Maintenance And Troubleshooting; Configuration Terminal Problems; No Terminal Display; Garbled Terminal Display - HP FlexFabric 7900 Series Installation Manual

Maintenance and troubleshooting

To avoid switch failures, maintain the switch as follows:
Clean your switch periodically.
•
Make sure the switch operates in a compliant environment.
•
Verify the installation environments against the requirements in
•
• Periodically perform the power-on test for the spare switches.
When the switch fails, you can locate the failures by using related display commands or by LEDs.
• Use display commands to examine the configuration for configuration errors or examine statistics
for exceptions. If any configuration error is found, re-configure the switch or restore the
factory-default settings. For more information, see HP FlexFabric 7900 Switch Series Fundamentals
Configuration Guide.
Examine LEDs to locate the faulty component. For more information about the LEDs, see
•
C Ports and
If you cannot locate failures by following the guidelines in this chapter, contact the local agents or
technical support engineers.

Configuration terminal problems

If the configuration environment is set up correctly, the configuration terminal displays boot information
when the switch is powered on. If the setup is incorrect, the configuration terminal displays garbled text
or does not display anything.

No terminal display

If the configuration terminal displays nothing when the switch is powered on, verify the following items:
The power supply system is supplying power to the switch.
•
The switch is operating correctly.
•
• The console cable has connected the console port of the switch and the serial interface of the
configuration terminal correctly.
The configuration terminal settings are correct.
•
The console cable is not broken.
•

Garbled terminal display

If the terminal display is garbled, verify that the configuration terminal settings and the switch console
port settings are the same.
The default setting for the switch console port is as follows:
• Baud rate—9600
Data bits—8
•
LEDs."
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"Preparing for installation."
"Appendix