Summary
Asia-Pacific Network Operations and Management Symposium
2016
Session Number:TS5
Session:
Number:TS5-4
Application-aware Traffic Management for OpenFlow Networks
Seyeon Jeong, Doyoung Lee, Junemuk Choi, Jian Li, James Won-Ki Hong,
pp.-
Publication Date:2016/10/5
Online ISSN:2188-5079
Summary:
Software-Defined Networking (SDN) is an emerging networking paradigm aims to improve network management flexibility and efficiency. OpenFlow is one of the popular SDN de-facto standard, which has been prevalently adopted by both academia and industry for research and development purpose. OpenFlow provides rich programmable interface to network administrator to ease traffic monitoring and control. Because OpenFlow supports L4 network stack, it is feasible to provide application level traffic control by specifying TCP/UDP port number in flow rules. The major deficiency of port based traffic control is that it only provides the ability to control traffic from applications which have well-known TCP/UDP port numbers. In the case of port number change or dynamic (ephemeral) port allocation to an application, it is difficult to accurately control the application traffic. To be a solution, we propose an application-aware traffic management method by integrating Deep Packet Inspection (DPI) function with SDN controller. To show the feasibility, we design and implement Firewall and Bandwidth Manager applications based on the proposed management method. The applications perform on top of ONOS [1] controller, and FTP rate control example is shown to prove the feasibility of the proposed flow management method.