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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 50 Configuring NetFlow
Configuring NetFlow
Note • When you configure NetFlow aggregation on the MSFC, it is enabled automatically on the PFC.
• When you configure NetFlow for Layer 2 traffic on the MSFC, it is enabled automatically on the
PFC.
• When you configure multicast NetFlow on the MSFC, it is enabled automatically on the PFC.
Multicast NetFLow is supported in Release 12.2(18)SXF and later releases.
Enabling NetFlow on the PFC
To enable NetFlow statistics collection on the PFC, perform this task:
This example shows how to disable NetFlow statistics collection on the PFC (the default setting is
enabled):
Router(config)# no mls netflow
Setting the Minimum IP MLS Flow Mask
You can set the minimum specificity of the flow mask for the NetFlow table on the PFC. The actual flow
mask may be more specific than the level configured in the mls flow ip command, if other configured
features need a more specific flow mask (see the “Flow Mask Conflicts” section on page 50-4).
To set the minimum IP MLS flow mask, perform this task:
This example shows how to set the minimum IP MLS flow mask:
Router(config)# mls flow ip destination
show mls netflow {...} Displays NetFlow PFC information for unicast
and multicast traffic.
show mls netflow aggregation flowmask Displays the NetFlow aggregation flow mask.
Table 50-4 Summary of PFC NetFlow commands
Command Purpose
Command Purpose
Router(config)# mls netflow
Enables NetFlow on the PFC.
Router(config)# no mls netflow
Disables NetFlow on the PFC.
Command Purpose
Router(config)# mls flow ip {source | destination |
destination-source | interface-destination-source |
full | interface-full}
Sets the minimum IP MLS flow mask for the protocol.
Router(config)# no mls flow ip
Reverts to the default IP MLS flow mask (null).
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