traffic shaping.sh

#!/bin/bash

RATE=5
CEIL=1

echo -e "Clean rules"
/sbin/tc qdisc del dev eth0 root

echo -e "Turn on queueing discipline"
/sbin/tc qdisc add dev eth0 root handle 1: htb default 15

echo -e "Rule class trafic shapping"
/sbin/tc class add dev eth0 parent 1: classid 1:1 htb rate ${CEIL}mbit ceil ${CEIL}mbit
/sbin/tc class add dev eth0 parent 1:1 classid 1:10 htb rate ${RATE}mbit ceil ${CEIL}mbit prio 0

echo -e "Attach class mark to protocol"
/sbin/iptables -A OUTPUT -t mangle -p tcp -d 172.31.16.0/20 --sport 80 -j MARK --set-mark 10

echo -e "Apply limit"
tc filter add dev eth0 parent 1:0 prio 0 protocol ip handle 10 fw flowid 1:10