Date: Mon, 5 Oct 2009 17:59:16 +0800 From: Eugene Grosbein <eugen@kuzbass.ru> To: rihad <rihad@mail.ru> Cc: freebsd-net@freebsd.org Subject: Re: dummynet dropping too many packets Message-ID: <20091005095916.GB73335@svzserv.kemerovo.su> In-Reply-To: <4AC9C0ED.3020904@mail.ru> References: <4AC8A76B.3050502@mail.ru> <20091005025521.GA52702@svzserv.kemerovo.su> <20091005061025.GB55845@onelab2.iet.unipi.it> <4AC9B400.9020400@mail.ru> <20091005090102.GA70430@svzserv.kemerovo.su> <4AC9C0ED.3020904@mail.ru>
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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
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