Assigning Interfaces To A Vlan - Dell C9000 Series Networking Configuration Manual

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) traffic only. Layer 2 traffic continues to
pass through the VLAN. If the VLAN is not a routed VLAN (that is, configured with an IP address), the
shutdown command has no affect on VLAN traffic.
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.
• 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
* 1 Inactive U
2 Active U
3 Active U
4 Active T
5 Active U
6 Active U
U
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
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.
Ports
Te 1/4-11
Te 0/1,18
Te 0/2,19
Te 0/3,20
Po 1
Te 0/12
Te 2/0
Configuring Layer 2 (Data Link) Mode. When you place an interface in Layer 2 mode by
Virtual LANs (VLANs) 1138