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From: Rick Jones <rick.jones2@hp.com>
To: Jim Gettys <jg@freedesktop.org>
Cc: codel@lists.bufferbloat.net
Subject: Re: [Codel] fq_codel : interval servo
Date: Fri, 31 Aug 2012 10:31:16 -0700	[thread overview]
Message-ID: <5040F4E4.6000204@hp.com> (raw)
In-Reply-To: <5040F143.2010108@freedesktop.org>

On 08/31/2012 10:15 AM, Jim Gettys wrote:
> What is more, consumer ethernet switches do do flow control, whether you
> want them to or not.

My understanding is that Ethernet flow control (what ever its 
802.1mumble might be?) is negotiated when the link is brought-up, and 
that both sides must agree before it will be active.  So, if you (the 
end station) do not want flow control, you can simply not accept it 
during link-up.

Under Linux, the ethtool utility can be used to affect the configuration 
of "pause" (the name coming from the name of the frames used by flow 
control - "pause frames" if I recall correctly)

rick

  reply	other threads:[~2012-08-31 17:31 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-31  6:55 Eric Dumazet
2012-08-31 13:41 ` Jim Gettys
2012-08-31 13:50 ` [Codel] [RFC] fq_codel : interval servo on hosts Eric Dumazet
2012-08-31 13:57   ` [Codel] [RFC v2] " Eric Dumazet
2012-09-01  1:37     ` Yuchung Cheng
2012-09-01 12:51       ` Eric Dumazet
2012-09-04 15:10         ` Nandita Dukkipati
2012-09-04 15:25           ` Jonathan Morton
2012-09-04 15:39             ` Eric Dumazet
2012-09-04 15:34           ` Eric Dumazet
2012-09-04 16:40             ` Dave Taht
2012-09-04 16:54               ` Eric Dumazet
2012-09-04 16:57               ` Eric Dumazet
2012-08-31 15:53 ` [Codel] fq_codel : interval servo Rick Jones
2012-08-31 16:23   ` Eric Dumazet
2012-08-31 16:59     ` Dave Taht
2012-09-01 12:53       ` Eric Dumazet
2012-09-02 18:08         ` Dave Taht
2012-09-02 18:17           ` Dave Taht
2012-09-02 23:28             ` Eric Dumazet
2012-09-02 23:23           ` Eric Dumazet
2012-09-03  0:18             ` Dave Taht
2012-08-31 16:40   ` Jim Gettys
2012-08-31 16:49     ` Jonathan Morton
2012-08-31 17:15       ` Jim Gettys
2012-08-31 17:31         ` Rick Jones [this message]
2012-08-31 17:44           ` Jim Gettys

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