Touchstones for "Mapping"
Mark Davis
mark at macchiato.com
Wed Mar 25 00:38:16 CET 2009
My reading of the rough consensus at the meeting was to continue with
IDNA2008 (not jump to IDNAv2), but incorporate a mapping phase for
compatibility in the following way:
1. Disallow mapping in
registration<http://tools.ietf.org/html/draft-ietf-idnabis-protocol-11#section-4>
2. Require a mapping in
lookup<http://tools.ietf.org/html/draft-ietf-idnabis-protocol-11#section-5>,
based on the 2003 mappings
3. Strongly encourage implementations to only store either the U-Labels
or A-Labels<http://tools.ietf.org/html/draft-ietf-idnabis-defs-08#section-2.3.2.1>
.
I think this was the best possible outcome, since it will allow for maximal
backwards compatibility, preventing people from having interoperability
problems, while retaining the key advantages of IDNA2008.
Mark
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