东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (10): 1418-1421.DOI: -

• 论著 • 上一篇    下一篇

工业以太网中层次拓扑结构对网络性能的影响

赵海;白宗振;林恺;罗桂兰;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-10-15 发布日期:2013-06-22
  • 通讯作者: Zhao, H.
  • 作者简介:-
  • 基金资助:
    国家科技部火炬计划项目(2002EB010154)

Effect of hierarchical topology on industrial ethernet

Zhao, Hai (1); Bai, Zong-Zhen (1); Lin, Kai (1); Luo, Gui-Lan (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-10-15 Published:2013-06-22
  • Contact: Zhao, H.
  • About author:-
  • Supported by:
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摘要： 为了分析现场总线中工业以太网(Industrial Ethernet)层次拓扑结构的技术合理性,将现场总线复杂的网络参数抽象化,建立了一种层次拓扑网络模型.借助数学方法,从网络时延、传输速率、丢包率、突发情况处理等多种网络性能指标对层次拓扑结构和单总线结构的网络进行比较.论证了层次拓扑结构从本质上仍未解决的不确定性问题,对工业以太网网络性能进行了优化,并对层次拓扑网络和单总线网络进行了全面客观的评价,分析了它们各自的适用场合.

关键词: 工业以太网, 层次拓扑, CSMA/CD, 时延, 不确定性

Abstract: In order to analyze the rationality of hierarchical topology in Industrial Ethernet, the parameters of complicated fieldbus networks are abstracted so as to develop a network model at levels. The hierarchical topology network is compared with single bus network in respect to such performance indices as time delay, transmission speed, packet loss rate and how to deal with emergencies. The hierarchical topology network has not solved essentially the problem of uncertainty, but with the help of it, the performance of Industrial Ethernet has been optimized. The two topological networks in comparison are exactly evaluated, and in what case each of them is applicable is discussed separately.

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