SpaceVPX背板交换网络双冗余互连可靠性分析  

Reliability analysis of dual redundant interconnection topology in SpaceVPX backplane switching network

作　　者：吴侃侃[1] 周军[1] 倪涛[1] 李林伟 张小满 汪少林[1] WU Kankan;ZHOU Jun;NI Tao;LI Linwei;ZHANG Xiaoman;WANG Shaolin(Shanghai Institute of Satellite Engineering,Shanghai 201109,China;China Academy of Aerospace Science and Technology Innovation,Beijing 100048,China)

机构地区：[1]上海卫星工程研究所,上海201109 [2]中国航天科技创新研究院,北京100048

出　　处：《现代电子技术》2025年第8期45-50,共6页Modern Electronics Technique

基　　金：民用航天项目(D030302)。

摘　　要：SpaceVPX标准背板控制平面、数据平面双冗余交换网络互连拓扑是实现系统高可靠数据交换的关键。根据SpaceVPX插槽、背板配置规范及可靠性模型分类,建立了一种交换网络可靠性模型,分析了整机双冗余独立备份、交换机互连备份、功能节点交叉备份、功能节点交叉与交换机互连备份、全连接备份五种拓扑形式的系统可靠性概率。不同拓扑形式的可靠性概率仿真分析结果表明,功能节点交叉备份连接方式适用于控制平面和数据平面双冗余系统。Dual redundant switching network interconnection topology for control plane and data plane of SpaceVPX standard backplane is the key to realize highly reliable data exchange in the system.According to SpaceVPX slot and backplane configuration specifications and classification,the reliability model of switching network is established,and the system reliability probability of five different topologies:whole standalone backup,switch interconnection backup,cross-backup of functional nodes,functional nodes cross and switching interconnection backup,and full-connection backup.The reliability probability simulation and analysis of different topologies show that the connection mode of cross-backup of functional nodes is suitable for the control of data plane dual redundancy systems.

关 键 词：SpaceVPX 交换网络可靠性模型 控制平面交换 数据平面交换 冗余备份 网络拓扑结构 可靠性概率 

分 类 号：TN876.1-34[电子电信—信息与通信工程] V446.9[航空宇航科学与技术—飞行器设计]