(The purpose of campus network construction is to provide the speed and efficiency of information transmission, to enable teachers to teach more effectively and conveniently, and students to learn more automatically and actively, thereby improving the modern education and teaching level of the entire school. The campus network is the transmission platform of "digital campus". A reliable, efficient and secure network is the solid foundation for building a digital campus. With the in-depth development of informatization in colleges and universities, the flow of teaching, office and management in schools will increasingly depend on the campus network. Therefore, building an efficient, practical, stable, reliable and secure network platform is the focus of college network construction.)