NetFlow - nbonnand/ovs-toolbox GitHub Wiki

3.1 Graphing with NetFLOW and NTOP

I have a running NTOP server with a NetFLOW collector listening on 192.168.0.18 port 62000 and want to graph network traffic of br0 bridge.

3.1.1 Open vSwitch NetFlow configuration

sflow

  • a Select Flows tab
  • b Select NetFLOW tab
  • c Enter ip and port of distant NTOP server
  • d Validate. A UUID should appear in e !

3.1.2 Visualization in NTOP

With 2 docker containers (10.0.0.2 and 10.0.03) attached to br0, let's generate some traffic on br0 with iperf.

The result can be seen on NTOP interface: sflow

3.1.3 Additional NTOP config

Here are some details on how to basically configure NTOP NetFLOW collector: sflow

  • h Select Configure

  • i Enter listening port for collector

  • If you want to delete, NetFlow configuration from your current OvS bridge, press g