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iTech Network Design Proposal

   

Added on  2020-02-18

25 Pages3387 Words130 Views
Electrical EngineeringWeb Development
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Topic: IT InfrastructureStudent Name: Subject:Task:Due Date:
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Table of ContentsIntroduction.................................................................................................................................................3IT Infrastructure Components......................................................................................................................4Three-Layer Hierarchical Model.................................................................................................................6Geographical scope of the network.............................................................................................................8Dedicated server design proposal..............................................................................................................11Logical Design for dedicated server design...............................................................................................11Cloud Based Design..................................................................................................................................14a)Navisite..........................................................................................................................................14b)VMware Cloud Foundation...........................................................................................................14Network simulation...................................................................................................................................16Recommendations and Conclusions..........................................................................................................23Reference...................................................................................................................................................24
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IntroductionComputer network is the interconnection of computing devices such as data, printers, servers forcommunication and of sharing resources [ CITATION Bra171 \l 1033 ] in an organization. There aremany designs or topology related to organizational computer networking like iTech Company.This document therefore, gives a network design for iTech Company that ought to beimplemented either using dedicated server or cloud hosting approach for better services for theorganization.Project ObjectiveThe proposed network design project is focused on achieving certain objectives that are veryimportant for tiTech organisation in dispensing its functions more efficiently and effectivelycontrary to the current situation [ CITATION Col12 \l 1033 ]. The main objectives for this projectare:ScalabilityThis involve enhancement of accommodation of additional network devices without affecting thestructure of the set up network design. Effective servicesThe new project is aimed at ensuring that iTech company is able to conduct is functionseffectively without encountering network failures or delays as a result of network inefficiency.iTech Network SecurityThe proposed network design should provide a secure environment for all the operations andfunctions of iTech Company. The network also should be secure in order to avoid external orinternal attacks towards the company IT infrastructureEasy troubleshooting and managementThe proposed design should be easy to manage and also troubleshoot in case of any problem.The network design should provide clear monitoring techniques across all the networks of iTechCompany.This report covers a number of tissues related to the proposed design. These are; analysis of theIT infrastructure components need, three-layered hierarchical network model design, dedicatedserver design, cloud-based network design and DCB network simulation using cisco packettracer. Recommendations and conclusions are also provided in this report.About of iTech CompanyThis is a software development related company being located between three adjacent five-storybuildings in an office park. The company currently has 900-computers in its network with eachbuilding approximately having about 300 computers. The three adjacent buildings of ITechCompany have similar Local Area Network with Data Center Buildng (DCB) located on thesecond floor of one of the buildings. The data center provides services such as web services and
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emailing as well as dynamic IP addresses, DNS and file sharing services to iTech employees.iTech domain name is www.iTech.org.au. And the company is currently experiencing challengesas a result of its poorly designed network.IT Infrastructure ComponentsThese are various hardware, software as well as facilities required for development, testing,monitoring and control of computer network in an organisation [ CITATION Rus17 \l 1033 ]. In thecase of iTech Company, the following are components of IT infrastructure that will be neededfor designing the new network.Computer Hardware ComponentsThese are more important IT infrastructure of network designs. They consist of various hardwarecomponents such as:a)SwitchesThis hardware device provides connectivity of devices on a Local Area Network (LAN).[ CITATION Bra171 \l 1033 ]. In the case of iTech Company modular switches will be moreappropriate as they enhance scalability since the number of ports can be increased in the case ofadditional device to the network.b)FirewallThis is a security device that will be placed in the network and it filters what comes in and whatgoes out of iTech Network thus protecting the company from attacks or unautorised persons.c)Fiber cable This serves as a transmission media that connects various networking devices to the network.Fiber cable will be used to connect network backbones from the core layer to distribution layerand finally to the access layer of the iTech network design.d)Wireless Access Point (WAP)This is a networking device that creates wireless LAN referred to WLAN. This device broadcastWi-Fi signal within the buildings thus allowing more end user devices to be connected to thenetwork.e)Data centerThis is where all the iTech Company servers will be located for access and storage of information by iTech employees or clients.f)RouterThe routers are devices that will connect the network to the internet. The router will provideembedded device encryption acceleration, slots for digital signal processing (DSP) slots, firewall,prevent intrusion, processing call, application services and voice calls.
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g)Server/Storage ComponentsThese are components that manage access to shared resources and services in a network. Thisinclude the mail server, DNS server, DHCP server, Web server, file server, Database server andprint server.Software ComponentsThese are server operating systems, Network Operating System (NOS) and some directorysoftware which are essential in managing resources shared across the iTech Network [ CITATIONMba12 \l 1033 ].
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Three-Layer Hierarchical ModelThis model breaks down organization network into three layers. With each layer performingspecific functions in simplifying the network design thus making it scalable and manageable[ CITATION CIS14 \l 1033 ]. These layers are; Access layer which provides direct end user connection to the rest of the network.Distribution layer which connects devices at access layer enabling connectivity of access layer tonetwork servicesCore layers. This connects distribution layers’ devices to large Network in the organization.This model is diagrammatically represented below.Therefore, if the proposed network design for iTech Company is implemented using thisapproach it will make it easy for iTech Company to manage the whole network as well asenhance extensibility of their network in future. The company will be able to manage the bignumber of workstations in its buildings as well as improve service delivery speed.Current iTech InfrastructureThe current network design is not well organized. The network can be said to have a Flatnetwork model in place which treats iTech networks to be on the same level. This makes itharder to manage iTech network and also perform its operations effectively. The current poorlydesigned network at iTech Company cannot be extended effectively without affecting the wholenetwork operations. The network is difficult to trouble shoot considering there is no clearstructure of the design and this make it more vulnerable to problems. The network can be said tobe of this model.
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