Overview of Traditional Network Traditional network is totally based on Routers which routes the packet from source to destination by using routing protocols like OSPF,EIGRP etc. Every router is maintaining routing table which holds the information about the neighbour networks; by using that information they will forward the packet from source to destination. Router is intelligent internetworking device which decide which path has to be adopted by using routing protocols. Every router is getting the information about neighbour networks by incremental updates. In simple word router is composed of two plane   Control Plane Data forwarding plane Limitations in Current Network Switches with vendor-specific architecture prevent dynamic configuration based on application-specific requirements. Switches must be configured in accordance with the installed operating system (OS). In a typical network, centralised control is not possible. What is Software Defined Networking in IOT ...