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随着网络技术的发展,网络拥塞日益严重,如何解决拥塞,充分、高效地利用网络资源,成为当今急需解决的问题。由于Internet上大多数业务都采用TCP协议,因此TCP的拥塞控制机制对控制网络拥塞具有特别重要的意义。本文分析了TCP的四个交互式拥塞控制算法:慢启动、拥塞避免、快速重传和快速恢复,介绍了TCP基于窗口的拥塞控制策略和目前常用端到端拥塞控制算法,并对它们的性能进行仿真比较。
With the development of network technology, network congestion is becoming more and more serious. How to solve the problem of congestion, full and efficient use of network resources has become an urgent problem to be solved. Because most of the business on the Internet adopts the TCP protocol, TCP’s congestion control mechanism is particularly important for controlling network congestion. This paper analyzes TCP’s four interactive congestion control algorithms: slow start, congestion avoidance, fast retransmission and fast recovery, introduces the TCP-based congestion control strategy and the commonly used end-to-end congestion control algorithm, and their performance Simulation comparison.