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连续重传(gobackn)协议和选择重传(selectiverepeat)协议都属于滑动窗口协议范畴。数据链路层的许多协议(如HDLC,PPP)都是在此基础上发展起来的。本文利用Linux系统下的管道概念模拟实际通信中的物理媒质,对连续重传协议和选择重传协议进行了仿真,并将两者的性能进行对比分析。
Both the gobackn protocol and the selectiverepeat protocol belong to the sliding window protocol category. Many agreements at the data link layer (such as HDLC, PPP) have been developed on this basis. In this paper, we use the concept of pipelines in Linux system to simulate the physical media in real communication, simulate the continuous retransmission protocol and selective retransmission protocol, and compare the performance of the two.