hi to all i need help to solve this problem i need to change the queue reference to be multi step function(multi level 300 200 500 200) like the attach picture instead of (200) note: the below instruction used to set queue reference in tcl program in AQM in queue "$ que set quref_ 200 " how to modify it to be (multi level 300 200 500 200) thank you very much ENG. ali m