Figure 2.6 describes packet mode, not stream

M17_spec.tex

@@ -969,7 +969,7 @@ Within the Physical Layer, the 368 Type 4 bits are randomized and combined with
 		\node (al) [sub,above of=dl,yshift=4cm] {
 			\begin{tikzpicture}
 				\node (ap) [rectangle,fill=black!20] {Application Layer};
-				\node (sd) [rectangle,draw,below of=ap,fill=white,yshift=1.5cm] {Stream Data};
+				\node (sd) [rectangle,draw,below of=ap,fill=white,yshift=1.5cm] {Packet Data};
 			\end{tikzpicture}
 		};
 		\draw [-latex](al) -- (dl);