Network Design Report for ICT106 Data Communications and Networks
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Added on  2023/04/24
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This report provides a detailed analysis of the network design for Top Network Company (TNC) following the requirement of the organization and dividing the network based on the number of users per each department. It includes LAN design, IP addressing plan, LAN topology and protocols, and hardware selection.
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Running head: ICT106 DATA COMMUNICATIONS AND NETWORKS Network Design Report Name of the Student Name of the University Author’s Note
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1 ICT106 DATA COMMUNICATIONS AND NETWORKS Table of Contents 1. Introduction............................................................................................................................2 2. Local Area Network: Design and description of the local area network...............................2 2.1. LAN Design showing workstation and interconnected devices.....................................2 2.2. LAN topology and Protocols..........................................................................................4 3. Hardware................................................................................................................................5 4. Conclusion..............................................................................................................................6 Bibliography...............................................................................................................................8
2 ICT106 DATA COMMUNICATIONS AND NETWORKS 1. Introduction Currently Top Network Company (TNC) had its office in a three storied building and it has three departments each allocated a separate floor. There are 84 workstation connected at the Administration department, 170in the marketing floor and 255 in the Sales floor. Each of the department of the organisation used separate application server for the management of data and the data is needed to be transferred to the other department for increasing the efficiency of communication. The access of internet is needed to be provided to all the workstation and the local area network is developed following the requirement of the organization. An Ip addressing plan and a design for the local area network is created after the identification of the requirement. The user centred design principles are followed for the development of the network design. Users connected in different department are provided access to the WEB and the Email server installed in the DMZ zone of the network. 2. Local Area Network: Design and description of the local area network 2.1. LAN Design showing workstation and interconnected devices
3 ICT106 DATA COMMUNICATIONS AND NETWORKS The above network diagram is created following the requirement of the organization and for each of the floors separate switches are used and a central switch is used which is needed to be configured with VTP server and VLAN with the name of the department. The configuration of the switch with server helps in transmitting the VLAN information to the layer 2 switch that are connected with it. The IP address is subnetted into three subnet such that each of the department have different range of IP address. The router is also needed to be configured with DHCP pool for automatically assigning the IP address to each of the VLAN. Redundant link are used for interconnecting the network device such that the network uptime is increased and the risk of packer loss, jitter and congestion in the network is eliminated. IP addressing Plan Network Address:192.168.100.0/22 Number of IP addresses available in major subnet:1022 Required number of IP addresses:510
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4 ICT106 DATA COMMUNICATIONS AND NETWORKS Number of IP addresses available in allocated subnets:890 About88%of major network address space available is used About57%of subnetted network address space is used Subnet Name Need ed Size Alloca ted Size AddressMa sk Dec MaskAssignable Range Broadcast Administr ation 85126192.168.1 03.0 /25255.255.25 5.128 192.168.10 3.1- 192.168.10 3.126 192.168.10 3.127 Marketing170254192.168.1 02.0 /24255.255.25 5.0 192.168.10 2.1- 192.168.10 2.254 192.168.10 2.255 Sales255510192.168.1 00.0 /23255.255.25 4.0 192.168.10 0.1- 192.168.10 1.254 192.168.10 1.255 2.2. LAN topology and Protocols The local area network is developed for covering the building and connect each of the workstation such as the servers, computers and the printing device for exchanging files and informationbetweeneachother.Ahierarchicalnetworkdesignisfollowedforthe
5 ICT106 DATA COMMUNICATIONS AND NETWORKS development of the local area network and it is an useful network design tool for the development of the network infrastructure. The network is developed with the application of modularity, resiliency and flexibility such that the abnormal conditions can be handled. There are different LAN protocols that works in the different layers of the OSI model. The specification of the LAN is needed to be identified for the implementation of the networking protocols and configure the network following the needs of the organization. The protocols are used for creating a formal policy and standard comprising procedures, formats and rules for defining the communication between the network devices connected in the Local Area network. The protocols are used for governing the end to end processes for securing and management of the data communication. The email servers connected in the network is needed to be configured with SMTP protocol and the WEB server would be configuredwithHTTPSconfigurationforenablingsecurelytransmittinginformation betweenthedifferentdepartmentsoftheorganisation.Therearedifferentnetwork management protocols such as ICMP and SNMP that are used for troubleshooting the errors in the configuration in the network. 3. Hardware Name of the deviceFeatures and PortsJustification Cisco2811Series integrated service router Embedded Ga or Fa port, AUX port and Console Port Itisselectedsinceitis suitableforsmalland mediumsizedbusinessand provides support for different concurrentservicesuchas voice and security. Its density canbeincreasedwiththe
6 ICT106 DATA COMMUNICATIONS AND NETWORKS addition of high speed WAN interface card slots. CiscoCatalystWS- C2950S 24 Fa ports Support of VLAN This selected since it supports VLANconfigurationand suitableforthesmalland mid-sizedofficesfor selectingtheright combination of protocols for the network edge. It can be configured for voice and data serviceandadditional security configuration can be addedforenablingsecurity filteringandincreasingthe efficiency of the network. CiscoWS-C3550-XL-EN 3500 24 Fa port 2 ga port Support of VLAN It is used for increasing the availabilityofthenetwork andimprovethequalityof serviceforenhancingthe different network operations. 4. Conclusion ThenetworksolutionforTopNetworkCompanyisdevelopedfollowingthe requirement of the organization and dividing the network based on number of user per each department. The local area network is developed after a detailed analysis of the building floor plan and analysing the users who are provided the permission for accessing the servers. The
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7 ICT106 DATA COMMUNICATIONS AND NETWORKS local area network of the organization is created after analysis of the user needs and identification of the network device that can be used for serving the needs of the user. For the development of the local area network design solution for TNC a preliminary design of the network is created and an IP addressing scheme is developed following the requirement of number of workstation needed to be connected to each of the subnet. A research is done on the local area network topology and protocol for the development of the network. The hardware that are essential for the development of the network should be identified and justification for the choice of hardware is given in the network.