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Cisco Visual Networking Index: Exabytes to Zettabytes . . . and, Some Day, Beyond

Today, Cisco announced the latest update to its Visual Networking Index (VNI) Forecast for 2009-2014

And – what a surprise! – IP traffic continues to increase.  And there seemingly is no ceiling.  

The VNI projects IP traffic to increase more than fourfold (4.3 times) from 2009 to 2014, reaching 63.9 exabytes per month.  That is equivalent to 766.8 exabytes per year – almost three-quarters of a zettabyte, by 2014.


And remember – an exabyte equals 1 BILLION gigabytes.    And a zettabyte is the equivalent of 1000 Exabytes. 

Can a yottabyte be far away?   Well, yes, since a yottabyte is 1000 zettabytes, and traffic is not projected to equal even one zettabyte by five years from now . . . But one never knows.

As things are, the nearly 64 exabytes of global IP traffic per month projected for 2014 is equivalent to 16 billion DVDs; 21 trillion MP3s; or 399 quadrillion text messages.  And, by 2014, the sum of all forms of video (TV, VoD, Internet video, and peer-to-peer) will continue to exceed 91 percent of global consumer traffic.

By 2014, projections are that the highest IP traffic-generating regions will be North America (19.0 exabytes per month), Asia Pacific (17.4), Western Europe (16.2) and Japan (4.3).  The fastest-growing IP-traffic regions for the forecast period are expected to be Latin America (51 percent compound annual growth rate), the Middle East and Africa (45 percent), and Central Europe (38 percent).

Haven’t had your fill of exabytes and zettabytes?  For links to a lot more, go to

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