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Date:      Sun, 9 Jun 2002 13:38:59 -0700
From:      Luigi Rizzo <rizzo@icir.org>
To:        Adrian Penisoara <ady@freebsd.ady.ro>
Cc:        ipfw@FreeBSD.ORG, freebsd-altq list <freebsd-altq@rofug.ro>
Subject:   Re: New ipfw code available
Message-ID:  <20020609133859.A49793@iguana.icir.org>
In-Reply-To: <Pine.BSF.4.10.10206091301580.44932-100000@ady.warpnet.ro>; from ady@freebsd.ady.ro on Sun, Jun 09, 2002 at 01:18:17PM +0300
References:  <20020608201909.A41807@iguana.icir.org> <Pine.BSF.4.10.10206091301580.44932-100000@ady.warpnet.ro>

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On Sun, Jun 09, 2002 at 01:18:17PM +0300, Adrian Penisoara wrote:
...
>   From another point of view (more specifically, the integration of
> ALTQ QoS framework into FreeBSD -current), cold you please think about
> the possibility of integrating into ipfw a classifier mechanism  who
> will be able to "tag" the packets into specific classes, information
> which will be used by the ALTQ queueing disciplines to perform their QoS
> packet scheduling. This will probably imply the addition of a class

this is what ipfw already does. The "pipe" and "queue" actions,
among others, just tag a packet with an integer, which is then used
by a separate mechanism (dummynet in this case) to perform the
scheduling as appropriate.

Have a look at ip_input.c and ip_output.c on how these attributes
are handled.

It would be trivial to add additional actions, e.g. to pass classified
packets to ALTQ, assuming they are necessary at all.

	cheers
	luigi


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