北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2004, Vol. 27 ›› Issue (3): 43-47.

• 论文 • 上一篇    下一篇

弹性分组环分组排队时间及传输延时的研究

史国炜, 方洪波, 王洪元, 曾烈光   

  1. 清华大学电子工程系, 北京100084
  • 收稿日期:2003-03-02 出版日期:2004-03-28
  • 作者简介: 史国炜(1968—), 男, 博士后. E-mail:shigw@tsinghua.edu.cn
  • 基金资助:
    国家“863计划”项目(2002AA121041)

Transfer Delay and Queueing Time of RPR Network

SHI Guo-wei, FANG Hong-bo, WANG Hong-yuan, ZENG Lie-guang   

  1. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • Received:2003-03-02 Online:2004-03-28

摘要: 建立了弹性分组环(RPR)的业务排队模型,提出分组传输延时的定量分析方法,并对各类业务的平均传输延时进行了仿真分析。分析表明,低优先级业务的排队时间均长于高优先级业务;高优先级业务(A类)在单队列环中的传输延时要高于在双队列环中的传输延时,而低优先级业务(B类、C类)在单队列环中的传输延时要低于在双队列环中的传输延时。

关键词: 弹性分组环, 排队时间, 分组传输延时

Abstract: Atraffic queueing model for resilient packet ring ( RPR) netw orks was built , and a method for quantitatively ana lyzing the acket transfer dela ys in RPR net work was presented as well. Based o n thi s metho d, the av erag e queueing time and t ransfer delay of the di fferent prio ri ty t raff ic w ere obtained. It is co ncluded from the quanti tativ e analysis that the low er prio ri ty traf fic in t ransmi t buffer has long er queueing time than tha t o f higher priority t raf fic. On the o ther hand, the highest priority t raf fic (class-A) in sing le-queue ring i s delayed more time than that in dual-queue ring , in co ntrary , the low er priority t raffic ( class-B and class-C) in sing le-queue ring is delayed less time than that in dual-queue ring.

Key words: resilient packet ring, queueing time, transfer delay

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