Cloud Traffic to Dominate Data Centers: Cisco
Approximately 17 percent of data center traffic will be fueled by users accessing clouds for Web surfing, video streaming and collaboration.Global cloud traffic, the fastest growing component of data center traffic, is expected to grow 4.5-fold—a 35 percent compound annual growth rate (CAGR)—from 1.2 zettabytes of annual traffic in 2012 to 5.3 zettabytes by 2017, according to a study from communications and networking specialist Cisco. Globally, cloud traffic will grow from 46 percent of total data center traffic (98 exabytes per month or 1.2 zettabytes annually) of total data center traffic in 2012 to 69 percent of total data center traffic (443 exabytes per month or 5.3 zettabytes annually) of total data center traffic by 2017. A zettabyte is one billion terabytes. Approximately 17 percent of data center traffic will be fueled by users accessing clouds for Web surfing, video streaming, collaboration and connected devices, all of which contribute to the Internet of everything, commonly referred to as the networked connection of people, data, process and things. In 2012, 39 percent of workloads were processed in the cloud, with 61 percent being handled in a traditional data center. The report also predicted that 2014 would be the first year when the majority of workloads shift to the cloud, with just more than half (51 percent) of all workloads will be processed in the cloud versus 49 percent in the traditional IT space.
By 2017, nearly two-thirds, or 63 percent, of workloads will be processed by cloud data centers, while 37 percent will be processed by traditional data centers.