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Thank you for asking this question in the support community. If you do a search on the web you will find many arguments debating the benefits of SFlow vs. Netflow. ADTRAN units support Integrated Traffic Monitoring (ITM) also known as Netflow. The guide Configuring Integrated Traffic Monitoring (ITM) in AOS most likely will answer any questions you have about the technology. However, if you have any questions, please do not hesitate to let me know, by replying to this post. I will be happy to help in any way I can.
Levi
