Transparent synchronization based port mutation scheme in SDN network

Existing port hopping technologies are hard to be implemented, as they have much interaction with communication nodes in hopping process. In addition, it is also difficult to achieve strict time synchronization and the synchronization packets of ACK synchronization method are easy to be intercepted. To solve those above problems, a transparent synchronization based port mutation scheme in SDN network is put forward, which takes advantage of SDN network features (logically centralized control, network programmable, control plane and data plane separation) and places the port mutation function in the SDN controller. This proposed scheme, which is independent of source and destination nodes, can achieve transparent synchronization of both communication sides. This transparent synchronization method neither requires strict time synchronization, nor needs to send additional synchronization packets. Theoretical analysis and experimental results show that this scheme can effectively resist network interception, analysis attack and denial of service attack without adding much load on SDN controller.