Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


Supported Flow Monitoring and Discard Accounting Standards

On routers equipped with one or more Adaptive Services PICs (both standalone and integrated versions), Monitoring Services PICs, or DPCs, Junos OS substantially supports the standards for cflowd version 5 and version 8 formats that are maintained by CAIDA and accessible at

The following RFC does not define a standard, but provides information about flow monitoring. The IETF classifies it as “Informational.”

  • RFC 3954, Cisco Systems NetFlow Services Export Version 9

On MX Series routers, Junos OS partially supports the following RFCs:

  • RFC 5101, Specification of the IP Flow Information Export (IPFIX) Protocol for the Exchange of IP Traffic Flow Information

  • RFC 5102, Information Model for IP Flow Information Export