From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stef Coene Date: Thu, 28 Feb 2002 09:04:36 +0000 Subject: Re: [LARTC] basic htb setup Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org On Thursday 28 February 2002 04:25, Ben wrote: > Hey all. I'm trying to set up QoS using the HTB qdisc in a very basic > setup, but it the example shown in the howto doesn't seem to be working. > While the packets show up in the correct classes, they appear to be > completely ignoring the rates, meaning nothing gets shaped. > > My setup is that I've got a a bunch of machines behind my firewall/router: > > > 1.2.3.1 +----------------------------+ 10.0.0.1 > 1.2.3.2 -----+eth0 firewall/router eth1+--- 10.0.0.2 > 1.2.3.3 +----------------------------+ 10.0.0.3 > > > 10.0.0.1 is nat'd to 1.2.3.1, 10.0.0.2 to 1.2.3.2, etc. eth0 is attached > to a 768Kbit DSL line, and eth1 to a 100Mb ethernet. > > I want to limit the output of 10.0.0.1, but let it borrow from everybody > else's bandwidth when the bandwidth would go unused. HTB seems ideal for > this, and the TC stuff is pretty much identical to the basic one in the > howto: > > tc qdisc add dev eth0 handle 1: root htb default 11 > > tc class add dev eth0 parent 1: classid 1:1 htb rate 768kbit ceil 768kbit > burst 15k tc class add dev eth0 parent 1:1 classid 1:10 htb rate 160kbit > ceil 768kbit burst 15k tc class add dev eth0 parent 1:1 classid 1:11 htb > rate 608kbit ceil 768kbit burst 15k > > tc qdisc add dev eth0 parent 1:10 handle 10: sfq perturb 10 > tc qdisc add dev eth0 parent 1:11 handle 10: sfq perturb 10 You use twice handle 10:. Typo ? > > tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip src > 1.2.3.1 flowid 1:10 > > > When I start sucking a lot of data from 10.0.0.1 and 10.0.0.2 from outside > the firewall, the packets end up in the correct classes (judging by tc -s > -d show dev eth0). But they also are processed at equal rates, not at the > 160:608 ratio I've specified. Do you use the full 768kbit ? When you do tc -s -d class show dev eth0, do you see any packets in class 1:11? Or better, post the output of that command. Stef -- stef.coene@docum.org More QOS info : http://www.docum.org/ Title : "Using Linux as bandwidth manager" _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/