3.3.5.5 Receiving a QosAck Frame

When a QosAck frame is received, the controller MUST attempt to match the Sequence Number field in the Base header and the Source MAC address field in the Ethernet header of the received frame against an existing network test session. If a session cannot be found, the frame MUST be ignored.

Otherwise, the controller MUST delete the associated network test session and MUST stop the Per-QosReset Response timer.