Introduction to Packet Tracer 3
In studying the behavior of computer networks and its associated devices, the most ideal way to learn is by connecting and configuring actual networking equipment. This isn't always feasible, and you may not have access to a lab with the neccessary devices. Packet Tracer 3 is an attempt to simulate the lab environment, giving users the ability to create and test the operation of a virtual network with a vast array of networking devices.
Packet Tracer 3 is an interactive tool for learning the basic operations of various networking devices at the data link and network layer of the OSI model. It is intended to teach beginning networking students how and why devices in a network work the way they do. A student using this simulation tool is able to build their own computer networks, and observe the behavior of data packets as they traverse through routers, switches, and other devices. The goal of this software program is to help students internalize the basic functions of the various networking devices and how they handle frames and packets.
Instructors can also use Packet Tracer 3 to assess the students' understanding of these concepts. The instructor can distribute saved networks that do not work as desired. The students are to examine the configurations of the network, as well as tracing packets through the network to determine the problems. Then, they can change the network to fix the problems.
Packet Tracer 3 can also be used by curriculum developers to make movies of packet flows in a network. They can use Packet Tracer 3 to create a network, and use a movie capture application to capture the packets traveling through the network.