H3c-technologies H3C S9500E Series Switches Manuel d'utilisateur télécharger pdf (Page 82)

When the MPU works properly, the RUN LED (callout 6 in Figure 53) flashes, and the ALM LED (callout

7 in Figure 53) is o

ff. When the two LEDs are not in the states mentioned above, the MPU fails.

To troubleshoot the MPU:

1. Check that the power supply works properly. For more information, see "Power supply failure."

2. Press the RESET button of the MPU to reset the MPU. After the MPU is reset, check whether the

corresponding RUN LED is on.

3. Check whether the MPU is fully seated. You can unplug the MPU, plug it again, and make sure the

MPU is fully seated.

4. If the switch has empty MPU slots, plug the MPU into an empty MPU slot, and check that the MPU

can work properly.

5. If the ALM LED is on, the MPU reports alarms. Use the display alarm command to locate the failures,

and solve the failures.

6. If the failure still exists, contact the local agents or technical support engineers.

LPU failure

When the LPU works properly, the RUN LED (callout 8 in Figure 53) flashes, and the ALM LED (callout 9

in Figure 53) is o

ff. At the same time, the RUN LED on the LPU flashes, and the ALM LED on the LPU is off.

When these LEDs are not in the states mentioned above, the LPU fails.

To troubleshoot the LPU:

1. Check that the MPU works properly. For more information, see "MPU failure."

2. Use the display device command to check whether the software version is compatible with the LPU

in the current slot. If the software version is incompatible with the LPU, upgrade the software to a

compatible version.

3. Calculate the overall power consumption, and make sure your power supply can provide enough

power.

4. Check whether the LPU is fully seated. You can unplug the LPU, plug it again, and make sure the

LPU is fully seated.

5. If the switch has empty LPU slots, plug the LPU into an empty slot, and check whether the LPU can

work properly.

6. If the failure still exists, contact the local agents or technical support engineers.

Interface failure

The MPUs and LPUs have LINK LEDs that indicate the interface status. When the link of an interface is

present and working properly, its LINK LED is on.

If the LINK LED of an interface is off, the interface or the connecting cable may fail. To troubleshoot the

interface:

1. Make sure the MPU or LPU that provides the interface is working properly. For more information,

see "MPU failure" or "LPU failure."

2. Check the cable connection of the interface. For information about connecting a copper or fiber

Ethernet interface, see "Connecting the switch to the network."

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H3c-technologies H3C S9500E Series Switches Manuel d'utilisateur Page 82