The stack reacts to the timeout by resetting the congestion window back to an empty state. 栈对超时的响应是把拥塞窗口(CW)重设回空状态。
Analyses the present slow-start strategy, proposes a new method of slow-start strategy to resolve the problem that the congestion window grows unsmoothly. 分析了现有的慢启动策略,针对现有策略中拥塞窗口(CW)增长不够平滑的问题,提出了一种新的慢启动方式。
When the congestion window on the sender is growing, it effectively doubles the number of packets in flight during the time it takes to send a packet and receive the acknowledgment back. 当发送方的拥塞窗口(CW)增大时,它会在发送出一个包和收到应答之间的时间内成倍地增加传输中的包的数目。
The result is that compared to the present strategy, when the new method is adapted the congestion window grows more smoothly, the package loss rate decreases, bottle-neck link usage rate increases. 结果表明,和传统策略相比,采用的慢启动策略时,拥塞窗口(CW)值的增长更趋平滑,丢包率明显减小,瓶颈链路的利用率也有所提高。
During the slow-start stage, the congestion window of TCPW is based on exponential growth mode, which will cause the datagram increases too fast and prompt the probability of congestion. 该算法在慢启动阶段仍然采用指数增长模式,从而导致大量突发数据的产生,造成拥塞。