Displaying QinQ 161n The Voice VLAN feature is mutually exclusive with the QinQ feature for a port.■ When you use the specific command to enable the Voice VLAN feature for aQinQ-enabled port, the switch will prompt errors.■ If you use the copy configuration command to duplicate the configuration ofa port to a QinQ-enabled port, the Voice VLAN feature is not duplicated.c CAUTION: The 3C16863 and 3C16862 I/O Modules do not support the QinQfeature.Displaying QinQ After the configuration above, you can verify QinQ configuration by executing thedisplay command in any view.QinQ ConfigurationExampleNetwork requirements■ Switch A, Switch B, and Switch C are Switch 7750s.■ Two networks are connected to the Ethernet2/0/1 ports of Switch A and SwitchC.■ Switch B only permits the packets of VLAN 10.■ It is required that packets of the VLANs other than VLAN 10 be exchangedbetween the networks connected to Switch A and Switch C.Enter Ethernet port view interface interface-typeinterface-number-Enable QinQ for the port vlan-vpn enable RequiredBy default, QinQ is disabled on aport.Configure inner-to-outertag priority mappingvlan-vpn priorityinner-priority remarkouter-priorityOptionalTable 98 Configure QinQOperation Command DescriptionTable 99 Display QinQ configurationOperation Command DescriptionDisplay the QinQ configurationof all the portsdisplay port vlan-vpn This command can be executed inany view.
