A method for evaluating the effects of performance degradations on communications network application

IEEE International Conference on Communications, Including Supercomm Technical Sessions Pub Date : 1990-04-16 DOI:10.1109/ICC.1990.117281

A. H. Abdelmonem, G. V. van Ryzin

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引用次数: 4

Abstract

A novel method and model for evaluating the combined effects of performance degradations and hardware/software failures on specific network tasks are presented. This approach to quantifying the performance of complex communications networks and services allows easier identification of the components and performance characteristics that most severely affect applications. The model can be used as an analysis tool to set objectives, evaluate new services, and improve the end-to-end availability/reliability for a given network application. A Markov model of component performance that allows for dependencies between degradations and the onset of failure is developed and used to determine the reliability and availability of individual network tasks. Network performance is then described by the performance of the various tasks which it supports. Closed-form expressions for availability, reliability, and the mean time to recover from impairment conditions are derived. An example is given to illustrate the method.<>

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一种评估通信网络应用中性能下降影响的方法

提出了一种新的方法和模型来评估性能下降和硬件/软件故障对特定网络任务的综合影响。这种量化复杂通信网络和服务性能的方法可以更容易地识别最严重影响应用程序的组件和性能特征。该模型可作为一种分析工具，用于设置目标、评估新服务和改进给定网络应用程序的端到端可用性/可靠性。开发了组件性能的马尔可夫模型，该模型考虑了退化和故障发生之间的依赖关系，并用于确定单个网络任务的可靠性和可用性。然后用它所支持的各种任务的性能来描述网络性能。导出了可用性、可靠性和从损伤条件下恢复的平均时间的封闭表达式。最后给出了一个实例来说明该方法。

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 International Conference on Communications, Including Supercomm Technical Sessions

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