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List:       namedroppers
Subject:    Re: RFC1996 and IXFR dependency graph loops
From:       Mark.Andrews () isc ! org
Date:       2002-09-24 9:39:41
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> Hello.
> 
> Section 2.2 of RFC1996 states:
> 
>    2.2. The zone's servers must be organized into a dependency graph
>    such that there is a primary master, and all other servers must use
>    AXFR or IXFR either from the primary master or from some slave which
>    is also a master.  No loops are permitted in the AXFR dependency
>    graph.
> 
> I read this to mean that loops in IXFR dependency graphs are legal, but
> loops in AXFR dependency graphs are not. Does anyone know the reason AXFR
> loops are not allowed, and then the reason why IXFR loops are ok?

	They arn't.

> 
> Thanks,
> Ketil
> 
> 
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--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews@isc.org

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