The Cisco Global Cloud Index is an ongoing effort to forecast the growth of global data center and cloud-based IP traffic. The forecast includes trends associated with data center virtualization and cloud computing.
Forecast Overview
Global data center traffic:
● Annual global data center IP traffic will reach 7.7 zettabytes by the end of 2017. By 2017, global data center IP traffic will reach 644 exabytes
per month (up from 214 exabytes per month in 2012).
● Global data center IP traffic will nearly triple over the next 5 years. Overall, data center IP traffic
will grow at a compound annual growth rate (CAGR) of 25 percent from 2012 to 2017.
Data center virtualization and cloud computing transition:
● The ratio of workloads to non-virtualized traditional servers will increase from 1.7 in 2012 to 2.3 by 2017.
● The ratio of workloads to non-virtualized cloud servers will increase from 6.5 in 2012 to 16.7 by 2017.
● By 2017, nearly two-thirds of all workloads will be processed in the cloud.
Global cloud traffic:
● Annual global cloud IP traffic will reach 5.3 zettabytes by the end of 2017. By 2017, global cloud IP traffic will reach 443 exabytes per month (up from 98 exabytes per month in 2012).
● Global cloud IP traffic will increase nearly 4.5-fold over the next 5 years. Overall, cloud IP traffic will grow
at a CAGR of 35 percent from 2012 to 2017.
● Global cloud IP traffic will account for more than two-thirds of total data center traffic by 2017.
Source: Global Cloud Index
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