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An LPU Board Failed to be Registered Due to the Failure of Its 250M Clock

Publication Date:  2013-09-27 Views:  34 Downloads:  0
Issue Description
An LPU board in slot 3 failed to be registered.
Handling Process

Huawei completed the following steps to diagnose the problem:

1. Upgraded board BootROM and EPLD logic. The problem persisted.

2. Queried logs. The SM chip frequently reported abnormal interruption.

Aug 15 2008 15:12:58 mde-env-ne40e %%01SRM/4/SMCHECK(l): Slot3 SM monitor check result: 

     bit 5 -> MMI_INT_FLAG : 0x0008 @level 1 

          bit 6 -> OSI_INT_FLAG : 0x8000  

     bit 14 -> OSE_INT_FLAG : 0x8000 !

Aug 15 2008 15:12:58 mde-env-ne40e %%01SRM/4/SMCHECK(l): Slot4 SM monitor check result: 

     bit 14 -> OSE_INT_FLAG : 0x8000 !

Aug 15 2008 15:12:58 mde-env-ne40e %%01PHY/5/PHY(l):-Slot=3; GigabitEthernet3/0/8: this SFP/XFP is present.

Aug 15 2008 15:12:59 mde-env-ne40e %%01SRM/4/SMCHECK(l): Slot3 SM monitor check result: 

     bit 5 -> MMI_INT_FLAG : 0x0008 @level 1 

          bit 6 -> OSI_INT_FLAG : 0x8000 !

#Aug 15 15:12:59 2008 mde-env-ne40e ENTMIB/4/TRAP:1.3.6.1.2.1.47.2.0.1 Entity MIB change.

Aug 15 2008 15:12:59 mde-env-ne40e %%01SRM/3/LPURESET(l): LPU3 reset, the reason is: LPU report Rereset SM error, and reset lpu!

 

Aug 15 2008 15:12:58 mde-env-ne40e %%01SRM/4/SMCHECK(l): Slot3 SM monitor check result: 

     bit 5 -> MMI_INT_FLAG : 0x0008 @level 1 

          bit 6 -> OSI_INT_FLAG : 0x8000  

     bit 14 -> OSE_INT_FLAG : 0x8000 !

Aug 15 2008 15:12:58 mde-env-ne40e %%01SRM/4/SMCHECK(l): Slot4 SM monitor check result: 

     bit 14 -> OSE_INT_FLAG : 0x8000 !

Aug 15 2008 15:12:58 mde-env-ne40e %%01PHY/5/PHY(l):-Slot=3; GigabitEthernet3/0/8: this SFP/XFP is present.

Aug 15 2008 15:12:59 mde-env-ne40e %%01SRM/4/SMCHECK(l): Slot3 SM monitor check result: 

     bit 5 -> MMI_INT_FLAG : 0x0008 @level 1 

          bit 6 -> OSI_INT_FLAG : 0x8000 !

#Aug 15 15:12:59 2008 mde-env-ne40e ENTMIB/4/TRAP:1.3.6.1.2.1.47.2.0.1 Entity MIB change.

Aug 15 2008 15:12:59 mde-env-ne40e %%01SRM/3/LPURESET(l): LPU3 reset, the reason is: LPU report Rereset SM error, and reset lpu!

Root Cause
The crystal oscillation of the 250M clock on the LPU board was faulty.
Solution
Replace the board.
Suggestions
If an LPU board fails to be registered and the same exception can be found in logs, the crystal oscillation of the 250M clock on the board is faulty. Replace the board to solve the problem.

END