From: Jeremy Harris <jgh@wizmail.org>
To: ecn-sane@lists.bufferbloat.net
Subject: Re: [Ecn-sane] what does ecnseen really mean?
Date: Wed, 13 Jan 2021 09:23:43 +0000 [thread overview]
Message-ID: <8ab8f210-8950-ae3a-e8c3-ed5603478600@wizmail.org> (raw)
In-Reply-To: <CAA93jw6y5az7bfG2RPLgh33H0tPGodvKkMtS6uwPMp7kueZFmg@mail.gmail.com>
On 13/01/2021 04:48, Dave Taht wrote:
> from a random box with bbr on and tons of connections.
>
> ```
> % sysctl -a | fgrep ecn
> net.ipv4.tcp_ecn = 2
> net.ipv4.tcp_ecn_fallback = 1
>
> % ss -antie 'src x.y/16' | fgrep bbr | fgrep -c ecn
> 524
ecn show string "ecn" if the explicit congestion notification option is set
>
> % ss -antie 'src x.y/16' | fgrep bbr | fgrep -c ecnseen
> 484
ecnseen
show string "ecnseen" if the saw ecn flag is found in received packets
>
> % ss -antie 'src x.y/16' | fgrep bbr | wc -l
> 22037
> ```
>
>
>
--
Cheers,
Jeremy
prev parent reply other threads:[~2021-01-13 9:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-13 4:48 Dave Taht
2021-01-13 9:23 ` Jeremy Harris [this message]
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