Hi, I see a few drafts that are specifying a yang model that seems to pull in all valid options from IANA registries. Obviously, these RFCs are going to be out of date quickly. Then we either have to let people extrapolate on the obvious, or write up silly Updates: documents. For ipsec there was a discussion of only putting in "some" entries and leave out obsolete entries. But it would require an IANA registry change because it has no obsolete column because some (*cough* IPsec IANA Expert) think that information should be in RFCs and not IANA Registries. For DNS, we thought about quickly writing a draft to obsolete some very ancient stuff more formally so the yang model could perhaps leave it out and avoid implementors putting in stuff that is never going to get used in real life. Why are we doing this to ourselves? Why can't yang modules just point to the proper IANA registries and use the named values from those registries and look for any obsolete and/or deprecated entries. Paul
