Virtual LANs (VLAN) | 1059Use the untagged command to move untagged interfaces from the Default VLAN to another VLAN:The no untagged interface command removes the untagged interface from a port-based VLAN and placesthe interface in the Default VLAN. You cannot use the no untagged interface command in the DefaultVLAN. Figure 53-5 illustrates the steps and commands to move an untagged interface from the DefaultVLAN to another VLAN.Figure 53-5. Example of Moving an Untagged Interface to Another VLANThe only way to remove an interface from the Default VLAN is to place the interface in Default mode byentering the no switchport command in the INTERFACE mode.Step Command Syntax Command Mode Purpose1 interface vlan vlan-id CONFIGURATION Access the INTERFACE VLAN mode of the VLANto which you want to assign the interface.2 untagged interface INTERFACE Configure an interface as untagged.This command is available only in VLAN interfaces.FTOS#show vlanCodes: * - Default VLAN, G - GVRP VLANsNUM Status Q Ports* 1 Active U Gi 3/22 Active T Po1(So 0/0-1)T Gi 3/03 Active T Po1(So 0/0-1)T Gi 3/14 InactiveFTOS#confFTOS(conf)#int vlan 4FTOS(conf-if-vlan)#untagged gi 3/2FTOS(conf-if-vlan)#show config!interface Vlan 4no ip addressuntagged GigabitEthernet 3/2FTOS(conf-if-vlan)#endFTOS#show vlanCodes: * - Default VLAN, G - GVRP VLANsNUM Status Q Ports* 1 Inactive2 Active T Po1(So 0/0-1)T Gi 3/03 Active T Po1(So 0/0-1)T Gi 3/14 Active U Gi 3/2FTOS#Use the show vlan command to determine interfacestatus. Interface (gi 3/2) is untagged and in theDefault VLAN (vlan 1).In a port-based VLAN (vlan 4), use the untaggedcommand to add the interface to that VLAN.The show vlan command output displays theinterface’s changed status (gi 3/2). Since the DefaultVLAN no longer contains any interfaces, it is listed asinactive.
