1. In the BlackBerry® Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want to change.
3. Click Edit instance.
4. On the General tab, in the Flow control section, in the Maximum data amount permitted per connection field, type a number, in KB.
5. Click Save all.

You can specify how long a BlackBerry® MDS Connection Service waits for acknowledgment from a BlackBerry device before it deletes pending content for the BlackBerry device.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want to specify the content timeout limit for.
3. Click Edit instance.
4. On the General tab, in the Flow control section, in the Flow control timeout field, type a number, in milliseconds.
5. Click Save all.

Before you begin: Verify that your system memory supports scalable socket connections.

1. In the BlackBerry® Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want to permit scalable socket connections on.
3. Click Edit instance.
4. On the General tab, in the Socket connection settings section, in the Use scalable sockets options list, click Yes.
5. Click Save all.

You can specify the maximum number of threads that a BlackBerry® MDS Connection Service can process at the same time.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want to specify the thread pool size for.
3. Click Edit instance.
4. On the General tab, in the Socket connection settings section, in the Thread pool size field, type a number between 100 and 1000.
5. Click Save all.

You can specify the maximum number of scalable socket connections that can be open at the same time between BlackBerry® devices and a BlackBerry MDS Connection Service.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want to specify the maximum number of scalable socket connections for.
3. Click Edit instance.
4. On the General tab, in the Socket connection settings section, in the Use scalable sockets options, select the Yes option.
5. In the Maximum simultaneous scalable sockets field, type a number between 100 and 3500. By default, the maximum number of scalable socket connections is 2000.
6. Click Save all.

By default, the BlackBerry® MDS Connection Service 5.0 SP2 or later uses scalable HTTP, which permits the BlackBerry MDS Connection Service to use fewer system resources and to establish more socket connections at one time than previous versions of the BlackBerry MDS Connection Service. When a BlackBerry MDS Connection Service uses scalable HTTP, it streams data to and from BlackBerry devices instead of storing and forwarding the data. If you want a BlackBerry MDS Connection Service to process data as it did in previous versions of the BlackBerry® Enterprise Server, you can prevent a BlackBerry MDS Connection Service from using scalable HTTP.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want to prevent from using scalable HTTP.
3. Click Edit instance.
4. On the General tab, in the Socket connection settings section, in the Use scalable HTTP drop-down list, click No.
5. Click Save all.

You can specify the port number that the web server listens on for HTTP requests and HTTPS requests from server-side push applications. You should change the default port parameters only if a port conflict exists with another service on the same computer.

1. In the BlackBerry® Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want to specify the port number for.
3. Click Edit instance.
4. On the General tab, in the Connection section, perform one of the following actions:
   • To specify the port for HTTP requests, in the Web server listen port field, type the port number.
   • To specify the port for HTTPS requests, in the Web server SSL listen port field, type the port number.
5. Click Save all.

After you finish:

• Restart the BlackBerry MDS Connection Service.
• Notify your organization's push application developers that you changed the port number that the web server listens on for push application requests.

You can specify how often a BlackBerry® MDS Connection Service polls the BlackBerry Configuration Database for changes to the administration settings for the BlackBerry MDS Connection Service and BlackBerry Collaboration Service. The default interval is 5 minutes.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > MDS Connection Service.
2. Click the instance that you want change.
3. Click Edit instance.
4. On the General tab, in the Database section, in the Database admin configuration cycle timer field, type a time, in minutes.
5. Click Save all.