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### Instruction:
CPU_CTRL-3-ACK_ERROR
### Response:
(Severity: 3), (Category: PLATFORM), (Description: The system has encountered an error while refreshing SFP port.), (Recommended Action: Replace with a Cisco supported SFP If the message recurs, copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative and provide the representative with the gathered information.)
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