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Computer Network I.

Computer Dynamics is a microcomputer software development company that has a 300-computer network. The company is located in three adjacent five-story buildings in an office park, with about 100 computers in each building. The current network is a poorly designed mix of Ethernet and token ring (Ethernet in two buildings and token ring in the other). The networks in all three buildings are heavily overloaded, and the company anticipates significant growth in network traffic.

There is currently no network connection among the buildings, but this is one objective in building the new network. Describe the network you would recommend and how it would be configured with the goal of building a new network that will support the company’s needs for the next 3 years with few additional investments. Be sure to include the devices and type of network circuits you would use. You will need to make some assumptions, so be sure to document your assumptions and explain why you have designed the network in this way.

Because we are considering the company present needs and over the next 3 years and not adding any addition investments, I would design the network using the traditional network design process. Computer Dynamics is centrally located in three adjacent five-story buildings, however there is no network connectivity amongst the buildings, which means we have to build a backbone to connect all three LANs. Before addressing the connectivity issues amongst the buildings, lets first look at the current topologies in each building; 2 Ethernet and token ring.

I recommend going with Ethernet, it is a simpler topology, which has less room for errors. With 100 computers in each building I would recommend 100base-T Switched Ethernet LANs, in all three buildings. The type of circuit is dedicated point to point. In order to network the three building we will have to construct a backbone. Building A: – 100base T Switched Ethernet LAN on each floor – Install a backbone switch – Each workgroup Switch for that floor will then connect to the backbone switch using CAT 5 – Install a router – The backbone switch is then connected to the router Building B: 100base T Switched Ethernet LAN on each floor – Install a backbone switch – Each workgroup Switch for that floor will then connect to the backbone switch using CAT 5 – Install a router – The backbone switch is then connected to the router Building C: – 100base T Switched Ethernet LAN on each floor – Install a backbone switch – Each workgroup Switch for that floor will then connect to the backbone switch using CAT 5 – Install a router – The backbone switch is then connected to the router The routers from building A, B, C will then connect to the core router and Internet router.

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