Int 61 Fn 0003  - Banyan Vines - Async Terminal Emulation - Start/stop Tr  [N]

   AX = 0003h subfn 13h
   DS:BX -> argument block (see #3068)

Return: AX = status (see #3040)

See Also: AX=0003h/SF=00h,AX=0003h/SF=0Eh

Format of VINES argument block:
Offset Size    Description (Table 3068)
 00h   BYTE    session ID (00h)
 01h   BYTE    13h (function "start/stop tracing data traffic in session")
 02h   BYTE    trace flag (00h=off, 01h=on)