When cflowd is enabled on an interface, all packets forwarded by the interface are subject to analysis according to the global cflowd configuration and sorted according to the collector configurations.
See Table: Cflowd configuration dependencies for configuration combinations.
When the cflowd interface option is configured in the config>router>interface context, the following requirements must be met to enable traffic sampling on the specific interface:
Cflowd must be enabled.
At least one cflowd collector must be configured and enabled.
The interface>cflowd interface option must be selected. For configuration information, see Filter policy configuration overview.