How to show top 10 Port utilization of switches

I think it is more a problem of the type of data storage for the monitoring data.
If you transfer all performance data from CMK to InfluxDB (connector available inside enterprise edition or for classic Nagios core you can try https://github.com/Griesbacher/nagflux ) then you can have such reports with the queries from Grafana to InfluxDB.

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