>>>>> "Eric" == Eric Burger <eburger@xxxxxxxxxxxxxxxxxx> writes: Eric> This highlights an interesting issue as an RFC goes from PS to Eric> IS. I would offer that most SHOULDs in a document will, if Eric> there are real implementations out there, migrate to MUST or Eric> MUST NOT. Eric> On Aug 31, 2011, at 9:57 AM, hector wrote: Hmm. Most of the times I use SHOULD I'd expect them to stay SHOULD. SHOULD doesn't mean "this feature is desired," it means "do this unless you have justification for doing something else." There are a few cases (new algorithms) where you mean SHOULD+ (we'll move to MUST in the future) but often you mean do this unless you're in a constrained environment, or you know you won't need it or something like that. In those cases, SHOULDS tend to stay SHOULDS. _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf