On Dec 8, 2004, at 11:37 AM, David Carmean wrote:

> On Wed, Dec 08, 2004 at 05:31:18PM +0000, Paul Vixie wrote:
>> Certainly F has always allowed zone transfers of the root zone, even
>> when
>> it was called NS.ISC.ORG back before the letter-names came into
>> being. It
>> is ISC's intention to permit AXFR of the root zone from f-root,
>> always.

> What are your thoughts as a root server operator about this as a
> technique
> to reduce the load on the roots?

Remember that all you are going to see is the delegation for the top
level domains.

For example, you would see that the ".com" domain is delegated to
"[a-m].gtld-servers.net". You would not be obtaining the ".com" zone
delegations this way, which seems to be the desire to help "reduce the
load on the roots".

This really wouldn't reduce the load very much because as soon as you
were to query a root server for any ".com" hostname, the delegated
servers for the ".com" zone would be returned to you and then cached
for 172800 seconds, or two days, at which time you would have to
perform the query again against one of the root servers. You would be
cutting down from one query for each TLD every two days by performing a
zone transfer, which you would need to do periodically anyway.

Which one is "better"?

Bill Larson