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基于轨迹方法的AFDX网络路由配置算法

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Abstract:

针对航空电子全双工交换式以太网(AFDX,AvionicsFullDuplexSwitchedEthernet)的网络关键技术——虚拟链路(VL,VirtualLink)的静态路由算法,提出了一种基于AFDX轨迹方法的VL路由配置算法——TRJ算法,保证配置VL的端端确定性最大延迟满足给定的时延约束.TRJ算法计算每条VL基于轨迹方法得到的初始延时约束比,按照延时约束比从小到大的顺序结合轨迹方法进行VL静态路由配置.在AFDX网络典型配置下,将该路由算法与最小跳路由和均衡路由算法进行比较,结果表明最小跳路由算法用了最少的资源,均衡路由算法平衡了网络流量,但只有该算法保证了所有VL的端端最大延迟满足时延约束,证明该算法的有效性.

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