Also see thread starting at:
  http://darkwing.uoregon.edu/~llynch/dnsop/msg03465.html


In a discussion between Olaf and Ed, Ed was the last to reply: 
> >
> >>  It might be good to note that
> >>  the time from master to slave is negligible when using NOTIFY and IXFR,
> >>  increasing by reliance on AXFR, and more if you rely on the SOA timing
> >>  parameters for zone refresh.  (Non-standard means of zone transfers have
> >>  other timing concerns.)  When it comes to freshness of data within caches,
> >>  the TTL is the only pertinent parameter, with a shorter setting increasing
> >>  freshness at the cost of fewer cache "hits."
> >
> >I propose to modify the 3rd paragraph of section 2 by appending your
> >text:
> >
> >    Administrators of secured zones will have to keep in mind that data
> >    published on an authoritative primary server will not be
> >    immediately seen by verifying clients; it may take some time for
> >    the data to be transfered to other secondary authoritative
> >    nameservers and clients may be fetching data from caching
> >    non-authoritative servers. In this light ist is good to note that
> >    the time from master to slave is negligible when using NOTIFY and
> >    IXFR, increasing by reliance on AXFR, and more if you rely on the
> >    SOA timing parameters for zone refresh.
> 
> s/ist/it/ - in there somewhere.  Any other comments?
>

Not me, if nobody else replies this will be the text. 
.
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