Re: Operational experience with 3 degrees

[Erik Nordmark <Erik.Nordmark@sun.com>]

Clarifying question:

> - some ignore AAAA queries (causing a delay to fallback).
>   you can see this when you try to resolve AAAA for "ftp.mozilla.org"
>   at 64.12.182.70 (gdns-02-ftp-dom.ns.aol.com)

And those boxes do not ignore A queries for the same name?
The reason I'm asking is because I think there are DNS servers which
silently ignore queries for names that they don't have any information
(instead of sending a referral).
If they treat A and AAAA differently that would be news to me.

> I guess there may be a comprehensive document already, but I myself
> don't know one.

It seems useful to take your list (and other issues folks report)
and put in an I-D as a starting point.

  Erik