[MSDN Library April 2000] B.7.3.4 DL_UNITDATA_REQ_T (91.6666666666667%)
MSDN Library - April 2000 > DDK Documentation > Windows NT 4.0 DDK > Network Drivers > Design Guide > Part 4: Legacy Drivers > Appendix B STREAMS Support in Windows NT > B.7 Streams Transport Provider Lower Edge Translation > B.7.3 Fiber Distributed Data Interface (DL_FDDI)