tc qdisc add dev tap1 parent root handle 1: hfsc default 11
tc class add dev tap1 parent 1: classid 1:1 hfsc sc rate 10mbit ul rate 10mbit
tc class add dev tap1 parent 1:1 classid 1:11 hfsc sc rate 250kbit ul rate 10mbit
tc class add dev tap1 parent 1:1 classid 1:12 hfsc sc rate 250kbit ul rate ...