What is software-defined networking (SDN)?

Software Defined Networking (SDN) is revolutionizing the networking industry by separating the control plane from the data plane, allowing for more dynamic and secure networks. Originating from Stanford, SDN enables virtualization, making networks agile and easier to manage. It is now used beyond data centers, in wide area networks (SD-WAN) and for security through microsegmentation. SDN also supports network function virtualization (NFV), replacing specialized hardware with software. As SDN evolves, it is applied to cloud and IoT environments, enhancing network agility and adaptability.

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