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Review of: draft-ietf-iab-draft-iab-dns-applications-02

2011-07-21 05:41:44

 This is a summary of a followup review of the draft, after the one noted in
Ticket #35 of the trac wiki for this draft:

    <http://trac.tools.ietf.org/group/iab/trac/ticket/35>

 The complete version of this second review is at:

   <http://trac.tools.ietf.org/group/iab/trac/ticket/35#comment:2>


 Summary:

      The latest version of the draft contains many substantial changes.
 However it continues to have basic problems with direction, scope, detail,
 writing, and with basic confusion about architecture.

     The draft maintains its claim of being a general considerations
 discussion when, in fact, it continues to focus on fear of inappropriate
 proposals.  It continues to invoke examples of inappropriate proposals
 that lack constituency or even currency.

     In spite of language claiming to distinguish new /uses/ of the DNS
 from /changes/ to the DNS, the draft continues to confuse the two.  The
 problem appears to be a difficulty distinguishing architectural layers.
 This is like saying that TCP changes IP or that HTTP changes TCP.  Hence,
 for example, DDDS is a layer /above/ the DNS.  The only two interesting
 questions about a client layer's use of a provider layer -- such as DDDS's
 use of DNS -- is whether the functional match is acceptable and whether
 it's performance demands cause problems.  When focused on one layer, any
 further discussion of the other likely to confuse things significantly, as
 demonstrated in the draft.

     The paper continues to make broad criticisms that lack foundation and
 sometimes even lack citation.

     Some of the statements and logic sequences were entirely opaque to me.
 I could not decipher what they meant.  In some cases the apparent meaning
 was factually incorrect or confused.

     From all of this, I suspect that the only way to make useful progress
 is to start over, and to begin with a much, much more clear and concrete
 statement of the goal for the draft and then a very diligent effort to
 organize the paper's sequence and carefully document its assertions.

d/
--

  Dave Crocker
  Brandenburg InternetWorking
  bbiw.net
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