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Not surprisingly, the ability to characterize IP traffic and account for how and where it flows is critical. Monitoring IP traffic flow facilitates more accurate capacity planning. It ensures that resources are used appropriately. It helps IT determine where to apply Quality of Service (QoS) so that vital traffic receives priority. And it plays a vital role in network security. Cisco relied almost exclusively on Simple Network Protocol (SNMP) to monitor Internet bandwidth. Gradually, Cisco has deployed Cisco IOS NetFlow technology, which is built into most Cisco switches and routers. NetFlow answers the who, what, when, where, and how of network traffic, and it has become the primary network accounting technology and anomaly-detection technology in the industry.

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Format:PDF
Date:Dec 2007

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