Monitoring the Health and Status of Your Infrastructure : Active alerts
  
Active alerts
The Home page and all Object and Custom Views pages support quick access to the Active Alerts status for the number of alerts as they occur in real time, and allowing you to drill down to the Alerts Manager by clicking the number beneath a specific alert icon. If, for example, you click the number of Minor alerts, only Minor alerts are displayed in the Alerts Manager.
The Active Alerts banner provides counts of the on-going metric threshold violations occurring in your network that were defined in the Alert Profiles and Default Thresholds pages. The alert counts on the Active Alerts banner are instantaneous counts and are independent of the respective page’s Time Range selector. You can click the active alert counts to launch to the Alert Manager and filter to the specific severity.
Additionally, the Home page and all Object and Custom Views pages have a Launch Alerts Manager link.
The Launch Alerts Manager link takes you to the Alerts Manager, displaying all the active alerts from Critical to Minor in the First Seen tab.
For more information about alerts, see Viewing Alerts.