It is the world's largest mobile communication network provider, and also the switch brand with the largest market share in China and the third largest in the world. Huawei switches are divided into three categories: data center switches, campus switches, and personal and small and medium-sized enterprise switches, which are more outstanding in the previous two categories, such as the agile campus network of the University of Chinese of Hong Kong, Shenzhen, the computer information network system of TravelSky, and the city government network of Haarlemmermeier in the Netherlands, which can fully meet the flexible networking requirements of large campuses and enterprises. Huawei's S series of small and medium-sized commercial/residential switches also have a lot of room for selection, and have the advantages of high ease of use, low power consumption, and low noise. Huawei switches are expensive overall, but they are slightly cheaper than Cisco, and they are also a reliable choice for switches.