Flexible Netflow (Fnf) - Cisco Catalyst 6500-E Series Manual

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Figure 20.

Mini-Protocol Analyzer Configuration Options

Flexible NetFlow (FnF)

Flexible NetFlow is the next generation in flow analysis technology. It optimizes the network infrastructure,

reducing operation costs and improving capacity planning and security incident detection with increased flexibility

and scalability. It gives the network administrator the ability to characterize IP traffic and identify its source, traffic

destination, timing, and application information, which is critical for network availability, performance, and

troubleshooting. The monitoring of IP traffic flows increases the accuracy of capacity planning and makes sure

that resource allocation supports organizational goals.

The Cisco Catalyst 6500-E with Supervisor Engine 2T supports Flexible NetFlow with Cisco IOS Software Release

12.2(50)SY and newer. The gathering of flow information is done by all forwarding engines (PFC4s/DFC4s)

individually for both IPv4 and IPv6 traffic, allowing the system to collect up to 13 million flow entries in a 6513-E

system. Additional Flexible NetFlow capabilities such as per-VRF NetFlow, per-SGT NetFlow, Egress NetFlow,

and MPLS NetFlow are also supported. Flexible NetFlow uses the NetFlow V9 header format, which gives the

network administrator more control over the types of flows that are collected in the system. Figure 21

demonstrates the Flexible NetFlow model.

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