The current Cisco Visual Networking Index (VNI) forecast projects global IP traffic to nearly triple from 2017 to 2022. The appendix offers a detailed summary. Overall IP traffic is expected to grow to 396 EB per month by 2022, up from 122 EB per month in 2017, a CAGR of 26 percent (Figure 1). This growth represents a slight increase in expectations over last year’s forecast, which projected a CAGR of 24 percent from 2016 to 2021, driven by an increase in the growing share of mobile traffic as a percentage of the total IP traffic. Also, of note in the recent forecast is the growing number of countries whose fixed traffic growth rivals that of their mobile traffic growth. United States is the outlier, with a fixed growth of 26 percent in 2017 and a mobile growth of 23 percent over the same time period. Japan, Korea, Canada, Germany and Sweden, all have fixed growth that is only slightly lower than their mobile growth. The majority of countries still have significantly higher growth rates for mobile than for fixed.
