" IT NETWORKING DESIGNING Executive SummaryThe environment of the Private high school is well investigated. Various facts of thenetwork design are shared and network requirements are fulfilled based on the facts. Topdown method is used in this network design with reasons. The organisational setup isdescribed. The user requirements such as Mandatory requirements, Desirable requirementsand Wish list requirements are analysed. The capacity of the network also estimated. Thecurrent environment setup is analysed and the network design for future environment isproposed. The requirements for the proposed network is analysed with hardware, softwarerequirements. Various devices are selected to implement the network. Suitable WAN isselected and are connected with core switch. Various design issues are investigated. The costof the network devices areapproximately 3000 USD. The main purpose of this networkdesign is fulfilled and is implemented successfully. The business purpose of the network isfulfilled by improved communication and videoconferencing between the schools. Theschools information’s are protected by using security measures. The library, computer lab ofthe current network is upgraded with modern network. The wireless network can beaccessible for all class rooms and outdoor areas. The students can access the resources fromthe school and home. Multimedia class rooms are implemented for the excellenceclasses(Watanabe, 2004).2 Table of Contents1. Introduction ...................................................................................................................... 52. Organisational Description ............................................................................................. 63. Analysis of User Requirements ....................................................................................... 73.1 Mandatory requirements ............................................................................................. 73.2 Desirable requirements ................................................................................................ 73.3 Wish-list requirements ................................................................................................ 73.4 Capacity Estimation .................................................................................................... 74. Description & Analysis of Current Setup ...................................................................... 85. Description of Proposed Network................................................................................... 95.1 Hardware ..................................................................................................................... 95.2 Software .................................................................................................................... 105.3 Cost Estimation ......................................................................................................... 115.4 Topology ................................................................................................................... 116. Conclusion ...................................................................................................................... 137. References ....................................................................................................................... 13 3 List of Figures S. No Figure Name Page Number1. Top-Down Methodology Diagram 42. Cisco 2503 Routers 73. Cisco catalyst 6500 series core switch 74. Cisco Aironet 3602I series access point 75. RJ45 Connector 86. Cabling Cisco compatible SFP 87. Server 2016 Microsoft Office 88. Logical design diagram 99. Physical design diagram 104 1. IntroductionA private school has 500 students with three buildings. The distance between eachbuilding is 40 km. The school has two computer labs, staff room and library which isconnected by a network. The network is installed in the year of 2011 there is no connectionbetween the labs. So the management wants to provide a wireless connection for the school.The network design has to be developed for the new school. In the new school the teacherswill have laptops and iPad instead of computers. There are three modern labs for multimedia,programmers and business students. Each lab will have 30 computers(Cook, 2003).The new school have to be connected with the other modern schools through WANwith video conferencing facility. The other modern schools are located approximately200km. The wireless network design of the school will fulfil the requirements of the modernschool. The new network design will have wireless connection, protected school information,the student and teachers access the wireless network in all class rooms and outdoor areas. Itwill have high network performance with no point of failure. Top down methodology is usedfor this network design. The reasons to use this methodology are explained. The networkdesign should be able to support for the next five years.Top-Down MethodologyTop down approach mainly focus on the goals of the school. The modern school havemany users of internet. The students and staffs will use the internet for study purpose. Theinternet facility is must for the lab. The communication between the labs is essential.Potential future of the school also considered in this top down approach. This approachrequires initial analysis to evaluate the specific requirements of the network design. Thenetwork designer should take care of all possible applications and services(Oppenheimer,1999). In the Private school the students and staffs will use the internet for study. So it isimportant to provide good internet facility for the users. The staffs and students willdownload and upload of study materials. So the connections should be good to use all theservices. For this environment Top down approach is the best methodology. The OSI diagramis shown below for reference.5 In this OSI diagram the business objectives are starts from the application layer. Theuser experience is the main role in this scenario. So the network design starts from theapplication layer and it goes down. The specifications of the layers will be adjusted in thenext layers of the OSI model.2. Organisational DescriptionThe private high school has three buildings. Each building is 40 meters apart from theother buildings. This school has 500 students with two computer labs. Each lab has 20computers with 1 laser printer. Staff room with 10 old computers. It is connected by a simplehub. This old network is installed in the year of 2011. The computer labs have no connectionwith other labs and there is no wireless network. So the students cannot use their laptops. Sothe principle of the school wants to replace the existing network into modernnetwork(Beasley, 2009).The modern network will have the following features. The staffs will have laptops andiPad. It will have three computer labs with 30 computes in each lab. There are three buildingsin the modern high school. One building is allocated for multimedia students computer lab,6 second building will have lab for the programmers and the third building will have the lab forBusiness students. The staffs and students from each building have different needs on thenetwork. This modern high school need to be connected with the other modern high schoolsthrough WAN. There will be 200km distance between this private school and other modernschools. They have to be linked with the network formed by other schools(Rackley, 2007).3. Analysis of User RequirementsThe requirements of users are categorized into three types(Chandra, 2008). They are listedbelow.3.1 Mandatory requirements? The performance of the network should be high? There should not be any point of failure.? The technologies must be excellent.3.2 Desirable requirements? Good communication facility between the schools with video conferencing.? The school information’s must be protected.? The computers labs and libraries have to be upgraded to modern network.? The wireless network must be available in all the class rooms in the school and someoutdoor areas of the students and teachers(Karris, 2009).3.3 Wish-list requirements? It should double the enrolments of the class room.? The new school must double the size of old private school.? The students have access for the study requirements in school and home.? There should be a multimedia classroom for excellence classes.3.4 Capacity EstimationThe public school has staffs and 500 students. Every students and staffs access thenetwork at the same time. The users will access the network at the speed of 5Mbps. So theInternet service provider able to provide internet access for all the users. The new school hastotally three labs and each lab has 30 computers.The staffs have laptops and students alsohave laptops/iPad. The library has 20 computers. The other modern schools are also linked inthis network. So the wireless connection should be able to provide internet access to all the7 users at the high speed. The network should be available in all class rooms with the samespeed.4. Description & Analysis of Current SetupThe Private high school has two floors and three buildings. The private school is usingcurrent wired network is old. So it needs to replace the new technologies and Wirelessconnection. The school has 500 students and it has Library, Staff room, and computer labs.Here the private school had two computer labs for 500 students, each computer labs has 1printer and 20 computers. The libraries also have 1 printer and 20 computers and the staffroom has 10 desktop computers. The library and computer labs are recently upgraded. Inprivate school wired network was installed in 2011. It uses windows server 2008 operatingsystem. The private school use wired network connection. The wired network uses oldtechnologies and topologies. The network uses very simple switch and hubs. The computerlab does not connect to other computer labs because the private high school not having thewireless connection. So the students cannot login in their laptops. The private high schoolneeds to modify the network design for the new modern school. The analysis of privateschool has no using wireless connection so the student does not login using their laptops. Sothese assignments create the new wireless connection for new modern school i.e. existingprivate school also connect other modern schools(Networking complete, 2000). The privateschool needs to improve the, ? Technology? Communications? Wireless? VideoconferencingThe private high school upgrading the designs are a current wired network, Library andcomputer labs. It needs to availability for wireless network connection and Networkperformance. The private high school must be upgrading the wired connection to wirelessconnection. It requires using a wireless connection for students and teachers communicationsand also protects the school information and IT assets. The current topology must need toupgrade the new network design topology(Nikolaidis, 2004). 8 5. Description of Proposed Network5.1 HardwareRouters - Cisco 2503The Cisco 2053 series routers can be used to connecting the various WANs andLANs.Core Switch –Cisco Catalyst 6500 series Core and Distribution switchesThe Cisco Catalyst 6500 series Core and Distribution switches involves theenvironmental specifications. It requires to dealing with following specifications. These areStorage temperature, Relative humidity, Storage height and Operating temperature(Zheng,2010).Wireless Access point- Cisco Aironet 3602I Series access pointThe Cisco Wireless access points offers to Good band width control, Effective userauthentication and Good band width control. It supports IPv6, Good wireless encryption andLAN gigabit Ethernet.9 Connector - RJ45 ConnectorThe RJ45 connector is specifying the tools for cables. The connector has two maintools such as crimping tool and crimping pins. The crimping tools are used to cutting theedges and place the correct position. The crimping pins used to place the connectorchannels(Cisco Networking Academy Program, 2003).Cabling - Cisco Compatible SFPThe cabling is used to create the higher standard network. Here using cabling is CiscoCompatible SFP(Grillo, 2001).5.2 SoftwareServer 2016 Microsoft Office10 It is the upcoming operating system. The windows server 2016 was developed bywindows as part of the Microsoft. The authentication of windows user stored in LDAP(Lightweight Directory Access Protocol) directories. The windows server similarly adoptedby SQL and BizTalk Server 2013.5.3 Cost EstimationDevice Numbersof Cost in USD Total CostdevicesCisco 2503 routers 1 580 500Cisco Catalyst 6500 series core 1 1000 1000switchesCisco Aironet 3602I series access 1 900 900pointRJ45 Connector 600 10/100 60Cisco Compatible SFP 1 600 6005.4 TopologyThe network design has two topology diagrams(Li and Zhang, 2009). They are? Logical topology diagram ? Physical topology diagram.Logical Design Diagram11 The logical design of the network is shown in the above diagram. The Private schoolis function with three buildings each building has one lab with 30 computers. Lab one is formultimedia students, Lab 2 is for Programmers and Lab 3 is for Business students. Videoconferencing is connected between the buildings. Other modern schools are also linked withthis Private school through WLAN. The server is connected with the router and the coreswitch is has Wireless LAN which provides wireless access of network in all the class roomsand in some outdoor areas(Diebold and Yilmaz, 2011).Visio File is attached.Physical Design DiagramExample12 The physical design diagram for modern high school has three computer lab buildingsuch as first building for programmers, second building for Business students and thirdbuilding for computer labs. Each computer lab has 30 computers. The modern schoolteachers and student are communicating by using wireless connection(Harms and Hu, 2003),(Liu and Tobagi, 2008).6. ConclusionTop down methodology is used for this network design. The reasons are explained. Thedescription of organisation is added. The user requirements are analysed and are proposed inthe network design. The logical and Physical network designs are implemented for thisnetwork. The current environment is analysed and they are explained. The proposed networkdesign for this environment is given with suitable solutions. The necessary network design,cabling design, expected cost of the network also implemented.The design isevaluated(Rosenberg, 2005).7. ReferencesBeasley, J. (2009). Networking. Upper Saddle River, NJ: Prentice Hall.Chandra, P. (2008). Wireless networking. Amsterdam: Elsevier/Newnes.13 Cisco Networking Academy Program. (2003). Indianapolis, Ind.: Cisco.Cook, J. (2003). Networking. Rochester, MN: IBM International Technical SupportOrganization.Diebold, F. and Yilmaz, K. (2011). On the network topology of variancedecompositions. Cambridge, Mass.: National Bureau of Economic Research.Grillo, D. (2001). Wireless networking. Computer Networks, 37(1), pp.1-4.Harms, J. and Hu, C. (2003). Physical network design to facilitate capacityreallocation. Discrete Applied Mathematics, 129(1), pp.129-153.Karris, S. (2009). Networks. Fremont, Calif.: Orchard Publications.Li, L. and Zhang, C. (2009). Optimal Channel Width Adaptation, LogicalTopology Design, and Routing in Wireless Mesh Networks. EURASIP Journal onWireless Communications and Networking, 2009, pp.1-12.Liu, H. and Tobagi, F. (2008). Physical topology design for all-opticalnetworks. Optical Switching and Networking, 5(4), pp.219-231.LIU, J. (2008). ICMP-based method for logical network topology discovery andanalysis. Journal of Computer Applications, 28(6), pp.1498-1500.Networking complete. (2000). 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