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Cisco Bug: CSCtc86471 - AD-XL: Power Supply failure after system switchover, caused pwr-denied

Last Modified

Mar 16, 2016

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases


Description (partial)

After a Supervisor failover on a Nexus 7000 the switch fails to recognize power supply 4.  Affects only if in case of 18 slot and has Power Supply in 4th slot. not always, but some time.

show environment power does not show the module 4 power supply, but does show an "actual output" vlaue:
<font face="Courier New">Nexus7000#sh environment power
Power Supply:
Voltage: 50 Volts
Power                              Actual        Total
Supply    Model                    Output     Capacity    Status
                                 (Watts )     (Watts )
-------  -------------------  -----------  -----------  --------------
1        N7K-AC-7.5KW-US            853 W       7500 W     Ok        
2        N7K-AC-7.5KW-US            835 W       7500 W     Ok        
3        N7K-AC-7.5KW-US            860 W       7500 W     Ok        
4                                                   840 W             0 W     Ok

Problem occurs after a Supervisor failover
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