[MSDN Library June 1998] 5.5.1 Asynchronous Framing (19.9074074074074%)
MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Network Drivers > Design Guide > Part 2: Miniport NIC Drivers > Chapter 5 WAN Miniport NIC Drivers > 5.5 WAN Packet Framing