On Wed, Nov 02, 2016 at 03:10:18PM +0900,
 fujiw...@jprs.co.jp <fujiw...@jprs.co.jp> wrote 
 a message of 61 lines which said:

> I submitted draft-fujiwara-dnsop-resolver-update-00 that tries to
> improve resolver algorithm.

I see the point but I have two practical reservations:

1) Having two separate caches may be a big change for some
implementations.

2) It will make debugging more difficult. With your two-caches system,
"dig @myresolver NS foobar.example" will retrieve the data in
foobar.example, while the resolver will use, when iterating, the data
from .example, which is not showed and I don't see a standard way to
retrieve it from the "delegation cache".

Apart from that, one detail: section 6 on implementations is too
short. You should expand it at least with the name of the
implementations (you mention two in your OARC talk, so it is not a
secret), and may be with RFC 7942 boilerplate.


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