弹性分组多环网络的可靠性分析

弹性分组环(RPR)多环网络缺乏可靠性模型及相应分析,使得多环网络的设计参数很难选取,为设计高可靠性网络带来困难。该文提出了RPR多环网络的可靠性模型,利用概率理论分析提出了弹性分组环多环网络的可靠性函数以及平均失效时间函数。结果表明影响多环网络可靠性的主要参数是子环节点数分布,并且利用Lagrange乘数法证明了多环网络在子环节点分布均匀时可靠性达到最优;因此设计节点均匀分布的多环网络可以大幅度提高网络的可靠性,为设计高可靠性多环网络提供了理论依据。

Reliability analysis of resilient packet multi-ring networks

Resilient packet multi-ring networks are difficult to design and analyze without proper mathematical model when the model parameters can not be confirmed.A reliability model was developed for resilient packet multi-ring networks using a reliability function and MTTF(mean time to failure) function based on probability theory.The node distribution in the sub-ring is essential for system reliability.The optimal condition for a multi-ring resilient packet ring(RPR) network developed using Lagrange multipliers shows that the reliability is optimized by a uniform distribution.This principle can be utilized to design highly reliable RPR networks.