Typical event rate · category

Router log rate: 15 events/s per device

A router source typically produces 15 events per second per device, bursting to 200: control plane only; ACL logging is the swing. The rate is an informed estimate, a starting point for a sizing, not a measurement; the event sizes below are measured.

Measured sources in this category

Average bytes per event, measured, and one device's volume at the typical 15 events per second.

At the median size, a day from one device, 179 MB, is about 2 times an hour of Spotify.

Size a fleet

Raw bytes, before compression, indexing overhead and replication.

Measure a sample of your own

The figure above is an average; yours will differ, and for router logs what moves it most is this: control plane only; ACL logging is the swing. The profiler reads a sample from router logs in your browser, line by line, one event per line, and reports the bytes per line to set against it. Nothing is uploaded.