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Distributed Congestion-Aware Load Balancing in Data Center Networks
Date: 2016/8/25             Browse: 447

Distributed Congestion-Aware Load Balancing in Data Center Networks

Speaker: Hong Xu

Time: Aug 25, 4:30pm - 5:30pm.

Location: Room 410, Teaching Center


Load balancing in modern data center networks is crucial to performance of applications with stringent requirements on both latency and throughput. In this talk, I will present our work on congestion-aware load balancing to address the inefficiency of current solutions. First I will introduce Expeditus, a distributed balancing protocol for general Clos data center networks. Expeditus relies on simple local information collection and a novel two-stage path selection mechanism to make near-optimal path selection decisions. Testbed evaluation on Emulab with Click implementation and large-scale ns-3 simulations demonstrate that Expeditus outperforms CONGA and ECMP. In the second part, I will introduce Luopan which can perform congestion-aware load balancing in any topologies, by utilizing random sampling.


Hong Xu received the B.Eng. degree from the Department of Information Engineering, The Chinese University of Hong Kong, in 2007, and the M.A.Sc. and Ph.D. degrees from the Department of Electrical and Computer Engineering, University of Toronto. He joined the Department of Computer Science, City University of Hong Kong in August 2013, where he is currently an assistant professor. His research interests include data center networking, NFV, SDN, and networked systems. He was the recipient of an Early Career Scheme Grant from the Research Grants Council of the Hong Kong SAR, 2014. He also received the best paper awards from IEEE ICNP 2015 and ACM CoNEXT Student Workshop 2014.


SIST-Seminar 16051