The Counters, Top N, and Circles tabs allow you to view data for a specific interface. Use the Interface selector in the control bar to select the interface that you are interested in. The Interface selector lists the interfaces for the currently selected switch, for which sFlow data is being received and stored. An interface is listed using its ifIndex, ifName, or ifAlias. (see Section 13.1.1, “Setting the switch and interface naming policy”). Changing the interface selection causes a chart for the newly selected interface to be displayed.
In the Top N and Circles tabs, the Interface selector also contains an option All. Selecting this option allows you to view traffic flows through the whole switch (across all interfaces). This option is not available in the Counters tab, since counter charts can only display data for a single interface.