Overview of MRTG - IMG

Topic Location: Monitoring the IMG > MRTG


(Note: If using 10.5.1 + software the cantata folder will be changed to dialogic)


The Multi Router Traffic Grapher (MRTG) is a tool to monitor various items in an IMG. Information such as temperature, CPU, memory, CPU usage and disk space is logged. The MRTG generates HTML pages containing PNG images which provide a live visual representation of data. MRTG log files are stored in the following directory:  


/opt/dialogic/common/mrtg_logs (Software 10.5.1+)


The MRTG Data is refreshed in 5 minute intervals.


The following information is reported for different IMG components:


See Sample MRTG Main Page.


Using MRTG:

Perform the following steps to install and use the MRTG.

  1. Install MRTG

  2. Setup an MRTG Web Host (optional)

  3. To generate MRTG logs, press the MRTG Scripts button on the Dialogic® EMS pane in ClientView. You can update the MRTG from the Channel Groups pane after you add channel groups.


Note: If you add a Channel Group in ClientView, you must re-generate the MRTG scripts to include those Channel Groups in the MRTG log files.


  1. To view logs, connect to the Apache Web Server (from step 2), or go to either

/opt/dialogic/common/mrtg_logs (Software 10.5.1 +)


and view individual logs with a web browser.


Note: When using Microsoft Internet Explorer® as a Web Browser, an issue with the browser could arise where the cache is not properly updated and any MRTG Data that was previously viewed could be propagated to the newly opened MRTG window. To fix this issue, follow steps below.


MRTG Log Files

The following html files are generated by the MRTG:


Level 1: System Index

This file shows a single graph for each IMG that is configured in the GCEMS. The main graph for each IMG is the Total Traffic single day graph.  Click on a graph to view additional graphs for that IMG. This will take you to the IMG Index graph for that IMG.

Level 1: Local Host

The following graphs are generated for the local host:

Level 2: Individual IMGs

There is one IMG Index graph for each IMG. This page contains four graphs, shown below in red with applicable sub-graphs:



CPU Utilization


Memory Data

Each of these has the following subgraphs:


Temperature Data

Each of these has the following subgraphs: