The network world is abuzz with the technology revolution provided by Software Defined Networking (SDN), but what is so great about SDN that has got the networking experts in both the Enterprise and Service Provider worlds so excited?
Over the last couple of decades, network technologies have refreshed around a ten-year cycle. The nineties technology shift moved us from leased lines and Time Division Multiplexing (TDM) to the world of ATM, Frame Relay and the emergence of Ethernet as the standard for local area networks.
