Survey of Congestion Control Mechanism with Explicit Feedback
具有显式反馈的拥塞控制系统研究进展

In recent years, as the Intemet evolves to incorporate very high-bandwidth optical links and more large-delay satellite finks, the congestion control mechanism in traditional TCP become inefficient and prone to instability. Research on the congestion control issue in the high bandwidth-delay product networks is very active. A important trend is to improve the congestion control with explicit feedback from routers in the transmit path. The explicit feedback mechanism based on IP networks, including ECN, ECN-like and some typical new congestion control protocols, are studied in this paper. Their strengths and weaknesses are also analyzed. At last, the further research aspects are pointed out.