中文摘要：

轮循类分组调度算法是高速网中首选的调度算法。在介绍几种典型的轮循类分组调度算法的基础上,分析了该类调度算法的时延特性,并选取DRR和SRR分别作为传统型、改进型轮循类算法的代表,仿真研究了该类算法在不同的网络配置中的时延性能。最后,展望了轮循类算法的未来发展。

英文摘要：

Round Robin based packet scheduler is the best choice in high-speed networks. Several typical round robin based packet schedulers were introduced and their delay characteristics were analyzed, then DRR and SRR were chosen to represent respectively traditional and improved Round Robin based schedulers, simulations in different network scenarios were conducted to investigate the delay performance of such schedulers. At last, a prospect about future trend of round robin based schedulers was given out.