From mboxrd@z Thu Jan 1 00:00:00 1970 From: Damion de Soto Date: Wed, 23 Jun 2004 00:01:35 +0000 Subject: Re: [LARTC] tbf token help Message-Id: <40D8C85F.1020706@snapgear.com> List-Id: References: <200406211243.22474.mknific@siol.net> In-Reply-To: <200406211243.22474.mknific@siol.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Have you fully read: http://lartc.org/howto/lartc.qdisc.classless.html#AEN691 ? most of it is explained in there. > 1) What unit is token? Is "1 token = 1 byte" ? > If this is so, then with rate=0.5mbit and HZ0 the bucket gets filled > with 0,64kb (655 tokens) every 10ms? 1 token is one packet. > 2) How much tokens are used for one packet (1500)? 1 > 3) And token unrelated question. Does packet droping alway ocurrs or > it happens because of bad settings? > > I have applied this settings on 10mbit ethernet card: > tc qdisc add dev eth1 root tbf rate 0.5mbit burst 5kb latency 70ms / > peakrate 1mbit minburst 1540 > > Result: > qdisc tbf 8007: dev eth1 rate 512Kbit burst 5Kb/8 mpu 0b peakrate 1Mbit mtu > 1539b/8 mpu 0b lat 68.4ms > Sent 1284481 bytes 852 pkts (dropped 48, overlimits 1743) Packet dropping happens when too much data is coming in. See the explanation in the link above. regards, -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Damion de Soto - Software Engineer email: damion@snapgear.com SnapGear - A CyberGuard Company --- ph: +61 7 3435 2809 | Custom Embedded Solutions fax: +61 7 3891 3630 | and Security Appliances web: http://www.snapgear.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- Free Embedded Linux Distro at http://www.snapgear.org --- _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/