Network Design proposal.docx - University of Maryland...

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University of Maryland University College Network Design Proposal CMIT 265-6382
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I. Physical Network Design A. Network Topology Business Needs The University of Maryland University College needs new computer labs and classrooms. UMUC has recently leased a building located in Adelphi, Maryland which will house the new space. UMUC specializes in educating busy professionals by offering career-relevant courses either online or through onsite traditional teaching. While many students choose to earn their degrees entirely online , some still opt for the traditional classroom environment. Due to U MUC’s unique educational opportunities, their enrollment has increased and new space is needed to accommodate the onsite students. This new space will need a secure network infrastructure in order to protect students and employee’s data and any intellectual property created on the universities servers and computers. The leased building is 2 levels with 22 rooms and totals 45,600 sq. ft. Within this building, UMUC will need 6 computer labs, 1 library, 2 server rooms and 7 offices. This building will house approximately 190 computers and will need to be outfitted with all the necessary cabling and networking equipment. Each classroom/computer lab will be on separate networks, as well as the library and offices. The offices need to be separate and secured from all other subnets. We will also need to implement an open Wi-Fi network, which will use a private IP address. UMUC requires a minimum of 40 Mbps internet connection with a backup capable of at least 20 mbps. Proposed Topology Our proposed network uses the 3-layer hierarchical network design model, as seen in figure 1. The three layers are the core, distribution and access layers and typically utilizes the star or hub and spoke topology. This model, or topology, helps to break down the network in to unique and separate layers which each focus on specific functions. The three layers are; Access layer – provides access to the end user or workgroup to your network and is where devices connect to the network. Distribution layer – This is the boundary or control point between the access and core layers, the computer middleman, and is where policies are applied. “The distribution layer in the 1 | P a g e
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campus design has a unique role in that it acts as a services and control boundary between the access and the core.” [1] Core layer – the core is the backbone of the network and “is in some ways the simplest yet most critical part of the campus. It provides a very limited set of services and is designed to be highly available and operate in an always-on mode. The core campus is the backbone that glues together all the elements of the campus architecture. It is that part of the network that provides for connectivity between end devices, computing, and data storage services located within the data center—and other areas and services within the network. It serves as the aggregator for all of the other campus blocks and ties together the campus with the rest of the network. The key
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