Nde On The Pfc - Cisco 7604 Configuration Manual

Chapter 51 Configuring NDE
Cisco IOS NetFlow Configuration Guide.

NDE on the PFC

NDE on the PFC exports statistics for flows routed or bridged in hardware. These sections describe NDE
on the PFC in more detail:
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NDE Flow Mask
You can configure the minimum NetFlow flow mask for NDE. The NetFlow flow mask determines the
granularity of the statistics gathered, which controls the volume of statistics for NDE to export.
For more details about flow masks, refer to
Additional NDE Fields
You can configure NDE to populate the following additional fields in the NDE packets:
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These fields are populated by the software looking up the FIB table entry before sending out the NDE
record to the collector. Therefore, these fields are blank when you use the show command to display the
hardware NetFlow table.
NDE Versions
Release 12.2(18)SXF and later releases support NetFlow version 9. NDE exports statistics for NetFlow
aggregation flows using NDE version 8. See this document for infomation about NetFlow versions 8
and 9:
http://www.cisco.com/en/US/docs/ios/netflow/configuration/guide/cfg_nflow_data_expt_ps6017_TSD
_Products_Configuration_Guide_Chapter.html
NDE exports IP unicast traffic using NDE versions 5, 7 and 9.
Some fields in the flow records might not have values, depending on the current flow mask. Unsupported
fields contain a zero (0).
With the WCCP Layer 2 redirect, the nexthop field and the output field might not contain accurate
Note
information for all NetFlows. Therefore, the destination interface for traffic returned from the web server
has a client interface instead of the cache interface or the ANCS interface.
OL-4266-08
NDE Flow Mask, page 51-3
NDE Versions, page 51-3
Exporting NetFlow Data, page 51-7
NetFlow Sampling, page 51-7
IP address of the next hop router
Egress interface SNMP ifIndex
BGP AS
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
Chapter 50, "Configuring
Understanding NDE
NetFlow".
51-3