基于链路带宽利用率的路由选择算法

为避免网络拥塞,针对现有路由调整算法没有考虑网络流量均衡分布和用户使用感知的问题,提出一种路由选择算法。在保证网络时延,不影响用户服务质量的前提下,选择带宽利用率最小的路径,最大限度实现负载均衡。为尽可能反映实际情况,实验采用真实的Abilene2网络拓扑,结果表明:该算法能有效缓解网络拥塞,网络可利用率提高超过50%。与现有算法相比,该算法能同时满足带宽利用率和网络时延两方面要求。此外,通过调整参数值可以满足实际网络中不同业务的要求。

Routing algorithm based on link bandwidth utilization rate

In order to avoid network congestion,concerning that the current algorithms have not considered the aspects of network flow distribution and user’s perception,a routing algorithm which can realize maximum load balance was proposed.The algorithm can decrease the maximal bandwidth utilization rate of network with delay guaranteed.The experiment based on real Abilene2 network topology shows that the proposed algorithm can alleviate the network congestion and improve the network utilization rate over 50% effectively.Compared with the existing algorithms,the proposed algorithm can meet two requirements of the bandwidth utilization and network delay.In addition,by adjusting the parameter values it can meet different business requirements in actual networks.