[Oisf-users] Hardware specs for monitoring 100GB

Nelson, Cooper cnelson at ucsd.edu
Thu Aug 1 21:19:16 UTC 2019

Should be fine for ISP traffic.

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.

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%.

If you are having performance issues or packet loss; make sure you have flow bypass for tcp and tls.


From: Oisf-users <oisf-users-bounces at lists.openinfosecfoundation.org> On Behalf Of Daniel Wallmeyer
Sent: Thursday, August 1, 2019 1:14 PM
To: 'oisf-users at lists.openinfosecfoundation.org' <oisf-users at lists.openinfosecfoundation.org>
Subject: [Oisf-users] Hardware specs for monitoring 100GB

Hey fellow mobsters,

Looking to verify that we have spec’d our hardware correctly for monitoring 100GB:

2 x Intel(R) Xeon(R) Gold 6136 CPU
256GB of RAM
Napatech NT100E3-1-PTP

The traffic will be fed via a single network tap.

Will this be enough hardware to deal with 100Gb/s of traffic?
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.

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