Passive inference of path correlation

10 years 3 months ago
Passive inference of path correlation
Overlays have been proposed as a means to improve application performance in many areas, including multimedia streaming and content distribution. Some overlays use parallel transmission to increase aggregate throughput or use backup paths to improve reliability. For such applications, an important consideration is whether the “virtual links” at the overlay level (i.e. paths between overlay nodes) share links in the underlying network. In particular, choosing parallel or backup paths without any information about path correlation can reduce the effectiveness of the overlay. In this paper we show how to use passive measurement of TCP throughput to provide information about path correlation, for use in overlay routing decisions. Our methods have the advantage that they send no probe traffic to collect path information. We present results of experimental evaluation in both controlled testbed (Emulab) and real wide area network (Planetlab). Our results demonstrate that the methods tog...
Lili Wang, Jim Griffioen, Kenneth L. Calvert, Sher
Added 02 Jul 2010
Updated 02 Jul 2010
Type Conference
Year 2004
Authors Lili Wang, Jim Griffioen, Kenneth L. Calvert, Sherlia Shi
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