Towards seamless application delivery using software defined exchanges

Content Delivery over the Internet continues to be a challenge as there is no centralized control system [1]. Software Defined Networking has paved the way to provide this control of network traffic. OpenFlow is now being standardized as part of the Open Networking Foundation, and Software Defined Exchange provides a framework to use OpenFlow for multidomain routing. Prototype deployments of Software Defined Exchanges have recently come into existence as a platform for Future Internet architecture to eliminate the need for core routing technology used in today´s Internet. In this paper, we look at how application delivery, in particular, Dynamic Adaptive Streaming over HTTP (DASH) and Nowcasting take advantage of Software Defined Exchange. We compare unsophisticated controllers to more sophisticated ones which we call a “load balancer” and find that implementing a good reactive controller for inter-domain routing can result in better network utilization and better application performance.