Viewing the Device Health Monitor

You must be an Admin, Maintenance, or Security Analyst user to perform this procedure.

The device health monitor provides a detailed view of the health status of a firewall device. The device health monitor compiles device metrics and provides health status and trends of the device in an array of dashboards.

Procedure

Step 1	Choose System () > Health > Monitor. Use the Monitoring navigation pane to access device-specific health monitors.
Step 2	In the device list, click Expand() and Collapse () to expand and collapse the list of managed devices.
Step 3	View the Health Alerts for the device in the alert notification at the top of page, directly to the right of the device name. Hover your pointer over the Health Alerts to view the health summary of the device. The popup window shows a truncated summary of the top five health alerts. Click on the popup to open a detailed view of the health alert summary.
Step 4	You can configure the time range from the drop-down in the upper-right corner. The time range can reflect a period as short as the last hour (the default) or as long as two weeks. Select Custom from the drop-down to configure a custom start and end date. Click the refresh icon to set auto refresh to 5 minutes or to toggle off auto refresh.
Step 5	Click the Show the deployment details on top of the graph () icon for a deployment overlay on the trend graph, with respect to the selected time range. The icon indicates the number of deployments during the selected time-range. A vertical band indicates the deployment start and end time. In the case of multiple deployments, multiple bands/lines can appear. Click the icon on top of the dotted line to view the deployment details.
Step 6	The device monitor reports health and performance metrics in several predefined dashboards by default. The metrics dashboards include: Overview ― Highlights key metrics from the other predefined dashboards, including CPU, memory, interfaces, connection statistics; plus disk usage and critical process information. CPU ― CPU utilization, including the CPU usage by process and by physical cores. Memory ― Device memory utilization, including data plane and Snort memory usage. Interfaces ― Interface status and aggregate traffic statistics. Connections ― Connection statistics (such as elephant flows, active connections, peak connections, and so on) and NAT translation counts. Snort ― Statistics related to the Snort process. ASP Drops ― Statistics related to the Accelerated Security Path (ASP) performance and behavior. You can navigate through the various metrics dashboards by clicking on the labels. See Cisco Secure Firewall Threat Defense Health Metrics for a comprehensive list of the supported device metrics.
Step 7	Click the Add New Dashboard() to create a custom correlation dashboard by building your own variable set from the available metric groups; see Correlating Device Metrics.