Flow-Based Telemetry

Flow based telemetry (FBT) enables per-flow-level analytics, using inline monitoring services to create flows, collect them, and export them to a collector using the open standard IPFIX template to organize the flow.

Notes:

• Starting in Junos OS release 25.2R1, L2 firewall filters are supported. 
• The EX4400 does not support feature profiles, drop vectors, analyzing the load distribution of ECMP groups/LAGs over member IDs, tracking of traffic congestion, or gathering information about multimedia flows or why packets are dropped.