Design of a load-balancing middlebox based on SDN for data centers

Renlong Tu, Xin Wang, Jin Zhao, Yue Yang, Lei Shi, Tilman Wolf

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

25 Citations (Scopus)

Abstract

Modern cloud-based applications are becoming more communication-intensive, posing a challenge for data centers to supply sufficient bandwidth. Current data centers are not optimized for such cloud-based software services. In practice, due to the variability of traffic load, data centers may suffer from lower throughput, as well as higher latency, dramatically reducing quality of service (QoS). This paper addresses this challenging problem by introducing a programmable middlebox that can distribute traffic more evenly. The middlebox is based on a Clos network design and uses Software Defined Networking (SDN) to enhance bandwidth utilization while guaranteeing QoS. The SDN controller of the middlebox collects information from switches and servers to learn the traffic distribution and server loads and to perform load balancing accordingly. When implemented in a data center, the middlebox can greatly improve bandwidth utilization and reduce latency up to 50%. Since the middlebox does not rely on any specific feature of the data center, it can readily be deployed in current data centers.

Original languageEnglish
Title of host publication2015 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages480-485
Number of pages6
ISBN (Electronic)9781467371315
DOIs
Publication statusPublished - 04 Aug 2015
EventIEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2015 - Hong Kong, Hong Kong
Duration: 26 Apr 201501 May 2015

Publication series

NameProceedings - IEEE INFOCOM
Volume2015-August
ISSN (Print)0743-166X

Conference

ConferenceIEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2015
Country/TerritoryHong Kong
CityHong Kong
Period26/04/201501/05/2015

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