The good old network has been a de facto part of most IT infrastructures since the computer Dark Ages (ie, anytime after the 1980s), and as technology has evolved, so organisations’ dependence on their networks has increased. From distributed networking in the mainframe era to the client server era, Internet era and now Internet of things era, the network has slowly taken over, becoming such a critical cog in the wheel that if it goes down, so does a whole lot else.