08-25-2018 04:20 PM - edited 03-08-2019 03:59 PM
On 30 out or 31 Cat4500 (sup2t) the following log message is generated approximately every 30 seconds:
Aug 25 15:28:41.041: %SISF-3-INTERNAL: Internal error, id 0 does not match any feature -Process= "SISF Switcher Thread", ipl= 0, pid= 393
I could not find anything in web searching that points to a cause. What is the "SISF Switcher Thread" and how to diagnose the "Internal error"?
08-25-2018 05:06 PM
08-25-2018 07:39 PM
No wireless involved
08-25-2018 06:39 PM
Sup-2T does not work in Cat-4500 series switches. Sup-2T is for 6500 and 6800 series.
HTH
08-25-2018 07:46 PM
Sorry yes i mis quoted the sup they are sup 7-E
08-25-2018 07:58 PM
Ok, I was not able to find any related bugs. I recommend opening a case with Cisco as this may be a known but not publicly published bug.
HTH
08-26-2018 02:10 AM
I found a fix. Commenting here in case it helps others
The switches were manually ISSU style upgraded (redundancy reload peer -> then redundancy force-switchover). The switch looked fined with one sup Active and the other Hot Standby. The one switch that had a complete restart (redundancy reload shelf) was not generating the warnings.
The fix was to perform one further "redundancy force-switchover" to reload the first sup upgraded a second time.
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