RECOMMENDED is a strong suggestion that the implementation may override at the discretion of the implementer. SHOULD is normative.
So the first tells me that I can make up my own mind, the second says that I should give a reason if I don't comply. On Mon, Jun 24, 2013 at 4:18 PM, Yoav Nir <y...@checkpoint.com> wrote: > > On Jun 24, 2013, at 10:52 PM, Peter Saint-Andre <stpe...@stpeter.im> > wrote: > > > On 6/24/13 1:47 PM, Michael Thornburgh wrote: > >> my feeling and belief is that RFC 2119 only gives SHOULD and > >> RECOMMENDED the same normative requirement level, but that it does > >> not override or change the distinct meanings of these words in > >> English. sentences using each of these terms have different meanings > >> in English, even when those sentences appear in RFCs. > > > > I expect that the subtle differences between these words are lost on > > non-native speakers, and even most native speakers, of English. I'd be > > genuinely curious to hear that you think the distinct meanings are. > > > > "It is RECOMMENDED that implementations send the AUTH_LIFETIME > notification at least 4 minutes before the SA is to be deleted, to > facilitate the user entering credentials in time." > > "The implementation SHOULD send the AUTH_LIFETIME notification at least 4 > minutes before the SA is to be deleted, to facilitate the user entering > credentials in time." > > - What are the subtle differences in meaning between these two sentences? > > - Would an implementation written by a native speaker be any different > depending on which of the above sentences was in the RFC? > > Yoav > > > -- Website: http://hallambaker.com/
