Re: [DNSOP] the root is not special, everybody please stop obsessing over it

Evan Hunt <each@isc.org> Thu, 14 February 2019 23:56 UTC

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Date: Thu, 14 Feb 2019 23:56:14 +0000
From: Evan Hunt <each@isc.org>
To: Paul Vixie <paul@redbarn.org>
Cc: IETF DNSOP WG <dnsop@ietf.org>
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Subject: Re: [DNSOP] the root is not special, everybody please stop obsessing over it
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On Thu, Feb 14, 2019 at 01:57:14PM -0800, Paul Vixie wrote:
> indeed nothing which treats the root zone as special is worth pursuing, 
> since many other things besides the root zone are also needed for 
> correct operation during network partition events.

This point is well taken, but sometimes the root zone is a useful test
case for innovations that might be more generically useful later. It's
relatively small, relatively static, *XFR accessible, signed but uses
NSEC not NSEC3, etc. It's pleasantly free of annoyances.

So, zone mirroring fell out of 7706, and I suspect it will eventually have
broader applications than just local root cache. I think some of the early
work on aggressive negative caching was root-specific as well.  I wouldn't
assume an idea is bad just because it's currently focused on the root, it
might not always be.

-- 
Evan Hunt -- each@isc.org
Internet Systems Consortium, Inc.