Hi, thank u very much for explanations. I played with cell-parameter. And I got the best results with cell=2048. With this value iproute2 allocates almost as much bandwidth as i want for cbq-class. But I don't know, if this is a good value for cell. Pehaps it depends on the amount of bandwidth u want to allocate and from mpu-size. Jan -- Sent through GMX FreeMail - http://www.gmx.net