Because of its specific network structure,software defined network has thecharacteristics of centralized control of obtaining and allocating globalnetwork resources.In order to solve the load balancing problem in softwaredefined network,an improved ant colony optimization load balancing algorithm isproposed based on the original ant colony algorithm.The main idea was asfollows:using the search rules of ant colony algorithm,link load balancingdegree,flow acceptance rate,delay,and packet loss rate were taken as theinfluencing factors for the ants to select the next node.Under multipleconstraints,the optimal path of transmission was obtained.Theoretical analysisand simulation results show that the proposed algorithm has good load balancingability and can improve the network service quality.
