Cisco VNI takes optimistic view on traffic– we pick the odd argument

One of the toughest jobs in this industry is analyzing out the latest Cisco Visual Networking Index. First you have to get your head around all those numbers, which are impossible to visualize, like Exabytes? And then you start to see questions in the logic, and wonder if perhaps Cisco has gone too far off in one direction or another. The release this month has a great start, reminding us that by 2021, more people will be using mobile phones (5.5 billion) than have bank accounts (5.4 billion), or running water (5.3 billion), or landlines (2.9 billion). Oops there’s the first one. There are nothing like 2.9 billion fixed line phones. More like 1.15 billion, at least that’s what we…