The ManageEngine MibBrowser enables real-time plotting of SNMP data in a graph. Currently two types of graph are supported - line graph and bar graph. The SNMP data to be polled should be of integer or unsigned integer data type. Typically the values that are plotted will be of type Counter, Gauge or Timeticks.
The following steps should be taken for plotting the SNMP data in the graph:
After selecting the variable from the MibTree, click on the GRAPH image button or select the menu item Line Graph or Bar Graph from the View menu. This brings up an automatically updated graph showing the results of periodically polling the specified agent for the specified OID. By default polling for the graph is done every 5 seconds.
The following options can be configured for the graph:
The "Stop" button can be used to stop the polling of the variable. The "Restart" button can be used to restart the polling. The "Close" button is used to close the graph window.
The MibBrowser can plot multiple graphs showing values for different variables from different hosts . Note that the graphs does not plot the absolute value but only the difference between two values.
Debugging and decoding
The MibBrowser application provides facility to view the debug output of the SNMP operations. To view the debug output the debug window has to be invoked by clicking on the debug icon or by selecting the View --> Debug menu from the menu bar.
As long as this window is opened, debugging is turned on, and debugging output is generated. When this window is closed the debugging is turned off.
The three icons in the debug window provide the following function: