NOTIFY delay?
Barry Margolin
barmar at alum.mit.edu
Thu Feb 17 01:03:39 UTC 2005
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
*** PLEASE post questions in newsgroups, not directly to me ***
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