Abstract: In this paper，we propose an efficient Weighted Opportunity Dynamic Algorithm based on AQM to automatically estimate the optimal weights according to the arrival rate and service rate and Balanced RED Algorithm based on Active Queue Management.The contribution of this paper is to propose an automatic weight tuning and to implement on the prototype system.The experiment results show that the proposed algorithm can improve the performance，acquire a higher balance success ratio.

Key words: Active Queue Management（AQM）, weight, cluster computing, dispatcher

摘要： 在分析了分组到达率和服务率的关系及主动队列管理AQM（Active Queue Management）的Balanced RED算法的基础上，提出了一个计算连接权重的动态分配算法“基于AQM加权时序动态法”（Weighted Opportunity Dynamic Algorithm based on AQM），它具有对终端用户透明、能自动找出最佳服务器来处理请求的特点，从而实现集群计算服务器的负载平衡。另外据此算法设计并实现了一个支持服务器集群的动态负载平衡原型系统，实验结果表明该算法在负载平衡的效能上有明显的提高。

关键词: 主动队列管理, 权重, 集群计算, 调度器