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Cisco Bug: CSCsz85105 - DC voltage alarm generated on the MGX even though within the threshold

Last Modified

Feb 04, 2016

Products (1)

  • Cisco MGX 8800 Series Switches

Known Affected Releases

5.1(50)

Description (partial)

Symptom:

One might see an environmental alarm in the logs even though the voltage  is within the
threshold via dspenvalms.

Below shows an alarm  occuring when it is not below the threshold 

MGX03.8.PXM.a > dsplog -mod ENVM_

08A02659 05/04/2009-04:14:20 ENVM-3-ENV_ALARM_CLR  
         tmon       asmCheckDCLevel
 Environmental Alarm Clr: DC Voltage B OK
08A02658 05/04/2009-04:14:05 ENVM-2-ENV_ALARM_SET  
         tmon       asmCheckDCLevel
 Environmental Alarm Set: DC Voltage B Below Threshold (45)


Below shows an alarm occuring when it is not above the threshold via dspenvalms


MGX02.8.PXM.a > dsplog -mod ENVM
 
08A08547 05/26/2009-04:28:47 ENVM-3-ENV_ALARM_CLR  
         tmon       asmCheckDCLevel
 Environmental Alarm Clr: DC Voltage B OK
08A08546 05/26/2009-04:28:32 ENVM-2-ENV_ALARM_SET  
         tmon       asmCheckDCLevel
 Environmental Alarm Set: DC Voltage B Above Threshold (51)


Conditions:

If there is a quick power spike.
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