Bandwidth graph from octets

Hi,
I need to have a dashboard with bandwidth graph of data from mikrotik router.

Now I’ve this situation

Please could you explain me how to obtain what I wrote ?

thanks

It will probably be easiest to switch over to Influx Data Explorer (http://your-server-ip:8086) and build the query there, where you can see the various measurements, fields, tags, etc. The query shown below appears to be just a few lines, but no tags, no aggregation, etc.

sorry , I think that you suggested me that code but I’m newbie .
I ask to understand if it is possible and how to do without studying .

I need to obtain a Megabit values from Octets. I’m now able to see a line with data from source

thanks