Hello to everyone, I'm trying to understand a basic QOS setup. I read the available documentation (like the Linux - Advanced Networking Overview at http://qos.ittc.ukans.edu/howto/howto.html, and the iproute2+tc notes at http://snafu.freedom.org/linux2.2/iproute-notes.html#intro) but until now I was unable to setup a basic configuration that shows any effect. For a basic setup to help me understand how things should be configured I "simply" wanted to limt the bandwidth of *all* IP traffic on the eth0 interface of a certain machine to a limit of, say 1Mbit/sec. I tried the following (basicly taken from the docs mentioned above): tc qdisc add dev eth0 root handle 1: cbq bandwidth 100Mbit allot 1514 cell 8 avpkt 1000 mpu 64 and added a class tc class add dev eth0 parent 1:1 classid 1:2 cbq bandwidth 1Mbit rate 1Mbit allot 1514 cell 8 weight 100Kbit prio 3 maxburst 20 avpkt 1000 split 1:0 defmap c0 Well I hoped this would be all to do, but it shows no effect. Running tc -s -d qdisc shows that the qos-system sees the packets since the counters are increased when I generate network traffic. But the overlimits counter is always zero. So I think my configuration misses something that tells the QOS system which packages to look at? Unfortunately I was unable to understand how this could be done out of the docs. Can anyone tell me how a configuration could look for my purpose? Thanks Rainer -- --------------------------------------------------------------------- Rainer Krienke krienke@uni-koblenz.de Universitaet Koblenz, http://www.uni-koblenz.de/~krienke Rechenzentrum, Voice: +49 261 287 - 1312 Rheinau 1, 56075 Koblenz, Germany Fax: +49 261 287 - 1001312 --------------------------------------------------------------------- - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org
