tc qdisc del dev lo root
tc qdisc add dev lo root handle 1: htb

TC="tc class add dev lo parent"

$TC 1:  classid 1:1  htb rate 300kbps
$TC 1:1 classid 1:10 htb rate 150kbps ceil 300kbps burst 500kb
$TC 1:1 classid 1:11 htb rate 150kbps ceil 300kbps