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Date: Mon, 5 Oct 2009 17:59:16 +0800
From: Eugene Grosbein <eugen@kuzbass.ru>
To: rihad <rihad@mail.ru>
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Cc: freebsd-net@freebsd.org
Subject: Re: dummynet dropping too many packets
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On Mon, Oct 05, 2009 at 02:48:29PM +0500, rihad wrote:

> >First switch from taildrop (default) to GRED, it is designed to fight
> >your problem.
> 
>      red | gred w_q/min_th/max_th/max_p
>            Make use of the RED (Random Early Detection) queue 
> management algo-
>            rithm.  w_q and max_p are floating point numbers between 0 
> and 1 (0
>            not included), while min_th and max_th are integer numbers 
> specify-
>            ing thresholds for queue management (thresholds are computed in
>            bytes if the queue has been defined in bytes, in slots 
> otherwise).
>            The dummynet(4) also supports the gentle RED variant (gred).
> 
> Do you or someone else know what w_q and max_p are?
> 
> There's just too much info for me to grasp here:
> http://www.icir.org/floyd/red.html

http://docs.freebsd.org/cgi/getmsg.cgi?fetch=126518+0+archive/2009/freebsd-net/20091004.freebsd-net

Eugene Grosbein