Dissecting Bufferbloat: measurement and per-application breakdown of queueing delay

Authors:
Andrea Giuseppe Araldo;Dario Rossi
Affiliations:
Université Paris Sud, Orsay, France;Telecom ParisTech, Paris, France
Venue:
Proceedings of the 2013 workshop on Student workhop
Year:
2013

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Abstract

We propose a passive methodology to estimate the queueing delay incurred by TCP traffic, and additionally leverage DPI classification to breakdown the delay across different applications. Ultimately, we correlate the queueing delay to the performance perceived by the users of that applications, depending on their delay-sensitivity. We implement our methodology in Tstat, and make it available as open source software to the community. We validate and tune the tool, and run a preliminary measurement campaign based on a real ISP traffic trace, showing interesting yet partly counter-intuitive results.