1. We chose Huawei S6720S-26Q-LI-24S-AC switches for testing.
2. Use console line to connect computer and the CON port of switch
3. Use CRT to log in to the switch
4. Use "display transceiver verbose" command, and the following information will be obtained. 01 port and 02 port, two optical modules are extracted as examples:
5. Insert the optical module, there will be no alarm immediately. After waiting for a few minutes, if the switch pops up an alarm, it will be displayed as follows