[XGS3-24042] Why I can not use copper to link successfully established on port 21 ~ 24 with RJ-45 cable?


Solution:
Because the XGS3-24042 is 1000Base-X force mode on port 21 ~ 24 in default value. In such circumstance, we would suggest to pre-setup the port(s) that is going to attach 10/100/1000Base-T copper in the CLI, please refer to example as below.
Example:
Set Port 21 ~ 24 that support 10/100/1000Base-T copper.

XGS3-24042(config)#interface ethernet 1/0/21-24  
XGS3-24042(config-if-port-range)#speed auto
XGS3-24042(config-if-port-range)#media-type copper

 

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