13
Troubleshooting
After loading fails, the system will keep running in the original version. At this time, users should
re-check if physical port connection are good firstly. If some ports are not connected, then
re-connect them to ensure that physical connections are correct, and begin re-loading. If physical
connections are correct, then check the loading process information displayed on the super terminal
to verify if there are input errors. If there are input errors, correct them and re-load.
Loading Failure Troubleshooting
If system password is lost or forgotten, the following method can be used to reset the password:
1. Connect the console port of the switch to the computer through the console cable.
2. Press ctrl + b to enter the Uboot mode.
3. Start the system with an empty configuration file with no password.
4. Bootrom#boot_flash_nopass
5. Bootrom#Do you want to revert to the default config file?[Y|N|E]:
User Password Lost Troubleshooting
Power System Troubleshooting
According to the power indicator on the front panel, the switches can be used to determine whether
the power system of the switch is faulty. If the power system is working normally,the power indicators
should remain lit. If the power indicator is unlit, the power supply system is not working. Please check
the following:
1. Whether the switch power cable is connected correctly.
2. Whether the power supply of the switch matches the required power supply.
NOTE:
Forgetting your username and password and restoring them through console port
may cause configuration loss and business interruption. Please remember your username
and password.
EN
