基于SDN-SFC的服务功能负载均衡

Service Function Load Balancing Based on SDN-SFC

随着互联网技术的飞速发展,网络终端设备趋向于小型化、方便化,而随着移动终端的普及,其被使用的频率越来越高,人们对网络带宽的需求与日俱增,同时对网络数据传输时间的要求也愈加苛刻。为满足这一需求,文中提出了基于SDN-SFC的负载均衡机制。首先,其对各个终端所需服务的类型和优先级进行分类;然后,采用启发式算法来规划SFC之间的传输路径,以减少每个SF的负载,从而提高整体网络性能。仿真结果表明,提出的方法可以缩短数据传输的时间,实现负载均衡。

With the rapid development of Internet technology,network terminal devices tend to be smaller and more convenient,and with the popularity of mobile terminals,their frequency of utilization is higher,people’s demand for network bandwidth is increasing sharply,at the same time, people’s requirement for network data transmission time is becoming more and more stringent.To meet this demand,this paper proposed a load balancing mechanism based on SDN-SFC.It considers and categorizes the types and priorities of services required by each terminal.Then,a heuristic algorithm is used to plan the transmission paths between SFCs to reduce the load of each SF and improve the overall network performance. Simulation results show that the proposed method can shorten the time of data transmission and achieve load balancing.