We have gotten following achievements. (1) Active queue management and source algorithms in end-to-end congestion control.

主要取得了下列研究成果：(1)端到端拥塞控制中的主动队列管理算法和源算法的研究。

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The congestion control algorithm mainly divides into two parts: source algorithm which USES on the end system and the link algorithm which USES on the network equipment.

拥塞控制算法主要分为两部分：在端系统上使用的源算法和在网络设备上使用的链路算法。

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Due to the end-to-end essence of TCP, the source algorithm of congestion control can't acquire enough information of intermediate network to control traffic ideally.

由于TCP端到端的本质，拥塞控制的源算法无法利用网络中的具体信息进行理想地拥塞控制。

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