Nguyen is happy with your first report and now he has asked you to analyse the specification fromthe institution, as given earlier.You need to design and implement the networking project
Trang 1Higher Nationals in Computing
Unit 2: Networking ASSIGNMENT 2
Trang 2ASSIGNMENT 2 FRONT SHEET
Unit number and title Unit 2: Networking Infrastructure
Trang 3Grade: Assessor Signature: Date:
Trang 4Assignment Brief 2 (RQF)
Higher National Certificate/Diploma in Computing
Student Name/ID Number:
Unit Number and Title: Unit 2: Networking
Academic Year: 2021 – 2022
Unit Assessor: Tam Phan
Assignment Title: Networking Infrastructure
Issue Date: November 17, 2021
● 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, paragraphsand subsections as appropriate, and all work must be supported with research and referenced using theHarvard 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
Trang 5LO4 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 fromthe 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 ablueprint 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 peruser 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:
Implement a networked system based on your prepared design
Conduct verification with, e.g., Ping, extended ping, trace route, telnet, SSH, etc
Record the test results and analyse these against expected results
Investigate what functionalities would allow the system to support device growth and the addition ofcommunication devices
Trang 6Learning Outcome Pass Merit Distinction
LO3 P5 Provide a
logical/physical design
of the networked system
with clear explanation
and addressing table
P6 Evaluate the design
to meet the
requirements
M3 Install and
configure network services and applications on your choice
D2 Design a
maintenance schedule tosupport the networked system
D3 Use critical
reflection to evaluate own work and justify valid conclusions
Trang 7Table of Contents
Trang 8P5 Provide a logical/physical design of the networked system with clear explanation and addressing table.
1 Network design
Network design is a category of systems design that deals with data transport mechanisms As with other systems' design disciplines, network design follows an analysis stage, where requirements are generated, and precedes implementation, where the system (or relevant system component) is constructed The objective of network design is to satisfy data communication requirements while minimizing expense Requirement scope can vary widely from one network design project to another based on geographic particularities and the nature
of the data requiring transport
Network design is a complicated process involving evaluating and scoping the network to be implemented The design process is typically depicted in the form of a network diagram, which
is the blueprint for the physical implementation of the network Network design will typically include the cabling structure, a logical map of the network to be implemented, the quantity of network devices, the type of network devices, the location of network devices, the IP addressing structure, and the network security architecture
Network design divide into 2 type:
Logical design
Physical design
1.1 Logical design
Trang 9you would locate key distribution points for the network as well as what types of devicesand switches you should use to interconnect the plant It can also include how to do IPaddresses, VLANs, and switch configurations Below are key features of the Logical Design:
IP Address Scheme and Subnetting
VLAN Selection
Access and Distribution Layer Switch types, models and ports
Typical configurations based upon standards
Logical Plant Floor layout
1.2 Physical design
A Physical Network Design determines what the physical infrastructure needs to look like and how to interconnect all the devices Key features of the Physical Design are:
Trang 10 Space Planning, Pathways, Routing
Placement and Configuration of Zone Enclosures
Physical Media required based upon logical design considerations i.e fiber, copper,conduit types, etc
1.3 The difference between logical and physical design
The logical design is more conceptual and abstract than the physical design In thelogical design, you look at the logical relationships among the objects In the physicaldesign, you look at the most effective way of storing and retrieving the objects
The primary difference between logical network design and physical network design isthat of iterative production of a solution from the identification of a problem Forexample, when a business needs to share information in real-time with remote offices,they are thinking in terms of business first and technology second This is whereidentification of a problem begins, and as the problem is documented, it can beiteratively evolved from a logical solution into many possible physical designs Thelogical design of a network can be re-implemented with new technology, and yet thelogical design remains the same Logical designs can span generations of technology,
Trang 112 Requirement analysis from given scenario
The scenario that requires me to design a networked system that includes:
People: 200 students, 15 teachers, 12 marketing and administration staff, 5 highermanagers including the academic heads and the programming managers, and 3computer network administrators
Resources: 50 student lab computers, 35 staff computers, and 3 printers
Building: 3 floors, all computers and printers are on the ground floor apart from the ITlabs – one lab located on the first floor and another located on the second floor
I analysed this scenario and I decide to design a network system with:
Target:
All computers can connect to the Internet and communicate with each other
My design networking system is an optimal networking system and matches therequirements of the scenario
The administrator can access all computers
Structure:
Two Lab room is placed on Floor 1 and Floor 2
In-Ground, we have 4 room, including: IT room, Higher managers room, Marketing room,Teacher room
The second router is responsible for connecting the IT room with the server system (DNS,WEB, FTP,SMTP) to the building's network
3 routers are connected to each other through a ring structure
3 Logical design of the network system
3.1 Logical design diagram
Trang 13 The ground floor is divided into 4 main rooms (Teacher room, It room, marketing room, Highermanagers) The ground floor includes 35 computers, 3 printers, 4 servers, 4 switches, and 2router:
Higher managers: The higher managers room consists of 12 computers and 1 printer connected
to the switch using a star topology
Trang 144.1 Physical design diagram
Trang 16 The topology used here is the hybrid topology:
5 IP table of the network devices
Trang 17PC5 192.168.2.4 Ground–Higher manager
Trang 18PC28 192.168.4.7 Ground – Marketing room
Trang 212 Configuring network services and applications:
2.1 Configuring service and application:
Trang 22data of each department For security, the company can buy a hardware firewall to createrules, so it can prevent outside attacks.
Implement monitoring and automation
Due to an uptick in the complexity of modern networks that operate at higher layers withinthe OSI model, visibility into layer 7 data flows is becoming increasingly important Whenplanning for your new network, be sure that you have the necessary network performancemonitoring tools in place to help you quickly identify and resolve application-specificproblems in a short amount of time These tools help identify common problems so theycan be easily resolved using proactive automation techniques Increasing the growth of thenetwork, the switches and more access points will be added that helps the network toexpand meaning your business/organization also expand and the outcome of yourbusiness increases
Upgrade the network switch
Once you upgrade your switch you conserve energy efficiency was not a major concern inthe past, but network equipment manufacturers are now paying more attention to theissue and installing more efficient power supplies and fans The improvements are usuallynot sufficient to justify replacing a switch but they are a bonus when upgrading for otherreasons The decision to replace equipment should be made carefully even in the best oftimes Current conditions dictate extra diligence, but new technology and applications canyield overall savings that make upgrades worthwhile
Implementing a wireless router
Trang 23Current conditions dictate extra diligence, but new technology and applications can yieldoverall savings that make upgrades worthwhile
The network is configured with a wired router with the latest and new technology ofwireless routers, you need not have a USB or any other means for the port and be involved
in carrying different types of devices for a file transfer, with the latest wireless connection,you can easily transfer your files from one source to another Different types of clouds likeOneDrive, Google Drive, iCloud are on your devices these days where you can store as well
as let other people see your files without having to have a single device for putting in aport, sharing files and then removing it With the advancement of Wireless routers, onedoes not need to have any care or worry about me
Upgrade
With the advancement of Wireless routers, one does not need to have any care orworry about the surroundings, wireless routers whenever they are able to work cangive you a tremendous amount of speed without having to have any wires attached toyour device All you have to have is your device and you can move freely from oneplace to the other, within the required range without having to worry about anything,
Trang 24movement as well as peace of mind with the latest technology of wireless routers,therefore, students will be able to use the PCs of the college from anywhere in thecollege Discuss significance upgrades and security requirements in your network.
D2 Design a maintenance schedule to support the networked system.
Periodic maintenance: This is a package support management depending on the annual
agreement with the supplier We regularly send experts to inspect the entire framework and
to investigate support issues on a given day:
1 Network Maintenance Plans:
2
Trang 251 www.cisco.com,(2021).What Is Network Design? [online] Available at:
https://www.cisco.com/c/en/us/solutions/enterprise-networks/what-is-network-design.html[Accessed December 10, 2021]
2 www.ukessays.com, (2021).Logical and physical network design [online] Available at:
https://www.ukessays.com/essays/computer-science/logical-and-physical-network-design.php [Accessed December 10, 2021]
3 cityrailaltimas.blogspot.com (2021) Recommend Potential Enhancements For The Networked
Systems [online] Available at:potential-enhancements-for.html [Accessed December 13, 2021]
https://cityrailaltimas.blogspot.com/2021/04/recommend-4 solutionsreview.com, (2021) 7 Ways to Improve Your Company’s Network Performance
[online] Available at: your-companys-network-performance/ [Accessed December 13, 2021]
https://solutionsreview.com/network-monitoring/7-ways-to-improve-5.