The Network Graph displays your network in a graphical view. Clicking the Network Graph icon gives you access to the Network Graph via the Show drop-down menu and displays a Network Graph of managed devices seen in your network. There is a Concentric view (default) and a Hierarchical view.
To switch to the Hierarchical view, click the Hierarchical button.
Click Concentric to return to the Concentric view. You can manipulate the graph by using: