The End-to-End Effects of Internet Path Selection
by Andy Collins, Eric Hoffman, John Snell, Stefan Savage, Tom Anderson
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| url: | http://pages.cs.wisc.edu/~akella/CS740/F08/740-Papers/S+99.pdf | | abstract: | The path taken by a packet traveling across the Internet depends
on a large number of factors, including routing protocols and pernetwork
routing policies. The impact of these factors on the endto-
end performance experienced by users is poorly understood. In
this paper, we conduct a measurement-based study comparing the
performance seen using the “default” path taken in the Internet with
the potential performance available using some alternate path. Our
study uses five distinct datasets containing measurements of “path
quality”, such as round-trip time, loss rate, and bandwidth, taken
between pairs of geographically diverse Internet hosts. We construct
the set of potential alternate paths by composing these measurements
to form new synthetic paths. We find that in 30-80% of
the cases, there is an alternate path with significantly superior quality.
We argue that the overall result is robust and we explore two
hypotheses for explaining it. | | type: | misc |
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