Carl Burkland November 19, 2008 - Pacug.com

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What Defines a Flow?• Source IP address• Destination IP address• Source port for UDP or TCP, (zero for other protocols )• Destination port for UDP/TCP, type & code for ICMP,(zero for other protocols)• IP protocol• Ingress interface• IP Type of Service

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What can Netflow see?Ingress / Inbound• IP-to-IP packets• IP to Multiprotocol Label Switching (MPLS) packets• Frame Relay-terminated packets• ATM-terminated packetsEgress / Outbound• IP traffic• Multiprotocol Label Switching (MPLS) to IP packets.

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: Netflow Components• Exporter - se
Page 11: Solarwinds Real-time Netflow Analyz
Page 14 and 15: How can I limit resource impact?•
Page 16 and 17: Wait! - What do I do if my devicedo
Page 18: Useful Links• Cisco Netflow Main

Carl Burkland November 19, 2008 - Pacug.com

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