随机流网络生存性评价方法

摘要

To solve the problem of network survivability evaluation inaccuracy due to network elements lowering efficiency to work and isomorphism network survivability evaluation, influence factors of network survivability are analyzed, definition of survivability of stochastic-flow network is given and stochastic-flow network survivability model is found. A simple and effective stochastic-flow network survivability evaluation method is proposed. The method considers topology of network, network element reliability and multi-states.Example shows that the method is effective and it solves the problem of estimating isomorphism network survivability at last.%为解决网络元件的降级工作现象使得网络生存性评价不准确,以及同构网络的生存性评价问题,分析了网络生存性的影响因素,提出了随机流网络生存性的概念,并且建立了随机流网络生存性模型.基于此模型提出一种简单有效的随机流网络生存性定量分析方法,该方法兼顾了网络的拓扑结构,元件的可靠性及元件的多模态性.实验结果表明了该方法的有效性,解决了同构网络的生存性评估问题.