Network technologies are used to interconnect all parts of a system and ensure that they interact with each other. These can be connected in two ways: through wired networks, whose hardware architecture has now reached a unified and recognised standard, which we optimise through skilful and careful configuration; or via wireless networks. In this area, we distinguish between Wi-Fi networks (also effective over long distances) and Wi-Fi mobility networks, in which we have great configuration experience and can guarantee very high-performance levels.