一种软件定义网络中交换机动态迁移算法.

Aiming at the load imbalance of multiple controllers in software defined networks, this paper proposed a dynamic switches migration algorithm(DSMA). By modeling the controller-switch mapping as 0-1 programming problem, this algorithm used the immune particle swarm algorithm to achieve the load balance of the controllers and ensured the transmission delay between controllers and switches at the same time. Simulation results show that, compared with the existed typical algorithms such as nearest migration algorithm and lowest utilization migration algorithm, DSMA achieves good load balancing of controllers, reduces the response time of the PACKET_IN messages, improves the system response speed and increases the weighted comprehensive evaluation meanly to 25.3%. [ABSTRACT FROM AUTHOR]