Dimensioning (Optical) Networks for Cloud Computing

CSEE SEMINAR SERIES THURSDAY, NOVEMBER 7, 2013 11:00 A.M. – NOON FH 560L “Dimensioning (optical) Networks for Cloud Computing”

Chris Develder, Ph.D. Abstract The evolution towards grid and cloud computing as observed for over a decennium illustrates the crucial role played by (optical) networks in supporting today’s applications. Yet, traditional solutions to the problem of dimensioning optical networks, such as classical routing and wavelength assignment (RWA) algorithms, cannot be directly applied in these new settings. In this talk, we will explain how two fundamental concepts in cloud computing, namely the anycast routing principle and virtualization, complicate (optical) network dimensioning. Next, we will outline our work in solving the resulting challenges. First of all, we will introduce a generic grid/cloud network dimensioning problem that addresses the extra degree of freedom introduced by anycast and also incorporates data center server dimensioning into the problem setting. Here, anycast amounts to the fact that we have some flexibility in deciding on the destination (as well as the route towards it) of the grid/cloud traffic. Second, we will indicate how this flexibility can also be exploited to save resources when designing failure-resilient cloud networks. Finally, we will present our ongoing work that considers resilient virtual network mapping. Bio

Dr. Develder is currently an associate professor with the research group IBCN of the Dept. of Information Technology (INTEC) at Ghent University - iMinds, Ghent, Belgium. He received his M.Sc. degree in computer science engineering and a Ph.D. in electrical engineering from Ghent University (Ghent, Belgium), in July 1999 and December 2003, respectively. From Oct. 1999 to Dec. 2003, Dr. Develder has been working in the Dept. of Information Technology (INTEC), at the same university, as a Researcher for the Research Foundation - Flanders (FWO), in the field of network design and planning. From Jan. 2004 to Aug. 2005, he worked for OPNET Technologies, on transport network design and planning. In Sep. 2005, he re-joined INTEC as a post-doctoral researcher, and as a post-doctoral fellow for FWO since Oct. 2006. In Oct. 2007, Dr. Develder obtained a part-time, (and since Feb. 2010 a fulltime) professorship at Ghent University. He was and is involved in national and European research projects (IST David, IST Phosphorus, IST E-Photon One, BONE, IST Alpha, IST Geysers, etc.) Dr. Develder’s research interests include dimensioning, modeling and optimizing optical (grid/cloud) networks and their control and management, smart grids, information retrieval and extraction, as well as multimedia and home network software and technologies. He regularly serves as reviewer/TPC member for international journals and conferences (IEEE/OSA JLT, IEEE/OSA JOCN, IEEE/ACM Trans. Networking, Computer Networks, IEEE Network, IEEE JSAC; IEEE Globecom, IEEE ICC, IEEE SmartGridComm, ECOC, etc.)