Hi all, What is the best way to deal with the RFC status in normative references? Should I only use normative references on "Standard" RFC's although "Proposed Standard" RFC's may already obsolete them and contain better information? Should I give a choice? Example: (Y = Proposed Standard, obsoletes X; X = Standard) "If Y is implemented, use blabla as in Y. Otherwise, blabla must be used as defined in X." In my case, I am currently updating my draft "draft-welzl-ptp-01.txt" which relies on MIB-II information; RFC2233, being a Proposed Standard RFC, now offers a new object that certainly makes sense but will not be available in all routers due to the RFC status. The version above ("if RFC2233 is implemented, ...") seems to be the best choice then, doesn't it? Regards, Michael