152 | VLAN Commandsw w w . d e l l . c o m | s u p p o r t . d e l l . c o m RelatedCommandsdvlan-tunnel ethertypeThis command configures the etherType for all vlan-stack (Double VLAN tagging) interfaces on thesystem. The setting is enabled by default, with the vman value. When enabled, all STP BPDUscoming in at a customer port are sent double-tagged, while BPDUs coming in at provider ports are not.Syntax dvlan-tunnel ethertype {802.1Q | vman | custom 0-65535}The etherType may have the values of 802.1Q, vman, or custom. For custom, the value of theetherType must be set to a number from 0 to 65535.The no version of this command configures the etherType for the specified interface to the defaultvalue.Default vmanMode Global Config; Interface Range, which is indicated by the (conf-if-range-interface)# prompt, such as(conf-if-range-vlan 10-20)#.CommandHistoryRelatedCommandsmode dot1q-tunnelThis command is used to enable Double VLAN Tunneling on the specified interface. By default,Double VLAN Tunneling is disabled. This command performs the same function as modedvlan-tunnel.The no version of this command is used to disable Double VLAN Tunneling on the specified interface.By default, Double VLAN Tunneling is disabled.dvlan-tunnell2pdu-forwarding enableEnable/disable the l2pdu-forwarding mode.show dvlan-tunnell2pdu-forwardingDisplays the current l2pdu tunneling configuration on the switch.show dot1q-tunnel Displays whether an interface is enabled for Double VLAN Tunneling, alongwith the system-configured etherType and detailed information about DoubleVLAN Tunneling for the specified interface, or a list of interfaces and theirtunneling status.Version 2.5.2 Unsupported: This command was not tested in SFTOS 2.5.2, so is not supportedVersion 2.5.1 Unsupported: This command was not tested in SFTOS 2.5.1, so is not supportedVersion 2.3 Interface Range mode addedinterface range Defines an interface range and accesses the Interface Range modeshow dot1q-tunnel Displays the configured etherType and other information about DoubleVLAN Tunneling for a specified interface or for all interfaces.show dvlan-tunnell2pdu-forwardingDisplays the current l2pdu tunneling configuration present on the switch.
