22.1 Features

　　VLAN (Virtual Local Area Network) is a logical LAN device is divided into a network segment, emerging data exchange technology enabling virtual work groups. This emerging technology is mainly used in switches and routers, but the mainstream applications of the switch. VLAN is a physical network according to the Purposes, the Working Group, and Applications to the logical division of the local area network is a broadcast domain, and the user's physical location. VLAN in the network users to communicate over a LAN switch. A member of the VLAN to see less than a member of another VLAN.

　　VLAN Topology

　　Figure 1

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　　22.1 Features

　　22.2 The Specific Operation