It is one of the first

software-defined networking (SDN) standards and defined the communication

protocol between SDN controllers and the forwarding plane of networking

devices.

It is managing traffic

between these networks by forwarding data packets to their intended IP

addresses.

It is display website

content through storing, processing and delivering webpages to users.

It is interprets,

processes and executes instructions, most often from the hardware and software

programs running on the device.