<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">@Daniel <div>What type of traffic is that and what rules are you planing on using?</div><div><br></div><div><br></div><div>Thanks</div><div><br></div><div><br><div dir="ltr">On 1 Aug 2019, at 22:19, Nelson, Cooper <<a href="mailto:cnelson@ucsd.edu">cnelson@ucsd.edu</a>> wrote:<br><br></div><blockquote type="cite"><div dir="ltr">
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<p class="MsoNormal"><span style="color:#1F497D">Should be fine for ISP traffic.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We are doing 20Gbit with 48 worker threads on an older AMD Piledriver box and it’s around 10-15% loaded with the ‘ondemand’ CPU governor.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Suricata is primarily I/O bound if you are using the Hyperscan matcher and given you have a more modern bus and caching sub-system than us you should be under 50% CPU @peak. This is my personal sizing recommendation
to keep packet drops under 1%.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">If you are having performance issues or packet loss; make sure you have flow bypass for tcp and tls.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">-Coop<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Oisf-users <<a href="mailto:oisf-users-bounces@lists.openinfosecfoundation.org">oisf-users-bounces@lists.openinfosecfoundation.org</a>>
<b>On Behalf Of </b>Daniel Wallmeyer<br>
<b>Sent:</b> Thursday, August 1, 2019 1:14 PM<br>
<b>To:</b> '<a href="mailto:oisf-users@lists.openinfosecfoundation.org">oisf-users@lists.openinfosecfoundation.org</a>' <<a href="mailto:oisf-users@lists.openinfosecfoundation.org">oisf-users@lists.openinfosecfoundation.org</a>><br>
<b>Subject:</b> [Oisf-users] Hardware specs for monitoring 100GB<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hey fellow mobsters,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Looking to verify that we have spec’d our hardware correctly for monitoring 100GB:<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">2 x Intel(R) Xeon(R) Gold 6136 CPU<o:p></o:p></p>
<p class="MsoNormal">256GB of RAM<o:p></o:p></p>
<p class="MsoNormal">Napatech NT100E3-1-PTP<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">The traffic will be fed via a single network tap.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Will this be enough hardware to deal with 100Gb/s of traffic?<o:p></o:p></p>
<p class="MsoNormal">At the very least it would be great to know if the CPU and RAM is enough, we can work with Napatech to get the right card.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt">Dan</span><o:p></o:p></p>
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