<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 13, 2023 at 3:02 AM Sebastian Moeller via Starlink <<a href="mailto:starlink@lists.bufferbloat.net">starlink@lists.bufferbloat.net</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">Hi Dan,<br>
<br>
<br>
> On Jan 9, 2023, at 20:56, dan via Rpm <<a href="mailto:rpm@lists.bufferbloat.net" target="_blank">rpm@lists.bufferbloat.net</a>> wrote:<br>
><br>
> You don't need to generate the traffic on a link to measure how<br>
> much traffic a link can handle.<br>
<br>
[SM] OK, I will bite, how do you measure achievable throughput without actually generating it? Packet-pair techniques are notoriously imprecise and have funny failure modes.<br></blockquote><div><br></div><div>I am also looking forward to the full answer to this question. While one can infer when a link is saturated by mapping network topology onto latency sampling, it can have on the order of 30% error, given that there are multiple causes of increased latency beyond proximal congestion.</div><div><br></div><div>A question I commonly ask network engineers or academics is "How can I accurately distinguish a constraint in supply from a reduction in demand?"</div><div><br></div></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>--</div><div>Jeremy Austin</div><div>Sr. Product Manager</div><div>Preseem | Aterlo Networks</div><div><a href="http://preseem.com" target="_blank">preseem.com</a></div><div><br></div><div>Book a Call: <a href="https://app.hubspot.com/meetings/jeremy548" target="_blank">https://app.hubspot.com/meetings/jeremy548</a></div><div>Phone: 1-833-733-7336 x718</div><div>Email: <a href="mailto:jeremy@preseem.com" target="_blank">jeremy@preseem.com</a></div><div><br></div><div><span style="color:rgb(23,43,77);font-family:-apple-system,system-ui,"Segoe UI",Roboto,"Noto Sans",Ubuntu,"Droid Sans","Helvetica Neue",sans-serif;font-size:16px;letter-spacing:-0.08px;white-space:pre-wrap">Stay Connected with Newsletters & More: </span><a href="https://preseem.com/stay-connected/" title="https://preseem.com/stay-connected/" style="color:rgb(0,82,204);font-family:-apple-system,system-ui,"Segoe UI",Roboto,"Noto Sans",Ubuntu,"Droid Sans","Helvetica Neue",sans-serif;font-size:16px;letter-spacing:-0.08px;white-space:pre-wrap" target="_blank"><u>https://preseem.com/stay-connected/</u></a><br></div></div></div></div>