7.4. Interacting with the Circles chart

7.4.1. Selectively labelling chart elements

In addition to automatically labelling chart elements, you can selectively label chart elements by clicking on the element of interest. To show a label for an end host, click on the black square for the end host; to show a label for a cluster, click on the white square in the centre of the circles, to label a flow click on a line. To remove a label, click on in the top right corner of the label.

7.4.2. Displaying end host information

You can find out more information about an end host by first clicking on the black square for the end host to display the label, then click on . This will open the Lookup host dialog using the end host address. If the Lookup host dialog is already open, then the dialog will be changed to show information for the newly selected host. See Chapter 11, End host information for more information.

7.4.3. Pan and zoom

The chart includes a view controller that allows you to zoom in and out; pan left, right, up, and down; and reset the chart to fit in the window. In addition you can zoom in and out using the mouse wheel and pan by dragging the mouse with the left button held down.

7.4.4. Filtering for specific traffic

sFlowTrend-Pro allows the information displayed in the chart to be filtered. This allows you to focus on traffic that may be of interest.

You can specify a filter using the Filter bar (see Section 3.2.2.4, “Filtering for specific traffic”). In addition you can click on a label for an end host or a flow to automatically filter on traffic for the labelled end host or flow. You can also click on the legend entries to filter on traffic for specific protocols.