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Overlay routing has been successful as an incremental method to improve Internet routing by allowing its own users to select their logical routing. In the meantime, Traffic Engineering (TE) is being used to reduce the whole network cost by adapting physical routing in response to varying traffic patterns. Previous studies have shown that the interaction of the two network components can cause huge network cost increases and oscillations. In this paper, the authors improve the interaction between overlay routing and TE by modifying the objectives of both parties. For the overlay part, they propose TE-awareness which limits the selfishness by some bounds so that the action of overlay does not offensively affect TE's optimization process.
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