1-4Task RemarksEnabling the VLAN-VPN Feature for a Port RequiredConfiguring the TPID Value for VLAN-VPNPackets on a Port OptionalConfiguring the Inner-to-Outer Tag PriorityReplicating and Mapping Feature OptionalAs XRN fabric is mutually exclusive with VLAN-VPN, make sure that XRN fabric is disabled on theswitch before performing any of the configurations listed in the above table. For information about XRNfabric, refer to XRN Fabric Configuration in this manual.Enabling the VLAN-VPN Feature for a PortFollow these steps to enable the VLAN-VPN feature for a port:To do... Use the command... RemarksEnter system view system-view —Enter Ethernet port view interface interface-typeinterface-number —Enable the VLAN-VPN featureon the port vlan-vpn enableRequiredBy default, the VLAN-VPNfeature is disabled on a port.Configuring the TPID Value for VLAN-VPN Packets on a PortFor your device to correctly identify the VLAN tagged frames from the public network, make sure thatthe TPID you will use is the same as that used on the peer device in the public network.Follow these steps to configure the TPID for VLAN-VPN packets on a port:To do... Use the command... RemarksEnter system view system-view —Enter Ethernet port view interface interface-typeinterface-number —Set the TPID value on the port vlan-vpn tpid valueRequiredDo not set the TPID value toany of the protocol type valueslisted in Table 1-1.For 3Com series switches, theTPID defaults to 0x8100.
