3.4.3 Collapsing the SDN user window
To collapse the SDN User window, do one of the following:
•In the SDN User window, click 
.
•From the top banner, click 
.
3.4.4Logging out of the controller
To log out of the controller UI:
•From the SDN User window, select Logout.
3.5Alerts screen
3.5.1 About alerts
Alerts give notification of events that affect controller operation, and in some cases indicate that some action is needed to correct a condition.
Alerts and controller teams
When controllers are operating in a team, alerts generated by any team member are visible in the Alerts screen for all active team members.
Active, unacknowledged alerts
By default, alerts are in an unacknowledged, active state. An alert must be in an active state to appear in the following places:
•The alert notification counter
•The Alerts as of today window
3.5.2About alert policies
The values for the AlertManager component keys determine the alert
Key | Description |
|
|
| |
trim.alert.age | Specifies the number of days an alert remains in persistent storage and remains displayed | |
| on the Alerts screen. |
|
| Data type | A number from 1 through 31 |
| Default value | 14 |
|
| |
trim.enabled | When true, specifies that the controller deletes alerts that have exceeded the | |
| trim.alert.age limit. | |
| Default value | true |
|
| |
trim.frequency | Specifies how often, in hours, the controller is to delete alerts that have exceeded the | |
| trim.alert.age limit. | |
| Data type | A number from 8 through 168 |
| Default value | 24 |
| Example | Enter 8 to specify that the controller delete |
|
| eight hours. |
|
|
|
3.5 Alerts screen 19