ff-monitor-bw

About

This collection of scripts measures and monitors the available throughput on a given interface via a certain router.

Usage

Monitoring:

./monitor-bw.sh [output.rrd]

Starts periodic measurements and saves results to 'output.rrd'. If the specified 'output.rrd' does not exist yet, then it will be created automatically.

Graphing:

./monitor-bw-rrd2graph.sh [input.rrd] > output.png

Generates a pretty graph from a given rrd file.

Requirements

• rrdtool
• iperf
• brctl
• ip netns
• realpath
• xz

Installation

Arch:

mkdir -p /var/log/rrd/
cp $INSTALLDIR/monitor-bw.service /etc/systemd/system/
ln -s $INSTALLDIR/monitor-bw.sh /usr/local/bin/
systemctl enable monitor-bw.service
systemctl start monitor-bw.service

ln -s $INSTALLDIR/monitor-bw-rrd2graph.sh /usr/local/bin/
mkdir $HTTPDIR/rrd/
crontab -e
## Add:
# */15 * * * * nice rrdtool dump /var/log/rrd/monitor-bw.rrd | nice xz -c > $HTTPDIR/rrd/monitor-bw.xml.xz
# */5 * * * * monitor-bw-rrd2graph.sh /var/log/rrd/monitor-bw.rrd > $HTTPDIR/rrd/monitor-bw.png

Debian:

mkdir -p /var/log/rrd
cp $INSTALLDIR/monitor-bw.init /etc/init.d/monitor-bw
ln -s $INSTALLDIR/monitor-bw.sh /usr/local/bin/
insserv monitor-bw
/etc/init.d/monitor-bw start

ln -s $INSTALLDIR/monitor-bw-rrd2graph.sh /usr/local/bin/
mkdir $HTTPDIR/rrd/
crontab -e
## Add:
# */15 * * * * nice rrdtool dump /var/log/rrd/monitor-bw.rrd | nice xz -c > $HTTPDIR/rrd/monitor-bw.xml.xz
# */5 * * * * PATH=/usr/local/bin/:$PATH monitor-bw-rrd2graph.sh /var/log/rrd/monitor-bw.rrd > $HTTPDIR/rrd/monitor-bw.png