NOTIFY delay?
Mark K. Pettit
pettit at yahoo-inc.com
Wed Feb 16 06:25:23 UTC 2005
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.
Thanks.
--
Mark K. Pettit, DNS Administrator, Yahoo! Inc.
pettit at yahoo-inc.com
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