Network axis software or network software defined or SD (SDN), an approach in Computer Networks is that network administrators will be able to manage network services through abstraction of higher level. This is through the isolation system to decide on how to direct traffic (page control) of the system underlying that the task of guiding the packets to the destination of choice (page Control) done.

the beginning of the network, software-defined a bit after the release of Java by Sun Microsystems in 1995.

network axis software a architectural, dynamic, management. affordable and adaptable, be sure to follow the suitability for applications with high bandwidth and dynamic today. Protocol open Flo element of the main network architecture software defined. The architecture of such a network is as follows:
- customizable direct
- agile
- centralized management
- configure via programming
- is based on standards open-source and independent of the manufacturer