[[inputs.sflow]] service_address = "udp://:6343" sample_limit = 1000 [[outputs.influxdb]] urls = ["http://localhost:8086"] database = "sflow_data"

Ensure -i sflow:// is correct interface – use 0.0.0.0 to listen on all.

Here’s a practical guide to setting up a , including what sFlow is, why you might need it, and which open-source tools work best. 1. What is sFlow? sFlow (Sampled Flow) is an industry-standard technology for monitoring network traffic. Unlike NetFlow (which exports every flow’s summary), sFlow samples packets randomly, making it more scalable for high-speed networks.

# Check if sFlow packets arrive sudo tcpdump -i eth0 udp port 6343 -c 10 show sflow

sflowtool -p 6343 | python3 my_analyzer.py Example Python snippet: