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 |
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requestType |
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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.
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Value
Meaning
0x0001
The RTT Measure Request message is encapsulated in the autoDetectReqPduData 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 autoDetectReqPduData field of an Auto-Detect Request PDU sent during the Optional Connect-Time Auto-Detection phase of the RDP Connection Sequence.