OTCP: SDN-Managed congestion control for data centre networks

Jouet, S., Perkins, C. and Pezaros, D. (2016) OTCP: SDN-Managed congestion control for data centre networks. In: Network Operations and Management Symposium, Istanbul, Turkey, 25-29 Apr 2016, pp. 171-179. ISBN 9781509002238 (doi:10.1109/NOMS.2016.7502810)

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Abstract

TCP suffers from incast collapse in data center networks when used with partition aggregate workloads due to inadequate congestion control parameters. This causes poor application performance by under-utilizing the network, and can be one of the limiting factors in low-latency, high-throughput environments. To resolve this, we present Omniscient TCP (OTCP), a Software Defined Networking (SDN) approach to compute environment-specific congestion control parameters based on centrally available network properties. Through experimental evaluation in Mininet, we show up to 12x and 31x reduction in Flow Completion Time (FCT) at the mean and 95th percentile, an 8x FCT improvement on highly congested networks when combined with DCTCP [1], as well as improved fairness and reduced end-to-end latency.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Jouet, Mr Simon and Perkins, Dr Colin and Pezaros, Dr Dimitrios
Authors: Jouet, S., Perkins, C., and Pezaros, D.
College/School:College of Science and Engineering > School of Computing Science
ISBN:9781509002238
Copyright Holders:Copyright © 2016 IEEE
First Published:First published in NOMS 2016 - 2016 IEEE/IFIP Network Operations and Management Symposium 2016: 171-179
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
643481A Situation-aware information infrastructureDimitrios PezarosEngineering & Physical Sciences Research Council (EPSRC)EP/L026015/1COM - COMPUTING SCIENCE
608831IMC2: Instrumentation, Measurement and Control for the CloudDimitrios PezarosEngineering & Physical Sciences Research Council (EPSRC)EP/L005255/1COM - COMPUTING SCIENCE