Why Netflow added to monitor ports that wasn't configured to report on Netflow?

Why Netflow added to monitor ports that wasn't configured to report on Netflow?

Good day,

I have switch and router added to Netflow.
I configured only one interface on switch to report on Netflow - only this interface appeared on Netflow
I also configured only one port to report on Netflow on router. But few additional ports appeared on Netflow that wasn't configured with "ip flow monitor MONITOR-1 input" command.
Traffic information from this ports also collected

Could you please advise, why there is appeared additional interfaces for router that I didn't mention for monitoring?

Best regards

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