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 actualÂ research being done in the IETF and IRTF at the moment seems to concern congestion control in some way or other. Â I've already written about Multipath TCP and Bufferbloat; here's a potpourri of other TCP problems and proposed solutions. Â Most of these came out of the meeting of theÂ 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. Â Here's the first.