Thanks Michael. I enabled the 'logall' global option and noticed that the 
events were object access events. I modified the Windows audit policy to 
exclude successful object access events and I am now seeing a much much 
less traffic from the Windows agent. 
 
<global>
    ...
    ...
    <logall>yes</logall>
  </global>



On Wednesday, April 16, 2014 11:37:09 AM UTC-4, Michael Starks wrote:
>
> On 2014-04-16 9:07, Joe60 wrote: 
> > Hello, 
> > 
> > I am trying to assess how much bandwidth is consumed between a Windows 
> > agent and the OSSEC server under normal operating conditions. 
> > 
> > I am seeing continuous chatter from a Windows agent to the OSSEC 
> > server on UDP port 1514 every 4 seconds. 
>
> The Windows agent, like all OSSEC agents, will send every log to the 
> manager to be analyzed. If you have a sense for your log volume and 
> average log size, you can get an idea for how much bandwidth might be 
> used. OSSEC does compress the traffic, so depending on how much 
> compressable information is in the log, you might see about 1/10th of 
> the actual log size being transferred. 
>

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