Characterizing Residential Broadband Networks

Internet Measurement Conference 2007

Marcel Dischinger ; Andreas Haeberlen ; Krishna P. Gummadi ; Stefan Saroiu

Others  :  http://conferences.sigcomm.org/imc/2007/papers/imc137.pdf
PID  :  23255

来源: CEUR

【 摘 要 】

A large and rapidly growing proportion of users connect to the Internet via residential broadband networks such as Digital Subscriber Lines (DSL) and cable. Residential networks are often the bottleneck in the last mile of today’s Internet. Their characteristics critically affect Internet applications,including voice-over-IP,online games, and peer-to-peer content sharing/delivery systems. However, to date, few studies have investigated commercial broadband deployments, and rigorous measurement data that characterize these networks at scale are lacking. In this paper, we present the first large-scale measurement study of major cable and DSL providers in North America and Europe. We describe and evaluate the measurement tools we developed for this purpose. Our study characterizes several properties of broadband networks, including link capacities, packet round-trip times and jitter, packet loss rates, queue lengths, and queue drop policies. Our analysis reveals important ways in which residential networks differ from how the Internet is conventionally thought to operate. We also discuss the implications of our findings for manyemerging protocols and systems, including delay-based congestion control (e.g., PCP) and network coordinate systems (e.g., Vivaldi).[First Paragraph]