Re: [idn] Re: 7 bits forever!

["Eric A. Hall" <ehall@ehsco.com>]

Edmon Chung wrote:
> 
> ----- Original Message -----
> From: "Eric A. Hall" <ehall@ehsco.com>

> > For other situations, such as circumnavigating old servers which only
> > support ACE-ified i18n domain names, letting a resolving/caching
> > server do the convolutions makes some sense, since those boxes can
> > cache the canonical UCS answer and referral data, which will help
> > future queries.
> 
> However, there is advantage for not having the nameservers do any
> ACEing. It should make the phasing out of ACE faster.

What is your reasoning for this?

Also, would you have the client perform all recovery operations, such as
retransmitting the original UTF-8 query once a problematic delegation
server had been gotten around? These will still result in caches being
updated but it will essentially result in each application implementing
its own full-service resolver.

> But we are anticipating that this be a "transitional" phase only.
> Eventually, IDN/EDNS will be common place.

I agree that the end-result will be an EDNS-majority, but I think it will
take so long that it is better designed as a coexistence than transition.
In the end, we want it to be transitional, but for the next 10+ years it
will be coexistence, IMO.

-- 
Eric A. Hall                                        http://www.ehsco.com/
Internet Core Protocols          http://www.oreilly.com/catalog/coreprot/