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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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How Do I Handle System Startup Faults?

How Do I Handle System Startup Faults?

Common system startup faults are as follows:
  • Symptom 1: The switch cannot be powered on and the power indicator is off.

    Troubleshooting method:
    1. Check whether the power supply is normal, whether the power module works properly, and whether the power switch of the power module is turned on.
    2. If the switch passes the preceding checks, a hardware fault may occur. Contact technical support personnel.
  • Symptom 2: The switch is normally powered on, relevant indicators are steady on, but the BIOS menu is not displayed.

    Troubleshooting method: A hardware fault or software error may occur. Contact technical support personnel.

  • Symptom 3: The switch restarts repeatedly, the BIOS menu is displayed, but the switch fails to register.

    Troubleshooting method:
    1. Check whether the system software package is damaged. If the system displays error messages indicating that the size of the system software package is incorrect or CRC check fails, the system software package is damaged. You are advised to use the BIOS menu to upload the correct system software package again.

    2. Check whether the MPU successfully obtains the system software package. For details, see How Do I Handle an MPU's Failure to Obtain the System Software Package During a Startup.

    3. Check whether the memory is normal. Restart the switch, and press CTRL+T within 3 seconds when "Press CTRL+T for full memory test" is displayed to enter the BIOS memory test menu to test the system memory. If the test result shows that the memory is abnormal, contact technical support personnel.

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Updated: 2020-01-07

Document ID: EDOC1000060766

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