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INSTALLATION INSTRUCTIONS
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FS016
For Technical Support: www.fs.com/service.html
Chapter 7 Maintenance and Troubleshooting
7.1 Loading Failure Processing
After loading fails, the system will keep running in the original version. At this time, users should re-check if physical port
connections 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. For example, when using
TFTP protocol, we enter incorrect IP addresses of Server and Switch, name of loading software, do not specify the correct
working path of correct TFTP server and so on; if physical connections are good, and there are no input errors in the loading
process but the loading fails finally, please contact agents for help.
7.2 User Password Lost
If system password is lost or forgotten, the following methods can be used to reset password.
• Enter uBoot operation mode; see Chapter 5 for how to enter.
• Input boot_flash_nopass command to start system in uBoot mode.
After using boot_flash_nopass command, system will clear up the startup-config files; before
starting this operation, the startup-config files will be stored in flash:/startup-config.conf.old file.
7.3 Power System Troubleshooting
Switch can judge if its power system is faulty according to the PWR indicator on the front panel. When power system works
normally, the PWR indicator shall always keep lighting; when the PWR indicator is off, please check if the power line of switch is
connected correctly or EPS of switch matches the power required by switch.
7.4 Configuration System Troubleshooting
After the switch is powered on, if system is normal, the startup information will be displayed on the configuration terminal; If
the configuration system is faulty, the configuration terminal may display no information or hashes.
No Information on the Terminal
After power-on, if no display information on configuration terminal appears, please check whether the power is normal or the
cable of configuration port (Console) is properly connected.
If no problem has been found after the above checks, it is possible that configuration cable is faulty or the parameter setting of
terminal (such as super terminal) is incorrect, please check accordingly.
Troubleshooting for the terminal displaying hashes.
If the configuration terminal displays hashes, it is probable that the parameter setting of terminal (such as super terminal) is
incorrect. Please confirm the parameter setting of terminal (such as super terminal): baud rate: 115200, data bit: 8, parity: no,
stop bit: 1, flow control: NA, selecting terminal emulation: VT100.
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