Juniper

Juniper widely supports a flow export called jFlow. It is available on MX router series as well as J-Series and SRX.

There is different support for different versions of the operating system, platforms, and cards. There is also a known issue with sampling rate detection on the Flowmon side. We have it implemented based on IPFIX RFC which is not followed by Juniper. As a workaround, you can configure a static sampling rate per listening port. Note that in jFlow, the duration of flow works differently than in traditional NetFlow because it is always counted since the start of the connection and does not get reset with flow export.