Seminar: Dimensioning (Optical) Networks for Cloud Computing

Chris Develder (Ghent University, Belgium)

Tuesday, November 26, 2013, 2:00PM, EV 2.184

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

C. Develder currently is associate professor with the research group IBCN of the Dept. of Information Technology (INTEC) at Ghent University - iMinds, Ghent, Belgium. He is involved in national and European research projects (IST David, IST Phosphorus, IST E-Photon One, BONE, IST Alpha, IST Geysers, etc.). His 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.