Are you seeing the message frequently? %SYSTEM_CONTROLLER-SP-3-EXCESSIVE_RESET: System Controller is getting reset so frequently
The meaning of the error messages is that the controller (Mistral ASIC) is getting reseted so frequently, most of the time this is due to HW related problems. To verify and confirm, try looking at teh ibc counters:
remote command switch show ibc >> Look for ibc reset and MISTRAL ERROR counters. If they are incrementing most likely a hardware issue. If it's Mistral defect a re-seat would not correct it but it would confirm hardware issue, after capturing the show ibc from the SP, go back to RP and set the diagnostic level to complete and re-seat the sup. show diagnostic to see and confirm any conponent failure.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...