This figure is similar to the one in figure 4.2, in which we see a system of five routers arranged in a pentagon and connected with black lines representing interface links. A packet of data with a number designation of 0100/1101 arrives at the left-most router. This router is associated with a match-plus-action table, which appears as:

The match-plus-action table determines that among three possible paths, the data packet will be forwarded along path 2.