Re: [idn] Re: 7 bits forever!

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

Edmon Chung wrote:

> The client app probably wont do any proactive recovery, but when the
> user initiates another query, it would try th UTF8 again, and fallback
> only if the request fails again.  In the meantime, the cache server
> will have ready the ACE respond already.  The cache resolver still
> performs its usual job, not the client app.  The client app is only
> responsible for the fallback mechanism.

All of that is true for both models. The difference is that if the cache
handles the non-fatal cases, then the application doesn't have to deal
with minor burps, and instead only has to deal with fatal failures.

> The reason really for this proposal is to make sure that DNSSEC works
> within the architecture.  If the resolver does any conversion, DNSSEC
> would have to be changed. But if the client falls back, the origination
> of the request as well as the authoritative response is not changed
> throughout the resolution path.

This is also true for both models.

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