理想信道的数据链路层协议,包括接收端程序，理想信道程序和发送端程序-Ideal channel data link layer protocols, including receiving end of the program, the ideal channel program and the sending end program

计算机网络第5版上数据链路层的5个协议的源码,很好-Computer network data link layer of the five agreements on the 5th edition of the source code, very good