Campus network system is divided in

Campus network system is divided into core layer, convergence layer and access layer. The core layer function is mainly to achieve the optimal transmission between the backbone networks, backbone layer design task is usually the focus of redundancy, reliability and high-speed transmission. Due to the school there is a lot of voice and video transmission, consider that the convergence layer has good support for QoS and can provide large bandwidth. The access layer device is the most straightforward device of the end user, and it should have plug-and-play features and easy-to-maintain features.