The company Arbor Networks, in cooperation with University of Michigan, has created a report called “2009 Internet Observatory Report“.
In the report, they conclude that after having studied over 256 exabytes worth of traffic (I’ll explain how much that is, in just a bit…), that half of that traffic comes from just 150 companies. Just two years ago, half of the Internet traffic came from 5,000 – 10,000 companies.
The reason for the change in companies responsible for half the traffic, is because more and more content is being consolidated into cloud-based systems, says Craig Labovits, CEO of Arbor Networks.
In 2008, Cisco said that all traffic on the Internet was less than 7 exabytes per month in 2007 and they predict it will increase to 44 exabytes per month in 2012.
How much is 1 exabyte, then? Well, it’s easy to just throw out a number so let’s do that first. One Exabyte is 1 million terabytes and 1 terabyte is 1024 megabytes.
Exabytes are the “next step” after petabytes and to explain petabytes, mozy.com made this great image to really explain how much a petabyte is. Basically 1 petabyte is equal to 13.3 years of HD-TV video. I guess by now it’s impossible to imagine just how much 1 exabyte really is 🙂
Click on the image to view it in a larger size over at mozy.com