Performance analysis of real time media application in OpenFlow network

Abstract

The growth of real-time, streaming media application traffic in the Internet presents a number of challenges to the Internet Service Provider (ISP) because most of the real-time constraints and interactive nature of these applications render the use of unreliable User Datagram Protocol (UDP) or ineffective Transmission Control Protocol (TCP). These streaming media application flows are usually high bandwidth and long duration, which means they should utilize network congestion control to avoid congestion collapse and ensure fairness. The Internet Engineering Task Force (IETF) developed the Datagram Congestion Control Protocol (DCCP) to provide congestion control for these types of real-time applications. A major factor behind this effort was the desire to eliminate the duplication of effort and potential for error resulting from each application implementing its own congestion control. The emergence of new concept of centrally controlled Software-Defined Networks (SDN), really take advantage of the information available at the central controller to improve network performance. In this paper, the performance of video streaming was examine, and it is shown that DCCP capable of having a fairly bandwidth tolerance to other network traffic than typical real-time, streaming media congestion control methods. Given fair bandwidth allocation using OpenFlow protocol, DCCP provides equivalent or better video quality.