Flow-Based Telemetry for VXLANs

You can configure flow-based telemetry (FBT) for VXLAN-encapsulated traffic only. FBT for VXLANs enables per-flow-level analytics for VXLAN encapsulated traffic that uses either a centrally routed bridging (CRB) overlay or an edge-routed bridging (ERB) overlay. FBT for VXLANs uses inline monitoring services to create flows, collect them, and export them to a collector.

FBT for VXLANs differs from the standard FBT feature in the following ways:

• Only IRB interfaces are supported.
• Only one inline-monitoring instance and one collector are supported.
• The flow table keys include fields important for VXLANs, and the IPv4 and IPv6 flow table keys include different fields.
• You cannot configure an option template identifier or a forwarding class.