Event Hub visualization and recording UI is a browser-based tool that provides a graphical overview of the publisher and subscriber topology. The UI provides access to event recording functionality. To access the visualization UI click the "Visualization" link from the main Event Hub management page. This diagram shows the view of the Event Hub topology visualization and recording interface:

Topology visualization provides a graphical overview of the data flow between the publishers and subscribers that are connected to Event Hub and buttons for updating the view or controlling the event recording process.