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While the Top Sources test indicates the hosts that could be engaging in bandwidth-intensive activities over the network, the Top Destinations test sheds light on what those activities might be. This test discovers the destinations of the net flows, and for each destination, reports the data traffic (in bytes and packets) leading to that destination. This way, the test points you to the destinations that are been frequently accessed and the level of traffic they generate.

Measurement	Description	Measurement Unit	Interpretation
Total_Flow_Data	Indicates the amount of data transmitted to this destination over the network.	KB	Compare the value of this measure across destinations to identify which destination host is contributing to the high level of network traffic. Use the detailed diagnosis of this measure to view the top net flows (in terms of the volume of data transacted) to a particular destination, and the amount of data transacted in bytes and packets in every flow. With the help of this detailed diagnosis, you can quickly compare the top net flows, know which net flow generated the maximum traffic, and figure out which source that traffic originated from. Once the problem source is isolated, you can then investigate why traffic from that source is high. Also, using the detailed diagnosis, you can also identify sources that have interacted with the said destination more than once. This will point you to sources that have frequently connected with the destination.
Flow_pct	Indicates the percentage of top network flows in which this host is the destination.	Percent	Compare the value of this measure across destinations to know which destination is part of many top net flows. A high value is indicative of a ‘suspect’ destination.
Total_Flow_Packet	Indicates the number of data packets transmitted by this source over the network.	Pkts	Compare the value of this measure across sources to identify which source host is contributing to the high level of network traffic.