FRAME_DESCRIPTOR

The FRAME_DESCRIPTOR structure provides descriptive information about raw frames.

typedef struct _FRAME_DESCRIPTOR {
 LPBYTE FramePointer;
 __int64 TimeStamp;
 DWORD FrameLength;
 DWORD nBytesAvail;
 WORD Etype;
 BYTE Sap;
 BYTE LowProtocol;
 WORD LowProtocolOffset;
 GENERIC_PORT HighPort;
 WORD HighProtocolOffset;
} FRAME_DESCRIPTOR, 
 *LPFRAME_DESCRIPTOR;

Members

• FramePointer
  Pointer to frame data.
• TimeStamp
  System time, in microseconds, when the frame was captured. This time is typically used to determine the interval between the times two frames were captured.
• FrameLength
  Length of the frame.
• nBytesAvail
  Actual frame length copied.
• Etype
  Etype name.
• Sap
  SAP value.
• LowProtocol
  Index of protocol found.
• LowProtocolOffset
  Offset to protocol data obtained from LowProtocol.
• HighPort
  Port of high protocol identified in LowProtocol.
• HighProtocolOffset
  Offset to protocol data obtained from HighPort.

Requirements