Hello, Could you tell me how did you solve your problem? I have exactly the same problem but with this configuration: - linux 2.4.20 kernel, HTB option checked - iproute2-2.4.7-now-ss010824.tar.gz installed, which is the latest version I found at ftp://ftp.sunet.se/pub/Linux/ip-routing/, except for "try" or "do not use" versions. I guess I do not need patching iproute2 and I'm not using an old version of tc either. Or am I wrong somewhere? Br, Emmanuel >Hello, > >I'd like to try out HTB for traffic shaping. > >I have a test machine with Redhat 7.2 (kernel 2.4.10), I've downloaded >kernel 2.4.17, applied the patch from http://luxik.cdi.cz/~devik/qos/htb/, <http://luxik.cdi.cz/%7Edevik/qos/htb/,> >recompiled the kernel (checked the option to use HTB in make menuconfig), >and rebooted with the new kernel. > >When I try to add some rules with HTB (f.i. tc qdisc add dev eth0 root >handle 1: htb default 1:1 ), I got the following error message: >Unknown qdisc "htb", hence option "default" is unparsable > >Obviously, this is not what I want :-) > >What is going wrong here? > >Regards, >Patrick