At least one BlackBerry® MDS Connection Service in your organization's BlackBerry Domain must act as a central push server. Central push servers receive content push requests from server-side applications that are located on an application server or on a web server. Central push servers also manage push requests and send application data and application updates to BlackBerry device applications.
If a BlackBerry Domain includes one BlackBerry MDS Connection Service that is version 5.0 or later, by default, that BlackBerry MDS Connection Service is the central push server. If two BlackBerry MDS Connection Service instances (that are version 5.0 or later) exist in a BlackBerry Domain, by default, both instances are central push servers. If more than two BlackBerry MDS Connection Service instances (that are version 5.0 or later) exist in a BlackBerry Domain, the first two instances that start are central push servers. You can configure any BlackBerry MDS Connection Service in your organization's BlackBerry Domain to act as a central push server. If a BlackBerry MDS Connection Service in your organization's environment is earlier than version 5.0, it is not designated as a central push server automatically when it starts.
- In the BlackBerry Administration Service, in the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
- Click the instance that you want to change.
- Click Edit instance.
- In the General section, in the Is centralized push server drop-down list, click Yes.
- Click Save all.