ISCA-China sponsored seminar in DCU
Date: Tuesday 25 August
Time: 11:30 am- 12:15 pm
Venue: S308, DCU
Title of talk: Scalability vs. Flexibility in SDN/OpenFlow data plane
Abstract of talk

OpenFlow/SDN brings many good features, e.g., the flexibility, which are helpful to advance the way for networking. But meanwhile, it also faces many challenges to take over different networking scenarios. For example, the scalability issue is one of the most urgent issues that SDN should pay more attention to. Many literatures have discussed the scalability problems in the controller but few has studied deeply of the scalability in the data plane of SDN without sacrificing the flexibility. Data plane is the fundamental under layer support of the SDN and strongly affects the performance of the controller, as well as the applications above the controller. In this presentation, we will first illustrate several examples to show the problems caused by the non-scalable and non-flexibility data plane of OpenFlow, most of which are still open without good enough solutions. We have worked on these problems for a while and we would like to share our preliminary ideas and results towards a more scalable and flexible SDN data plane.


Bio of speaker

Chengchen Hu received the Ph.D. degree from Tsinghua University, Beijing, China, in 2008. From June 2008 to December 2010, he worked as an Assistant Research Professor with Tsinghua University. He is currently an Associate Professor with the Department of Computer Science and Technology, Xi’an Jiaotong University, Xi’an, China. His main research interests include network measurement monitoring, cloud data center networking, software defined networking. He has published more than 70 papers in high quality venues including INFOCOM, ToN, TComm, JSAC and a list of the publications is available at

He severed in the organization committee and technical program committee of several conferences, e.g.,  INFOCOM 2012-2016, IWQoS 2010, GLOBECOM 2010–2015, ICC 2011–2016, ANCS 2014-2016, Networking 2014-2016, etc. He is recipient of a fellowship from the European Research Consortium for Informatics and Mathematics (ERCIM), Microsoft “Star-Track” Young Faculty Program, New Century Excellent Talents in University awarded by Ministry of Education, China.