2015-05-09 10:35 GMT-07:00 Lyndon Nerenberg <lyn...@orthanc.ca>: > > On May 9, 2015, at 10:30 AM, Devon H. O'Dell <devon.od...@gmail.com> wrote: > >> Or when your client is on a cell phone. Cell networks are the worst. > > Really? Quite often I slave my laptop to my phone's LTE connection, and I > never have problems with PMTU. Both here (across western Canada) and in the > UK.
There are lots of hacks all over the Internet to deal with various brokenness on the carrier<->carrier side of things where one end is a cell network. Haven't seen anything come up super recently, but had to help debug some brokenness as recently as a year and a half ago that turned out to be some cell network with really old hardware that didn't do PMTU correctly, causing TLS connections to drop or die. IIRC this particular case was in France, but I also seem to recall the same issue in northern England and perhaps Ireland.
