Contents

Troubleshooting· 1

Troubleshooting methods· 1

Configuration terminal issues· 1

No terminal display· 1

Garbled terminal display· 2

Power supply failure· 2

Fan tray failure· 3

SEM failure· 4

Switching fabric module failure· 4

Interface switch module failure· 4

Interface failure· 5

 

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.

Garbled terminal display

Symptom

Terminal display is garbled.

Solution

To resolve the issue:

1.     Make sure the configuration terminal is configured with the same settings as the console port:

¡     Baud rate—9600 bps.

¡     Data bits—8.

¡     Parity—None.

¡     Stop bits—1.

¡     Flow control—None.

¡     Terminal type—VT100.

If you modify the settings for the console port of the gateway, configure the same settings for the configuration terminal.

2.     If the issue persists, contact H3C Support.

Power supply failure

Symptom

·     The power supply status LEDs on the SEM indicate a power supply failure.

¡     M9000-AI-E8 gateway—The PWR OK LED on the SEM is off and the PWR FAIL LED is on.

If the power supplies on an M9000-AI-E8 gateway are operating correctly, the PWR OK LED on the SEM is on and the PWR FAIL LED is off.

¡     M9000-AI-E16 gateway—The PWR LED on the SEM is steady red.

If the power supplies on an M9000-AI-E16 gateway are operating correctly, the PWR LED on the SEM is steady green.

·     Each power supply provides input and output status LEDs to indicate its power input and output status. If the input or output status LED is off or not steady green, the power supply is faulty,

Solution

To resolve the issue:

1.     If the input status LED is off, the power supply has transitioned to self-protection state. Examine the power supply for no power input or low power input voltage issue.

2.     If the output status LED is orange, the power supply has transitioned to the over-temperature protection state. Examine the cooling system for inadequate ventilation, and make sure every empty slot is covered by a blank filler panel.

3.     If the output status LED is red, the power supply has transitioned to a self-protection state because of a power supplying issue. Examine the power supply for output short circuit, output overcurrent, output overvoltage, input undervoltage, or remote disconnection.

4.     Examine the power cord connections. If a power cord is loose, reinstall the power cord. If a power cord is broken, replace it.

5.     Examine the power supply installation. If the power supply is not fully seated, reinstall the power supply to ensure that it has a close contact with the backplane of the gateway.

6.     Verify that the power supply system is operating correctly and provides a normal voltage. Make sure the power supplies can provide the maximum power required by the system.

7.     Install the power supply into another power supply slot and identify whether the power supply can operate correctly. If the power supply operates correctly, the original power supply slot might be damaged. If the power supply does not operate correctly, go to the next step.

8.     Install a new power supply of the same model into the same slot, and connect it to the same power input end. If the new power supply can operate correctly, the old power supply has failed. You must replace the old power supply.

9.     If the issue persists, contact H3C Support.

 

NOTE: After you turn off the power feed to a power supply, the input and output status LEDs on the power supply will stay on for a while.

 

Fan tray failure

WARNING! The fan trays are hot swappable. Ensure electricity safety when you hot swap a fan tray.

 

CAUTION: ·     To ensure adequate heat dissipation, make sure all fan trays are present when the gateway is operating. If a fan tray fails, keep the failed fan tray in place until a new fan tray is ready for replacement. ·     Before powering on the gateway, make sure all fan tray slots are installed with fan trays correctly.

 

Symptom

·     The fan tray status LEDs on the SEM indicate a fan tray failure.

¡     M9000-AI-E8 gateway—The FAN OK LED on the SEM is off and the FAN FAIL LED is on.

If the fan trays on an M9000-AI-E8 gateway are operating correctly, the FAN OK LED on the SEM is on and the FAN FAIL LED is off.

¡     M9000-AI-E16 gateway—The FAN LED on the SEM is steady red.

If the fan trays on an M9000-AI-E16 gateway are operating correctly, the FAN LED on the SEM is steady green

·     The LEDs on a fan tray indicate that the fan tray is faulty.

¡     M9000-AI-E8 gateway—The OK LED is off and FAIL LED is on.

When a fan tray is operating correctly, its OK LED is on and FAIL LED is off.

¡     M9000-AI-E16 gateway—The OK/FAIL LED is steady red.

When a fan tray is operating correctly, its OK/FAIL LED is steady green.

Solution

To resolve the issue:

1.     If both LEDs are off, verify that the power supplies are operating correctly. For more information, see "Power supply failure."

2.     Verify that the air inlet and outlet vents of the gateway are not blocked. If they are blocked, clean them to keep good ventilation. If you install air filters, remove the air filters, clean them, and install them again.

3.     Verify that the fan tray is fully seated. You can remove the fan tray and then install it again.

4.     Verify that the empty interface module slots and power supply slots are installed with filler panels. If not, install filler panels for them to guarantee good ventilation.

5.     If the issue persists, contact H3C Support.

SEM failure

Symptom

·     M9000-AI-E8—The RUN and ALM LEDs for a SEM are steady on.

 

NOTE: The RUN and ALM LEDs are also steady on when the SEM is starting up.

 

If a SEM is operating correctly, its RUN LED flashes and ALM LED is off.

·     M9000-AI-E16—The status LED for a SEM is steady red.

If a SEM is operating correctly, its status LED is slow flashing green.

Solution

To resolve the issue:

1.     If all LEDs are off, verify that the power supplies operate correctly. For more information, see "Power supply failure."

2.     Verify that the SEM is fully seated. You can remove the SEM and then install it again, and make sure the SEM is fully seated.

3.     Press the RESET button of the SEM to reset the SEM. After the SEM is reset, verify that the ACTIVE LED is on.

4.     If the issue persists, contact H3C Support.

Switching fabric module failure

Symptom

The RUN/ALM LED for a switching fabric module is steady red.

Solution

To resolve the issue:

1.     Verify that the SEM is operating correctly. For more information, see "SEM failure."

2.     Verify that the system software version is compatible with the switching fabric module. If not compatible, upgrade the software to a compatible version.

3.     Calculate the total power consumption, and make sure your power supplies can provide enough power. For more information, see "Appendix B  Technical specifications."

4.     If the issue persists, contact H3C Support.

Interface switch module failure

Symptom

The RUN and ALM LEDs for an interface switch module are steady on.

 

NOTE: The RUN and ALM LEDs are also steady on when the interface switch module is starting up

 

Solution

To resolve the issue:

1.     Verify that the SEM is operating correctly. For more information, see "SEM failure."

2.     Verify that the system software version is compatible with interface switch module. If not compatible, upgrade the software to a compatible version.

3.     Calculate the total power consumption, and make sure your power supplies can provide enough power. For more information, see "Appendix B  Technical specifications."

4.     Remove and reinstall the interface switch module to make sure it is installed securely. For the interface switch module installation procedure, see "Installing the gateway."

5.     If the gateway has empty card slots, insert the module into an empty slot and identify whether the module can operate correctly. If the module operates correctly, the original interface switch module slot is damaged.

6.     If the issue persists, contact H3C Support.

Interface failure

Symptom

The LED of an interface connected to the network is off.

Solution

To resolve the issue:

1.     Verify that the SEM, interface module, or service module where the interface resides operates correctly. For more information, see "SEM failure" or "Switching fabric module failure."

2.     Verify that the cable is in good condition. Use the cable to connect two interfaces of the same type that operate correctly. If the LEDs of the two interfaces are on, the cable is in good condition. If they are not on, the cable has failed. Use a compliant cable to connect the interface. For more information about the compliant cables, see "Appendix D  Cables."

3.     If the interface uses a transceiver module, make sure the interface type is compatible with the transceiver. For more information, see "Appendix A  FRUs and compatibility matrixes."

4.     If the interface uses a transceiver, make sure the current transceiver operates correctly by replacing a normal transceiver.

5.     Verify that the speed and duplex settings of the interfaces of a link are the same. Make sure two interfaces can work together.

6.     If the issue persists, contact H3C Support.