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Reliability and availability analysis for large networking system

机译:大型网络系统的可靠性和可用性分析

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摘要

More business applications such as voice, e-commerce, storage and trading are migrated from single purpose communication network to converged IP network, thus the reliability and availability of an IP based system becomes critical. A reliability modeling tool is needed to analyze the reliability and availability of the complex IP networking system. The modeling tool needs to capture complex redundancy behavior, including M-of-N redundancy, imperfect switchover, unplanned hardware and software failures as well as planned software upgrades. Meanwhile, the tool needs to be user friendly for the engineering community. In this paper, we developed a reliability and availability analysis tool for large IP based networking system. The tool uses steady state markov transition diagrams to model the availability of M-of-N redundant components, active-standby and load-sharing redundant schemes, switchover success probability, switchover time, and both unplanned and planned failures. A user-friendly Excel format is also developed to make the complicated model easy to use.
机译:诸如语音,电子商务,存储和交易之类的更多业务应用程序已从单一目的通信网络迁移到融合IP网络,因此基于IP的系统的可靠性和可用性变得至关重要。需要一种可靠性建模工具来分析复杂IP网络系统的可靠性和可用性。建模工具需要捕获复杂的冗余行为,包括多对多冗余,不完美的切换,计划外的硬件和软件故障以及计划内的软件升级。同时,该工具需要对工程界友好。在本文中,我们为基于IP的大型网络系统开发了可靠性和可用性分析工具。该工具使用稳态markov过渡图来建模M个N个冗余组件,活动备用和负载共享冗余方案,切换成功概率,切换时间以及计划外和计划内故障。还开发了一种用户友好的Excel格式,以使复杂的模型易于使用。

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