> From: t.p. <daedulus@xxxxxxxxxxxxx> > is this something that the IETF should be involved with or is it better > handled by those who are developping LTE etc? I would _like_ to think it's better done by the IETF, since congestion control/response more or less has to be done on an end-end basis, so trying to do it in any particular link technology is not necessarily useful (unless the entire connection path is across that technology). But... > From: Cameron Byrne <cb.list6@xxxxxxxxx> > There is a huge cross layer optimization issue between 3gpp and the > ietf. It is worse than you can imagine, highly akin to how the industry > moved passed the ietf with Nat. Well, I sort of see the analogy with NAT. But rather than rathole on a non-productive discussion of similarities and causes, I think it's more useful/fruitful to examine your point that people are doing all sorts of localized hacks in an attempt to gain competitive advantage. Sometimes this is not a problem, and they are (rightly) responding to places where the IETF isn't meeting needs (one good example is traffic directors in front of large multi-machine web servers). But how much good going it alone will do in this particular case (since congestion control is necessarily end-end) is unclear, although I guess the 'terminate (effectively) the end-end connection near the border of the provider's system, and do a new one to the terminal at the user's device' model works. But there definitely is a risk of layers clashing, both trying to do one thing... Noel