02_Multistory_Building_LAN_Lab_Manual

02_Multistory_Building_LAN_Lab_Manual - Lab 2 Multistory...

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OPNET IT Guru Lab 2, Page 1 Lab 2: Multistory Building LAN: Daisy Chain Versus Collapsed Backbone Architecture Objective This lab teaches the application performance of two different network architectures: Daisy Chain and Collapsed Backbone Network. The book shows a collapsed backbone data network in which there is a core switch in the basement equipment room. The core switch is linked directly to a workgroup switch on each floor. Another option is to link the switches in a daisy chain. In this approach, the basement core switch is linked directly to the first floor switch, the first floor switch is linked directly to the second floor switch, and so forth. This lab shows the application latency introduced by connecting building switches in different ways. Overview The First Bank of Paradise’s Operations building has 10 floors, each having many users connected to a 10Base-T workgroup switch in the floor’s telecommunications closet. The users share an Oracle server and seven file and print servers in the basement. In Scenario 1, the switches on each floor are daisy chained to the core switch in the basement. We will see that this daisy chain approach introduces high application latency to users on the highest floor. In Scenario 2, the daisy chain topology is retained, but the core switch is moved to the fifth floor. We will see that this reduces latency on the highest floor but increases it on the bottom floor. In Scenario 3, the core switch is kept in the basement, but a collapsed- backbone topology is used, in which the core switch in the basement is linked directly to the workgroup switch on each floor. Lab Instructions
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02_Multistory_Building_LAN_Lab_Manual - Lab 2 Multistory...

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