SDN-based Architecture for Big Data Network

Big data needs underlying network for data transmission in the practice, big data network is an essential content of big data research. In this paper, a big data network framework for the demands in the life cycle of big data is proposed, and the main challenges of big data network using traditional technologies are analyzed. Software defined networking (SDN) separates the control layer from the data layer, and has the advantages of logical concentration, scalability and programmability. According to the characteristics of each subnet in big data network framework, we design the SDN-based architectures of data access network, content transmission network, data center network and backbone network respectively, and elaborate their implementation methods, main functions and collaborative operation.