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Maintaining a reasonable size for the root zone

  • To: scaling@xxxxxxxxx
  • Subject: Maintaining a reasonable size for the root zone
  • From: Matthew Dempsky <matthew@xxxxxxxxxxx>
  • Date: Mon, 22 Jun 2009 20:01:00 -0700

Today's root zone is small enough to make it practical for caches to
regularly and efficiently fetch compressed and digitally signed copies
out of band (e.g., using HTTP, rsync, or BitTorrent), and caches that
do so benefit from improved DNS resolution efficiency while also
lessening load and dependence on central network infrastructure.  I
would like to suggest that whatever policies ICANN adopts regarding
adding new records to the root zone should maintain this property.

As a moderately concrete suggestion, I think the growth of the root
zone file (in bytes) over time should try to stay within Moore's law.
This seems as reasonable as any estimate about the capacity of caches
to handle a complete local copy of the root zone.

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