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1. NETFLOW & NETWORK-BASED APPLICATION RECOGNITION ITD PRODUCT MANAGEMENT NOVEMBER 2003

5. NetFlow and NBAR: Main Objectives and Benefits NetFlow and NBAR, November 2003 © 2003 Cisco Systems, Inc. All rights reserved. Cisco Internal Use Only Persistent Network Usage Record Traffic & routing information analysis IP accounting and Billing Technology Which users utilize the network What types of traffic When is the network utilized Where does the traffic go NetFlow Flow Characterization Network Usage Capacity Planning, Traffic Engineering, Peering Data Export Optimize application performance via QoS NBAR Main Benefit Main Objective Validation or reclassification of ToS marking based on packet inspection Identify & classify traffic based on payload attributes & protocol characteristics

6. NetFlow and NBAR: Additional Objectives and Benefits NetFlow and NBAR, November 2003 © 2003 Cisco Systems, Inc. All rights reserved. Cisco Internal Use Only IETF IPFIX WG Standard and NetFlow v.9 flexible extensible format Optimized Edge Routing (OER) Permanent Record of network activity Capacity Planning and Traffic Engineering DDOS & Worm Detection NetFlow Flow Characterization Network Usage Billing Capacity, Traffic Eng, Peering Data Export NBAR Side Benefits Main Objective Application statistics for bandwidth provisioning Detection & dropping/limiting of undesired traffic – peer-to-peer file sharing, worms, … Identify & classify traffic based on payload attributes & protocol characteristics

11. © 2003 Cisco Systems, Inc. All rights reserved. NetFlow and NBAR, November 2003