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6
SWITCH MONITORING AND
MAINTENANCE
Monitoring the Switch Although the Switch 8800 Family has undergone a comprehensive factory test
before delivery, an improper installation may cause problems. This chapter
describes how to troubleshoot the Switch 8800 Family.
Troubleshooting Console
Terminal
If the system running properly, when you power on the switch, you will see the
boot information on the console terminal. If the switch is configured incorrectly,
the console terminal may display illegible output or nothing at all.
If the console does not display anything after you power on the switch, check that
the:
■ Power system is working normally.
■ Fabric is working normally.
■ Console cable is connected to the console port on the fabric.
If you find no issues with these items, the problem is most likely one of the
following:
■ The console cable is not connected to the right serial port. That is, the port in
use is not the one configured on the terminal.
■ There are console terminal parameter errors. (According to the parameter
setting requirements, you should set the baud rate to 9600, data bits to 8,
parity to None, stop bits to 1, flow control to None, and select VT100 as your
terminal emulation protocol.)
■ The console cable is not in good condition.
If the terminal displays illegible characters, it is most likely a console terminal
setting error. Check that you have set the baud rate to 9600, data bits to 8, parity
to None, stop bits to 1, flow control to None, and select VT100 as your terminal
emulation protocol.
Troubleshooting the PSU
Table 75 LEDs on the PSU
LED Description
INPUT It stays ON if the power input is normal and the PSU switch is at the ON position.
It stays OFF if the power input has failed or if there is no power input at all.
OUTPUT It stays ON if the power output is normal, otherwise it is OFF.
FAIL It stays ON if the PSU has failed, otherwise it is OFF.