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2.2.14.1.1 RTT Measure Request (RDP_RTT_REQUEST)

The RDP_RTT_REQUEST structure is used to initiate a round-trip time measurement operation.


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headerLength

headerTypeId

sequenceNumber

requestType

headerLength (1 byte): An 8-bit unsigned integer that specifies the size, in bytes, of the header data. This field MUST be set to 0x06.

headerTypeId (1 byte): An 8-bit unsigned integer that specifies the high-level type. This field MUST be set to TYPE_ID_AUTODETECT_REQUEST (0x00).

sequenceNumber (2 bytes): A 16-bit unsigned integer that specifies the message sequence number.

requestType (2 bytes): A 16-bit unsigned integer that specifies a request type code. This field MUST be set to one of the following values.

Value Meaning

0x0001

The RTT Measure Request message is encapsulated in the autoDetectReqData field of an Auto-Detect Request PDU (section 2.2.14.3) sent after the RDP Connection Sequence (section 1.3.1.1) has completed.

0x1001

The RTT Measure Request message is encapsulated in the autoDetectReqData field of an Auto-Detect Request PDU sent during the Optional Connect-Time Auto-Detection phase of the RDP Connection Sequence.

 
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