So far, we have learned a lot about the devices available in Packet Tracer. In this chapter, we will start putting these devices to use. We'll learn what it takes to create a network topology, its connections, and link indications. Then we'll test the connectivity between the topologies and a PDU (Protocol Data Unit), both simple and complex. Once we are done with that, you'll no doubt be curious to see how data moves from one node to another. That will be taken care of by the simulation mode of Packet Tracer. Finally, we'll clean up our workspace a bit by using the clustering feature.