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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">FYI we have already implemented and commercially deployed P4 based RTT measurement in multiple carrier networks, as part of the Canopus Network Analytics platform (<a href="https://www.canopusnet.com/">https://www.canopusnet.com/</a>).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">We take it a step further and correlate it with the application (some of which are more sensitive to RTT than others), as hinted in our paper at the IAB workshop:
<a href="https://www.iab.org/wp-content/IAB-uploads/2021/09/CanopusPositionPaperCameraReady.pdf">
https://www.iab.org/wp-content/IAB-uploads/2021/09/CanopusPositionPaperCameraReady.pdf</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I can also add that we continually measure RTT not just for TCP traffic, but also for UDP streams, particularly gaming, as profiled in our most recent OMG! Report:
<a href="https://www.canopusnet.com/post/omg-report-mar-2022">https://www.canopusnet.com/post/omg-report-mar-2022</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">You may reach out to me directly if you are further interested in this topic.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Vijay <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">AusNOG <ausnog-bounces@ausnog.net> on behalf of Dave Taht <dave.taht@gmail.com><br>
<b>Date: </b>Wednesday, 4 May 2022 at 10:29 am<br>
<b>To: </b>Jonathan Brewer <jon@xn--t-0la.nz><br>
<b>Cc: </b>ausnog@ausnog.net <ausnog@ausnog.net><br>
<b>Subject: </b>Re: [AusNOG] Enterprise Network QoS Traffic Profiling Tools<o:p></o:p></span></p>
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<p class="MsoNormal">the IAB had a workshop on this last september:<br>
<a href="https://www.iab.org/activities/workshops/network-quality/">https://www.iab.org/activities/workshops/network-quality/</a><br>
<br>
Loved Matt Mathis's paper in particular.<br>
<br>
I figure a lot of this is way bleeding edge, but - in p4:<br>
<br>
<a href="https://www.iab.org/wp-content/IAB-uploads/2021/09/Camera_Ready__Fine-Grained_RTT_Monitoring_Inside_the_Network.pdf">https://www.iab.org/wp-content/IAB-uploads/2021/09/Camera_Ready__Fine-Grained_RTT_Monitoring_Inside_the_Network.pdf</a><br>
<br>
Also, caida's jitterbug:<br>
<a href="https://www.caida.org/catalog/papers/2022_jitterbug/jitterbug.pdf">https://www.caida.org/catalog/papers/2022_jitterbug/jitterbug.pdf</a><br>
<br>
their github here: <a href="https://github.com/estcarisimo/jitterbug">https://github.com/estcarisimo/jitterbug</a><br>
<br>
<br>
On Tue, May 3, 2022 at 4:26 PM Jonathan Brewer <jon@tò.nz> wrote:<br>
><br>
> Hey friend!<br>
><br>
> A couple of years ago I wrote a training deck for APNIC on IP Flow Monitoring and in doing so went through everything that was out there in FOSS land. #1 on my list at the end was Elastiflow. It was a complete pig for resources (give it 64GB of RAM for a
small instance) but otherwise it was magic.<br>
><br>
> I've only worked with the legacy OSS version here: <a href="https://github.com/robcowart/elastiflow">
https://github.com/robcowart/elastiflow</a><br>
> They have a new thing here: <a href="https://www.elastiflow.com/">https://www.elastiflow.com/</a><br>
><br>
><br>
> Cheers,<br>
> Jon<br>
><br>
> On Tue, May 3, 2022, at 4:24 PM, Roman Islam wrote:<br>
><br>
> Hello Everyone,<br>
><br>
> Any recommendation for a suitable open source software which can help to assess the current network traffic profile? For example port span, capture packet and analyze the traffic type and percentage. Using wireshark regularly but as a troubleshooting tool
compared to network traffic analyzer.<br>
><br>
> Our QoS classification and marking policy has been outdated. We now need to re-investigate to make it more granular and re-align the marking and queuing strategy.<br>
><br>
> -R<br>
><br>
><br>
> _______________________________________________<br>
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> AusNOG@ausnog.net<br>
> <a href="https://lists.ausnog.net/mailman/listinfo/ausnog">https://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
><br>
><br>
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> AusNOG@ausnog.net<br>
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<br>
<br>
<br>
--<br>
FQ World Domination pending: <a href="https://blog.cerowrt.org/post/state_of_fq_codel/">
https://blog.cerowrt.org/post/state_of_fq_codel/</a><br>
Dave Täht CEO, TekLibre, LLC<br>
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