Carl Burkland November 19, 2008 - Pacug.com

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Wait! – What do I do if my devicedoes not support Netflow export?• SPAN + Netflow Probe• Download and install netflow probe to a machine with 2network interface cards (nProbe)• One NIC will listen to traffic and the other will export the datareceived to the Netflow collector• Span source port of interest to switchport connected tothe listening NIC
How can Netflow be leveragedbeyond Network monitoring?• Network Planning• Growth – More Bandwidth?• Change in application behavior – Adjust QOS policy?• Security Monitoring / Denial of Service Prevention• Unauthorized traffic• Worms• Accounting and Billing• Departmental Chargeback• ISP Customer Billing based on data usage• Traffic Engineering• ISP with BGP AS data
Page 1 and 2: Pittsburgh Area Cisco Users Group (
Page 3 and 4: MRTG Graph with and without NBAR
Page 5 and 6: Netflow Facts• Netflow - Develope
Page 7 and 8: Netflow Components• Exporter - se
Page 9 and 10: What Defines a Flow?• Source IP a
Page 11: Solarwinds Real-time Netflow Analyz
Page 14 and 15: How can I limit resource impact?•
Page 18: Useful Links• Cisco Netflow Main

Carl Burkland November 19, 2008 - Pacug.com

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