How does Netflow calculate the application percentage of total traffic? Is it done before the traffic is passed through quality of service or after? The reason why I am asking is because Netflow most of the times display that we have on our uplink 45% of the total traffic is SMTP and 52% http. We have implemented QOS and reserved 60% of the bandwidth for http but netflow is not showing the changes. We know that http traffic is more than 52%