<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jul 10, 2024 at 3:11 PM David Collier-Brown via Bloat <<a href="mailto:bloat@lists.bufferbloat.net">bloat@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"><u></u>
<div>
<p>One of those papers that make you go "why didn't I think of
that?"</p>
<p>Of course, it does have to work (;-))</p></div></blockquote><div><br></div><div>No sources, no email addresses, I am tempted to drop in on the conference to see if any source is available.</div><div><br></div><div>There are a lot of ideas in there that I have been advocating a while - varying the pacing rate (e!) to get an early estimate of congestion - and quite a few more newer ones that seem excellent, like just treating the leading edge of an ack as part of the estimator. Love how well it competes with itself!</div><div><br></div><div>It's just a paper... no sources... agggh....</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>
<p>--dave<br>
</p>
<div>On 2024-07-10 16:40, Dave Taht via
Bloat wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">very encouraging<br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">---------- Forwarded message
---------<br>
From: <strong class="gmail_sendername" dir="auto">Hesham
ElBakoury</strong> <span dir="auto"><<a href="mailto:helbakoury@gmail.com" target="_blank">helbakoury@gmail.com</a>></span><br>
Date: Wed, Jul 10, 2024 at 1:34 PM<br>
Subject: [CCWG] ETC: An Elastic Transmission Control Using
End-to-End Available Bandwidth Perception<br>
To: <<a href="mailto:ccwg@ietf.org" target="_blank">ccwg@ietf.org</a>><br>
</div>
<br>
<br>
<div dir="auto">
<div dir="auto">This paper [1] is published in this week
USENIX ATC 2024. It is an interesting paper with
surprising results.</div>
<div dir="auto"><br>
</div>
<div dir="auto">
<div dir="auto"><b><u>Paper Abstract</u></b></div>
<div dir="auto">"Researchers and practitioners have
proposed various transport protocols to keep up with
advances in networks and the applications that use them.
Current Wide Area Network protocols strive to identify a
congestion signal to make distributed but fair
judgments. However, existing congestion signals such as
RTT and packet loss can only be observed after
congestion occurs. We therefore propose Elastic
Transmission Control (ETC). ETC exploits the
instantaneous receipt rate of N consecutive packets as
the congestion signal. We refer to this as the pulling
rate, as we posit that the receipt rate can be used to
“pull” the sending rate towards a fair share of the
capacity. Naturally, this signal can be measured prior
to congestion, as senders can access it immediately
after the acknowledgment of the first N packets.
Exploiting the pulling rate measurements, ETC calculates
the optimal rate update steps following a simple elastic
principle: the further away from the pulling rate, the
faster the sending rate increases. We conduct extensive
experiments using both simulated and real networks. Our
results show that ETC outperforms the state-of-the-art
protocols in terms of both throughput (15% higher than
Copa) and latency (20% lower than BBR). Besides, ETC
shows superiority in convergence speed and fairness,
with a 10× im-provement in convergence time even
compared to the protocol with the best convergence
performance."</div>
<div dir="auto"><br>
</div>
<div dir="auto">Hesham</div>
<div dir="auto">[1] <a href="https://www.usenix.org/conference/atc24/presentation/han" rel="noreferrer" target="_blank">https://www.usenix.org/conference/atc24/presentation/han</a></div>
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<div>Dave Täht CSO, LibreQos<br>
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<pre cols="72">--
David Collier-Brown, | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
<a href="mailto:davecb@spamcop.net" target="_blank">davecb@spamcop.net</a> | -- Mark Twain</pre>
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</blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><a href="https://www.linkedin.com/feed/update/urn:li:activity:7203400057172180992/" target="_blank">https://www.linkedin.com/feed/update/urn:li:activity:7203400057172180992/</a></div><div>Donations Drive.</div><div>Dave Täht CSO, LibreQos<br></div></div></div></div>