Bandwidth control method based on software-defined networking and oriented to different types of flow

The invention discloses a bandwidth control method based on software-defined networking and oriented to different types of flow. By means of the method, the different types of flow are identified, intelligent bandwidth allocation schemes are provided, and the problems that as for a traditional method, control is complex and response is slow are solved. Under a SDN framework, bandwidth control of the whole network is achieved through a controller, an implementation process is simple and efficient, the bandwidth utilization rate is increased effectively, differential bandwidth allocation is provided intelligently, and the bandwidth control method is applied to bandwidth control oriented to the different types of flow in the SDN.