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• Configure a port-based VLAN (if the VLAN-ID is different from the Default VLAN ID) and enter
INTERFACE VLAN mode.
CONFIGURATION mode
interface vlan vlan-id
To activate the VLAN, after you create a VLAN, assign interfaces in Layer 2 mode to the VLAN.
Example of Verifying a Port-Based VLAN
To view the configured VLANs, use the show vlan command in EXEC Privilege mode.
Dell#show vlan
Codes: * - Default VLAN, G - GVRP VLANs
NUM Status Q Ports
* 1 Inactive U Te 1/4-11
2 Active U Te 0/1,18
3 Active U Te 0/2,19
4 Active T Te 0/3,20
5 Active U Po 1
6 Active U Te 0/12
U Te 2/0
Dell#
Assigning Interfaces to a VLAN
You can only assign interfaces in Layer 2 mode to a VLAN using the tagged and untagged commands. To
place an interface in Layer 2 mode, use the
switchport command.
You can further designate these Layer 2 interfaces as tagged or untagged. For more information, refer to
the
Interfaces chapter and Configuring Layer 2 (Data Link) Mode. When you place an interface in Layer 2
mode by the switchport command, the interface is automatically designated untagged and placed in
the Default VLAN.
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.
916
Virtual LANs (VLANs)