Figure 12. Graph Options Dialog.

1.Polling Interval Changes the value for the Lines graph main window and its parent (see figure 8.)

2.Min Y, Max Y, Min t, Max t Changes the scaling ranges for the Y-axis and X (t) axis. If you check Automatic Change of Ranges, changes are made automatically. NOTE: For graphs, where the X-axis indicates time, the X check box should be always checked. Sometimes it is better to turn off the Y check box, especially when graphs have peaks.

3.Show in the graph Change these values to correspond to the type of statistic a graph contains. For example, Absolute Value (number of packets), Relative to X (packets/second), Value in percents (same function as Absolute Value, but data ranges from 0 to 100%)

Legend - Opens a sub-window that displays the current statistics: category, time elapsed, and value. Category names and port numbers are color-coded corresponding to lines on the graph.

Figure 13. Legend Dialog.

Grid - Adds a grid to the graph. To delete the grid, click on the button again.

Bar Graphs

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MegaVision Network Management System manual Bar Graphs, Graph Options Dialog