Why I failed to Enable the CAU Function of the U2000 on my Computer?

Issue Description

I bought a Huawei MA5683T configure with one GPFD  C+, when I install U2000 server on computer, the U2000 client is installed remotely by using the computer according to the installation guide. After http://server IP address:8080/cau is entered in the address box, the web page cannot be displayed. The web page for client installation cannot be displayed on the local server, either. 

Alarm Information

The page cannot be displayed. 

The page you are looking for is currently unavailable. 

Handling Process

Check and confirm that the following conditions are met according to the installation guide. 

The default browser of Windows OS is Internet Explorer 6.0 or 7.0, and the proxy server is not set.

2. The U2000 server and CAU process are started up in the normal state. 

The U2000 server successfully communicates with the U2000 client and the bidirectional server-client ping operation is successful.

4. The port (port ID: 8080) on the U2000 server for installing the U2000 client in the network mode is enabled.

5. If the U2000 client has been installed in the network mode previously, uninstall the U2000 client and ensure that the .cau file in the %USERPROFILE% directory (such as C:\Documents and Settings\Administrator) is deleted. 

6. In addition to meeting the requirement for installation partition sizes, at least 900 MB space is available in disk C for data buffer. 

The CAU function, however, is still disabled. With the assistance of R&D engineers, it is confirmed that the CAU function is disabled by default when the U2000 is installed on a computer with smaller than 3 GB memory. Under this condition, the CAU function can be enabled only manually. To manually enable the CAU function, copy all files in the U2000\common\Tomcat\webapps\not_support\cau directory to the U2000\common\Tomcat\webapps\cau directory without restarting the system. Then, the CAU function is enabled immediately. 

Root Cause

The possible cause is that the port is being used or the CAU function is disabled. 

Suggestions

It is recommended that the limitation should be described in the installation guide. Engineers will encounter this problem after installing the U2000 because the computer memory of Huawei is smaller than 2 GB.