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Cisco Bug: CSCvv42583 - C9400 VSS linecard of standby device keep in inserted(physical) status after boot up.

Last Modified

Oct 23, 2020

Products (1)

  • Cisco Catalyst 9400 Series Switches

Known Affected Releases


Description (partial)

C9407 VSS devices, after boot up, found one slot in standby device does not come up. 
'show module' shows the module status is 'ok', but 'show platform' shows the line card status is inserted (physical). 
Below traceback code will generate at the same time. 

*Aug 19 00:42:11.464: %SYS-2-NOTQ: unqueue didn't find 80007FD9185FD280 in queue 800055794623DD70 -Process= "CWAN OIR Handler", ipl= 2, pid= 172
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  :5579330FA000+A12EE3E :5579330FA000+6D187E3 :5579330FA000+6D4C343 :5579330FA000+6D412F8 :5579330FA000+5FD5863 :5579330FA000+5FD5464 :5579330FA000+5FD83CB :5579330FA000+5FE14C0
*Aug 19 00:42:11.465: %SYS-2-LINKED: Bad enqueue of 80007FD9185FD280 in queue 8000557943F8CA60 -Process= "CWAN OIR Handler", ipl= 2, pid= 172
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  :5579330FA000+A12EB2A :5579330FA000+6D4C343 :5579330FA000+6D412F8 :5579330FA000+5FD5863 :5579330FA000+5FD5464 :5579330FA000+5FD83CB :5579330FA000+5FE14C0

This issue only occurs with single power module with 110v AC.

H/W: C9407 VSS with single sup/ single power supply(AC 110v)
S/W: 16.12.4
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