Discussion of explicit congestion notification's impact on the Internet
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From: Dave Taht <dave.taht@gmail.com>
To: ECN-Sane <ecn-sane@lists.bufferbloat.net>
Subject: [Ecn-sane] ect(1) queue selector question
Date: Sat, 20 Feb 2021 11:27:33 -0800	[thread overview]
Message-ID: <CAA93jw4P1hoR1N9c17JG030kBymZnYT8VSvy4vsmrzqSN++phQ@mail.gmail.com> (raw)

I note that I have done my best to stay out of this for a while, so
long that I (thankfully) mis-remember various aspects of the debate.
Today I have a question about l4s vs SCE as it's come up again.

l4s uses both a dscp codepoint AND ect(1) to indicate dctcp style
congestion control
is in use, and also can dump other protocols into that queue lacking
any ecn markings.

SCE proposes to use ect(1) as an indicator of some congestion and does
not explictly
require a dscp codepoint in a FQ'd implementation.

Do I have that right? Now, my question was, simply, in MPLS or X-G are
they out of bits, and
that's why they want to use up this one in L4S?

-- 
"For a successful technology, reality must take precedence over public
relations, for Mother Nature cannot be fooled" - Richard Feynman

dave@taht.net <Dave Täht> CTO, TekLibre, LLC Tel: 1-831-435-0729

             reply	other threads:[~2021-02-20 19:27 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-20 19:27 Dave Taht [this message]
2021-02-21  1:51 ` Sebastian Moeller
2021-02-21 17:14   ` Rodney W. Grimes
2021-02-21 20:26     ` Dave Taht
2021-03-09  0:36 Pete Heist
2021-03-09  1:18 ` Dave Taht
2021-03-09  9:11   ` Pete Heist
2021-03-09 15:19   ` Rodney W. Grimes
2021-03-09 15:28     ` Dave Taht
2021-03-09 15:38       ` Rodney W. Grimes

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