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•  http://projects.bardok.net/educational-network-simulator/ to get a grasp of basic networking concepts

























                 1.8 NETWORK PROTOCOLS
              A network protocol is a set of rules that govern how data is exchanged between devices connected to the same
              network. In essence, it enables connected devices to interact with one another despite variations in internal operations,
              structure, or design. Network protocols are responsible for allowing you to interact with individuals all over the world,
              and they play an important part in modern digital communications.
              Network protocols enable devices to connect with each other by preset rules embedded into device software and
              hardware, similar to how speaking the same language facilitates communication between two humans. Without the use
              of network protocols, neither local area networks (LANs) nor wide area networks (WANs) could function as they do today.

                                                                 TCP


                                             VOIP                                    IP


                                           IRC                                         PPP
                                                               Network
                                                              Protocols
                                          Telnet                                      HTTP


                                             POP                                     FTP

                                                                SMTP

              Let us discuss some of the protocols in detail.

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