LOGICAL AND PHYSICAL NETWORK DESIGNS   Term Paper ID:34643 Click to get this paper

Essay Subject: Explores the differences between the logical and physical design of networks includes an example ...... More...

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Paper Abstract: Explores the differences between the logical and physical design of networks, includes an example of the differences, and considers the relationship between the two. Fundamental design issues. Paper Introduction: Logical and Physical Network Designs Introduction Creating an effective network environment requires taking a variety offactors into account weighing these against resource constraints bothtime and money to determine the most effective architecture andeventually implementing a network that meets the needs of the organizationtoday but that can be scaled to meet the future needs as well Smallorganizations or individuals installing a home network may not recognizethe various stages involved with network design and planning but whetherthey engage in a formal design process or Text of the Paper: The entire text of the paper is shown below. However, the text is somewhat scrambled. We want to give you as much information as we possibly can about our papers and essays, but we cannot give them away for free. In the text below you will find that while disordered, many of the phrases are essentially intact. From this text you will be able to get a solid sense of the writing style, the concepts addressed, and the sources used in the research paper. At this point, nodecisions have been made regarding construction materials, and the layoutof the house may change many times as the client and architect seek torealize a common vision. Physical Design Physical design follows logical design and consists of identifying theactual technologies and products that will fulfill the logical design(McCabe, 2 3). (2 3). However, the goal of this processshould not be to place the hardware issues above the logical designstructure; instead, the physical design should seek to work within theparameters established by the logical design whenever possible. Networking components are defined by the network designer toprovide the optimum fit to the overall logical design, and include itemssuch as routers and switchers. Cisco Systems. Bridging the gap between system level and silicon front-end physical design. (2 3). Logical and Physical Network Designs Introduction Creating an effective network environment requires taking a variety offactors into account, weighing these against resource constraints--bothtime and money--to determine the most effective architecture, andeventually implementing a network that meets the needs of the organizationtoday, but that can be scaled to meet the future needs, as well. Networkdesigners need to be aware, however, that the physical design process mayyield changes to the logical design, as well (Designing, 2 2). EDN, 28, pp. This same approach exists in network design, as well. San Francisco: Morgan Kaufmann Publishers. Thus, a client may want astudy, a sewing room, a large "cozy" living room, a "gourmet" kitchen, andso forth in a Cape Cod style. During this phase of network design, hardware issues orspecific hardware is not yet selected, although it is likely that thenetwork designer will have a good idea of what is available to meet thelogical design needs. ReferencesClee, C. During this process, capacity issues are taken intoaccount as well as scalability issues and the needs of the organization inthe future with regard to both of these. The logicaldesign identifies the topology, addressing, switching and routing protocolsand even security issues that will be handled by the network ("Interviewwith," 2 3). Smallorganizations or individuals installing a home network may not recognizethe various stages involved with network design and planning, but whetherthey engage in a formal design process or not, nearly all networkadministrators address fundamental design issues. Some consideration is given to the final physicalappearance--one story or two, possible construction materials--but thegeneral contractor takes the logical design prepared by the architect, andmakes the physical design. Illustration The following illustrates a high-level logical design for a networkfollowed by a physical design (Designing, 2 2): [pic] [pic] Conclusion The logical and physical design processes are critical to successfulnetwork implementation. Only when network designers understand the logicaltopology of the network can they select the appropriate physical tools toimplement that network. Services withinthe topology applies to the services found within each layer. Retrieved from the Internet 2 Dec 2 3: http://www.ccprep.com/resources/cc- interviews/ priscillaOppenheimer.asp.McCabe, J. (2 2). Someservices--such as e-mail--may exist in multiple layers, for example.Service flows identify the interaction between the various clients andservers. 56-57.Designing ISP Architectures. This can be an iterative process, and one that cansave the organization significant time and money in the long run. Logical Design Although this discussion focuses on the issue of logical and physicaldesign within the context of networks, the concept of the two-prong designprocess can be found in numerous other applications, from printed circuitboards to residential construction (Clee, 2 2). Palo Alto, CA: Sun Microsystems. Many network architectsrecognize the need for a two-step design process--the logical and thephysical design--and while these two processes can influence each other,they are important in their own rights. When an architect setsout to design a house, for example, the client's needs and wants are takeninto consideration that leads to the blueprint. When creating the logical design, the network designer typically takesthe following into account: high-level topology, services within thetopology, service flows, and networking components (Designing, 2 2). J. Retrieved from the Internet 2 Dec 2 3: http://java.coe.psu.ac.th/SunDocuments/SunBluePrints/ isp_bp.pdf.Interview with Priscilla Oppenheimer. The physical design may require modifications to the logical design ifno acceptable solution can be found that meets the requirements of thelogical design. Innovations in technology that occur between the twodesign phases may yield more powerful or economical solutions that were notknown during the logical design phase. The architect lays those elements into ablueprint, which corresponds to the logical design. Thehigh-level topology addresses issues such as the layers that are containedin the network, such as content, application and services. This research considers thedifference between the logical and physical design of a network, andillustrates how those designs can impact the network's effectiveness. Network Analysis: Architecture and Design. (2 2, December 26). D. In this example, the physical design wouldinclude where walls will be placed, which walls will be load-bearing, howwiring will be run, which types of appliances will be installed, and howthey will be installed, etc. The logical design may take some of thesefactors into account, and the physical design may reveal some logicalaspects that need to be reworked, but the two are different processesrequiring different skills. If this paper is not what you are looking for, you can search again: Search for: or Click here to request an essay written just for you.

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