采用虚拟链路机制的AFDX网络可以对带宽资源进行有效的分配和隔离，极大地增强了网络的实时性。提出了基于虚拟链路的分布式时延抖动测试方法，通过网络演算对时延分布进行理论分析，并与物理测试得到的实际值进行对比，实现了理论与实际的综合评价，增强了分析结果的可信性。

For ADFX network with virtual Link mechanismbandwidth resources can be allocated and isolated effectively so that the realtime performance of AFDX network is greatly improved.In this papera method for testing delayjitter in AFDX network based on virtual links was proposed.The theoretical value was obtained through network calculus theoryand was compared with the actual test value thus comprehensive evaluation was realized and the credibility of analysis results was enhanced.