TC Trouble: RTNETLINK answers: Invalid argument

[Thomas Zeng <zeng@PacketVideo.com>]

Dear linux-diffserv:

Could someone please help me out here?

I am trying to use TC for the first time. I recompiled 2.2.14
kernel with RTNETLINK turned on. Then I did the following:
1. Reboot my machine with the newly compiled linux kernel.
2. Compiled iprount2.
3. Ran the following command from iprounte2/tc:
 ./tc qdisc add dev eth0 handle 1: cbq bandwidth 10Mbit allot 1514 cell 8
avpkt 1000 mpu 64  

Then I got the error msg:
RTNETLINK answers: Invalid argument  

What did I do wrong?

thanks,
tom