NOTIFY delay?

[Barry Margolin]

In article <cuuqmf$1nu0$1 at sf1.isc.org>,
 "Mark K. Pettit" <pettit at yahoo-inc.com> wrote:

> Hello.
> 
> In reading RFC1996 ("A Mechanism for Prompt Notification of Zone 
> Changes"), I see the following section, which interests me:
> 
>     4.3. If a master server seeks to avoid causing a large number of
>     simultaneous outbound zone transfers, it may delay for an arbitrary
>     length of time before sending a NOTIFY message to any given slave.
>     It is expected that the time will be chosen at random, so that each
>     slave will begin its transfer at a unique time.  The delay shall not
>     in any case be longer than the SOA REFRESH time.
> 
>     Note:
>        This delay should be a parameter that each primary master name
>        server can specify, perhaps on a per-zone basis.  Random delays
>        of between 30 and 60 seconds would seem adequate if the servers
>        share a LAN and the zones are of moderate size.
> 
> My question is simple:  Does BIND 8.X implement this "delay"?  I can 
> find no option on the named.conf manpage which says anything about it.

I believe BIND 8 and 9 implement the random delay.  I don't think it's 
configurable.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
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