Quality of Service Analysis for CloudMAC

Abstract: Software Defined Networking (SDN) is a relatively recent technology, which has seen a rise in popularity. OpenFlow is a very popular SDN technology, but it does not have any support for Quality of Service options. Open vSwitch is a common software switch which supports OpenFlow. Open vSwitch is used in CloudMAC, another recent technology in wireless networking. Testing of CloudMAC has shown that it has a low connection success rate. This thesis investigated the cause of the connection failures, and a solution using traffic control options in Open vSwitch was developed. Furthermore, additional traffic control options were added to Open vSwitch in order to evaluate the effectiveness of different traffic control algorithms. While the connection success rate in a standard network without cross-traffic was 99%, with cross-traffic, the success rate dropped to 43%. With the introduction of traffic control, the success rate reached up to 99% again.