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Protocol

Protocol is the special set of rules that end points in a telecommunication connection use when they communicate. Protocols exist at several levels in a telecommunication connection.

On the Internet, there are the TCP/IP protocols, consisting of:

  • Transmission Control Protocol(TCP), which uses a set of rules to exchange messages with other Internet points at the information packet level
  • Internet Protocol(IP), which uses a set of rules to send and receive messages at the Internet address level
  • Additional protocols that include the Hyper Text Transfer Protocol (HTTP) and File transfer Protocol (FTP), each with defined sets of rules to use with corresponding programs elsewhere on the Internet.

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