SDN-Based Integrated Convergent Network Routing Scheduling Mechanism

To solve the problems of communication fluctuation, traffic load balancing and poor robustness of dynamic access equipment in integrated converged network. By combining the technology of software defined network (SDN), the accurate subjective and objective cost models are optimized. The index threshold G1 method is proposed as the subjective weighting method, and the standard deviation method is proposed as the objective weighting method. The multiplication integration is used for weighted combination to give the final link cost. A multi-path selection algorithm of integrated fusion network is proposed, and the optimized cost combination is applied to the multi-path Dijkstra variant algorithm to obtain the transmission link and combination cost. An integrated federated network routing topology and strategy are proposed, in which, different networks can choose multiple paths that meet their own characteristics, and can be forwarded in proportion. The results show that the proposed scheme optimizes differentiated path selection and traffic scheduling, increases link bandwidth utilization, and reduces network transmission delay. © 2022, Editorial Department of Journal of Beijing University of Posts and Telecommunications. All right reserved.