If using huawei VCN server and DEC decoder. the correct way to add it should be as follows.
1.In the login page of the C/S client, enter the User name, Password and Server IP address, and then click log in, the Workspace tab page is displayed.
NOTE:
Set Server IP address to the IP address of the VCN.
2.In the Service Operation panel on the left of the Workspace tab page, double-click Video Wall, as shown in Figure 5-11.
Figure 5-11 Video wall
3.Add decoder. In the Decoder List panel on the Video Wall tab page, click to access the page for adding decoders.
NOTE:
A decoder can register with only C/S client. Therefore, before adding the decoder to the C/S client, ensure that the decoder is not added to other C/S clients. If the decoder has been added to another C/S client, the decoder cannot be added on this C/S client.
•Add a decoder, as shown in Figure 5-12.
Figure 5-12 Adding a decoder
a.Click .
b.Enter the decoder name, IP address, and port number.
NOTE:
◾Your name must be between 1 to 30 characters in length and not contain the following characters:<>';@"$*%)\/|?--
◾The default port number of the decoder is 9900.
c.Repeat 3.a through 3.b to add multiple decoders.
d.Enter the service user name and password for the decoder to register with the C/S client.
◾If the service user name and password for the decoder to register with the C/S client is different from the password, enter the decoder service user name and password and click Verify.
◾If the service user name and password for the decoder to register with the C/S client is the same as the password, enter the decoder service user name and password and click Batch Verify.
If the verification status is , verification succeeds.
As to full guide, you can refer to the following link.
https://support.huawei.com/enterprise/en/doc/EDOC1000145262?idPath=7881490|7919735|9864313|21782016|21818023