Edward Lewis <[email protected]> writes: > # 1.6. Facilities > # > # The DELEG record is extensible in such a way that future innovations > # in the domain name system, such as new methods of secure transport, > # message encoding, error reporting, etc, does not depend on a re- > # design of the DNS. > > But the DELEG resource record enables redesigning (portions or all of) > the DNS. I think the point is that DELEG allows the DNS namespace to > continue to be published while there are transitions in the DNS > publication protocol (motivated by improving the state of operations).
Put another way: yes, DELEG records are extensible. Just like the DNS is with new RRTYPEs. But we've proven already (and DELEG is an example) that trying to assume adding a new RRTYPE or DELEG flag may require fundamental changes in processing regardless of how that new flag is encoded. Extensibility != easy deployability. It *can* but it shouldn't be assumed that all future simple on the wire changes of any type won't require major code overhauls to handle it. -- Wes Hardaker USC/ISI _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
