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From: Andy Furniss <andy.furniss@dsl.pipex.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] QoS in Linux
Date: Wed, 01 Mar 2006 14:53:27 +0000	[thread overview]
Message-ID: <4405B567.8000800@dsl.pipex.com> (raw)

Krishan wrote:
> Hello All, I am interested in QoS provided by Linux, when I looked into IP 
> header I came accross ToS field, also while going more into detail about 
> QoS I found that the QoS based on ToS is serviced thru DiffServ which in 
> turn gives more priority to packets with higher value is ToS field, but I 
> am not able to understand when we finally call dev->hard_start_xmit 
> routine of underlying device type driver, how these packets are given high 
> priority or low priority in the device queue.

I don't think they normally are - unless it's drivers support it. If you 
want to shape you normally need to use htb/cbq/hfsc/tbf to rate limit 
below the speed of the device and avoid overfilling it's buffer.

Andy.
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             reply	other threads:[~2006-03-01 14:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-01 14:53 Andy Furniss [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-02-28  6:51 [LARTC] QoS in Linux Krishan

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