主动队列管理算法性能分析通用仿真模型

主动队列管理算法提供因特网中网络拥塞规避和控制机制,是因特网中分组转发设备的重要功能模块。文章提出在网络仿真工具OPNET Modeler下搭建一种通用的网络仿真模型,通过该模型来对不同的主动队列管理算法进行性能评估和分析。通过对RED和LQD算法的仿真,表明了该模型的有效性和通用性。文章也给出了在该模型下实现新的队列管理算法的步骤。该模型为评估不同的主动队列管理算法提供了重要的平台,有助于下一代因特网路由器中缓存队列管理模块的设计。

A Simulation Model for Analysis of Active Queue Management

In the Internet,active queue management algorithm provides congestion avoidance and control mechanisms for Internet traffic as an important module in packet-forwarding devices.To address this issue,this paper presents a simulation model in OPNET,where various active queue management schems can be conveniently implemented and tested for assessing their performance in heterogeneous network environment.The flexibility of the model is verified by implementing RED and LQD algorithms.A set of procedures are proposed for implementing future queue management algorithms in the model.The simulation model will enable us to validate different active queue management algorithms, in order to gain useful insights for developing and deploying active queue management schemes in next-generation networks.