What is software defined networking (SDN)?

Software Defined Networking (SDN) is a network architecture approach that separates the control plane from the data plane in networking equipment. This means that the network intelligence and policy-making are centralized in a software-based SDN controller, rather than being distributed across individual hardware devices. SDN allows for easier network management, programmability, and automation, making it possible to quickly adapt to changing business needs and optimize network resources. Organizations use SDN to improve network efficiency, reduce operational costs, and enable innovation in network services.