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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
These all seemed like great general purpose solutions that would work with any switch, but I was more thinking along the lines of a proprietary protocol/API that a switch manufacturer could implement similar to what you do with smart strips: https://github.com/p-doyle/Python-KasaSmartPowerStrip#example-code
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