The customer uses 10.77.77.77, the default IP address of the FC switch, to log in to the GUI and find that link indicators of some ports are alternately on and off. This may be caused by unstable links between blade servers and switch boards to which these ports correspond.
Use the serial port to log in to the FC switch CLI and run ipAddrSet to change the IP address of the FC switch. Use the new IP address to log in to the GUI of the FC switch and check that the link indicator of the port is continuously on and the link is stable.
Run ipAddrShow to view the IP address.
There are two T8000s onsite and each one is configured with one switch board. The two switch boards are connected through a network cable between base ports. The default IP addresses of FC switches are both 10.77.77.77. When the customer logs in to the GUI of one FC switch, the GUI is actually switched over between two switches. However, the two GUIs display different information, which makes link indicators of some ports are alternately on and off.