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The End-to-End Effects of Internet Path Selection Stefan Savage, Andy Collins, Eric Hoffman
 

Summary: The End-to-End Effects of Internet Path Selection
Stefan Savage, Andy Collins, Eric Hoffman
John Snell, and Thomas Anderson
Department of Computer Science and Engineering
University of Washington, Seattle
Abstract
The path taken by a packet traveling across the Internet depends
on a large number of factors, including routing protocols and per-
network routing policies. The impact of these factors on the end-
to-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 con-
struct the set of potential alternate paths by composing these mea-
surements to form new synthetic paths. We find that in 30-80% of
the cases, there is an alternate path with significantly superior qual-
ity. We argue that the overall result is robust and we explore two

  

Source: Anderson, Tom - Department of Computer Science and Engineering, University of Washington at Seattle
Savage, Stefan - Department of Computer Science and Engineering, University of California at San Diego

 

Collections: Computer Technologies and Information Sciences