Re: [Snort-users] Multi-process Snort

[Pratik Narang <pratik.cse.bits () gmail com>]

Thanks to Joel, Robert and others for the help.
When we talk of a multi-process Snort, we are talking of multiple
instances of Snort over different cores, right? How is the
Pre-processor based engine and the detection engine then balanced
between the different instances of Snort? Is it like one instance
takes care of 10K rules, the other of 12K rules and something like
that?


On Fri, Aug 17, 2012 at 4:21 AM, Joel Esler <jesler () sourcefire com> wrote:
> On 14 Aug 2012, at 11:28, Marcos Rodriguez wrote:
>
> > On Tue, Aug 14, 2012 at 11:19 AM, Pratik Narang
> > <pratik.cse.bits () gmail com>wrote:
> >
> > > Could the Sourcefire guys or experienced users throw some light on
> > > scaling on Snort at high bandhwidths (order of GBps) by using a
> > > multi-core system (4/8/16 cores) and running Snort as a multi-process?
> > > Maybe someone could direct me to research papers or white papers...
> > Hi Pratik,
> >
> > I would suggest Martin Holste's blog as a starting point:
> >
> > http://ossectools.blogspot.com/2011/07/running-load-balanced-snort-in-pfring.html
> >
> > It's a nice write-up and you can start experimenting quickly.   Hope this
> > helps!
> >
> > marcos
>
>
>
> To be clear, it's multi-process Snort with load balanced traffic.  That
> being said, we're getting over 80 Gig a second with this in our commercial
> devices.
>
> It's the same Snort though.
>
> --
> Joel Esler
> Senior Research Engineer, VRT
> OpenSource Community Manager
> Sourcefire

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