The percentage becoming unidirectional traffic

This metric indicates the percentage of traffic that is passed to the DNCA that moves in one direction. To reassemble a hit, the DNCA matches requests (traffic moving between client browser and web server) to responses (messages that are sent back to client browser based on requests). To capture a visitor's experience, the DNCA must receive all bidirectional traffic.

Analysis: Typically, this issue is a configuration problem with the device that is responsible for forwarding data to the DNCA. Consult with your IT department to verify that the SPAN port or switch is forwarding bidirectional traffic across all Discover ports.

• When the DNCA detects unidirectional hits, those hits can be dropped. For request-type hits, can result in a request cancelled hit, with no corresponding response present in the capture stream.