![](/images/backgrounds/285925/hp-van-sdn-controller-software-products-administrators-guide-66988626x1.png)
Configurations and controller teams
When controllers are operating in a team, configuration changes on one active controller propagate to the other active controllers in the team.
3.7.1.1 About component keys
Each configuration component contains one or more component keys, each of which identify a configurable property of the component.
CAUTION: Inappropriate changes to key values can result in severely degraded system performance. For this reason, HP strongly recommends that managing the default key values be done only by experienced network administrators and programmers who have a strong understanding of SDN controller systems.
Information about each component key includes the current value, the default value, and a brief description. Where applicable, the range of suggested values is also included. Component key information
Information about the component keys are available from:
•The Configuration screen of the controller UI.
•The controller Configs REST API.
3.7.2Summary of configurable controller components3.7.2.1AdminREST Component
Component name com.hp.sdn.misc.AdminRESTComponent
Description
The AdminRestComponent provides parameters for internal communication between SDN components and the Admin REST API of the controller.
Component keys
Information about the configurable component keys, including descriptions, current values, suggested ranges, and default values are available from:
•The Configuration screen of the controller UI.
•The controller Configs REST API.
3.7.2.2Alert manager
Component name
com.hp.sdn.adm.alert.impl.AlertManager
Description
The AlertManager controls the quantity of alert data present on the system by periodically checking for alert data to be deleted based on the configured
Component keys
Information about the configurable component keys, including descriptions, current values, suggested ranges, and default values are available from:
•The Configuration screen of the controller UI.
•The controller Configs REST API.
26 Navigating the controller user interface