Re: [EAI] AppsDir review of draft-ietf-eai-popimap-downgrade-05

fujiwara@jprs.co.jp Wed, 02 May 2012 09:49 UTC

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Date: Wed, 02 May 2012 18:49:09 +0900
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To: Claudio.Allocchio@garr.it
From: fujiwara@jprs.co.jp
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Subject: Re: [EAI] AppsDir review of draft-ietf-eai-popimap-downgrade-05
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I will update the draft after next iterim meeting.

People who attend the iterim meeting should read this comment.
It contains two discussion points.

  1. updating RFC 5322 (or not)
  2. how to rewrite NON-ASCII elements (different from draft-ietf-eai-simpledowngrade)

--
Kazunori Fujiwara, JPRS <fujiwara@jprs.co.jp>

> From: Claudio Allocchio <Claudio.Allocchio@garr.it> (by way ofS Moonesamy <sm+ietf@elandsys.com>)
> Hello all,
> 
> I have been selected as the Applications Area Directorate co-reviewer
> for
> this draft (for background on appsdir, please see
> http://trac.tools.ietf.org/area/app/trac/wiki/ApplicationsAreaDirectorate
> ).
> 
> Please resolve these comments along with any other Last Call comments
> you
> may receive. Please wait for direction from your document shepherd or
> AD
> before posting a new version of the draft.
> 
> Document: draft-ietf-eai-popimap-downgrade-05
> Title: Post-delivery Message Downgrading for Internationalized Email
>        Messages
> Reviewer: Claudio Allocchio
> Review Date: April 30th 2012
> IETF Last Call Date: n/a
> IESG Telechat Date: n/a
> 
> Summary: This document is requires a major decision about updating/non
> updating RFC 5322 before it can go to publication. Once this is done,
> other minor changes are listed below and it can be published. Another
> issue to clarify/fix is its relationship with
> draft-ietf-eai-simpledowngrade-03 specification (and also in that
> document, of course, with respect to this one).
> 
> Major Issues:
> 
> 3. Updating RFC 5322
> 
> this is a big major issue in this specification.
> 
> I do not believe that stating something like "It is anticipated that
> when existing implementations encounter a downgraded field from this
> set, many will tolerate the appearance of a group" is a possible thing
> into a Standards Track specification.  Th "update" to RFC 5322 is a
> big major one, and cons should be carefully evaluated here, too. As
> the "Notes in Draf" itself states, there is an alternate, much safer
> mechamism which can be used, and convey the same information to the
> user. This isse must be clarified before this specification can be
> publisehd, and a decision taken.
> 
> Minor Issues:
> 
> there is not cross-reference at all with
> 
> draft-ietf-eai-simpledowngrade-03!
> 
> many implementers could ge confused about the releationship between
> these specifications. In the Summary this should be explicitly
> described and clearly stated.
> 
> Security Considerations
> 
> this section describes quite well the possible scenarios which this
> specification introduces (and can also be a good example for
> re-writing
> the same secrion in draft-ietf-eai-simpledowngrade-03); I'd just
> suggest a further review by the Security area folks, too. Just in
> case...
> 
>  Nits:
> 
> 1.1 Problem statement
> 
> I'd suggest removing "Discussions leading to this specification
> concluded that " and just start with "There are four...'
> 
> 5.1.1 until 5.1.9
> 
> in the titles you use the defintions without the <...> surrounding
> them.
> e.g.
> 
>   5.1.5 GROUP Downgrading.
> 
> I'd suggest changing them all using the < and > ... e.g.
> 
>   5.1.5 <GROUP> Downgrading.
> 
> etc.
> 
> IANA Considerartions:
> 
> ... to be fixed with IANA before publication!
> 
> All over the document (and expecially in the A.1 example):
> 
> this document uses a different convetion than
> draft-ietf-eai-simpledowngrade-03 for non ASCII elements in
> addresses/fields. Please unify the used convetion with the other draft
> (whichever of the 2 convetion is better) before publication.
> 
> Here you write "NON-ASCII-something..." there you just use UPPERCASE.
> 
> ------------------------------------------------------------------------------
> Claudio Allocchio G A R R Claudio.Allocchio@garr.it
>                         Senior Technical Officer
> tel: +39 040 3758523 Italian Academic and G=Claudio; S=Allocchio;
> fax: +39 040 3758565 Research Network P=garr; A=garr; C=it;
> 
>            PGP Key: http://www.cert.garr.it/PGP/keys.php3#ca
> 
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