> > > > This may be right for the WFA/Microsoft OUI, but not necessary anything > > else? > > > > Right, I only considered the most common cases since I did not find a > generic way to compare two vendor elements. Any suggestion? Right, not really. I'm not even sure why this is necessary anyway though, do we really think vendors will expect to be able to put vendor IEs inside the subelements and override the ones outside? Is there even any point for the WFA ones? It seems WMM really ought to be the same for all anyway, for example. johannes