Hello, I'm trying to get started with "tc", using some online examples, but the first line already returns an error. == $ tc qdisc add dev eth0 root handle 10:0 cbq bandwidth 10 Mbit avpkt 1000 RTNETLINK answers: Invalid argument == What could be wrong? There is a eth0 interface up and running. == $ ip link 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:e0:29:64:bf:87 brd ff:ff:ff:ff:ff:ff == I use RedHat 6.2 out of the box (kernel 2.2.14), have installed iproute2-ss990630. I don't mind a RTFM, it would be fine if someone could point me to the right docs (except for the source code :-). Thanks, Tung