From: Ellen K. 

The replication one sounds like what he said.

On Mon, 31 May 2004 10:26:43 +0200, Jan van Hoek (NL)
 wrote in message
:

>>> Do "broadcast storms" have anything to do
>>> with the servers talking to each other to get in sync?
>
>There are several possible causes for peaks in network traffic:
>  - backup via the LAN on regular times (typically once per day)
>  - domain controller replication (by default, this happens more often
>than just once per day). Ditto for DNS and WINS servers
>  - refreshing virus signature files on all servers and workstations
>(typically once per day)
>  - manual sync of all domain controllers, e.g. after inputting a batch
>of new users, changing access restrictions or resetting some passwords.
>This can also happen at fixed times when the person in charge of user
>management is instructed to always do a sync at the end of each working
>day
>  - etc etc
>
>All these can (but should not!) cause the phenomena in question. Take
>your pick.
>
>Geo's hint to use a sniffer can narrow down the wealth of possibilities
>to just a few. But without a knowledgable network guy, this won't work.

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