A port-based VLAN is a VLAN in which you explicitly configure the ports to be in the VLAN. When you create a port-based VLAN on a device, you assign a VLAN identification number (VLAN ID) and specify the ports that belong to the VLAN. These port members are always active port members. The VLAN ID is used to coordinate VLANs across multiple switches. Any type of frame can be classified to a port-based VLAN.
The example in the following figure shows two port-based VLANs: one for the marketing department, and one for the sales department. Ports are assigned to each port-based VLAN. A change in the sales area can move the sales representative at port 1/1 to the marketing department without moving cables. With a port-based VLAN, you only need to indicate in the Command Line Interface (CLI) that port 1/1 in the sales VLAN now is a member of the marketing VLAN.
