关键词: 软件定义网络, 可编程数据平面, 业务相关, 路径选路

Abstract: The traditional Software-Defined Network（SDN） guarantees the quality of the service by improving the algorithm on the controller, while the data plane only performs normal forwarding and does not participate in the service differentiating. In the meantime, the inaccurate collection of link state information can’t provide effective parameters for routing. To solve this problem, a service-related routing method is proposed. By designing the pipeline flexibly on the programmable data plane, service differentiation can be realized. According to the network state parameters obtained from the programmable data plane, suitable paths are planned for specific services. Experimental result shows that this method can classify services automatically and quickly, and provide suitable and effective transmission paths for different services, thus guaranteeing the quality of service.

Key words: Software Defined Network（SDN）, programmable dataplane, service-related, routing