On Nov 13, 2013, at 10:49 AM, Ole Troan <otroan@xxxxxxxxxxxxx> wrote: > is there a problem here, or should we just accept that sometimes the > IETF will generate ten sets of publications solving more or less the > same problem? This has been a longstanding issue in the IETF (and its predecessors, I'd have to check some of these dates) - going back to HEMS/SGMP, OSPF/IS-IS, etc. My long-standing personal position is that the IETF is pretty good at _producing and vetting_ designs, but less good at _chosing_ from similar alternatives. I think it's better if, when we can't agree, to let the users decide which works best for them. Yes, yes, I know, this is in some ways painful - resources get wasted on duplicate efforts; some users wind up with investments in standards that dead-end (think Betamax, etc); etc. But at the same time, making a choice can produce lengthy, extensive painful politics and wrangling, too. So there are down-sides both ways. My bottom line: we're not infinitely smart, and have only limited foresight. Some things you can only learn by trying things. Noel