Systems and methods include detecting whether a monitored network has a unique configuration; responsive to the unique configuration, determining an ingress point for flow samples; and utilizing the determined ingress point for the flow samples to generate a traffic report for the monitored network. The unique configuration is an inter-Autonomous System (AS) option-C Virtual Private Network (VPN) network where control and data planes are asymmetric. The approach provides traffic projection based on the flow samples with the asymmetric flows.