BGP _is_ a policy framework, and what you said was "In a sane design, a transient policy failure should produce a warning light or a browser popup; something th

BGP _is_ a policy framework, and what you said was "In a sane design, a transient policy failure should produce a warning light or a browser popup; something that applications can use to sensibly convey what happened, in some form, to users.". That will, for obvious reasons, never be the case with BGP. Because it is far too low a layer. Hence my question.