Improving the Performance of Route Control Middleboxes in a Competitive Environment

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Executive Summary

Multihomed subscribers are increasingly adopting intelligent route control solutions to optimize the cost and end-to-end performance of the traffic routed among the different links connecting their networks to the Internet. Until recently, IRC practices were not considered adverse, but new studies show that in a competitive environment, they can lead to persistent traffic oscillations, causing significant performance degradation rather than improvements. To cope with this, randomized IRC techniques were proposed. However, the proliferation of IRC products raises concerns, given that randomization becomes less effective as the number of interfering IRC systems increases. In this paper, the authors present a more scalable route control strategy that can better support the foreseeable spread of IRC solutions.

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