From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rendel, Thorsten" Date: Fri, 17 May 2002 06:06:38 +0000 Subject: [LARTC] bandwidth limit Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: lartc@vger.kernel.org Hi, i am using the CBQ Qdisc as a shaper for my 100Mbit/s Ethernet LAN.=20 I want to limit a bounded, isolated CBQ Class to 10 Mbit/s. # TC class add dev $DEVICE handle X:0 classid X:Y cbq bandwidth 100Mbit/s r= ate 10 Mbit/s prio bounded isolated avpkt 1000 allot 1514 weight 1 maxburst= 15 In my testbed i use a SmartBit Hardware traffic generator to generate traff= ic streams, with different protcols and different paket length. I send a UD= P traffic stream with 20 Mbit/s. The results of my measurementes are that for a paket length of 1518 Bytes t= he shaping works fine, but for a length of 64 Byte the shapings works very = bad. I got at the outgoing interface a bandwidth of 4 Mbit/s. I changed the avpkt, maxburst and allot parameter, but the results didn=B4t= become better. What is the reson for this behavior? Thanx Thorsten _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/