet-typehex-valueOptionalBy default, the TPID value is 0x8100QinQ Configuration ExamplesBasic QinQ Configuration ExampleNetwork requirementsz Provider A and Provider B are edge devices on the service provider network and areinterconnected through trunk ports. They belong to SVLAN 10 and 50.z Customer A1, Customer A2, Customer B1 and Customer B2 are edge devices on the customernetwork.z Third-party devices with a TPID value of 0x8200 are deployed between Provider A and Provider B.