基于QoS技术的网络构建研究  

Research on Network Construction Based on QoS Technology

作　　者：陶骏 霍清华 张云玲 伍岳 TAO Jun;HUO Qing-hua;ZHANG Yun-ling;WU Yue(Department of Computer and Software,Anhui Institute of Information Technology,Wuhu,Anhui 241000)

机构地区：[1]安徽信息工程学院计算机与软件工程学院

出　　处：《怀化学院学报》2019年第5期70-75,共6页Journal of Huaihua University

基　　金：安徽省教育厅2018高校自然科学重点项目(JK2018A0632;KJ2018A0626);安徽省教育厅2017质量工程项目(2017jxtd145)

摘　　要：介绍了某高校网络的现状和其主要承载的网络业务,分析了在网络拥塞时的缺点,阐述了QoS技术的基本概念,使用了区分服务模型重新部署了此高校的网络协议,并基于PQ+WFQ方法设计了队列调度算法.通过对改造前后网络的丢包率、抖动及时延等参数进行分析表明:1)丢包率下降到4%;2)抖动次数下降到20次;3)访问时延下降到50ms,效果优良,网络改造达到了预期研究效果.This paper introduces the current situation of a university network and its main network services,and analyses the shortcomings of network congestion. This paper expounds the basic concept of QoS technology,redeploys the network protocol of this university using DiffServ model,and designs queue scheduling algorithm based on PQ+WFQ method. The operation parameters of the network before and after modification,such as packet loss rate,jitter and delay,are analyzed in detail to indicate:1)packet loss rate drops to 4%;2)jitter frequency drops to 20;3)delay drops to 50 milliseconds,the effect is excellent,and the network modification achieves the expected research results.

关 键 词：QOS PQ WFQ 时延 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]