The Pending Elements list contains three columns that provide the following information for a pending element:
Element Name: Name of the device (probe instance) for which the probing of routing topology information did not complete successfully. The name contains the assigned display name of the device.
Element Type: Name of the probe (device type) that probes the device in the Element Name field.
Discovery Error: Comment that describes why the device in the Element Name field is on the Pending Elements list.
To see all of the text that is associated with a particular element name, element type, or discovery error, position the mouse pointer over the element name, element type, or discovery error.