<div dir="auto"></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <strong class="gmail_sendername" dir="auto">Brian Knight via NANOG</strong> <span dir="auto"><<a href="mailto:nanog@nanog.org">nanog@nanog.org</a>></span><br>Date: Tue, Mar 26, 2024, 5:06 PM<br>Subject: Open source Netflow analysis for monitoring AS-to-AS traffic<br>To: <<a href="mailto:nanog@nanog.org">nanog@nanog.org</a>><br></div><br><br><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
<div style="margin:0;padding:0;font-family:monospace">What's presently the most commonly used open source toolset for monitoring AS-to-AS traffic?<br> <br> I want to see with which ASes I am exchanging the most traffic across my transits and IX links. I want to look for opportunities to peer so I can better sell expansion of peering to upper management.</div>
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<div style="margin:0;padding:0;font-family:monospace">Our routers are mostly $VENDOR_C_XR so Netflow support is key.<br> <br> In the past, I've used <a href="https://github.com/manuelkasper/AS-Stats" target="_blank" rel="noreferrer">AS-Stats</a> for this purpose. However, it is particularly CPU and disk IO intensive. Also, it has not been actively maintained since 2017.<br> <br> <a href="https://www.influxdata.com/what-are-netflow-and-sflow/" target="_blank" rel="noreferrer">InfluxDB wants to sell me</a> on Telegraf + InfluxDB + Chronograf + Kapacitor, but I can't find any clear guide on what hardware I would need for that, never mind how to set up the software. It does appear to have an open source option, however.</div>
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<div style="margin:0;padding:0;font-family:monospace">pmacct seems to be good at gathering Netflow, but doesn't seem to analyze data. I don't see any concise howto guides for setting this up for my purpose, however.</div>
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<div style="margin:0;padding:0;font-family:monospace">I'm aware Kentik does this very well, but I have no budget at the moment, my testing window is longer than the 30 day trial, and we are not prepared to share our Netflow data with a third party.</div>
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<div style="margin:0;padding:0;font-family:monospace"><a href="https://www.elastiflow.com/" target="_blank" rel="noreferrer">Elastiflow</a> appears to have been <a href="https://github.com/robcowart/elastiflow?tab=readme-ov-file" target="_blank" rel="noreferrer">open source</a> at one time in the past, but no longer. Since it too appears to be hosted, I have the same objections as I do with Kentik above.</div>
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<div style="margin:0;padding:0;font-family:monospace">On-list and off-list replies are welcome.</div>
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<div style="margin:0;padding:0;font-family:monospace">Thanks,</div>
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<div style="margin:0;padding:0;font-family:monospace">-Brian</div>
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