Snort mailing list archives
snort3 dropping frames at 200 Mbps (single core)
From: ziggypiggy via Snort-users <snort-users () lists snort org>
Date: Wed, 15 Aug 2018 09:39:18 -0400
I installed Snort3 by according to the instructions in the Snort Setup Guide "Snort 3 on Ubuntu 14, 16, 17, 18" (https://www.snort.org/documents/snort-3-on-ubuntu-14-16-17-18). I replay a PCAP file (avg frame size 486B) captured from a live network containing a mix of benign and malicious traffic to Snort3 running on a single CPU and afpacket DAQ: taskset -c 2 /opt/snort/bin/snort --daq afpacket -c /opt/snort/etc/snort/snort.lua -i "enp59s0f0" -R /opt/snort/etc/snort/rules/snort3-community.rules -A none Results: - replaying the traffic at 100 Mbps, snort reports no drops. - replaying at 200 Mbps, snort reports 21% packet drops. I was expecting closer to 1000 Mbps lossless performance. Is this in the range of expected performance for an untuned ( "out-of-the-box") setup? Any suggestions for where I should start looking for misconfiguration or potential tuning parameters? CPU: Intel(R) Xeon(R) Gold 6138 CPU @ 2.00GHz OS: Ubuntu 16.04.5 Thx, _______________________________________________ Snort-users mailing list Snort-users () lists snort org Go to this URL to change user options or unsubscribe: https://lists.snort.org/mailman/listinfo/snort-users To unsubscribe, send an email to: snort-users-leave () lists snort org Please visit http://blog.snort.org to stay current on all the latest Snort news! Please follow these rules: https://snort.org/faq/what-is-the-mailing-list-etiquette
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- snort3 dropping frames at 200 Mbps (single core) ziggypiggy via Snort-users (Aug 15)