Visual Surf

delivery of the data; Router 1 is involved in that process. Host A’s network, physical, and data link layers communicate with Router 1, and likewise, Router 1 communicates with Host B’s physical, data link, and network layers. Figure 3-3 provides a visual representation of the same-layer interaction concepts. Figure 3-3 Same Layer Interactions on Different Computers Host A Application Presentation Session Transport Network Data Link Physical Network Data Link Physical Router 1 Host B Application