Meaning of PROTOCOL in English

An agreed-upon format for transmitting data between two devices. The protocol determines the following: the type of error checking to be used , the data compression method (if any), how the sending device will indicate that it has finished sending a message,and how the receiving device will indicate that it has received a message.

DAX English glossary of key connectivity terms.      Английский глоссарий основных терминов по коммуникациям DAX.