Cisco Visual Networking Index: Forecast and Methodology, 2015–2020 White Paper Executive Summary Annual global IP traffic will surpass the zettabyte (ZB; 1000 exabytes The number of devices connected to IP networks will be three times [EB]) threshold in 2016, and will reach 2.3 ZB by 2020. Global IP traffic as high as the global population in 2020. There will be 3.4 networked will reach 1.1 ZB per year or 88.7 EB (one billion gigabytes [GB]) per devices per capita by 2020, up from 2.2 networked devices per capita in month in 2016. By 2020, global IP traffic will reach 2.3 ZB per year, or 2015. Accelerated in part by the increase in devices and the capabilities 194 EB per month. of those devices, IP traffic per capita will reach 25 GB per capita by 2020, up from 10 GB per capita in 2015. Global IP traffic will increase nearly threefold over the next 5 years, and will have increased nearly a hundredfold from 2005 to 2020. Broadband speeds will nearly double by 2020. By 2020, global fixed Overall, IP traffic will grow at a compound annual growth rate (CAGR) of broadband speeds will reach 47.7 Mbps, up from 24.7 Mbps in 2015. 22 percent from 2015 to 2020. Busy-hour Internet traffic is growing more rapidly than average Internet traffic. Busy-hour (or the busiest 60–minute period in a day) Internet traffic increased 51 percent in 2015, compared with 29–percent growth in average traffic. Busy-hour Internet traffic will increase by a factor of 4.6 between 2015 and 2020, while average Internet traffic will increase twofold. Smartphone traffic will exceed PC traffic by 2020. In 2015, PCs accounted for 53 percent of total IP traffic, but by 2020 PCs will account for only 29 percent of traffic. Smartphones will account for 30 percent of total IP traffic in 2020, up from 8 percent in 2015. PC-originated traffic will grow at a CAGR of 8 percent, while TVs, tablets, smartphones, and machine-to-machine (M2M) modules will have traffic growth rates of 17 percent, 39 percent, 58 percent, and 44 percent, respectively. The number of devices connected to IP networks will be Traffic from wireless and mobile devices will account for two-thirds of total IP traffic by 2020. By 2020, wired devices will account for 34 percent of IP traffic, while Wi-Fi and mobile devices will account for 66 percent of IP traffic. In 2015, wired devices accounted for the majority of IP traffic at 52 percent. Global Internet traffic in 2020 will be equivalent to 95 times the volume 3X of the entire global Internet in 2005. Globally, Internet traffic will reach 21 GB per capita by 2020, up from 7 GB per capita in 2015. as high as the global population in 2020. © 2016 Cisco and/or its affiliates. All rights reserved. 2