Re: [DNSOP] New Version Notification for draft-pusateri-dnsop-update-timeout-00.txt

Ted Lemon <mellon@fugue.com> Sat, 25 August 2018 02:53 UTC

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In-Reply-To: <86D465A4-F390-4370-83EC-0E72FBE115BE@isc.org>
From: Ted Lemon <mellon@fugue.com>
Date: Fri, 24 Aug 2018 22:53:12 -0400
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To: Mark Andrews <marka@isc.org>
Cc: Tom Pusateri <pusateri@bangj.com>, dnsop WG <dnsop@ietf.org>
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Subject: Re: [DNSOP] New Version Notification for draft-pusateri-dnsop-update-timeout-00.txt
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When would that happen?

On Fri, Aug 24, 2018 at 10:52 PM Mark Andrews <marka@isc.org>; wrote:

> Registering slaac derived addresses in the DNS.  These are tied to prefix
> lifetimes.
>
>
> --
> Mark Andrews
>
> On 25 Aug 2018, at 05:02, Tom Pusateri <pusateri@bangj.com>; wrote:
>
>
>
> On Aug 24, 2018, at 2:59 PM, Ted Lemon <mellon@fugue.com>; wrote:
>
> On Aug 24, 2018, at 2:43 PM, Tom Pusateri <pusateri@bangj.com>; wrote:
>
> It seems odd to take the position that the authoritative server shouldn’t
> need to clean up stale entries because it assumes the client will do it for
> you. I can’t imagine you taking this position under any other scenario.
>
>
> The issue here is that this is a pretty major change to the DNS.   If we
> really want something this heavy, we should have a good reason for wanting
> it.   That's all.
>
> The idea that some unnamed DHCP server somewhere doesn't do the right
> thing with cleaning up stale entries doesn't seem like a good enough
> reason, particularly given that the DHCID record tags the thing as having
> been added by the DHCP server, and considering that there are several open
> source implementations that do automatically delete records when the lease
> expires.
>
> I think it might make sense to just wait on this.  I agree that it's an
> interesting idea for completeness, but we don't have enough operational
> experience yet to know whether we have a problem worth solving.   With
> respect to the DHCP use case, I'm certain we don't.
>
> The good news is that if we do need this, you've done a design, and we
> also have Paul's design to look at.   So if operational experience a few
> years down the road shows us that we have a gap here, we can move on it
> pretty easily. I just don't see any reason to rush into it.
>
>
> Ok, great. Hopefully others have some use cases they can share. In the
> mean time, back to learning Rust…
>
> Thanks,
> Tom
>
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