IPFIX templates not recognized, records garbled. Cause: UDP loss of template datagram. Increase collector buffer or switch to TCP transport.
| Strategy | Description | Reduction Factor | |----------|-------------|------------------| | (exporter side) | Exporter only reports 1 of every N packets. | 10x–1000x | | Aggregation (collector side) | Merge flows with same key fields over fixed intervals (1,5,10 min). | 10x–100x | | Field pruning | Drop unused fields (e.g., TCP flags, ToS). | 2x–5x | | Delta compression | Store changes between consecutive records for the same flow key. | 3x–10x | netflow collection engine
Without a robust collection engine, your flow data is just noise. With one, it becomes the single source of truth for network traffic – the digital exhaust that reveals everything from a dropped BGP session to an active ransomware beacon. Further reading: RFC 7011 (IPFIX Protocol), Cisco IOS NetFlow Configuration Guide, pmacct documentation. IPFIX templates not recognized, records garbled