Most tools designed to estimate the capacity of an Internet path require access on both end hosts of the path, which makes them difficult to deploy and use. In this paper we present a single-sided technique for measuring the capacity without the active cooperation of the destination host, focusing particularly on ADSL links. Compared to current methods used on broadband hosts, our approach generates two orders of magnitude less traffic and is much less intrusive. Our tool, DSLprobe, exploits the typical characteristics of ADSL, namely its bandwidth asymmetry and the relatively low absolute bandwidth, in order to measure both downlink and uplink capacities and to mitigate the impact of crosstraffic. To further improve the accuracy, we study different ways to detect and filter cross-traffic packets and we show how to recognize and overcome limited uplink capacities. We validate our tool both on controlled hosts and on a wide variety of Internet hosts. Finally, we present a case study of two large ADSL providers.
Capacity estimation of ADSL links
CONEXT 2008, 4th ACM International Conference on emerging Networking Experiments and Technologies, December 9, 2008, Madrid, Spain
© ACM, 2008. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in CONEXT 2008, 4th ACM International Conference on emerging Networking Experiments and Technologies, December 9, 2008, Madrid, Spain http://dx.doi.org/10.1145/1544012.1544025
PERMALINK : https://www.eurecom.fr/publication/2605