Troubleshooting; Troubleshooting Methods; Configuration Terminal Issues; No Terminal Display - H3C SecPath M9000-AI-E8 Installation Manual

Troubleshooting

This chapter describes how to troubleshoot your gateway.
TIP:
Clean your gateway periodically because noncompliant operating environments might cause
gateway failures. At the same time, verify the installation environments against the requirements in
"Preparing for installation." Make sure the gateway operates in a compliant environment.
Additionally, periodically perform the power-on test for the spare gateways.

Troubleshooting methods

To troubleshoot the gateway, use the following methods:
•
The supervisor engine module (SEM) provides LEDs for the fan trays, power supplies, and
modules. You can locate the failures according to the LED status on the SEM. For more
information about the LED status on the SEM, see "Appendix C LEDs."
•
The SEMs and interface modules of the gateway provide LEDs for each port, with which you
can detect port failures. For more information about the port status LEDs on the SEMs and
interface modules, see "Appendix C LEDs."
•
At the CLI, you can use the related commands to display hardware information, locate
hardware failures, and examine statistics for exceptions. If any configuration error is found,
re-configure the gateway or restore the factory-default settings.
If you cannot locate failures by following the guidelines in this chapter, contact H3C Support.

Configuration terminal issues

If the configuration environment setup is correct, the configuration terminal displays boot information
when the gateway is powered on. If the setup is incorrect, the configuration terminal displays garbled
text or does not display anything.

No terminal display

Symptom
The configuration terminal displays nothing when the gateway is powered on.
Solution
To resolve the issue:
1. Verify that the power supply system is operating correctly.
2. Verify that the SEM is operating correctly.
3. Verify that the console cable has been connected to the console port on the SEM.
4. Verify that the console cable has been connected to the correct serial interface on the
configuration terminal.
5. Verify that the console cable is in good condition and operates correctly.
6. If the issue persists, contact H3C Support.
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