Netflow and QoS

Answered Question
May 3rd, 2008

Hi,

We want to enable Netflow NDE in our PE router, but we also concern if any impact on our QoS. Is there any experience before ?

Thanks.

I have this problem too.
0 votes
Correct Answer by cisco_lad2004 about 8 years 8 months ago

I am using netflow today on 7600, no impact what so ever.

HTH

Sam

Correct Answer by Jan Nejman about 8 years 8 months ago

Hello,

I think that a NetFlow hasn't any impact on your QoS. I don't know what device do you using as your PE. I suppose that it is Cisco 7600 - this box has NetFlow implemented in ASIC (HW), so there is not any doubt. If you're using 7200 or similar netflow will use up to 20% of CPU, but it is not problem...

Kind regards,

Jan

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Correct Answer
Jan Nejman Sun, 05/04/2008 - 04:11

Hello,

I think that a NetFlow hasn't any impact on your QoS. I don't know what device do you using as your PE. I suppose that it is Cisco 7600 - this box has NetFlow implemented in ASIC (HW), so there is not any doubt. If you're using 7200 or similar netflow will use up to 20% of CPU, but it is not problem...

Kind regards,

Jan

Correct Answer
cisco_lad2004 Sun, 05/04/2008 - 10:16

I am using netflow today on 7600, no impact what so ever.

HTH

Sam

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