1900x8200 and 0x9100 as the CVLAN TPID and SVLAN TPID, respectively. Otherwise, the devices cannotcorrectly identify tagged frames between them.Configuring the CVLAN TPIDStep Command Remarks1. Enter system view. system-view N/A2. Configure the TPID value forCVLAN tags.qinq ethernet-type customer-taghex-valueThe default setting is 0x8100 forCVLAN tags.Configuring the SVLAN TPIDConfigure the SVLAN TPID on service provider-side ports of PEs.On a QinQ-enabled port or customer-side QinQ-enabled port, you cannot configure the SVLAN TPID.To configure the SVLAN TPID on a service provider-side port:Step Command Remarks1. Enter system view. system-view N/A2. Enter Ethernet interface view,Layer 2 aggregate interfaceview, or port group view.• Enter Ethernet interface view orLayer 2 aggregate interfaceview:interface interface-typeinterface-number• Enter port group view:port-group manualport-group-nameN/A3. Configure the SVLAN TPID. qinq ethernet-type service-taghex-valueThe default setting is 0x8100 forSVLAN tags.QinQ configuration examplesBasic QinQ configuration exampleNetwork requirementsAs shown in Figure 64:• The two branches of Company A, Site 1 and Site 2, are connected through the service providernetwork and use CVLANs 10 through 70. The two branches of Company B, Site 3 and Site 4, areconnected through the service provider network and use CVLANs 30 through 90.• PE 1 and PE 2 are edge devices on the service provider network and are connected throughthird-party devices with a TPID value of 0x8200.Configure the edge and third-party devices to enable communication between the branches of CompanyA through SVLAN 100, and communication between the branches of Company B through SVLAN 200.
