On 09/07/2024 11:06, Kazunori Fujiwara wrote:
Dear DNSOP,

I submitted new draft that proposes to consider "Upper limit value
for DNS". If you are interested, please read and comment it.


I disagree with the rationale for 13 name servers.

The root (and .com) have that because it was what would fit into packets
of a particular size given their naming scheme and that scheme's
efficient compressibility.

If there is to be a recommended limit, it should be specifically for
packet size reasons, and not just "because this is what the root does".

IIRC, Vixie et al wrote a draft on this, but it didn't reach RFC status.

Ah, there it is:

  https://datatracker.ietf.org/doc/html/draft-ietf-dnsop-respsize-15.txt

Ray

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