Inferring the Buffering Delay of Remote BitTorrent Peers Under LEDBAT Vs TCP
Now-a-days, due to excessive queuing, Internet delays grow sometimes as large as the propagation delay from moon to earth – for which the bufferbloat term was recently coined. Some points to Active Queue Management (AQM) as its solution, others propose end-to-end congestion control techniques – like BitTorrent that recently replaced TCP with the LEDBAT transport protocol. In this paper, the authors implement a methodology to monitor the upstream queuing delay experienced by remote hosts, both those using LEDBAT, through LEDBAT’s native one-way delay measurements, and those using TCP, through the timestamp option.
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