Users Guide

To view which interfaces are tagged or untagged and to which VLAN they belong, use the show vlan
command. The following example shows that six VLANs are configured, and two interfaces are assigned to
VLAN 2. The Q column in the show vlan command example notes whether the interface is tagged (T) or
untagged (U). For more information about this command, refer to the Layer 2 chapter of the
Dell Networking
OS Command Reference Guide.
To tag frames leaving an interface in Layer 2 mode, assign that interface to a port-based VLAN to tag it with
that VLAN ID. To tag interfaces, use the following commands.
1 Access INTERFACE VLAN mode of the VLAN to which you want to assign the interface.
CONFIGURATION mode
interface vlan vlan-id
2 Enable an interface to include the IEEE 802.1Q tag header.
INTERFACE mode
tagged interface
Add an Interface to Another VLAN
To view just the interfaces that are in Layer 2 mode, use the show interfaces switchport command in
EXEC Privilege mode or EXEC mode.
The following example shows the steps to add a tagged interface (in this case, port channel 1) to VLAN 4. To
view the interface’s status. Interface (po 1) is tagged and in VLAN 2 and 3, use the show vlan command. In a
port-based VLAN, use the tagged command to add the interface to another VLAN. The
show vlan command
output displays the interface’s (po 1) changed status.
Except for hybrid ports, only a tagged interface can be a member of multiple VLANs. You can assign hybrid
ports to two VLANs if the port is untagged in one VLAN and tagged in all others.
Dell#show vlan
Codes: * - Default VLAN, G - GVRP VLANs
NUM Status Q Ports
* 1 Inactive
2 Active T Po1(So 0/0-1)
T Gi 1/1
3 Active T Po1(So 0/0-1)
T Gi 1/2
Dell#config
Dell(conf)#interface vlan 4
Dell(conf-if-vlan)#
tagged po 1
Dell(conf-if-vlan)#show conf
!
interface Vlan 4
no ip address
tagged Port-channel 1
Dell(conf-if-vlan)#end
Dell#
show vlan
Codes: * - Default VLAN, G - GVRP VLANs
NUM Status Q Ports
* 1 Inactive
Virtual LANs (VLANs) 1016