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About the netflow send out frequency

Unanswered Question
Apr 4th, 2006
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Hi,


Would anyone knows how frequency the netflow message send out from Cisco router ? I thought it depends on the router internal mechanism, anyone would explain it if has ?


Thanks a lot!!

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Jan Nejman Tue, 04/04/2006 - 08:04
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Hello,

I think that router send exports in the 8 sec intervals. If flow export cache is full it will send

netflow packets immediately. I really don't know if it is cisco algorithm, but experimentally I receive bulk of netflow packets every 8s. Expiration of flows depends on the flow cache active/inactive timeouts and TCP FIN/RST flags.



Jan Nejman

Caligare Co.

http://www.caligare.com


xzjleo2005 Wed, 04/05/2006 - 07:18
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Thank you for your information. i will have a test for it.


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