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Re: [DNSOP] New draft on delegation revalidation

Shumon Huque <shuque@gmail.com> Mon, 13 April 2020 20:59 UTC

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From: Shumon Huque <shuque@gmail.com>
Date: Mon, 13 Apr 2020 16:59:03 -0400
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To: Bob Harold <rharolde@umich.edu>
Cc: Tim Wicinski <tjw.ietf@gmail.com>, "dnsop@ietf.org WG" <dnsop@ietf.org>
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Subject: Re: [DNSOP] New draft on delegation revalidation
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On Fri, Apr 10, 2020 at 12:51 PM Bob Harold <rharolde@umich.edu> wrote:

> Having read through the draft, and twice through the emails, I think the
> draft has the right balance in using the parent and child NS RRsets
> properly.
>
> I think the "extra" query for the child NS, sent once per parent TTL, is a
> savings over the older method of sending the NS records as "additional
> data" in every response.
>
>>
>>
Thank you Bob. I just want to qualify your last observation a bit - the
extra query would be once per minimum of parent and child TTL, roughly.

Shumon.

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