China Education and Research Network (CERNET) is a national academic computer internet invested by the state, managed by the Ministry of Education, and built, managed and operated by universities such as Tsinghua University.

CERNET is managed in four levels, namely, national network center, regional network center and regional master node, provincial education and research network and campus network. The National Network Center is located in Tsinghua University and is responsible for the operation and management of the national backbone network.

The overall goal of functional CERNET construction is to use advanced and practical computer technology and network communication technology to realize computer networking and information resource sharing among campuses, and to connect with the international academic computer network (IN TERNET) to establish a fully functional network management system.

CERNET is an important platform for developing modern distance education in China. In order to meet the requirements of the distance education project in the National Action Plan for Revitalizing Education Facing the 265438+20th Century, CERNET started to build its own high-speed backbone network from 1999. By the end of 2002, CERNET had built 20,000 kilometers of optical fiber resources with the joint investment of the state and local governments.

DWDM/SDH high-speed transmission network covers nearly 200 cities in China, with a total trunk capacity of 40Gbps；; On this basis, CERNET's high-speed backbone network was upgraded to 2.5Gbps, and 155M CERNET's medium and high-speed regional network connected 35 key cities in China.

More than 1000 colleges and universities in China have connected to CERNET, and the campus networks of more than 1000 colleges and universities have connected to CERNET at the rate of 1000 Mbps.

CERNET is the vanguard of Internet research in China, with strong technical strength. CERNET is a computer internet independently designed, built and managed by China technicians.

At the same time of network construction, CERNET also pays attention to strengthening network security. From 65438 to 0999, CERNET built the first network emergency response center CCERT in China and provided services. So far, CCERT team has handled more than 2,000 network security incident reports, which effectively guaranteed the normal network operation order of CERNET and promoted the further improvement of CERNET network management level.