Introduction - If you have any usage issues, please Google them yourself
Two sites set up the data link layer communication are A and B, the simulation environment using TCP protocol and Socket client/server mechanism to build communication between the two sites. Compile, then link the resulting executable program (. Exe file) for the character interface command line program (not a graphical interface program). Just copy the executable file, set datalink.exe, line parameters to start two processes use different commands in both DOS window, respectively simulation Site A and Site B. For example: Start Site A process DOS command: datalink a start site B processes the DOS command: datalink b where site A TCP server runs as the default listens on TCP port 59144 Site B runs in TCP client identity, the default connection 127.0.0.1 TCP port 59144.