Flow performance analysis of software defined networking based on cross entropy

For SDN hybrid network topology, this paper builds a relationship model of SDN hybrid network flow and capacity based on cross entropy, and makes quantitative analysis and simulation about packet arrival rate normalized probability transmitted by the OpenFlow switches on the ith link. Seen from the results of the analysis, the probability can be up to 66.17%, and this arrival rate of packets can not be improved only by increasing the total cost of network operation or the average length of packet. The analysis results are of important reference for the packet arrival rate normalized probability to apply in LAN of hybrid SDN network and performance optimization.