Topology widget
Each node represents an item, or resource, from the data set and the connections represent defined relationships (for example, servers and network connections). Nodes can have multiple relationship with other nodes.
A Topology widget shows selected attributes from a data set, and are arranged to show connections between them. Depending on the widget configuration, you can select from several topology views, zoom and pan, search the diagram for a specific resource, and select resources based on status.
A Topology widget sends a Node clicked event when a user clicks a node in the diagram. Any widget that is on the same page and responds to this event can be configured to update its content based on the context of the selected item. For example, when a user selects a resource shown by the topology diagram, a chart on the same page can update to show data from that resource.
To configure a Topology widget, you can specify the data it displays and the options that affect the appearance and behavior of nodes in the topology diagram.
The Topology widget features the following UI elements:
- Title bar
- The title bar includes the following elements:
- Widget title - The title bar displays a title for table, that is, if an administrator configured a title for the Topology widget. An administrator can also choose to hide the title bar.
- The Edit options drop-down arrow icon () to provide access to edit mode for administrators.
- The widget help icon (). Click the help icon to view help for the Topology widget.
- Toolbar
- If the toolbar is not visible, click the show toolbar arrow () to display it. For more details, see Working with topology diagrams.
- Content pane
- The content pane displays the topology diagram.
- Footer bar
You can highlight resources in the topology diagram by status, use the status icons at the bottom of the widget (
). The displayed status icons depend on those supported by the data set.The status icons behave as toggle buttons and you can enable and disable multiple statuses. For example, to highlight all resources that have a status of warning and critical, click and and resources with those statuses are highlighted.
Note: Depending on the data set and your configuration settings, the Topology widget can display multiple statuses for each node. Where multiple statuses are displayed, the status icon shown the top right corner denotes the nodes overall status and dictates to border color of the node. In edit mode, you can specify the number of status icons to display for each node.
Working with topology diagrams
You can configure a Topology diagram and specify the data it displays and the options that affect the appearance and behavior of nodes in the topology diagram.
Procedure
Extra Topology widget information
- Real-time data
- If the data provider sends dynamic updates, the Topology widget display updates to show real-time data. The Topology widget also responds to the Refresh Timer widget events and it then displays the latest data.
- Interaction
- Events - A Topology widget can publish events to which other widgets can subscribe and react accordingly. Similarly, Topology widgets can subscribe to events published by other widgets and update based on the published event information. An event is triggered when a user clicks a widget. The widget that is clicked publishes an event that sends the current context for the publishing widget. Widgets that subscribe to the clicked event may or may not update depending on the information that is contained in the event.
- Page Launch - In edit mode, an administrator can
configure the Topology widget to open a discrete Dashboard Application Services Hub dashboard or page, when
the widget is clicked.Note: The Page Launch function overrides the standard
clicked on
function. That is, if the widget is configured to launch another page or dashboard when it is clicked, then it does not create an event that sends data to other widgets.