Dave CROCKER wrote: > However we continue to hear claims and see design efforts that are based > on the view that changing the infrastructure is easier than changing > end-systems.[1] Wrong. The fact that the major application on the Internet easily and smoothly changed from FTP to HTTP is the counter proof. It is a proven fact that upgrading end systems is trivially easy. Note also that IPv6 and DNSSEC require to *CHANGE* *BOTH* of the infrastructure and the end-systems and that many, if not most, end systems are IPv6 capable. Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf