
Explanation/Reference:
NetFlow facilitates solutions to many common problems encountered by IT professionals.
* Analyze new applications and their network impact
Identify new application network loads such as VoIP or remote site additions.
* Reduction in peak WAN traffic
Use NetFlow statistics to measure WAN traffic improvement from application-policy changes; understand
who is utilizing the network and the network top talkers.
* Troubleshooting and understanding network pain points
Diagnose slow network performance, bandwidth hogs and bandwidth utilization quickly with command line
interface or reporting tools.
* Detection of unauthorized WAN traffic
Avoid costly upgrades by identifying the applications causing congestion.
* Security and anomaly detection
NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-
Mars.
* Validation of QoS parameters
Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is
over- or under-subscribed.