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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 16 Configuring NDE
Understanding How NDE Works
Note NDE version 7 and NDE version 8 are not supported for the MSFC.
Note For information on configuring CEF for PFC2 and PFC3A, see Chapter 13, “Configuring CEF for PFC2
and PFC3A.” For information on configuring MLS, see Chapter 14, “Configuring MLS.”
Integrated Layer 3-switching management includes the products, management utilities, and partner
applications that are designed to gather the flow statistics, export the statistics, collect and perform data
reduction on the exported statistics, and forward them to the applications for traffic monitoring,
planning, and accounting. The flow collectors, such as the Cisco SwitchProbe and NetFlow
FlowCollector, gather and classify the flows. This flow information is then aggregated and fed to
applications such as TrafficDirector, NetSys, or NetFlow Analyzer.
Traffic Statistics Data Collection
An external data collector gathers the flow entries from the statistics cache of one or more switches or
Cisco routers. The switch or router transmits the data to the flow collector by grouping the flow entries
for the expired flows from its statistics cache into a User Datagram Protocol (UDP) datagram, which
consists of a header and a series of flow entries. See Figure 16-1.
Figure 16-1 Integrated Layer 3 Switching Management
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