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Troubleshooting
This chapter describes how to troubleshoot your switch.
TIP:
Clean your switch periodically because the noncompliant operating environments of switches might
•
cause switch failures.
Verify the installation environments against the requirements in
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the switch operates in a compliant environment.
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Periodically perform the power-on test for the spare switches.
Troubleshooting methods
If your switch fails, you can use the following methods to troubleshoot the switch:
At the CLI, you can use the related commands to display the hardware information and locate the
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hardware failures.
The MPU provides the LEDs for the fans and cards. You can locate the failures according to the LED
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status on the MPU. For more information about the LED status on the MPU, see
The MPU or LPU of the switch provides the port status LEDs, with which you can detect port failures.
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For more information about the LED status on the LPU, see
If you cannot locate failures by following the guidelines in this chapter, contact HP Support. For more
information, see
Configuration terminal problems
If the configuration environment setup is correct, 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 operating correctly.
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The MPU is operating correctly.
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The console cable has been connected to the console port of the MPU.
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If no problem is found, examine the console cable for the following problems:
The console cable is connected to an incorrect serial interface (the serial interface in use is not the
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one set on the terminal). To solve this problem, select the correct serial interface.
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The console cable is broken. To solve this problem, replace the console cable.
"Support and other
resources."
"Preparing for
"Appendix C
45
installation." Make sure
"Appendix C
LEDs."
LEDs."
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Table of Contents
Troubleshooting
