There were several interesting talks on various aspects of congestion control at IETF 80, spread around various working groups and research groups; the majority of work that I would classify as actual research being done in the IETF and IRTF at the moment seems to concern congestion control in some way or other. I've already written about Multipath TCP and Bufferbloat; here's a potpourri of other TCP problems and proposed solutions. Most of these came out of the meeting of the Internet Congestion Control Research Group (ICCRG) - strictly part of the IRTF rather than the IETF - but the presentation on SPDY came from the IETF Transport Area open meeting.
Continuing my series of articles about noteworthy happenings at last week's IETF meeting, here is a summary of Jim Gettys's presentation on "Bufferbloat" to the Transport Area open meeting, which is in turn a summary of his many articles on the topic. This is significant not because it is new, but because it is a very thorough treatment of an old problem which has gone ignored by much of the IETF community - and probably by others too.
I have spent the last week in Prague for the 80th IETF meeting, and will be writing a few articles on the most interesting of the sessions I attended. Here's the first.