Re: [DNSOP] BULK RR as optional feature

Evan Hunt <each@isc.org> Tue, 28 March 2017 20:51 UTC

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Date: Tue, 28 Mar 2017 20:51:51 +0000
From: Evan Hunt <each@isc.org>
To: John Levine <johnl@taugh.com>
Cc: dnsop@ietf.org
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Subject: Re: [DNSOP] BULK RR as optional feature
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On Tue, Mar 28, 2017 at 06:31:56PM -0000, John Levine wrote:
> What if such a server receives BULK by AXFR?  By IXFR?

I agree these scenarios in particular need to be specified.

One possible solution would be an EDNS signal indicating whether or not the
secondary server implements BULK. If not, the primary would have to expand
the BULK data during transfer, same as BIND expands $GENERATE.  (I proposed
a similar sort of EDNS signaling mechanism in draft-hunt-note-rr-01 a few
years back.)

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