统计平衡状态下的RED建模和仿真  

Modeling and Simulations of RED Under Statistical Equilibrium

作　　者：罗超[1] 陈宗海[1] 薛福珍[1] 

机构地区：[1]中国科学技术大学自动化系,安徽合肥230027

出　　处：《小型微型计算机系统》2004年第11期2032-2035,共4页Journal of Chinese Computer Systems

摘　　要：RED作为取代 TD的 Internet路由器队列管理策略 ,虽然已经得到了广泛的认同 ,但到目前为止其参数设置主要还是依赖于使用者的经验 ,这严重影响了它的大范围实现和部署 .通过均值分析方法对 RED在统计平衡时的动态特性进行了建模 ,并得出了在多个 TCP流竞争一条瓶颈链路的情况下 ,平均队长和 RED参数之间的解析关系 .仿真结果表明 ,该模型可以提供准确和有效的 RED参数设置方法 .Though RED has been widely approved of replacing TD as the queue management policy on the Internet, by now the configurations of its parameters depend mainly on users' experience, which has badly limited its broad implementations and deployment. In this paper average value analysis is used to model the statistical equilibrium state RED performance, which results in the analytic relation between the EWMA queue length and RED parameters under the circumstances of multiple TCP flows competing for a bottleneck link. Simulation results show that this model can provide precise and effective method for the configurations of RED parameters.

关 键 词：RED TCP流 建模 参数设置 队列管理 仿真结果 部署 统计 竞争 瓶颈 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TP316.81[自动化与计算机技术—计算机科学与技术]