Did you compare with fq_codel? None of us (Van included) advocate CoDel by itself.
Hi Jim,
In our evaluation there's only one flow over the queue (in each direction) -- the videoconference. So, yes.
In the upcoming paper where we try and come up with the best end-to-end schemes for multiuser traffic, we compare against Cubic-over-sfqCoDel (http://www.pollere.net/Txtdocs/sfqcodel.cc).