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Networked devices often come equipped with multiple network interfaces, and bandwidth aggregation is one of the many possible benefits of using multiple interfaces simultaneously. In this paper, the authors present a transparent solution for proxy-based bandwidth aggregation that is able to overcome the different deployment and link heterogeneity challenges present in real-world networks. Their focus has been on increasing the performance of bandwidth-intensive UDP-based applications, and through evaluation they show that their solution efficiently aggregates bandwidth and increases the in-order throughput. Previously, they introduced a multi-link UDP proxy solution that improves in-order throughput. This paper presents a significant extension and improvement in terms of support for middle-boxes (NAT), congestion control, a client-based resequencer and support for all operating systems.
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