支持实时业务的队列调度机制与网络资源配置原则研究  

Study of configuration rules of Internet resources and queuing scheduler for supporting real-time service

作　　者：谭兴晔[1] 黄周松[1] 雷振明[1] 

机构地区：[1]北京邮电大学信息工程学院ATM中心,北京100876

出　　处：《重庆邮电学院学报（自然科学版）》2005年第3期332-335,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

摘　　要：分析了广为应用的WFQ调度机制的特点与局限性,提出了克服其局限性的方法;并针对WFQ存在的问题提出了WFQ改进算法,仿真验证了改进算法能显著改善实时业务的报文丢失率与网络传输时延;给出了因特网支持实时业务的网络资源配置的一般原则,以供网络运营者参考。This paper first analyses the characteristics and disadvantage of WFQ scheduler, which is widely used in current Internet. The authors propose a new algorithm,which makes improvement upon current WFQ scheduler and resolves the problems encountered by WFQ scheduler. Simulation shows that this algorithm can efficiently reduce network transmission delay and the loss ratio of real-time service. At last, this paper presents the basic rules for the configuration of Internet resource to support real-time services.

关 键 词：加权公平排队 服务质量 链路分解和交错 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]