Hi Dave, > On Aug 27, 2019, at 04:03, Dave Taht <dave.taht at gmail.com> wrote: > > 0 connection fell back to non-ECN due to excessive CE-markings I wonder whether macosx would be able to gracefully survive a misclassification into a L4S/NQB queue at a dual queue AQM? What is the threshold here? Best Regards Sebastian