![]() Flow Exporter, Record, Monitor and Activation.įNF is divided into three distinct functions: the selection of data we want to analyse (flow record), the collection of the data (flow monitor), and the export of the data to a collector (flow export). There are changes in the terminology but this is the same principles like Cisco NetFlow version 9. IP Flow Information Export (IPFIX) is the IETF standard version of NetFlow. It is available since IOS 12.4(9)T for some platforms, or IOS 15.0(1)M for others (from 12.2(50)SY on 6500/Sup2T). Flexible NetFlow facilitates the creation of more complex configurations for traffic analysis and data export through the use of reusable configuration components.įNF is supported (at least) on the following Cisco platforms: ISR, ISR-G2, ISR4K, ASR1K, ASR9K, CRS-1, CSR1000v, Catalyst 3750X, 3560X, 3850, 4500 & 6500 SUP2T, Nexus 7K, Nexus 1000V. NetFlow collect and export the data to enable network and security monitoring, network planning, traffic analysis, and IP accounting.įlexible NetFlow (FNF) improves the original NetFlow by adding the capability to customize the traffic analysis parameters for your specific requirements. It provides statistics on packets flowing through a router or a switch. NetFlow is a Cisco technology available in Cisco IOS since 1996. NetFlow, Flexible NetFlow (FNF), IP Flow Information Export (IPFIX) ![]() In my opinion, Netflow is one of the absolutely required software to have a good visibility when you operate a network. Recently, a customer called me to configure Netflow on these routers because he just installed NetFlow Analyzer software from ManageEngine. This software is an “all in one” NetFlow collector, database, WebUI software, able to build pretty nice reports.
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