In accordance with teaching practice in teaching course and experimental environment, we use technology about virtual local area network, summary some construct projects in local area network, and organize some experiments in Windows 2000 Server LAN.

This paper introduces virtual local area network detailedly,and analyzes their different partition method.

The structure layer of Ethernet and the partitioning of Ethernet layer network based on virtual local area network(VLAN) are discussed with defining network view information model.

Kind of VLAN Model Based on Service;

Analysis and Design of the College Campus Net Using VLAN;

Virtual LAN technology on CISCO;

This paper introduces the structure and features of the distributed SCADA system and the methods for implementing the distributed system of OASYS DNA, and expounds the advanced techniques and concepts of the middle ware, 3-layer structure, and virtual LAN, etc.

Virtual LAN technology is based on frame switch and cell switch technology, the connection between LANs was accomplished with administration software of networks, and new VLAN was composed dynamically.

According to the network simulation requirements,the linkage among physical subnets is established in network simulator(NS2),and the virtual local area network(VLAN)multicast and message transmission prioritizing mechanism is implemented.