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Overlay (virtual) networks are mainly used to improve Internet reliability and facilitate a rapid deployment of new services. However, in order for overlay services to adapt to dynamic network conditions in a timely manner, efficient diagnosis of performance problems is required. Existing overlay diagnosis approaches assume extensive knowledge about the network and require invasive monitoring sensors...
As the dominant Internet application, peer-to-peer (P2P) file sharing systems account for the major portion of Internet traffic, posing significant burden on ISPs. Many ISPs have attempted to discriminate against P2P traffic, making it important to alleviate such severe conflict. In this paper, we propose a novel architecture called iDTT that aims to use the underutilized off-peak time network capacity...
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