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Traditional methods of conducting measurements to end hosts
require sending unexpected packets to measurement targets. Although
existing techniques can ascertain end host characteristics accurately,
their use in large-scale measurement studies is hindered by the fact
that unexpected traffic can trigger alarms in common intrusion detection
systems, often resulting in complaints from administrators.
We have developed a measurement system that works around this challenge by coordinated particapation in popular peer-to-peer BitTorrent swarms. BitProbes is able to unobtrusively measure bandwidth capacity, latency, and topology information for 500,000 end hosts per week from only eight vantage points, an order of magnitude more than previous measurement systems that map edge networks.
Computer Science & Engineering|
University of Washington
Seattle, WA 98195-2350
(206) 543-1695 voice, (206) 543-2969 FAX
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