Abstract: This paper introduces the functions and features of the imitator called Packet Tracer, designs a design proposal of bicore and multiexport for campus network. Makes use of Packet Tracer to accomplish the topology and configuration of the whole project, and test its functions in detail. The test shows the feasibility of the design scheme of campus network, and the importance of Packet Tracer in the computer network courses.

Key words: packet tracer, network scheme, network simulation, campus network