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The Bar graph depicts the real-time plotting of the SNMP data. Follow the steps below to invoke a bar graph from the MibBrowser, which is similar to invoking a Line graph.
Specify the proper agent host name or IP address in the host field of the MibBrowser.
Load the MIB file in MibBrowser. To know more on loading MIBs and other features associated with it, refer the MIB Operations section.
Specify a valid variable. The variable must be an integer or unsigned integer (Counter, Gauge, TimeTicks). This variable can be entered directly in the variable field or it can be chosen by browsing through the MIB tree.
Select the View-->Bar Graph from the menu bar. You can also use the shortcut key combination Alt + B.
The updated Bar graph shows the results of periodically polling the agent for the specified OID.
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Note: The Bar graph does not have an option for plotting multiple variables in the graph. Therefore, in case of a columnar OID, you need to append the instance of the index in order to enable the plotting of Bar graph. For example, to plot a bar graph for the values of the first row of the columnar OID ifOperStatus (ifTable), you need to first select the node ifOperStatus. Then, in the Object ID text field, append ".1" with the OID and select View-->Bar Graph from the menu. This plots the value of the first row of the column ifOperStatus |
The image below depicts a Bar graph invoked from MibBrowser.
The various options available in the Bar Graph are tabulated below.
| Option | Description |
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Polling Interval |
This specifies the polling interval time. The default value is 5 secs. You can change the interval time as desired. |
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Average over Interval |
By default, the graph shows the actual values of a variable for different hosts. In other words, the values of the specified OID are plotted for different hosts for the given polling interval. Selecting this option, the average of the values at a given polling interval is taken for plotting the graph. |
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Range |
Altering the range would change the X-axis scale of the table. The default value is 300 secs. The other options are 600 secs and 1000 secs. |
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Show Absolute Time |
By default, the time is depicted in the graphs only as seconds. Selecting this option would give you the time in hours:mins:secs. |
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Restart |
The Restart button is used to restart the polling. |
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Stop |
The Stop button is used to stop the polling. |
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Close |
The Close button is used to close the Bar graph window. |
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