Without question, Open Networking and SDN have altered the landscape of data center networks irrevocably. Less than a decade has elapsed since Facebook open-sourced its hardware designs for its Prineville, Oregon data center and formed the Open Compute Project (OCP). One month previous, the Open Networking Foundation (ONF) had formed to promote the benefits of SDN and the OpenFlow protocol. These two organizations, with more than a little help from companies like Facebook, Google and Microsoft, have presided over a shift that has massively reduced CAPEX and OPEX, improved scalability, automation, and efficiency and has given the power back to companies to determine what is the best fit for their particular need.
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