Understanding data center traffic characteristics

Computer Communication Review - Tập 40 Số 1 - Trang 92-99 - 2010
Theophilus Benson1, Ashok Anand1, Aditya Akella1, Ming Zhang2
1University Of Wisconsin, Madison, WI USA
2Microsoft Redmond, WA, USA

Tóm tắt

As data centers become more and more central in Internet communications, both research and operations communities have begun to explore how to better design and manage them. In this paper, we present a preliminary empirical study of end-to-end traffic patterns in data center networks that can inform and help evaluate research and operational approaches. We analyze SNMP logs collected at 19 data centers to examine temporal and spatial variations in link loads and losses. We find that while links in the core are heavily utilized the ones closer to the edge observe a greater degree of loss. We then study packet traces collected at a small number of switches in one data center and find evidence of ON-OFF traffic behavior. Finally, we develop a framework that derives ON-OFF traffic parameters for data center traffic sources that best explain the SNMP data collected for the data center. We show that the framework can be used to evaluate data center traffic engineering approaches. We are also applying the framework to design network-level traffic generators for data centers.

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Computer Communication Review

Tập 40 Số 1

92-99

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