Cisco forecasts global data center traffic to grow fourfold and reach a total of 6.6 zettabytes annually by 2016, according to the second annual Cisco Global Cloud Index (2011-2016) issued recently.
The virtualization and cloud trends are forcing profound shifts within data centers, affecting everything from IT services and business models to architectures. While the obvious impact of these changes is the need for performance scalability to meet the increasing demands, they also inherently change how data centers are secured. It is this second impact that is often overlooked.
By 2016, annual global Internet Protocol (IP) traffic is forecast to be 1.3 zettabytes (a zettabyte is equal to a sextillion bytes, or a trillion gigabytes), nearly a fourfold increase from 2011, according to networking specialist Cisco.