#!/bin/sh

DEV=eth0
RATE=$((256*1024))

if [ "$1" = "stop" ]; then
    tc qdisc del dev $DEV root && echo "Shaping removed on $DEV."
    exit
fi

tc qdisc add dev $DEV root handle 1: htb default 11
tc class add dev $DEV parent 1: classid 1:1 htb rate ${RATE}bit

tc class add dev $DEV parent 1:1 classid 1:10 htb rate $(($RATE/4))bit ceil ${RATE}bit prio 0
tc class add dev $DEV parent 1:1 classid 1:11 htb rate $(($RATE/4))bit ceil ${RATE}bit prio 1
tc class add dev $DEV parent 1:1 classid 1:12 htb rate $(($RATE/4))bit ceil ${RATE}bit prio 2
tc class add dev $DEV parent 1:1 classid 1:13 htb rate $(($RATE/4))bit ceil ${RATE}bit prio 3