【摘要】 本文的主要工作在于 :1)给出了对于最坏情况下延迟 ,路径汇集调度优于每流调度的条件 ;2 )通过实验 ,分析了两种方法在最坏延迟 ,平均延迟 ,延迟抖动 ,公平性等方面的性能差异 ;3)最后 ,提出了用基于路径的汇集实现服务质量的一些原则 .本文的结果表明 ,在一定的条件下 ,基于路径的汇集调度可以实现优于每流调度的最坏情况延迟和延迟抖动 ;在平均性能上 ,基于路径的汇集调度没有明显的优势并且在一定程度上牺牲了公平性 .更多还原

【Abstract】 In this paper, we analyze the MPLS QoS implement based on the comparison between per-flow scheduling and path-base aggregation scheduling. Our mainly contributions in this paper include: 1) Provide the condition that the path-based aggregation scheduling can have better delay performance that per-flow scheduling; 2) Analyze the performance differences in maximum delay, minimum delay, average delay and delay jitter through experiments; 3) Provide some principles about aggregation scheduling. Our results suggest that: under some conditions, path-based aggregation scheduling can get better maximum delay and delay jitter performance. While, it has not obvious advantage in average delay performance and loss some fairness.更多还原