摘要
目前 Internet上的拥塞控制采用以 TCP为核心的基于窗口技术的端到端 (end- to- end)控制方法 ,具有丢包、响应速度慢等缺陷 ,造成网络资源的极大浪费 .文中提出的通用拥塞控制方法通过对拥塞的早期检测和在相邻节点间交换拥塞控制信息等方法 ,使网络能对拥塞做出快速响应 ,从而有效地克服了端到端拥塞控制方法的缺陷 .实验结果表明 。
With the rapid emergence of new services and the quick change of traffic in Internet, the widely used end to end congestion control scheme becomes insufficient. This paper proposes a new congestion control architecture based on the coordination among the core router, the edge router, and the host. The core router notifies its upstream nodes immediately when it detects incipient congestion. Those nodes then constrain their sending rates to prevent congestion.No per flow state information is maintained in routers. The application itself need not take care of the rate adaptation. The architecture provides a uniform solution accommodating both responsive and unresponsive traffic with trivial overhead. It reduces the packet loss to zero, and leads to higher network resource utilization. Response time to congestion is greatly reduced. The architecture has been implemented in the Linux kernel. Some preliminary experiments show its advantages.
出处
《计算机学报》
EI
CSCD
北大核心
2001年第6期657-660,共4页
Chinese Journal of Computers
基金
国家自然科学基金!(6 978930 1
6 99830 0 8)
国家"八六三"高技术研究发
展计划!(86 3-30 6 -ZT0 3-0 1-2 )
中国科学院百人
