Which tool can be used to inspect the path of a packet in the data plane?

The appropriate tool for inspecting the path of a packet in the data plane is Traceflow. This feature is designed specifically to analyze and troubleshoot packet flows within the NSX-T environment. Traceflow allows users to simulate a packet's journey from a source to a destination, providing visibility into how packets are processed through the various components of the NSX-T data plane.

When utilizing Traceflow, one can observe the applied policies, identify potential issues, and understand where packets may be lost or delayed within the virtual network. It effectively traces the path a packet would take, offering insights into the logical and physical layers of network infrastructure.

In contrast, other options have different primary functions. For example, a Port Connection provides information about the connections on a specific port but does not track packet flow. Port Mirroring Session can duplicate traffic for troubleshooting purposes, but it does not provide the direct analysis of packet paths as Traceflow does. Netflow is primarily used for monitoring and analyzing traffic flow statistics rather than tracing packet paths. Therefore, Traceflow stands out as the correct choice for inspecting the trajectory of packets in the data plane.