Administrator Guide

Creating a Port-Based VLAN
To congure a port-based VLAN, create the VLAN and then add physical interfaces or port channel (LAG) interfaces to the VLAN.
NOTE: The Default VLAN (VLAN 1) is part of the system startup conguration and does not require
conguration.
A VLAN is active only if the VLAN contains interfaces and those interfaces are operationally up. As shown in the following example, VLAN 1
is inactive because it does not contain any interfaces. The other VLANs contain enabled interfaces and are active.
NOTE: In a VLAN, the shutdown command stops Layer 3 (routed) trac only. Layer 2 trac continues to pass through the
VLAN. If the VLAN is not a routed VLAN (that is, congured with an IP address), the shutdown command has no aect on
VLAN trac.
When you delete a VLAN (using the no interface vlan vlan-id command), any interfaces assigned to that VLAN are assigned to
the Default VLAN as untagged interfaces.
To create a port-based VLAN, use the following command.
• Congure a port-based VLAN (if the VLAN-ID is dierent 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 congured 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
Conguring 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 congured, 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.
Virtual LANs (VLANs)
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