Juniper Networks J-Flow flow monitoring and accounting - license - 1 device

The Juniper Networks J-Flow feature provides a method by which you can collect IP traffic flow statistics on your routing devices. J-Flow does not require any special protocol for connection setup. It also does not require any external changes to networked traffic, packets, or any other devices in the network. In other words, J-Flow is transparent to the existing network, including end stations and application software and network devices such as LAN switches.

The Juniper Networks implementation of J-Flow allows you to export data to the UDP port of a remote workstation for data collection and further processing. In addition, the ability to enable J-Flow on an individual virtual router, interface, or subinterface allows you to collect network statistics for specific locations within your network.