Sdn-based division layer network system

The present invention relates to a network system, having a software defined network (SDN)-based division layer structure, which can divide a network and hierarchically operate in order to enhance expandability and flexibility in an SDN-based network.

[1]  Stefan Schmid,et al.  Exploiting locality in distributed SDN control , 2013, HotSDN '13.

[2]  Yves Lemieux,et al.  OpenFlow supporting inter-domain virtual machine migration , 2011, 2011 Eighth International Conference on Wireless and Optical Communications Networks.