PeerMetric Project

The goal of the PeerMetric project is to understand and characterize the network performance of broadband hosts in the Internet. Broadband hosts are becoming increasing common and constitute a disproportionate fraction of nodes in popular peer-to-peer systems. The access link for such hosts -- cable modem, DSL, 802.11 -- has characteristics that are quite different from the traditional point-to-point link with FIFO queuing assumed in the literature. The links can be asymmetric, schedule packets in a non-FIFO manner, and employ rate shaping schemes such as token bucket regulation. Our work focuses on both characterizing these issues and investigating their implications for bandwidth estimation, overlay multicast, etc.

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MSR Researchers

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Presentations