<div dir="ltr"><div dir="ltr">Hi Grenville,<div><br></div><div>Thanks for the email.</div><div><br></div><div>I have replied inline below:<div></div></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, Mar 23, 2025 at 2:28 AM grenville armitage <<a href="mailto:gja.ietf@gmail.com">gja.ietf@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<div>Hi Mohit,<br>
<br>
Thanks for doing the comparison! <br>
<br>
As for "<i>any other material related to this?</i>" I've had a dig
around, and there is not a lot. Rasool (the FreeBSD fq-pie author)
did write up a university tech report in April 2016, "<i>Dummynet
AQM v0.2 – CoDel, FQ-CoDel, PIE and FQ-PIE for FreeBSD’s
ipfw/dummynet framework</i>" (<a href="https://web.archive.org/web/20241018123533/http://caia.swin.edu.au/reports/160418A/CAIA-TR-160418A.pdf" target="_blank">wayback
machine link</a>). There's also a small mention in an LCN 2017
paper titled <span style="color:rgb(0,0,0);font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">"</span><i><span style="color:rgb(0,0,0);font-variant-ligatures:normal;font-variant-caps:normal;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Characterising
LEDBAT Performance Through Bottlenecks Using PIE, FQ-CoDel and
FQ-PIE Active Queue Management</span></i><span style="color:rgb(0,0,0);font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">"
</span>(<a href="http://doi.ieeecomputersociety.org/10.1109/LCN.2017.22" target="_blank">ieee
link</a>, <a href="http://gja.space4me.com/things/ralsaadi-lcn2017-preprint-aqm_on_ledbat-preprint-4oct17.pdf" target="_blank">author
preprint</a>). Hope these are of some (historical) interest to
your I-D (and the wider bufferbloat mailing list, too).</div></div></blockquote><div><br></div><div>Thanks for sharing these links. I will go through the material.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div> I'm
unaware of any production deployment of FreeBSD's fq-pie.<br></div></div></blockquote><div><br></div><div>Thanks for letting me know. </div><div><br></div><div>I presented the FQ-PIE ID in the recently concluded IETF at tsvwg. I believe there was interest in the group to have a specification for FQ-PIE.</div><div><br></div><div>It would be great if you could share your views on the tsvwg mailing list when you get a chance.</div><div><br></div><div>Thanks and Regards,</div><div>Mohit P. Tahiliani</div></div></div>