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December 2013 Vol. 4 / No.6

Hybrid cloud: Who's in control when public and private clouds collide?

The exponential growth of hybrid cloud leaves IT shops grappling with crucial questions, including: What is the role of the enterprise network in this shared scenario? Is software-defined networking (SDN) suddenly necessary? And perhaps the trickiest of all -- when enterprise IT teams and service providers share environments, who's responsible for what? Hybrid cloud infrastructure is defined by the U.S. National Institute of Standards and Technology as: "A composition of two or more distinct cloud infrastructures -- private, community or public -- that remain unique entities, but are bound together by standardized or proprietary technology that enables data and application portability (e.g., cloud bursting for load balancing between clouds)." The key here is that "hybrid cloud is more than just a public cloud and a data center. Portability and the commonality of applications and data are the things that really distinguish it," said Mathew Lodge, vice president of cloud services for VMware. On the networking front, "folks are ...

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