netflow basics

NetFlow Overview: What is a NetFlow Data Flowset?

In Part 4 of our NetFlow Overview series, I will be discussing the NetFlow Data Flowset.  In Part 3 Joanne discussed the NetFlow Packet Template FlowSet and what is contained within. The templates tell the collector what information is being exported by the device. The Data FlowSet records contain values which correspond exactly to the …

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NetFlow v9 Overview: NetFlow basics

Welcome to the first installment of our NetFlow v9 Overview, beginning (of course!) with NetFlow basics. What is NetFlow? A network flow is defined as a unidirectional sequence of packets between given source and destination endpoints.  Traditional NetFlow uses a 7-tuple of source and destination IP address, transport layer port numbers, IP Protocol, Type of …

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