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From: Jonathan Morton <chromatix99@gmail.com>
To: Sebastian Moeller <moeller0@gmx.de>
Cc: bloat <bloat@lists.bufferbloat.net>,
	ECN-Sane <ecn-sane@lists.bufferbloat.net>
Subject: Re: [Bloat] [Ecn-sane] The curious case of "cursed-ECN" steam downloads
Date: Mon, 4 Sep 2023 01:36:03 +0300	[thread overview]
Message-ID: <49DF744B-E60F-47CA-AF57-F2C5D42B9244@gmail.com> (raw)
In-Reply-To: <758B6681-14B5-473E-9706-45B7E2927505@gmx.de>

> On 3 Sep, 2023, at 9:54 pm, Sebastian Moeller via Ecn-sane <ecn-sane@lists.bufferbloat.net> wrote:
> 
> B) Excessive ECT(1) marking (this happened with a multi-GB download)

This *could* be a badly configured middlebox attempting to apply a DSCP, but clobbering the entire TOS byte instead of the (left justified) DSCP field.  Apparently Comcast just found a whole raft of these in their own network as part of rolling out L4S support.  Funny how they didn't notice them previously.

 - Jonathan Morton

  reply	other threads:[~2023-09-03 22:36 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-03 18:54 [Bloat] " Sebastian Moeller
2023-09-03 22:36 ` Jonathan Morton [this message]
2023-09-04  7:14   ` [Bloat] [Ecn-sane] " Sebastian Moeller

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