Evaluation of error recovery schemes for a high-speed packet switched network: link-by-link versus edge-to-edge schemes

IEEE INFOCOM '88,Seventh Annual Joint Conference of the IEEE Computer and Communcations Societies. Networks: Evolution or Revolution? Pub Date : 1988-03-27 DOI:10.1109/INFCOM.1988.12984

T. Suda, N. Watanabe

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引用次数: 14

Abstract

An investigation is made of various error recovery schemes for a very-high-speed packet switched network. The schemes investigated are: (1) edge-to-edge recovery, whereby retransmission of erred packets only takes place between source and destination nodes, (2) link-by-link recovery, whereby retransmission only takes place between adjacent switching nodes, and (3) link-edge-combined recovery, using both link-by-link and edge-to-edge schemes. The performance measures are the distribution of transmission delay and error probability of packets across a network. To obtain these measures, the authors develop a tandem queuing network model with feedbacks, where each queue represents a protocol layer within a switching node rather than a switching node as a whole. Numerical results show that for a network with very-high-speed/low-error-rate channels, the edge-to-edge scheme gives the smallest packet transmission delay, while keeping the packet error probability sufficiently small. The only drawback of the edge-to-edge scheme is that it causes network saturation at smaller network traffic load than the older schemes.<>

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高速分组交换网络的错误恢复方案的评估:逐链路与边对边方案

研究了超高速分组交换网络中的各种错误恢复方案。所研究的方案有:(1)边到边恢复，即只在源节点和目标节点之间重传错误数据包;(2)逐链路恢复，即只在相邻交换节点之间重传;(3)链路边组合恢复，使用逐链路和边到边方案。性能指标是传输延迟的分布和数据包在网络中的错误概率。为了获得这些度量，作者开发了一个带反馈的串联排队网络模型，其中每个队列代表一个交换节点内的协议层，而不是作为一个整体的交换节点。数值结果表明，对于具有非常高速/低错误率信道的网络，边到边方案在保证包错误率足够小的情况下具有最小的包传输延迟。边缘到边缘方案的唯一缺点是，它会在比旧方案更小的网络流量负载下导致网络饱和。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE INFOCOM '88,Seventh Annual Joint Conference of the IEEE Computer and Communcations Societies. Networks: Evolution or Revolution?

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