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VSP 8600 : HW INFO Detected Unknown Card Type module in slot PS

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TitleVSP 8600 : HW INFO Detected Unknown Card Type module in slot PS
Symptoms
  • 'ghost PS' are being registered in the log file with messages during bootup:
0x0001088b 00000000 GlobalRouter HW INFO Detected Unknown Card Type module in slot PS ?
 
  • show software slot’ output displays a non-existent PS in slot 3, the ‘show sys-info’ output does not:
     
#show software slot

====================================================================================================
                          Software running on chassis
====================================================================================================

Slot    Release
----    -------
1       VOSS8600.6.2.0.3.GA
2       VOSS8600.6.2.0.3.GA
3       VOSS8600.6.2.0.3.GA
4       VOSS8600.6.2.0.3.GA
5       VOSS8600.6.2.0.3.GA
PS 3    Offline - Unknown
SF 1    VOSS8600.6.2.0.3.GA
SF 2    VOSS8600.6.2.0.3.GA
SF 3    VOSS8600.6.2.0.3.GA
 
# show sys-info

    Ps#3 Status       : UP
    Ps#3 Type         : AC
    Ps#3 Description  : VSP8600 AC Power Supply
    Ps#3 Serial Number: 18KZ34200189
    Ps#3 Version      : 1:1
    Ps#3 Part Number  : EC8605A01-E6
  • Unknown Card Type’ entry is registered on the 'show sys-info card' output:
    
#show sys-info card 

  PS3 : 

    CardType          : Unknown Card Type
    CardDescription   : Unknown Card Type
    CardSerial#       : 
    CardPart#         : 
    CardAssemblyDate  : 
    CardHWRevision    : 
    CardHWConfig      : 
    AdminStatus       : up
    OperStatus        : down
    PowerStatus       : on
Environment
  • VSP8600
  • VSP8600 any release
Cause
The issue is caused by CPLD (= complex programmable logic device) interrupts being misinterpreted that result in phantom slots to be erroneously displayed. No functional impact.
Resolution
  • Upgrade to VSP8600 release 6.3.2.0
Additional notes

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