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IT INFRASTRUCTURE PRACTICAL ASSIGNMENT 1 INSTRUCTIONS Assignment Name: Alternating Bit Protocol (ABP) The Alternating Bit Protocol (ABP) is a connection-less protocol for transferring messages in one direction between a pair of protocol entities. It is a simple form of the Sliding Window Protocol with a window size of 1. The message sequence number alternates between 0 and 1. The JASPER applet supports the simulation of ABP with 3 modes of simulating messages delivery. Below are some experiments you will conduct to understand ABP and its commands. The first three experiments will give you a feel for using the simulator and relate to real-world scenarios. Subsequent experiments will be more complex, yet still relating to real events. Launching the ABP Protocol Simulator • Ensure that your default browser supports Java applets. Note that you may need to run Java in low security for the Java applets in this exercise to work properly. • For access to all simulations, click on the rotating globe at this book’s Companion Web site at http://williamstallings.com/BusinessDataComm/BDC7e-student/. • Then click on the link to the Alternating Bit Protocol Simulator. • This will launch the ABP Simulator applet along with a description of the main commands we will be using for our experiments.

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