yabm – Yet Another Bandwidth Meter
yabm is a yet another bandwidth meter/monitor, but developed for FreeBSD.
Using the PNG image format it displays a graphical representation of the current bandwidth usage.
It should run on any recent FreeBSD version >= 4.10, it has been tested on
Available from the FreeBSD ports tree in net-mgmt/yabm
Green represents incoming traffic and blue represents outgoing traffic.
Make sure you’ve got libpng install, then installation is simple just type
make make install
There is a FreeBSD startup script in scripts/ to install it do the following
The following only applies if you want to use the included startup script, you
cd scripts make mv yabm.sh /usr/local/etc/rc.d chmod 0755 /usr/local/etc/rc.d/yabm.sh
Example; To make yabm monitor interface fxp0, rl0 and ip-address 192.168.0.1 the following
yabm_enable="YES" yabm_if0="fxp0" yabm_if0_output="/usr/local/www/bw-fxp0.png" yabm_if0_flags="-t" yabm_if1="rl0" yabm_if1_output="/usr/local/www/bw-rl0.png" yabm_if1_flags="-m 512k -t" yabm_alias0="192.168.0.1" yabm_alias0_output="/usr/local/www/bw-ip.png" yabm_alias0_flags=""
Start/stop is done as with any startup script
The following options are available, they should probably be self-explained.
yabm 0.2.1 (Yet Another Bandwidth Meter) Usage ./yabm [-i iface|-a alias] [options] -i interface Interface-based measurement -a ipnumber IP-address based measurement (only AF_INET) Options -s seconds Calculate average bandwidth over this many seconds (Default 60) 60 secs = 1 min/avg, 1 sec = realtime, 300 secs = 5 min/avg -o file Output filename (and path) (Default bw.png) -m bits[kmg] Device max speed (eg. 512k, 100m, 1g, etc) (Default ask device) -b hex Background color (Default c0c0c0) -n hex Incoming bar color (Default 69ff34) -u hex Outgoing bar color (Default 0079b7) -w pixels Image width (Default 640) -h pixels Image height (Default 11) -t Include text display of bandwidth utilization -y Display bytes instead of bits -k number How many markers to draw (Default 3) -p file Pidfile (Default /var/run/yabm.pid)
The above graph (in screenshot) is generated by
yabm -i ed1 -m 512k -o ed1.png -t
Q: The image is always blank
A: Well, try to use some bandwidth :)
Q: Can this be used on other platforms than FreeBSD?
A: Well, it might work for the other *BSDs but that’s nothing I’ve tested