Grafana dashboard for netflow using elasticsearch data source

Grafana version: 11.1.4

I have installed elasticsearch with filebeat for collecting Netflow data from GW routers. Grafana-server is also in the same server. I want to create network traffic monitoring dashboards in Grafana. Kindly help me with samples or Lucene Query for the same.

I tried to do it, but seems like the conversion from sum of bytes to Mbps with automatic timerange is not working.