Hi, On Jun 12, 2026, at 01:48, Luke Curley <[email protected]> wrote: > Unfortunately, individual media frames may not be large enough to fill the > congestion window. CUBIC/Reno/BBR can't increase the window/pacing rate > unless the connection is fully utilized (not application-limited). We get > stuck with an artificially low bitrate estimate that won't reach 6Mb/s unless > bufferbloat causes some queuing (ironic). I-frames cause a tiny burst but > it's never enough.
We did a paper on this in the context of RTP a while ago (https://dl.acm.org/doi/10.1145/2557642.2557649) and Varun was pushing https://datatracker.ietf.org/doc/draft-singh-rmcat-adaptive-fec/ for a while on this. (The idea is that you ramp up your FEC rate to generate more bandwidth demand, and the increased FEC protects you from the losses that may cause when the path can’t deliver that bandwidth.) Thanks, Lars PS: Note the IPR disclosure from back then; I have no idea what happened to that IPR after I left Nokia.
