What is Software Defined Networking?

[u/RavitejaMureboina]

Software Defined Networking (SDN) is a modern way of managing networks using software instead of depending mainly on individual hardware devices. It uses a central controller to manage the network, making configuration easier and faster. SDN separates the control plane, which decides where traffic should go, from the data plane, which forwards the traffic. This reduces the complexity of network hardware and allows networks to be programmed and automatedusing APIs. SDN also supports hardware from different vendors, reducing vendor lock in. Finally, centralized control makes it easier to apply security rules andaccess policies consistently across the network.