netdev - Re: Prioritize a vlan on another

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Message-ID: <CAPN4dA_N+tLcSRWPcYmoxgLAkmv2HT2aDb8w8se=qH3id4z_Kw@mail.gmail.com>
Date:	Fri, 4 Sep 2015 12:52:45 +0200
From:	Aurélien <footplus@...il.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: Prioritize a vlan on another

On Tue, Sep 1, 2015 at 11:07 PM, <footplus@...il.com> wrote:
>
> Hello,
>
> I'm not sure if this is the right place to ask this, but i'm stuck on a trafic priority problem since some time.
>
> I have 2 10Gb interfaces (bnx2x) bonded in a 802.3ad aggregate. On this aggregate, 2 vlans are configured (let's INT and EXT) I need to ensure that, when sending traffic at near line rate via EXT, all packets targeted to INT are sent in priority (dropping EXT traffic as needed).
>

Replying to myself:

It seems that all I was needing was a -j CLASSIFY --set-class 0:6 in iptables.

This sufficed to classifiy the traffic in band 0 within 8 prio qdisc
(with default priomap/bands) attached below the 8 first classes of mq.
However, the packet TOS does not seem to affect the priority inside
the VLAN/bonding with mq in any way.

Problem solved for me.

Thanks,
Best regards,

-- 
Aurélien Guillaume
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