[Bro] A more parallel Bro

Robin Sommer robin at icir.org
Tue Mar 3 14:47:59 PST 2009

On Mon, Mar 02, 2009 at 11:41 -0600, William L. Jones wrote:

> It is possible to take advantage of muti cpu system with the current
> bro.  I am running 4 cpu test system now that runs 4 bro instances
> on 10GigE interface using a modification of the odd/even filter that
> was suggest on bro wiki in the User Manual: Performance Tuning
> section.

That's indeed a solution too, and in fact the cluster shell supports
such a setup out of the box: if you configure it to install multiple
backends on a single host, it will set things up accordingly (except
for your custom BPF filter which one would still need to configure

I don't have much experience with such a setup though. One thing I'd
like to know is how the capture performance is when running multiple
Bros. Is it a problem to have multiple, high-load packet capturing
processes running at the same time, or is the kernel able to handle
that just fine?


Robin Sommer * Phone +1 (510) 666-2886 * robin at icir.org 
ICSI/LBNL    * Fax   +1 (510) 666-2956 *   www.icir.org

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