Re: [DNSOP] New Version Notification for draft-yao-dnsop-root-cache-00.txt

["Paul Hoffman" <[e-mail]>]

On 29 Sep 2015, at 2:20, Shane Kerr wrote:

> Jiankang Yao,
>
> I think a simpler approach that works in general is the "HAMMER"
> approach proposed by Warren Kumari, Roy Arends, and Suzanne Woolf a
> couple of years ago:
>
> https://tools.ietf.org/html/draft-wkumari-dnsop-hammer

A huge +1 to this. The proposal in draft-yao-dnsop-root-cache has many 
stability and operational issues that could cause failures, where as 
"look in your cache and fetch things a bit before they expire" has none, 
even if you don't do it right.

> The approach you propose will have some small advantage if someone
> queries for an entry in the root zone that is not in cache. However
> given the long TTL of root zone entries, such a query will be rare so
> the benefit is quite small.

Yes, exactly.

--Paul Hoffman