220.127.116.11 Sending an RDPGFX_QOE_FRAME_ACKNOWLEDGE_PDU message
The structure and fields of the RDPGFX_QOE_FRAME_ACKNOWLEDGE_PDU message are specified in section 18.104.22.168. The command fields MUST be populated in accordance with this description. The client MUST populate the frameId field with the ID of the most recently processed logical frame, as specified in section 22.214.171.124.
If the client has opted in to sending the RDPGFX_FRAME_ACKNOWLEDGE_PDU (section 126.96.36.199) message, then, with respect to sequencing, the RDPGFX_QOE_FRAME_ACKNOWLEDGE_PDU message SHOULD only be sent after the RDPGFX_FRAME_ACKNOWLEDGE_PDU message has been transmitted.