Measured event size · Network flows

Cisco Netflow v9 log size: 814 bytes per event

The average Cisco Netflow v9 event is 814 bytes, measured from samples of its logs. A network flow source typically produces 2,000 events per second per device, bursting to 10,000: unsampled; 1:1000 sampling is 1000x lower. The rate is an informed estimate; the size is measured.

What that comes to

One device, raw bytes, at the typical rate for a network flow source.

A day of Cisco Netflow v9 logs from one device at the category's typical rate, 141 GB, is about the size of a 70B model’s weights.

Size your own

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 Cisco Netflow v9 what moves it most is this: unsampled; 1:1000 sampling is 1000x lower. The profiler reads a sample from Cisco Netflow v9 in your browser, line by line, one event per line, and reports the bytes per line to set against it. Nothing is uploaded.

Other network flow sources

• Cisco Netflow v5830 B

The network flow category: its typical rate and every source in it →