Logical and Physical Design of Network Systems for BTEC Level 5 HND Diploma in Computing, Assignments of Wireless Networking

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Student name: Student ID: Class: Assessor name: Ngo Quoc Anh

Assignment 2

ASSIGNMENT 2 FRONT SHEET

Qualification BTEC Level 5 HND Diploma in Computing Unit number and title Unit 2: Networking Infrastructure Submission date Date Received 1st submission Re-submission Date Date Received 2nd submission Student Name Student ID Class Assessor name Ngo Quoc Anh Student declaration I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism. I understand that making a false declaration is a form of malpractice. Student’s signature Grading grid P5 P6 P7 P8 M3 M4 D2 D

Assignment Brief 2 Higher National Certificate/Diploma in Computing Student Name/ID Number: Unit Number and Title: Unit 2: Networking Academic Year: 2021 – 2022 Unit Assessor: Assignment Title: Networking Infrastructure Issue Date: April 1st, 2021 Submission Date: Internal Verifier Name: Date: Submission Format: Format: ● The submission is in the form of an individual written report. This should be written in a concise, formal business style using single spacing and font size 12. You are required to make use of headings, paragraphs and subsections as appropriate, and all work must be supported with research and referenced using the Harvard referencing system. Please also provide a bibliography using the Harvard referencing system. Submission ● Students are compulsory to submit the assignment in due date and in a way requested by the Tutor. ● The form of submission will be a soft copy posted on http://cms.greenwich.edu.vn/. ● Remember to convert the word file into PDF file before the submission on CMS.

Note: ● The individual Assignment must be your own work, and not copied by or from another student. ● If you use ideas, quotes or data (such as diagrams) from books, journals or other sources, you must reference your sources, using the Harvard style. ● Make sure that you understand and follow the guidelines to avoid plagiarism. Failure to comply this requirement will result in a failed assignment. Unit Learning Outcomes: LO3 Design efficient networked systems. LO4 Implement and diagnose networked systems. Assignment Brief and Guidance: Assignment scenario (cont.) The CEO Mr. Nguyen is happy with your first report and now he has asked you to analyse the specification from the institution, as given earlier. You need to design and implement the networking project within a given timeframe: Task 2 Design efficient networked systems:

• Prepare a written step-by-step plan of how you are going to design a Local Area Network including a blueprint of your LAN.
• Justify your choice of devices for your network design.
• Produce a test plan to evaluate this design for the requirements of bandwidth and cost constraints as per user specifications.
• Justify the security requirements and quality of services needed for selection of accessories.
• Suggest a maintenance schedule to support the networked system. Task 3 Implement test and diagnose networked systems:

Task 1 - Provide a logical/physical design of the networked system with clear explanation and

• INTRODUCTION
  • addressing table.
    • 1. Physical Topology
    • 2. Logical Topology
    • 3. Explain the difference between logical and physical design
    • 4. Discuss and explain the USER Requirement for the design
    • 5. Provide a logical design of the network base on user requirement
    • 6. Provide a physical design of the network base on user requirement
    • 7. Addressing Table
• Task 2 - Evaluate the design to meet the requirements - 1. Provide test plan - 2. Evaluate the design of the network
• Task 3 - Implement a networked system based on a prepared design - 1. Configure static interfaces at routers - 2. Configure dynamic interfaces at router - 2.1 Ground Floor (STAFF_1 to STAFF_35) - 2.2 First Floor (PCLAB_1 to PCLAB_25) - 2.3 Second Floor (PCLAB_26 to PCLAB_50) - 3. Test result (Ping)
• Task 4 - Document and analyse test results against expected results
• References

INTRODUCTION

The purpose of this assignment is: •Design an efficient network system

• Perform testing and diagnostics of networked systems. •Evaluation of networked systems and future improvement. **Task 1 - Provide a logical/physical design of the networked system with clear explanation and addressing table.

1. Physical Topology** A local area network's connected structure is referred to as its physical topology (LAN). The physical topology of a network is made up of the manner and kind of cables used to link the physical devices to one another. Comparatively, logical topology outlines how a network transfers device data and how media signal performance inside it. 2. Logical Topology A notion in networking known as logical topology describes the design of the communication system used by each node in a network. A network's logical topology can be dynamically maintained and changed using network hardware like switches and routers. Physical topologies, which describe the physical connections between each device in the network, contrast logical topologies. 3. Explain the difference between logical and physical design The portion of the design phase of the SDLC in which all functional elements of the system selected for development in analysis are described independently of any computer platform," according to the SDLC, is known as logical design. An abstract functional specification for a communications system is a logical architecture for a network. A logical design concentrates on the needs at a high level but lacks specifics like technologies and standards. Any view of a network can be included in a logical network design. There are numerous logical designs that can be combined to form a full company educational network. A perspective of a typical office telecommunications setup or a university campus network that links each building to the Internet could be depicted in the lower level designs. A logical design's ability to communicate all needs in a general way is a key feature. Without mentioning specifics, logical designs connect with abstract ideas like a network, router, or workstation. "The process of generating general concepts by abstracting common qualities of cases" is a

Figure 1 – Logical and Physical

4. Discuss and explain the USER Requirement for the design Any project, but particularly those involving computer systems, needs a solid list of user requirements to be successful. Because they do not accurately explain what the system should perform, here is where many projects fall flat. In reality, many systems have just been allocated a delivery date, a spending limit, and an ill-defined task. The cause of this issue is that: - Business consumers have limited knowledge of what a computer system could do for them; - Computer system developers rarely have as good an understanding of how a business operates and should operate. As a result paralysis sets in and business management time is concentrated on meeting timescales and budgets, rather than what is going to be delivered.

Figure 2 – User requirement

5. Provide a logical design of the network base on user requirement Figure 3 – Logical Network Design The above design article uses 3 routers to connect with 3 rooms, including Lab Student Computer room, Lab Staff Computer room and server room. The problem requires the student room to have 50 computers, so the design should use the PT switch. Each of these switches can connect up to 24 computers, so we will install 3 switches for the student room. Similar to the Lab Student Computer Lab, the Lab Staff Computer room is required to set up 35 computers and 3 printers. We will also install with 3 type PT switches in this room. 2 switches serve the needs of connecting to 35 computers and the other switch will be used to set up the printers. Server room will have 1 switch to connect to the servers and also be used PT switch type to satisfy requirements and comfort for future expansion intentions. The above design is used to use the network with star topology because this network is such that running the program at the fastest speed and when the network cable is broken will lose the connection of one machine, and the others will still works normally. Especially, this type of network can be expanded according to the needs of the user.

Floor ( PCs) PCLAB_4 Fa0/0 192.168.1.4 255.255.255.0 192.168.1. PCLAB_5 192.168.1.5 255.255.255.0 192.168.1. … … … … PCLAB_25 192.168.1.25 255.255.255.0 192.168.1. DNS_Server Fa0/0 192.168.100.1 255.255.255.0 192.168.100. Router Fa0/0 192.168.100.100 255.255.255.0 N/A Fa1/0 192.168.0.100 255.255.255.0 N/A Fa2/0 192.168.1.100 255.255.255.0 N/A Fa7/0 192.168.2.100 255.255.255.0 N/A Second Floor ( PCs)

PCLAB_

Fa0/

PCLAB_27 192.168.2.27 255.255.255.0 192.168.2.

PCLAB_28 192.168.2.28 255.255.255.0 192.168.2.

PCLAB_29 192.168.2.29 255.255.255.0 192.168.2.

PCLAB_30 192.168.2.30 255.255.255.0 192.168.2.

PCLAB_50 192.168.2.50 255.255.255.0 192.168.2.

Task 2 - Evaluate the design to meet the requirements

1. Provide test plan No Test Plan Purpose 1 Ping two computers on the same LAN Check the signal of computers on the same network 2 Ping two computers on different LAN Check the signal of computers on different network 3 Ping computer to printer on the same LAN Check the signal of computers and devices on the same network 4 Ping computer to printer on different LAN Check the signal of computers and devices on different network 5 Ping between server and computer Check if the signal of the computer is connected to the server or not 6 Ping between computer to DNS service Check the signal of computers on the same network

2. Evaluate the design of the network Three rooms are located on three distinct floors according to the design depicted in P5. The first room is the computer lab for students, the second is the computer lab for staff, and the third is the server room. The staff room contains 35 computers and 3 printers, the student room has 50 computers, and the other room is set up with servers and printers at the same time to address the issue. With the P5's design, more computers can be added in the future. One switch may link to 24 computers in the student lab's computer lab, which employs three similar switches. One student room can hold up to 72 computers in total. The student computer lab can accommodate present requirements and grow in the future. Only 50 computers are currently in the student room; therefore, 22 more computers may be added in the future. Based on its architecture, the Staff Lab is similarly set up with three switches like the Student Lab. But only 35 PCs and 3 printers were initially installed in the space. Therefore, it will be feasible to grow and link to 34 more machines in the future. **Task 3 - Implement a networked system based on a prepared design

1. Configure static interfaces at routers** Figure 5 - Static IP Figure 6 - ADMIN_1 Configuration

Figure 9 - Interface fa0/0 Configuration Figure 10 - Interface fa1/0 Configuration

Figure 11 - Interface fa7/ Figure 12 - DNS Server Configuration

2. Configure dynamic interfaces at router 2.1 Ground Floor (STAFF_1 to STAFF_35) Figure 15 - STAFF_1 Configuration Figure 16 - STAFF_35 Configuration

2.2 First Floor (PCLAB_1 to PCLAB_25) Figure 17 - PCLAB_1 Configuration Figure 18 - PCLAB_25 Configuration