run-pie-v-red-experiment.sh

#!/bin/bash

# This script accepts three arguments: the destination (to ping, and from which to retrieve files),
# the total duration for which to generate traffic (in seconds), and the time to wait before starting
# to generate traffic (in seconds).

addr=$1
time=$2
wait=$3
lastwait=$(expr 260 - $wait - $time)

# Make sure the delay is set on the link
sudo tc qdisc replace dev eth1 root netem delay 100ms

# Start pinging the destination
sudo ping -i 0.1 -c 2600 $addr > originalping.csv &

sleep $wait

starttime=$(date '+%H:%M:%S');
echo "start getting files from" $addr "at" "$starttime"

shift 2

i=1
while [ $i -lt 21 ]
do
	wget -q -O/dev/null ftp://$addr/test"$i".dat &
	i=$(($i+1))
done

sleep $time

#PID=`ps -ef | grep ftp | grep -v "grep" | awk '{print $2}'`
#kill -9 $PID
sudo kill -9 `ps -ef | grep ftp | grep -v grep | awk '{print $2}'`

endtime=$(date '+%H:%M:%S');
echo "stop getting files from" $addr "at" "$endtime"

sleep $lastwait

tail -n+2 originalping.csv | head -n-4 > middleping.csv
awk -F "[: ]" '{print $7","$9}' middleping.csv | sed -e "s/icmp_seq=//" | sed -e "s/time=//" | awk -F',' '{$2 = $2 - 100; print $1","$2}' > ping_delay.csv
gnuplot /usr/local/bin/plot-ping-delay.gp