netdev - Re: Does tc-prio really work as advertised?

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Message-ID: <20071127095838.GA2772@ff.dom.local>
Date:	Tue, 27 Nov 2007 10:58:38 +0100
From:	Jarek Poplawski <jarkao2@...pl>
To:	Joerg Pommnitz <pommnitz@...oo.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Does tc-prio really work as advertised?

On Tue, Nov 27, 2007 at 01:28:43AM -0800, Joerg Pommnitz wrote:
> Jarek,
> iptables chains (this is what I think you are referring to) are not the issue.

Yes, but this could (wrongly) look like this according to my 1-st message.

> This
> is about the qdisc that sits immediately over the device driver and decides the
> order waiting packets are sent over the line/air/carrier pigeon/... .
> My suspicion is that skb->priority used to be set to a value that derived from the
> TOS bits. Then something changed and nobody noticed.

I'm not sure of your problem: did you try this on a box which
gets packets with TOS set earlier, does forwarding, and uses this
prio on egress? If so, and this doesn't work, then you are right
something could be wrong.

Regards,
Jarek P.
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