[c-nsp] Netflow on 7600

[Tim Stevenson]

At 10:41 PM 7/21/2006 +0200, coueffe charly exclaimed:
>Hi,
>
>I have a cisco 7600 and i want to use Netflow on peering interfaces in
>output. I use ip flow egress command on those interfaces, but I receive
>informations on all interfaces.
>
>I don't understand because i don't have enable on another interfaces.

It is a limitation of the current software - you will get software NF 
stats exported only for the interfaces you configured, but you will 
get hardware NF stats exported for all active flows in the h/w NF 
table. There is a roadmap to support per-interface h/w flow creation 
but it's not there today.

Another option is sampled NF which will export h/w stats info only 
for the interfaces you specify. Even with sampling the h/w flows are 
still created for all interfaces today, but only the flow info 
associated with interfaces having mls netflow sampling will get exported.

Tim

>I use ip flow-cache timeout active/inactive command and ip flow-export
>destination x.x.x.x
>
>
>My IOS is a 12.2(33) SRA.
>
>Thank you for you help.
>
>Regards,
>
>Charly
>
>
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Tim Stevenson, tstevens at cisco.com
Routing & Switching CCIE #5561
Technical Marketing Engineer, Catalyst 6500
Cisco Systems, http://www.cisco.com
IP Phone: 408-526-6759
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