FAST算法的窗口控制策略研究及其TCP友好性分析

FAST Congest Window Analysis and TCP Friendliness Research

分析了FAST的理论基础、优点和存在问题,并讨论了它的TCP友好性。分析结果表明,FAST算法运用延时信号,克服了传统TCP不稳定和在高速网络环境中利用率低等问题,但也面临难于正确估测baseRTT和参数自适应等新的困难,它的TCP友好性研究还有待相关文献的正式发表和足够的实验数据去证明。

The traditional TCP congestion control performs badly in high speed wide area networks because of its slow response with large congestion windows. And this is the right time to modify TCP congestion control for high speed networks. FAST is a new algorithm modifying TCP congestion control for high speed network.And this paper analyzes the performance of FAST and the influence between FAST flows and traditional TCP flows.