There is a requirement in Excelfior Ltd. To rebuild their current network framework as there are different security issues and outdated hardware devices used. The company is a digital communication company and works in Melbourne for designing managing and hosting the website of the company. The number of departments in the organization should be identified and the developed working in the organization are identified for the management of the different operation. The security issues in the current network solution should be identified for the development of the network framework eliminating the current vulnerability of the network. The current network technologies that are needed for the development of the network solution should be identified for the analysis of the networking protocols that are needed for the configuration of the hardware devices. The report describes the methodology used for gathering the requirement and from the different level of user and the management staffs for improvement of their work efficiency. The accuracy of the analysis of the requirement helps in aligning the network according to the organization and reduce the error in the final solution developed.
For gathering the requirement the different methodology are used and an analysis is made on the current faults of the network and revise the current network solution to meet the aims and objectives of the organization. A set of questionnaires is distributed with the user and the management staffs quickly gather requirement. An interview is arranged with the stakeholders and brainstorming session is arranged for understanding the current problems faced by the user and prepare the network solution. The questions that can be shared with the users are created and listed below for the different users to identify the requirement quickly.
Users
Staffs
The arrangement of interviews with the stakeholders associated with the development of the project helps in clarifying the requirement and reduce the risk of change in the requirement during the progress of the project. The following flow chart is created for categorizing the requirement and development of the network assessment plan for the company.
The categories and requirements of the device needed for the preparation of the network solution are given below:
|
Device Name |
Device Type |
Requirement |
|
Router |
Cisco 2811 series router |
It is used for ensuring successful delivery of the data packets to the destination address of the network. |
|
Switch |
Cisco 2960 series switch |
It is used connecting the network with redundant links and ensure that if one of the link is failed the data packet can reach using the redundant link. |
|
Servers |
WEB Server, File Server, DNS Server, Email server |
The web server is used for hosting the website of the company. The file server is used for enabling sharing of files and information between the users connected in the network. The DNS server is used for creating a link between the URL and the IP address of the server. The email server is used for management of the communication between the users and |
Assessment Plan
|
Assessment goal |
Assessment |
Format of assessment |
Adaptations |
|
Requirement analysis |
Pre-assessment |
Distribution of questionnaire for analysis of requirement form the users |
Undertaking interview for the analysis of the requirement of the project |
|
Requirement gathering |
Pre-assessment |
Arrangement of interview for the identification of the requirement |
The team member response should be noted for the management of the needs and align it with the project development process. |
The network is designed after analysing the requirement from the different group of user and identification of the structure of the organization. The network is designed by dividing the network into smaller subnet according to the departments and each of the departments are connected using separate vlan. The switches that are user for the distribution of the network is connected with redundant link such that the uptime of the network is increased and there is no packet loss, jitter and delay in the network. Four server is used for the management of the front end and the back end operation of the company and a subnet plan is created for the configuration of the hardware interface and the vlans. The core multilayer switch is configured as a server for the management of the other switch connected in the network and sharing of the vlan information with the other switch. A switch isn also configured with DHCP for automatically assigning IP address to each of the device for the different vlans and reduce the effort of the network administrator for the management of the static IP address for the PCs. The network design is kept simple for easily troubleshooting the errors and increase the efficiency and performance of the network.
The performance of the network is the main criteria for the success of the network and it is measured using different network management and monitoring tools. A minimum bandwidth of 100 mbps is maintained for all the links such that there is no congestion in the network. Separate communication channels are used for each of the department such that the response time is minimum and there is no packet loss. The use of the network monitoring tool can help in identification of the error and consumption of the bandwidth for the management of the flow of data in the network. The delay in the network can be analysed using the ping test and management of the configuration for reducing the delay. The following table is created for the demonstration of requirement for accessing each of the service essential for the daily operation. The following table is created for the requirement of each of the service needed to be successfully delivered to the users connected in the network.
|
Required Bandwidth |
|
|
|
10 – 100 Kbps |
|
Messaging |
< 10 Kbps |
|
Web Browsing |
64 – 100+ Kbps |
|
Audio Streaming |
96 -160 Kbps |
|
VOIP |
24 – 100+ Kbps |
|
Video Streaming |
96 – 200+ Kbps |
|
File Sharing |
0 – infinity Mbps |
Conclusion
It can be concluded from the report that for the development of a scalable network design a detailed analysis should be made on the current and the future needs of the organisation. An analysis is made on the different requirement gathering techniques and the best methodology is selected for gathering requirement from different users and stakeholders connected in the network. Interviews are arranged with the stakeholders of the organization and users for meeting their expectation and develop the solution according to their requirement. An assessment plan is created for the identification of the requirement and the solution is created in simulation software for the identification of the performance metrics. The packet loss of the requirement, utilization, uptime, delay and packet loss are identified such that the network solution is developed and the network infrastructure is developed aligning the requirement of the organization. It is necessary to create a project budget by analysing the cost of the hardware that are necessary to be implemented for the development of the network.
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