Network Design, Implementation and Administration, Network System Administration

Notes for students
• For undergraduate modules, a score above 40% represents a pass performance at the honors level.
• For postgraduate modules, a score of 50% or above represents a pass mark.
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to modules at Levels 0, 4, 5, 6 submitted late (including deferred coursework, but with the exception of
referred coursework), will have the numeric grade reduced by 10 grade points until or unless the
numeric grade reaches or is 40. Where the numeric grade awarded for the assessment is less than
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• Late submission of referred coursework will automatically be awarded a grade of zero (0).
• Coursework (including deferred coursework) submitted later than five days (five working days in the
case of hard copy submission) after the published deadline will be awarded a grade of zero (0).
• Regulations governing assessment offences including Plagiarism and Collusion are available from
https://www.herts.ac.uk/about-us/governance/university-policies-and-regulations-uprs/uprs (please
refer to UPR AS14)
• Guidance on avoiding plagiarism can be found here:
https://herts.instructure.com/courses/61421/pages/referencing-avoidingplagiarism?
module_item_id=779436
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further details, please consult the relevant Module Handbook (available on Studynet/Canvas, under
Module Information) or ask the Module Leader.
School of Physics, Engineering and Computer Science
Assignment Briefing Sheet (2020/21 Academic Year)
This Assignment assesses the following module Learning Outcomes (from Definitive Module Document):
LO1: Have a knowledge and understanding of the issues involved in the design, realization /administration, and management of a networked computing environment.
LO3: Be able to design, install and support a local area network based on established user requirements
Assignment Brief:
This coursework is worth 70% of the overall mark for the module. Some parts of the coursework will require research beyond the material discussed in the course. This is intended and is part of the assessment. See attachment for further information.
Submission Requirements:
This is assignment is to be submitted and marked anonymously. Students should ONLY use their student ID number to identify themselves on their work. Work submitted via Canvas for anonymous marking will automatically have an anonymity number allocated to it.
When you are ready to submit your CW1, you will be required to submit the following:
• Technical reports in pdf format
• A zipped folder containing the files of the implemented network.
• A short video demo showing the tests performed on the implemented networks in Task 3
• A video demo showing the network administrative tasks carried out from Task 4
The name of the files submitted should have your student registration number as part of the name (e.g. TechnicalReport_12003456.pdf, completedNetwork1_12003456.pkt – this is for Cisco Packet tracer, Test_demo_12003456.mp4 etc.)
Marks awarded for:
This assignment is worth 70 % of the overall assessment for this module.
Marks awarded for:
see attached
Type of Feedback to be given for this assignment:
Summative feedback
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Assignment task Description:
You are a newly employed graduate network engineer working for an IT Network Corporation. You are presented with the following challenge: A businessman wants you to design, install and support a secure computer network for his primary business site. The office building for the primary site was newly purchased and it will require a fully functioning secure network in order to run his business. The floor plan can be seen in the image below:

Figure1: The floorplan of the primary business site:

Image from: https://www.smartdraw.com/office-floor-plan/examples/office-floor-plan/


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To proceed with the given assignment, your line manager wants you to carry out four main tasks.

Task 1: Research
Firstly, he has tasked you to carry out a comprehensive research on some issues involved in the design, administration, and management of a networked computing environment. You can use the given case study as a reference. Ideally, he wants your research to focus on the following issues:
• Network Design and System Management
• The Scalability and Extensible Network
• Security in Computer Networks
• Network Redundancy failures
You will be expected to demonstrate a very good knowledge and understanding of these issues which will be evident from the findings of your research. Your line manager expects you to present your research findings in a comprehensive technical report.
Task 2: Network Designs
Your line manager wants you to provide a detailed network design and a possible alternative design for the primary business site of the company using the provided office floor plan as a guide. The customer has provided the following specifications for the network.
Network Specifications: Primary business site
• One of the three offices in the left side of the building should be used as the comms.
• There should be at least 15 workstations which must include one for the reception area and conference room respectively. Aside from the conference room, it is assumed that all PCs operate critical functions.
• Four of the workstations should be running Linux OS i.e. Debian & Ubuntu LTS versions.
• In the comms room there is a need for at least one hardware firewall to be connected to the border router and the main router can server as the DHCP server.
• The network must have a DNS server, FTP server and two 24-port switches.
• Most core network devices should be in the comms room. They will need racks. It is expected that most of the networking infrastructure should be stored in the same room unless in exceptional cases.
• The LAN must be 100% redundant in the case of a single point failure. Redundancy is critical. In the case that one of the circuits fails the other one must be up and able to warn for back up.
• There must be a backup server and print server.
• Cost is not a factor. However, you are expected to choose your network devices sensibly i.e. a carrier class router should not be used when you only need an enterprise class router.
• You have to consider scalability for the future
• The main server required for network administration must be Linux based (i.e. Debian
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or Ubuntu OS).
• You must provide brief description of the software needed. For example, Server OS or VM technologies.
• There is a 10GbaseLR 10GE (SFP+) connection that will need to be connected to an ISP provider router. This connection comes to the comms room from the ISP’s building.
Task 3: Network Implementation and Testing
Your line manager wants you to implement the network design on a virtual platform in order to test some of the required network services and functionalities before you can carry out the physical network installations. You are expected to implement and test the proposed network using an Open-Source network simulator or emulator such Cisco packet tracer, GNS3, Boson NetSim, VIRL, VIRL, CORE, etc. A list of emulators and simulators can be found here: list of emulators & simulators.
Furthermore, you are expected to create a comprehensive test and evaluation plan of the network designed and implemented services.
Task 4: Network Administration
Finally, your manager wants you to implement and execute the following administrative tasks on the network implemented on the virtual platform. This is to ensure that the same tasks can be carried out when the physical network is implemented. You are also expected to carry out some further administrative tasks on the Linux server that is designative for administrative purpose only. In order to ensure you can perform the required administrative tasks, you are expected to first execute the tasks on a Linux server installed on a VMWare player or VirtualBox.
The tasks for this section are as follows:
• The main router should be configured as the DHCP server as advised earlier and you must ensure that the IP addresses for the main router, DNS server, Linux Server, FTP server, Back-up server, print server are all excluded from the address pool.
• All workstation should be enabled to dynamically request for IP from the DHCP server when they are switched on.
• The main router must have access control list enabled to block the following:
o UDP & TCP ports:
▪ MS RPC (135),
▪ Syslog (514)
o TCP ports
▪ IRC (6660-6669)
o UDP ports
▪ TFTP (69)
▪ NETBIOS/IP 137 – 139
• Configure Telnet and SSH on the main router and test these functionalities.
• Ensure all workstations can ping each other and other core network devices i.e. main
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router.
• All workstation must be able to connect to the internet.
• Create 15 network users and assign network administrative duties to two of the users. Note: this must be done on the Linux Server.
• Ensure that all users have an initial password which they will change when they first login in.
• Create two groups (primary and secondary group). The two network administrations should be in the primary group while the rest of the users should be placed in the secondary group
• Aside from the two network administrators, make two other accounts into privileged accounts i.e. gives members the ability to run commands as root.
What is required from you (FOR ALL TASKS):

Task 1: Research
You must provide a well-written technical report between 1500 and 2000 words Your report must include the research findings of the following issues involved in the design, administration, and management of a networked computing environment:
o Network Design and System Management
o The Scalability and Extensible Network
o Security in Computer Networks
o Network Redundancy failures
Please do not exceed this limit by more than 10%.

Task 2: Network Designs
• You will need to prepare 2 network diagrams illustrating your solutions. One for the main diagram for the business site, and the other is the alternative network design.
• You can use the floorplan as a template although you must demonstrate connectivity between different rooms in your design.
• Ideally you should use Microsoft’s Visio or any other drawing software.
• You have to search, select, and briefly evaluate the real network hardware chosen for your network designs backed up by appropriate references.
• You should use legends as part of your designs with full description of your cabling and network devices.
• There are several ways that you can prepare a network diagram and advice will be provided. The goal is to be able to communicate your design efficiently in a professional manner.
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• You need to use appropriate referencing (IEEE or Harvard) for the devices you propose. There are various websites that sell this type of equipment and there are also the main manufacturers that list their products and specifications.
• There are many companies that manufacture network products. You can choose any other manufacturer like Cisco, Huawei, Juniper, Ciena, etc

Task 3: Network Implementation and Testing
• You must implement your main network design on a network simulator (i.e. Cisco Packet tracer) or a network emulator (i.e. GNS3).
• You must produce a detailed test and evaluation plan of the implemented network.
• You are also required to produce a short video demo showing some test results of the implemented network functionalities and network services.

Task 4: Network Administration
• You must provide the detailed configuration for the DHCP server
• You must provide the detailed configuration of the access control list enabled on the main router
• The detailed configuration of the Telnet and SSH on the main router
• Screenshot evidence of the Linux server administrative tasks i.e.
o The 15 network users including the two network administrators
o The usernames of the users and passwords
o The two groups (primary and secondary group) showing the list of users
o The privileged accounts showing members that have the ability to run commands as root
• You must provide a video demo showing all the network administrative tasks been executed. Note: You can use application that will record your screen will you are carrying out task 4.

You can use the following format for the Task 1 – 4 of the coursework (optional):
Task 1: Research
o Introduction
o literature review
o main body including diagrams if required.
o Conclusion
Task 2: Network Designs
Section 1. The 2 diagrams
Section 2. Design Description. Justification of how your design fulfil the specifications. For example, redundancy, scalability, security features, cabling etc.
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Section 3. Network hardware including brief evaluation and/or reflection on your selection of the network hardware backed up by appropriate references (IEEE or Harvard).
Task 3: Implemented Networks on Simulator or Emulator
Section 1. Screen grabs of the implemented networks
Section 2. Detailed test plan and screen grabs outcomes of the result of testing and evaluations carried out.
Section 3. Conclusion
Note: The short demo video showing some test results of the implemented network functionalities and network services should be saved in mp4 format.
Task 4: Network Administration
• Section 1: The detailed configuration for the DHCP server (You can show the codes in a logical manner
• Section 2: The detailed configuration of the access control list enabled on the main router
• Section 3: The detailed configuration of the Telnet and SSH on the main router
• Section 4: Screen grabs of the Linux server administrative tasks
Note: The short video demo showing all the network administrative tasks been executed in task 4 should be saved in mp4 format.
Further clarifications:
This coursework requires a lot of critical thinking. View this task not just as an assessment activity but a chance to critically evaluate and reflect on networking technologies and enhance your knowledge interacting with your tutor. The submitted evidence for this task should your own work – plagiarism will be penalised. Please refer to the table below for the marking criteria.
School of Computer of Science
ASSIGNMENT BRIEFING SHEET (2020/21 Academic Year) – ANONYMOUS MARKING
Numeric Grade
Descriptor
Postgraduate Grading Criteria
Communication: Presentation of your research findings in Task 1, etc.
Presentation, structure, references, depth and Integration of Literature, Theory and Content / Knowledge).
Application of Technology: Correct use of Network simulator or Emulator, Correct use of VMWare or VirtualBox, Justification of how your Network design/technologies/protocols/ network hardware fulfil the specifications.
For example, scalability, benefits of the chosen network model in your design etc.
Development: Your solution – Network diagrams, network implementations, Network administration
For example: correctly installing and configuring the DHCP server, correctly configuring ACL, FTP server, etc
Analysis, Critical Evaluation and/or
Reflection
Example: Detailed test plan and evaluation of implemented network, network services and tool backed up by appropriate references
90-100
Outstanding
Outstanding presentation and clarity. No significant grammatical / spelling or structural errors. Ideas presented with exceptional clarity.
Outstanding standard Referencing in text. Accuracy of references in text to those in list. Accuracy of reference list. Use of recommended referencing system.
Outstanding breadth and depth of literature. Outstanding integration of literature and/or theory into work.
Outstanding exploration and demonstration of topic showing in depth knowledge and understanding.
Outstanding use of appropriate technology as applied to the problem domain. Occasionally stepping beyond expectations using sophisticated solutions. Outstanding skills and understanding demonstrated
Solutions are novel & fully reframed task within context. Profound depth of engagement and incisive ideas development. Planning is meticulous; decision making is perceptive.
Outstanding level of analysis, critical evaluation and/or reflection.
Highly developed / focused work. Original and well- informed personal response
80-89
Excellent
Excellent structure.
Fluent writing style with very few errors. Very minor grammatical / spelling or structural errors. Ideas presented with excellent clarity.
Excellent standard Referencing in text. Accuracy of references in text to those in list. Accuracy of reference list. Use of recommended referencing system.
Excellent breadth & depth. Excellent integration of literature and/or theory into work.
Excellent level of knowledge and understanding
demonstrated. Covers all relevant points and issues.
Excellent use of appropriate technology as applied to the problem domain. Excellent level of skill and understanding demonstrated
Solutions are innovative and partially reframe the task within its context. Considerable depth of engagement and successful ideas development clearly documented. Detailed planning and clear rationale for decisions
Excellent level of analysis, critical evaluation and/or reflection of issues. Well-developed personal response
70-79
Very good
Very good clear structure. Articulate, fluent writing style and structure. Very few grammatical errors, spelling mistakes or structural issues. Ideas presented with clarity
Very good standard Referencing in text. Accuracy of references in text to those in list. Accuracy of reference list. Use of recommended referencing system.
Very good breadth & depth appropriate to topic. Literature and/or theory integrated very well. Very good level of knowledge and understanding demonstrated.
Very good use of appropriate technology as applied to the problem domain. High level of skill and understanding demonstrated
Solutions relate directly to task and may step beyond conventions
Strong engagement with subject material and processes, evaluation of alternatives, solutions come from process.
Very good level of, analysis, critical evaluation and/or reflection but not consistently taken to full extent. Partial personal response tends towards descriptive
20%%
20%%
40%%
20%%
School of Computer of Science
ASSIGNMENT BRIEFING SHEET (2019/20 Academic Year) – ANONYMOUS MARKING
60-69
Good
Good structure. Writing is mainly clear but some spelling and / or grammatical errors with some structural issues. Good ideas presented with some issues in clarity
Good standard of referencing in text. Accuracy of references in text to those in list. Accuracy of reference list. Good use of recommended referencing system.
Good use of literature. Depth appropriate to topic with moderate breadth or vice versa. Literature and/or theory integrated into work.
Good grasp of the topic and some of its implications. Knowledge and understanding is demonstrated.
Minor errors / omissions.
Good use of appropriate technology as applied to the problem domain. Good level of skill and understanding demonstrated.
Solutions are appropriate to task, work well within conventions. Good use of subject material and planning processes, range of alternatives put forward and evaluated Good experimentation to support implementation within conventions
Good level of analysis and/or reflection further critical evaluation could be expanded. Primarily descriptive personal response.
50-59
Clear pass
Satisfactory structure.
Writing is clear but some spelling and / or grammatical errors with some structural issues. Ideas presented with some issues in clarity Satisfactory standard of referencing in text. Accuracy of references in text to those in list. Some accuracy of reference list. Use of recommended referencing system.
Satisfactory use of literature. Depth appropriate to topic BUT limited breadth or vice versa. Literature and/or theory integrated into work.
Satisfactory grasp of the topic and some of its implications. Some knowledge and understanding are demonstrated. Some errors /
omissions.
Satisfactory use of appropriate technology as applied to the problem domain. Satisfactory level of skill and understanding demonstrated.
Solutions are appropriate to task, work well within conventions. Satisfactory use of subject material and planning processes, range of alternatives put forward and evaluated Satisfactory experimentation to support implementation within conventions
Satisfactory level of analysis and/or reflection but critical evaluation could be expanded on further. Primarily descriptive personal response, sometimes restricted to immediate concerns
40-49
Marginal fail
Poor structure. Has many spellings and /or grammatical errors. Poor presentation of ideas.
Limited referencing in text.
Accuracy of references in text to those in list. Accuracy of reference list. Use of recommended referencing system Limited in breadth and depth. Literature and/or used/quoted without comment.
Limited content / knowledge. Limited or muddled understanding of the topic/question.
Limited use of appropriate technology as applied to the problem domain.
Limited skill and understanding demonstrated.
Solutions reframe task inappropriately and do not address conventions.
Basic use of strategies, few alternatives, limited evaluation. with limited experimentation
Limited evidence of analysis, critical evaluation and/or reflection. Too descriptive in parts. Limited personal response.
11-39
Clear fail
Lacking Structure –argument difficult to follow.
Poorly written and/or poor spelling and grammar. Few clear ideas presented. Lacking referencing within text. Accuracy of references in text to those in list. Accuracy of reference list. Use of recommended referencing system
Lacking in breadth and depth. Some literature and/or theory irrelevant to topic area.
Lacking knowledge Content irrelevant / inaccurate.
Does not address the question and therefore does not meet the
learning outcomes.
Very little use of appropriate technology as applied to the problem domain. Very little skill and understanding demonstrated.
Lacking in appropriate solutions with very limited use of strategies, no evaluation and little evidence of ideas development.
Lacking in its level of analysis / critical evaluation and/or reflection.
Mainly descriptive, lacking in personal response.
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Page 11 of 11
0-10
Nothing of merit
No discernible structure. Very difficult to follow
Many grammatical errors. Many spellings mistake. No presentation of ideas. Unsatisfactory referencing within text. Reference list does not match references in text.
References list has incorrect citations and/or is not the recommended format. No reference list included. No / unsatisfactory evidence of literature and/or theory being referred to. Much of the literature and/or theory used irrelevant to topic area No / unsatisfactory level of knowledge
demonstrated. Content not appropriate to the topic.
No use of appropriate technology as applied to the problem domain. No skill and understanding demonstrated.
No or completely inappropriate solution. No use of strategies, no planning and no experimentation.
Unsatisfactory level of analysis / critical evaluation and or reflection.
Wholly descriptive. No personal response.
Regulations governing assessment offences including Plagiarism and Collusion are available from: http://sitem.herts.ac.uk/secreg/upr/pdf/AS14-Apx3 Assessment%20Offences-v06.0.pdf

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