Running Netflow on 802.1q trunk Fast Ethernet port

[thomuff]

I have a 2811 with subinterfaces on the Fast Ethernet for different vlans. 8021.q trunk between the router and a Catalyst 3560. Would there be any adverse effects by turning on Netflow on the FastEthernet interface or do I need to do it on the subinterfaces.

[sundar.palaniappan]

I don't see why you can't turn on netflow on the main interface. We have many customers with the same setup and netflow just works fine when enabled on the main interface.

HTH,

Sundar