Interoperability for MUST, SHOULD, MAY

["Wijnen, Bert (Bert)" <bwijnen@lucent.com>]

Not sure if we have reached (rough) IESG consensus on this.
I think we do have consensus on:

   We need to see two genetically independent implementations 
   for every MUST and every SHOULD. 

Not sure we have consensus onL:
   Harald added that potentially it even means we need to
   see two genetically independent implementations of
   ervery MAY as well.

Thanks,
Bert