Filtering objects on the topology map

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To limit the number of nodes displayed on the topology map, you can use the following functions:

• Filtering by registered events

  You can configure the topology map to show the nodes whose information is saved in events associated with the selected nodes.

  The capability to filter by event is available if no more than 200 nodes on the topology map are selected.

  You can use the following methods to filter by event:

  • Initial filtering by event. This method is applied if you need to filter objects based on events associated only with the selected nodes.
  • Additional filtering by event. This method is applied if initial filtering by event has already been performed and you need to also filter events associated with additionally selected nodes from the list of nodes displayed on the topology map.

  To display nodes using initial filtering by event on the topology map:

  1. On the topology map, select one or multiple nodes.

     To select multiple nodes, perform one of the following actions:

     • Hold down the SHIFT key and use your mouse to select a rectangular area containing the relevant objects.
     • Hold down the CTRL key and use your mouse to select the relevant objects.

     The details area appears in the right part of the web interface window. The details area shows the total number of selected nodes while also showing the quantitative distribution of selected objects by type.

  2. If the selected objects belong to different types or categories of devices, you can exclude certain types of objects (for example, nodes of unmanaged switches) or categories (for example, PLC). To do so, clear the check box next to the name of the category or type.
  3. Click the Filter by events button.

  The topology map will display only those nodes whose information is contained in events associated with the selected nodes. The toolbar located above the map will show a list containing the IDs of events (IDs are listed in the order in which their associated events were detected).

  To add nodes to the objects displayed on the topology map by using additional filtering by event:

  1. Make sure that initial filtering by event has been performed. To do so, check for the availability of a list containing event IDs in the toolbar located above the topology map.
  2. Among the nodes displayed on the topology map, select the nodes for which you want to add associated events to the filter.

     The details area appears in the right part of the web interface window.

  3. Click the Add filtering for events button.

  The topology map additionally displays those nodes whose information is contained in events associated with the selected nodes. The IDs of detected events are added to the list containing IDs in the toolbar.

• Filtering by device status
  1. In the toolbar located above the topology map, open the Device statuses drop-down list.

     You will see a list containing the names of statuses for known devices (Unauthorized, Authorized, Archived), and the Unmanaged switch status for unmanaged switches.

  2. In the drop-down list, select the check boxes for the statuses of devices that need to be displayed on the topology map.
  3. Click OK.

  The topology map will display only those nodes that have the selected statuses.

• Filtering by device security state
  1. In the toolbar located above the topology map, open the Device states drop-down list.

     You will see a list containing the names of security states for devices (OK, Warning, Critical).

  2. In the drop-down list, select the check boxes for the security states of devices that need to be displayed on the topology map.
  3. Click OK.

  The topology map will display only those nodes that represent devices with the selected security states.

• Filtering by device category
  1. In the toolbar located above the topology map, open the Device categories drop-down list.

     You will see a list containing the names of categories for known devices, as well as an individual category for unmanaged switches.

  2. In the drop-down list, select the check boxes for the categories of devices that need to be displayed on the topology map.
  3. Click OK.

  The topology map will display only those nodes that represent the selected categories of devices.

• Filtering by VLAN ID in topology settings
  1. In the toolbar located above the topology map, open the VLAN ID drop-down list.

     You will see a window containing a field for entering VLAN IDs.

  2. Enter one or more VLAN IDs of devices that need to be displayed on the topology map.

     You can specify several identifiers separated by comma or as a range (for example: 1, 2, 4-6, 8).

  3. Click OK.

  The topology map will display only those nodes whose topology settings include ports with the defined VLAN IDs.

• Enabling and disabling the display of nodes that do not have links to other nodes

  By default, the topology map displays all nodes regardless of whether they have links to other nodes. If necessary, you can disable the display of all nodes that do not have links with other nodes on the topology map.

  To enable or disable the display of nodes that do not have links to other nodes:

  Use the Display unlinked nodes toggle button in the toolbar located above the topology map.

• Resetting the filter settings

  You can reset the defined node filtering settings to their default state.

  To reset the defined filter settings on the topology map:

  In the toolbar located above the topology map, click the Default filter button (this button is displayed if filter settings have been defined).