Baatdaat: measurement-based flow scheduling for cloud data centers

Tso, F.P. and Pezaros, D. (2013) Baatdaat: measurement-based flow scheduling for cloud data centers. In: IEEE Symposium on Computers and Communications (ISCC'13), Split, Croatia, 7-10 Jul 2013,

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Software-Defined Networking (SDN) allows for efficient network-wide Traffic Engineering through the logical centralization of the control plane over individual switches that perform packet forwarding independently. Such abstraction is particularly suitable for Data Center (DC) networks that need to react to fluctuating traffic dynamics over short timescales. In this paper, we propose a low-cost, SDN-based system that exposes the temporal network-wide utilization through direct measurement, rather than estimation. We then present the Baatdaat1 flow scheduling algorithm which uses spare DC network capacity to mitigate the performance degradation of heavily utilized links. Results show that Baatdaat achieves close to optimal Traffic Engineering by reducing network-wide maximum link utilization by up to 18% over ECMP, while at the same time improving flow completion time by as much as 41% - 95% for different types of flows.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Tso, Dr Fung Po and Pezaros, Professor Dimitrios
Authors: Tso, F.P., and Pezaros, D.
Subjects:Q Science > QA Mathematics > QA76 Computer software
College/School:College of Science and Engineering > School of Computing Science
Research Group:Embedded Networked and Distributed Systems (ENDS)

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