An overview on Software Defined Networks

Traditional structure of computer networks have been mainly based on hierarchical and tree structure, developed based on customer-server communication model. Yet the current data centers with their specific processing and storage models are not mainly adjusted with this model. Therefore, the data centers based on this traditional structure will not enable to span the growing needs of large organizations, developers of network infrastructure and end users. These needs mainly derive from increasing growth of mobile users, virtualization of servers, the services based on cloud computing pattern, change of traffic pattern, the problems related to Parallel Processing and so forth, obliged the network industry to have revision on these traditional structures. Software Defined Networks especially Open Flow protocol are ready to disturb the current status and provide new methods for traffic management on large virtual data centers.

Keywords:

SDN , Open Flow protocol , IT