Multi Router Traffic Grapher

Multi Router Traffic Grapher, short MRTG, is a program for graphical analysis or display of measured values ​​, originally developed for the measurement of network traffic (traffic). MRTG generates HTML pages containing graphical images that contain graphic evaluations. To collect the data using SNMP. Written is the software in Perl and some C. The software is freely available under the GNU GPL.

Meanwhile MRTG is used to visualize many data used: the temperature in the server room to the number of incoming spam messages a day.