[ncc-services-wg] Proposal: optimized rev-DNS operations

> On Oct 24, 2019, at 2:22 PM, Kurt Kayser <kurt_kayser at gmx.de> wrote:
> 1.    Assumption: There is a ton of negative reverse-DNS replies (no PTR-record/NXDOMAIN) returned from the RIPE NCC rev-DNS-Servers, for all not-yet-delegated address-blocks they are responsible for (also called “lame” delegations ?).
> 2.  Question: How could this be optimized or at least encouraged to be fixed?

Doesn’t negative caching enabled by NSEC3 largely take care of this?  At least as far as keeping most of the queries away from the authoritative in-addr servers?

                                -Bill

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