You view the impacts for an OSPF problem notification by clicking the Impact tab in the Notification Properties dialog box. The Impact tab lists all of the affected objects for the notification.
For example, Impact tab that shows the impacts for an OSPF problem lists the impacts diagnosed by Network Protocol Manager for OSPF for the OSPFNeighborRelationship Down problem shown in GUID-43BA24AB-5EC2-43B8-B7E2-7DB984F87DF8.html#GUID-43BA24AB-5EC2-43B8-B7E2-7DB984F87DF8___NPM_OSPF_USER_MAPS_84905.
For an OSPF impact notification, that is, a notification that identifies an OSPF object that is impacted by a problem, a Caused By tab (instead of the Impact tab) appears in the Notifications Properties dialog box. Caused By tab that shows the problem for an OSPF impact provides an example. The Caused By tab lists the problem that caused the notification.