| Cisco Visual Networking Index: Forecast and Methodology, 2008-2013 |
This forecast is part of the Cisco® Visual Networking Index, an ongoing initiative to track and forecast the impact of visual networking applications. The purpose of this paper is to lay out the details of Cisco's global IP traffic forecast and the methodology behind it.For a more analytical look at the implications of the data presented below, please refer to the companion article to this paper entitled "Hyperconnectivity and the Approaching Zettabyte Era." Consider this, in 1981 there were about 231 hosts on the Internet. In 1992 there were about 10 million, by 2000 there were about 100 million hosts. By 2003 there was about 175 million, and by 2005 there were over 350 million hosts. E-mail was the first killer app on the Internet. In the early days e-mail had no attachments, no HTML tags, no colors. A typical e-mail might have been 1-2KB in size. A study conducted JupiterResearch anticipates that a 38 percent increase in the number of people with online access will mean that, by 2011, 22 percent of the Earth's population will surf the Internet regularly. The report says 1.1 billion people currently enjoy regular access to the Web. For the study, JupiterResearch defined online users as people who regularly access the Internet by dedicated Internet access devices. Those devices do not include cell phones. This is pretty extraordinary considering Cisco is estimating that in 4 short years the global Internet will reach a staggering 667 exabytes (that's 6,667,000,000 GB).Cisco says Internet video is now approximately one-third of all consumer Internet traffic, not including the amount of video exchanged through P2P file sharing. The sum of all forms of video (TV, video on demand, Internet, and P2P) will account for over 91 percent of global consumer traffic by 2013.
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