Application of wireless network products in Campus network

With the rapid development of information technology and the advancement of China's national economy informatization, it is necessary to realize the electronic exchange of information and the sharing of information resources in the education system. In the education system networking, the use of wireless LAN products can achieve the complex network connectivity, broadband interconnection network access and mobile access network services and other functions. Wireless network products can be used to replace the traditional telecommunication cable to construct the future Education Network, which has the characteristics of the transmission distance, the use of the difficult environment in the building or the construction, and the support of mobile roaming.

The networking between campus areas is the best choice for campuses that are geographically distributed across multiple campuses, or where wiring is not convenient for campus networking between buildings, using WLAN products. It can connect all the campus's local area network, realize resources sharing, provide high quality teaching, scientific research and comprehensive information service for school teachers and students.

Interconnection network access to the current network of Chinese Education Branch network access to the general application of the DDN line method to achieve, but this way there are obvious drawbacks. First of all, the DDN line cost of posts and telecommunications is higher, each year in the city 64K lines have at least tens of thousands of yuan of overhead. And in some places, DDN lines are more tense, high-speed lines are not easy to achieve. and through satellite networking and optical communication, with high speed, good stability, but the construction investment is very high, not ordinary schools can withstand, so for most of the current area and users is not a viable access method. The wireless access method has the characteristics of flexibility, convenience, stable performance, high speed, and can connect the network center of many schools with the Chinese Education Branch network by using WLAN products. This will provide schools with affordable broadband Internet access to meet the needs of teachers and students urgently need to access the Internet to obtain information in real time, while providing students with the opportunity to distance learning.

Provide mobile network services for students and staff schools provide services such as Internet access, libraries and data centers to students and employees, but people have to travel all day long to use them. If students and employees use laptops equipped with wireless cards, they can use these campus-provided service facilities at any time, anywhere in the school, and can easily establish virtual classrooms and research projects to provide students with instant wireless Internet access.

Flexible and convenient services for temporary teaching activities perhaps one day, a classroom may be used for software training, and another day it will be used for literature lessons. At the same time, computers in the classroom may need to be taught in another classroom for statistical courses. Wireless network products can easily implement wireless interconnection between these frequently moved computers. It also makes it possible to quickly turn a classroom that was intended for other purposes into a temporary test center or a classroom that is used only once a week, eliminating the cost of wiring and the energy expended

The following is a typical configuration diagram of a wireless network application in a campus network: