-----Forwarded Message----- > From: Tarek W. <tarek@cyberia.net.lb> > To: LARTC@mailman.ds9a.nl > Subject: Re: [LARTC] QoS for real-time data on ADSL > Date: 26 Nov 2002 09:12:15 -0200 > > > This is purely theoretical... VOIP afaik consumes a decent amount of > bandwidth... I gather you will not be doing any nat. My advice to u is > to drop sqf as it is fu when it comes to bandwidth... I'd set up a root > qdisc pfifo (1:), default flowid 22 (or 1:22), with a child (1:1) class > again a regular pfifo only. now cap that at around 90% of the "stated" > available speed maybe even less since its adsl... now create two > children of that class, the first (1:21) with prio 1, the second > (1:22)with prio 2 (i am not talking about the prio qdisc here, if ur > lost, consult the lartc howto), rate and ceil r irrelevant. create two > children under (1:21), 1:31 with prio 1 and 1:32 with prio2. enqueue sfq > under the 1:31 and TBF under 1:32. now attach filters to the root qdisc > which dump VOIP traffic in 1:21, then attach filters to 1:21 which dump > ACK packets in 1:31 and others with lower priority to dump everything > else (effectively all other VOIP traffic) in 1:32. i think that's a > fullproof solution... > > On Mon, 2002-11-25 at 06:38, Thomas Jalsovsky wrote: > > > > Hello, > > > > I have an ADSL connection to ISP. Our config at the moment is 64k > > upstream and 384 downstream. I would like to set up the upstream QoS > > polixy/shaping for allowing real-time protocols, in my case VoIP (RTP). >