Re-opening discussion about Mapping

Lisa Dusseault lisa.dusseault at
Mon Feb 8 20:33:40 CET 2010

In order to be able to handle the mappings document, should the WG choose to
put it forward, I would like to understand as part of this discussion:
 - implementation intentions  -- who plans to implement mappings and in what
context (e.g user typing? user click on URL?)
 - clarity -- is it clear which characters are suggested to be mapped, e.g.
so that we understand the difference from what characters were required to
be mapped in IDNA2003


On Sun, Feb 7, 2010 at 2:35 PM, Vint Cerf <vint at> wrote:

> Please see the attached, rather longish PDF. It is intended to try to move
> the discussion forward on the matter of the mappings question.
> The WG has previously agreed that:
> 1. there will be no mapping in the registration process. labels in
> registered domain names must be in U-label or A-label form, satisfying all
> the validity criteria of the now-adopted normative IDNA2008 documents.
> 2. The mapping discussion emerging from IDNABIS should not be normative
> Vint
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> Idna-update mailing list
> Idna-update at
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