In the GUI, where should the BIG-IP Administrator configure an existing VLAN named external to...

In the BIG-IP system, VLANs are the logical entities that group physical interfaces or trunks together. To modify how a VLAN interacts with an interface, the administrator must navigate to the specific VLAN configuration object.

VLAN List: This section displays all existing VLANs configured on the system.

Interface Association: Within the properties of a specific VLAN (in this case, " external " ), there is an Interfaces section. This is where physical ports or trunks are assigned to the VLAN.

Tagging Status: For each associated interface, the administrator can choose between Tagged (802.1Q) or Untagged .

Untagged: The interface will treat incoming traffic without a VLAN header as part of this VLAN, and outgoing traffic will not have a VLAN tag added. An interface can only be " Untagged " for one VLAN.

Tagged: Allows an interface to carry traffic for multiple VLANs simultaneously by using 802.1Q headers.