Re: [Bloat] Fwd: [CCWG] ETC: An Elastic Transmission Control Using End-to-End Available Bandwidth Perception

[David Collier-Brown <davec-b@rogers.com>]

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One of those papers that make you go "why didn't I think of that?"

Of course, it does have to work (;-))

--dave

On 2024-07-10 16:40, Dave Taht via Bloat wrote:
> very encouraging
>
> ---------- Forwarded message ---------
> From: *Hesham ElBakoury* <helbakoury@gmail.com>
> Date: Wed, Jul 10, 2024 at 1:34 PM
> Subject: [CCWG] ETC: An Elastic Transmission Control Using End-to-End 
> Available Bandwidth Perception
> To: <ccwg@ietf.org>
>
>
> This paper [1] is published in this week USENIX ATC 2024. It is an 
> interesting paper with surprising results.
>
> *_Paper Abstract_*
> "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."
>
> Hesham
> [1] https://www.usenix.org/conference/atc24/presentation/han
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-- 
David Collier-Brown,         | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
davecb@spamcop.net            |              -- Mark Twain

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