Lpu failure, Interface failure – H3C Technologies H3C SR8800 User Manual
Page 78
68
When the MPU operates correctly, the RUN LED (callout 6 in
) flashes, and the ALM LED (callout
7 in
) is off. When the RUN LED is off, the MPU fails.
To troubleshoot the MPU:
1.
Verify that the power module is operating correctly. For more information, see "
2.
Press the RESET button of the MPU to reset the MPU. After the MPU is reset, verify that the
corresponding RUN LED is on.
3.
Verify that the MPU is fully seated. You can unplug the MPU, plug it again, and make sure the MPU
is fully seated.
4.
If the router has empty MPU slots, plug the MPU into an empty MPU slot, and verify that the MPU
can operate correctly.
5.
If the ALM LED is on, the MPU reports alarms. Use the specific 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 operates correctly, the RUN LED (callout 8 in
) flashes, and the ALM LED (callout
9 in
) is off. At the same time, the RUN LED on the LPU flashes, and the ALM LED on the LPU is
off.
When the RUN LED is off, the LPU fails.
To troubleshoot the LPU:
1.
Verify that the MPU is operating correctly. For more information, see "
."
2.
Use the specific command to verify that 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 module can provide enough
power.
4.
Verify that the LPU is fully seated. You can unplug the LPU, plug it again, and make sure the LPU is
fully seated.
5.
If the router has empty LPU slots, plug the LPU into an empty slot, and verify that the LPU can
operate correctly.
6.
If the failure still exists, contact the local agents or technical support engineers.
Interface failure
Both the MPU and LPU provide the LINK LEDs indicating the interface status. When the link of an
interface is present and is operating correctly, the corresponding LINK LED is on.
If the LINK LED of an interface is off, the interface or the connecting cable might fail.
To troubleshoot the interface:
1.
Verify that the MPU or LPU where the interface resides is operating correctly. For more information,
see "