Hi Dan, thanks for the review. Comments below.
On 5/27/15 7:00 AM, Romascanu, Dan (Dan) wrote:
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Please resolve these comments along with any other Last Call comments
you may receive.
Document:
https://art.tools.ietf.org/tools/art/genart/index.cgi/t=965/doc?selected_doc=draft-ietf-xmpp-6122bis
Reviewer: Dan Romascanu
Review Date: 5/27/15
IETF LC End Date: 6/3/15
IESG Telechat date:
Summary:
Ready with one issue which I believe is worth discussing.
Major issues:
I have a concern about backwards compatibility and migration. In the
migration between 6122 and 6122bis deployments it is possible that
previously-valid JIDs might no longer be valid or previously-invalid
JIDs become valid. Because of this the Introduction says that operators
of XMPP services are advised to perform careful testing before migrating
accounts and other data.
In a dialog with Peter Saint-Andre (document author) I asked if there
are any recommendations that could be made to the application designers
and operators respectively to ease the migration?
His answer pointed to section 6 (actually I think that 6.1 applies) in
in draft-ietf-precis-saslprepbis. I believe that a pointer to that
section in a ‘migration / backwards compatibility’ section would be
useful for the application designers. What about the operators, however?
Can more details about what operator should test to ensure compatible
migration of users and applications be provided beyond what is
mentioned in the introduction?
We tried to make Section 6 of draft-ietf-precis-saslprepbis focused on
the needs of operators, not application designers. (I happen to be the
operator of a relatively large instant messaging service that will need
to do some testing and possibly some data munging when we migrate our
account data from Stringprep to PRECIS, so I wrote that text with my
operator hat on.) If the text in draft-ietf-precis-saslprepbis is not
complete enough, then we need to figure that out now because it's on the
IESG telechat tomorrow. I do think that's the right place to discuss the
matter, because draft-ietf-xmpp-6122bis merely uses the
UsernameCaseMapped profile defined in that document.
Peter
--
Peter Saint-Andre
https://andyet.com/
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