John, > Either that or figure out how to make it easy enough to deploy new > RRTYPEs that people are willing to do so. > > The type number is 16 bits, after all. We're not in any danger of running out. We have been told on numerous occasions that one of the primary reasons for continued use of TXT is because middleboxes, etc., do not allow new RR types (something deprecation of the SPF RR would seem to only encourage). The number of bits in the type field would not seem to be particularly relevant to this. Regards, -drc