Building Automation and Networking Devices

From a practical point of view, networking could be made a lot more simplistic if we combined and renamed the TCP, IP and Ethernet protocols as just ‘Protocol X’ – treating it as just one all encompassing but more complex entity. It would be a more tangible concept for newcomers to the technology making a basic level of understanding easier to achieve. However, if we look in a bit more detail its clear that each protocol plays a key role in providing a reliable end to end data delivery mechanism.
Over the years, many competing protocols have battled for dominance. Token ring once offered a commercially viable alternative to Ethernet. IPX / SPX used to be an alternative to TCP/IP. Commercial developments have helped to define a much clearer networking landscape these days. Ethernet is by far the most cost effective LAN* solution and TCP/IP
is now the language of the internet, so many of the alternatives have fallen by the wayside. It is for this reason that we will focus exclusively on TCP/IP and Ethernet in this guide.

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