Port-based VLANs
Port-based VLANs require that specific ports on a network switch be assigned to a VLAN. For example, ports 1 through 8 might be assigned to marketing, ports 9 through 18 might be assigned to sales, and so on. Using this method, a switch determines VLAN membership by taking note of the port used by a particular packet. Figure 1 shows an example of a port-based VLAN.
Figure 1 Port-based VLAN configuration.