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Cisco announced the results of the Cisco® Visual Networking Index (VNI) Forecast and Methodology, 2008-2013 that confirms consumer broadband usage and global IP network traffic continues to climb at an overwhelming pace due to new forms and expanded usage of interactive media, and the explosion of video content across multiple devices. The study projects that global IP traffic will increase fivefold by 2013. There are key consumer and service provider implications to the forecast that compares regions around the globe including North America, Western Europe, AsiaPac, Middle East and more.

Global IP traffic is expected to increase fivefold from 2008 to 2013, approaching 56 exabytes per month in 2013, up from approximately 9 exabytes per month in 2008.

By 2013, annual global IP traffic will reach two-thirds of a zettabyte (or 667 exabytes). (A zettabyte is a trillion gigabytes.)

Source: http://newsroom.cisco.com/dlls/2009/prod_060909.html

Consumer and corporate use of the Internet could overload the current capacity and lead to brown-outs in two years unless backbone providers invest billions of dollars in new infrastructure, according to a study released Monday.

A flood of new video and other Web content could overwhelm the Internet by 2010 unless backbone providers invest up to US$137 billion in new capacity, more than double what service providers plan to invest, according to the study, by Nemertes Research Group, an independent analysis firm. In North America alone, backbone investments of $42 billion to $55 billion will be needed in the next three to five years to keep up with demand, Nemertes said.

Source: http://www.macworld.com/news/2007/11/19/internetcapacity/index.php