Although it was possible that OSI or another solution could have solved this problem, the Internet’s protocols achieved this objective. This thesis shows how the networks converged around TCP/IP. For example, a printer needs to send messages to a computer telling it that it has run out of paper or that it is ready to print while a computer needs to send the data it wants to print to the printer. Computers need to send data between themselves so that, for example, email can be exchanged and the Internet can function. When two devices want to successfully communicate, they must agree to follow some rules about the way they will do it.
And supports network packets containing control, error, and informational messages. ICMP is used by such network applications as the ping utility, which can determine the availability of a network host or device. Examples of some error messages returned … Read More