Software-defined networking technology, implemented within an IT infrastructure, can offer improved performance for cloud services, writes Karthikeyan Subramaniam of Adara Networks. "Virtualization by itself is not enough. A hypervisor does not necessarily lend visibility into what services are running inside a virtual machine," Subramaniam writes. "... SDN offers the potential for greater visibility and granularity by separating the control plane from the data plane."

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