Aug 29, 2012

What is OpenFlow?


"OpenFlow is a communications protocol that gives access to the forwarding plane of a network switch or router over the network.[1] In simpler terms, OpenFlow allows the path of network packets through the network of switches to be determined by software running on multiple routers (minimum two of them — primary and secondary — has a role of observers). This separation of the control from the forwarding allows for more sophisticated traffic management than is feasible using access control lists (ACLs) and routing protocols. Its inventors consider OpenFlow an enabler of Software Defined Networking.[2]"
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