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There is Alarm of Board Temperature Monitor Failure after NE80E Upgrades

Publication Date:  2012-07-27 Views:  34 Downloads:  0
Issue Description
After NE80E of some project upgrades to NE80E-VRP5.10-12002R.02, display alarm all and prompts 
 <Quidway>disp alarm all                                                         
----------------------------------------------------------------------------    
Level          Date        Time                Info                             
Error        06-01-23    11:27:33    SlotID21, address2 temperature monitor failure                                     
-------------------------------------------------------------------
Restarting the system or swapping the board cannot recover.
Alarm Information
<Quidway>disp alarm all                                                         
----------------------------------------------------------------------------    
Level          Date        Time                Info                             
Error        06-01-23    11:27:33    SlotID21, address2 temperature monitor failure                                     
-------------------------------------------------------------------
Handling Process
1. Swap the board and it is still problematic.
2. Restart the system and it is still problematic.
3. Under hidden mode: display temperature slot 21                         
Address Status  Minor   Major   Fatal   Adjust_speed    Temp.(C)                
                                        TMin    Tmax                            
-----------------------------------------------------------------               
1       NORMAL  49      55      85      30      45      31                      
2       *       *       *       *       *       *       *   
The second sensor is problematic.
4. Under hidden mode: reset cannode slot 21                               
canbus node reset                                                               
[HN-CS-HHY-CNGI-A-1-hidecmd]dis alarm all                                       
----------------------------------------------------------------------------    
Level          Date        Time                Info                             
                                                                                
Error        06-05-25    16:00:55    SlotID21, address2 temperature monitor failure                                     
----------------------------------------------------------------------------    
[HN-CS-HHY-CNGI-A-1-hidecmd]                    
Reset sensor and it is still problematic.
5. Change the board and the problem is solved.
Root Cause
Possible reasons:
1. The sensor is problematic.
2. CBUS logic file results in CBUS error alarm through JTAG.
Suggestions
Null

END