Troubleshooting; Troubleshooting Methods - H3C S7500E Series Installation Manual

Troubleshooting

This chapter describes how to troubleshoot your S7500E switch:

Troubleshooting methods

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Troubleshooting the system
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Troubleshooting the power supply system
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• Troubleshooting the fans
Troubleshooting the SRPUs
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Troubleshooting the LPUs
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Troubleshooting interfaces
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Troubleshooting CF cards
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• Troubleshooting the PoE system
Technical support
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Troubleshooting methods
When an S7500E switch fails, you can use the following methods to troubleshoot the switch:
Command line interface (CLI) provided by the switch. At the CLI, you can use the related commands
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to display the hardware information, and locate the hardware failures. For more information about
the CLI, see the chapter "Hardware management and maintenance."
• The switching and routing processing unit (SRPU) provides the LEDs for the power supply system,
fans, SRPUs, line processing units (LPUs), CF cards, and ports. You can locate the failures according
to the LED status on the SRPU. For more information about the LED status on the SRPU, see the
chapter "Appendix C LEDs."
The LPU of the switch provides the port status LEDs, with which you can detect port failures. For more
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information about the LED status on the LPU, see the chapter "Appendix C LEDs."
NOTE:
If you cannot locate failures by following the guidelines in this chapter, contact the local agents or
technical support engineers. For more information, see
TIP:
Clean your switch periodically because the noncompliant operating environments of switches may cause
switch failures. At the same time, check the installation environments against the requirements in the
chapter "Preparing for installation." Make sure the switch operates in a proper environment. Additionally,
periodically perform the power-on test for the spare switches.
"Technical support."
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