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Cost, performance & flexibility in OpenFlow: Pick three

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Publication date06/2012
Host publication2012 IEEE International Conference on Communications (ICC)
PublisherIEEE
Pages6601-6605
Number of pages5
ISBN (electronic)9781457720536
ISBN (print)9781457720529
<mark>Original language</mark>English

Abstract

OS virtualization and cloud computing have radically changed the way Internet services are deployed: enterprises share third-party datacenters, deploying existing applications with minimal changes. Recent measurements reveal a lack of traffic isolation capabilities within the datacenter with network performance exhibiting high variability. We advocate addressing this problem by allowing applications to express their own forwarding logic using OpenFlow to achieve application specific optimal performance. We present an OpenFlow implementation within the Mirage application synthesis framework, in the form of library implementations of a modular controller and an extensible OpenFlow-enabled switch, able to expose the underlying network infrastructure to cloud applications. By linking into the application, this provides a safe yet highly extensible framework for programming network control that, although unoptimised, still provides reasonable performance when compared with existing controllers.