COMP1001 – Data Communications and Network

COMP1001 Assignment 3 S1/2021
COMP1001 – Data Communications and Networks
Assignment 3
Network Design for a Modern Multimedia Software Development
Company
Due Date: 17th May 2021 11:00 PM
Weight: 40 % of total unit marks
Objectives:
By completing this assignment, students will be demonstrating their knowledge and skills learnt from week
1-12 that includes:
 Logical network design for a typical SME
 IP address planning
Background:
A private new software company, called SCUSoft.com, is opening its business in Brisbane and Gold coast,
Australia to sell healthcare products. Their main product is system (software) that provides a variety of
multimedia products and services. The managing director has asked for a “software development company of
the future, using the latest technologies with a network which can accommodate the load now and for another
five years and leaves room for further expansion”.
The company’s headquarter (HQ) will be located in three adjacent two-story buildings (Buildings A and B
and C) in Brisbane. The distance between the buildings is 20m. The organization has the major six
departments, as given in Table 1:
Department Hosts
Executive Management (3+Y) workstations, (1+X) printers
Software Development (150+XY) workstations, (5+Z) printers
Production (20+YZ) workstations, (1+Y) printers
Marketing (10+X) workstations, (3+Z) printers
Accounting and Finance (5+Y) workstations, (3+X) printers
Administration (5+X) workstations, (2+Y) printers
Table 1: Hosts Information Table
Where XYZ are the last three digits of your student ID. If any of these three digits is Zero
(0), you replace them with the next non-zero number in your ID to estimate each
department’s host size.
Executive management, Admin and Accounting and Finance will be in Building A, Software Development
will be in Building B with the other two departments are in Building C. All the workstations, printers, and
other devices will primarily be connected through the wired network. However, there will be support for Bring
COMP1001 Assignment 3 S1/2021
Your Own Device (BYOD). The server farm (3 or more servers) can be located in Building A. There must be
physical connections among the three buildings. The edge router (the router that will be connected to the
Internet and provide internet access to the organization) will be located in Building A.
Future
Future aspiration is to change the culture of the workplace. The employees and management particularly want
to enable working from home for the software development team. In this regard, it is expected that all software
developers will be issued with Laptops/MacBook Pro, which they can take home. The company will also need
to increase their resources to support the new online services. The production process will also be updated.
The production team will need 40 new computers to control the 3D printers. The administration department
will be adding 7 more workstations and 2 printers to handle the extra workload. The company also wants to
be more open and allow BYOD, but it does not want to compromise security.
The company also needs to connect with a WAN at a branch office (Gold Coast), located approximately 200
km from the HQ of the company. The Gold Coast branch has only two departments: software development
(25 hosts) and marketing (6 hosts). They need to be linked to the software development company’s HQ
network.
Important objectives of the Network:
The main objectives for the proposed solution are:
• A modern network for the company
• More accessibility without compromising on security
• Support for online services
• To ensure that this company has video conferencing between the main office and its branch.
The network is proposed to achieve the above objectives considering the company’s following business and
technical goals.
Business goals:
• Improved communications, wireless, videoconferencing, etc.
• Protect company information,
• The company of the future will have at least a 30% increase in staff in two years,
• Be excellent in technology in a cost effective manner.
Technical goals:
• The network will be a modern network (campus design) to meet developers and employee’s needs,
• Scalability – remember they want to expand for the next five years,
• Availability – Wireless network access is available in all employees as well as some outdoor areas
for software developers and employees,
• Employees should have access to company resources from both company and home (different
servers),
• Performance – network performance must be high,
• Reliability – no single point of failure,
• Security – protection of company information and other IT assets,
You are required to design a recommended campus network for the Company’s HQ (main branch)
based on the current and future user network requirements and the WAN link to the Branch office.
COMP1001 Assignment 3 S1/2021
What you need to do
You are required to design the network you would recommend. Remember, the goal of building a new
network is that it will support the company’s needs for the next five years. Your recommendations are to be
submitted as a formal report containing your analysis of the present situation and the future needs and your
recommended network solution. You are free to make any further assumptions you wish.
In your report, you are required to:
i. Analyse user network requirements.
ii. Suggest a type of network architecture that is suitable for the organisation. You will need to
identify all the media (circuits), network hardware necessary to build the network(s) you are
proposing and to justify your choice, i.e., you will need to explain the function of the hardware
and network choice in your solution and to justify your choice by value for Money, Quality of
Service (QoS), security, etc.
iii. Each department should have a separate wired LAN or virtual LAN (VLAN). This is for
security reasons. The departments should still be able to communicate with each other.
iv. All department LANs need to support voice, video, and data communication. They all also need
access to printer(s).
v. There also needs to be wireless access throughout the floor for all the workers to connect their
own devices. The wireless LAN should be secured, so no person from outside the organization
uses it.
vi. Explain IP address plan for the proposed network.
vii. Explain logical network design with diagram(s) for the proposed network.
viii. Draw physical network(s) diagram that shows how you connect the hardware you have chosen
in (ii) and where they are located.
ix. Designing/selecting a WAN connection to provide fast, reliable but inexpensive and secure
Internet access.
x. There should include an application for video chat for the workers as well as email.
xi. The network design needs to leave room for 40% expansion both in terms of bandwidth (data
rate) and the number of users.
The company is assigned the following IP address range to use for their networks:
IP: 15Z.1ZY.YX.0
XYZ is the last three digits of your student ID.
You are expected to provide an optimum address allocation solution with the following details:
 IP address required for each sub-network.
 IP address allocation plan for each network/sub-network, including network address, subnet mask,
broadcast address, default gateway address, and valid host address range.
 IP address allocation plan for key network devices and interfaces, e.g., servers, printers, router
interfaces, etc.
As part of your report, you are required to write an executive summary explaining why your design meets
the business and technical goals. Presentation and referencing are important.
COMP1001 Assignment 3 S1/2021
Remember that it is a company, and access to the Internet will need to be controlled and some sites blocked.
Your report must include explanations justifying the design decisions you have made. To help with these
assumptions, the following information is available:
IT Platform: Windows Server 2019
Switches/routers (Cisco/Huawei)
Encryption and security services are provided by another company, and you do not need to worry about
them.
As the HQ needs to be connected to the branch office, you will need to show how the HQ is connected to the
branch office. Your textbook has this information shown as Best Practice Design for LAN (campus) and
WAN services.
There are two ways of presenting a network, the logical view, and the physical view. Please read the CCNA
chapter 3 in More Resource folder, which describes these two viewpoints. You will need to make both a
logical and a physical diagram of the HQ networks. These are your network diagrams mentioned in the
rubric below.
WAN Internet Connection
Everyone at the office requires Internet access. The choice of the Internet connection must keep in mind the
requirements of each of the LANs and any other uses of the Internet. You can assume that Network Address
Translation (NAT) comes pre-configured in the router that comes with the Internet connection you select.
You can also assume that Public IPv4 addresses come with an Internet connection.
Assessment criteria
Marking Criteria Max Marks (out of 40)
Executive Summary 1
Executive summary with 0.5
Technical solution 0.5
Part A. Analysis of User Requirements 5
Analysis of communities of user requirements
(expected functionality, etc.)
5
Network Design for Recommended Network(s) 20
Data Transmission Media 3
Hardware (Network and users) 6
Logical network(s) design 7
Network physical topology including network
diagram(s)
4
IPv4 Addressing plan 10
COMP1001 Assignment 3 S1/2021
IP subnet and subnet mask 3
Network address 3
Default Gateway address 1
Broadcast address 1
Key IP addresses 2
Presentation Style and Writing 3
Report format and Presentation 1
Clarity of exposition & Readability 2
Referencing – Harvard Style to be used. 1
In-text Referencing (Harvard) 0.5
List of References (Harvard) 0.5
COMP1001 Assignment 3 S1/2021
Assignment-2 Marking Rubric
The following marking rubric will be used for the marking of your submission. Make sure you read CAREFULLY this to understand how your
work would be graded against each of the defined criteria above.
Criteria
Level of Student Performance
HD D C P F A
Executive
summary
Executive
Summary
and
Business
purposes of
a network
and your
solution
An executive summary with a
clear statement highlighting
both the network’s business
purposes and your technical
solution.
Executive summary
highlighting at least 80% of the
business purposes of the
network and your technical
solution.
Executive summary
highlighting at least 60% of
business purposes of the
network and your technical
solution with a few minor
omissions.
An adequate statement highlighting
the network’s business purposes
and your technical solution with
one key omission or several minor
omissions.
Inadequate documentation of
business purposes of the network
and your technical solution.
Analysis of
User
Requiremen
ts
Analysis of
user
requirement
s
(functionalit
y etc.)
Demonstrates a full
understanding of network
needs through a
comprehensive analysis of all
of the following elements:
 Various communities of
users and their priority
levels
 Bandwidth requirements
 Remote access requirement
 Mobility requirements.
Shows sound understanding of
network needs through a
comprehensive analysis of at
least 4 of the following
elements (or similar):
 Various communities of
users and their priority levels
 Bandwidth requirements
 Remote access requirement
 Mobility requirements.
Adequate analysis of network
needs that considers at least 3
of the following elements (or
similar):
 Various communities of
users and their priority
levels
 Bandwidth requirements
 Remote access
requirement
 Mobility Requirements
Adequate analysis of network needs
considering at least 2 of the
following or similar :
 Various communities of users
and their priority levels
 Bandwidth requirements
 Remote access requirement
 Mobility Requirements
Inadequate analysis of network
needs with most of the following
omitted:
 Various communities of users
and their priority levels
 Bandwidth requirements
 Remote access requirement
 Mobility Requirements
Media(Circ
uits)
 Comprehensive details on
proposed cable design
including types, network
standard support, length, and
their capacity
 Sound justification of
choices based on:
 Business goals
 Cost analysis
 Comprehensive details on at
least 80% of the proposed cable
design, including types, length,
network standard support, and
their capacity
 Clear justification of choices
based on :
 Business goals
 Cost analysis
 Partial description of
proposed cable design with a
few minor omissions of
types, length, network
standard support, and their
capacity.
 Adequate justification of
choices based on :
 Business goals
 Cost analysis
 Adequate details on the
proposed cable design
 Inadequate justification of
choices
 Inadequate details on the
proposed cable design
 No justification documented.
COMP1001 Assignment 3 S1/2021
Network
Design for
Proposed
Network(s)
Hardware
(network)
 Identifies and lists all of the
proposed hardware (including
interworking devices; their
location, client PCs, servers,
printer, etc.)
 Brief description of their
major characteristics.
 Sound justification of
choices based on:
 Business goals and
 Cost analysis
 Identifies and lists at least 80%
of the proposed hardware,
including internetworking
devices, their location, client
PCs, servers, printer, etc.
 Brief description of their major
characteristics.
 Clear justification of choices
based on:
 Business goals and
 Cost analysis
 Partial description of the
proposed hardware with a
few minor omissions of
internetworking devices; their
location, client PCs, servers,
printer, etc.
 Brief description of their
major characteristics.
 Adequate justification of
choices based on:
 Business goals and
 Cost analysis
 Identifies and lists at least 40% of
the proposed hardware, including
internetworking devices, their
location, client PCs, servers,
printer, etc.
 No description of their major
characteristics.
 Adequate justification of choices
based on :
 Business goals OR
 Cost analysis
 Inadequate details on the
proposed hardware with a
number of major omissions.
 No description of their major
characteristics.
 No justification of choices based
on either Business goals or costbenefit
analysis.
Logical
network(s)
design
 A comprehensive description
of the proposed network
logical design, including
diagram(s).
 Clear justification of your
choices considering the
following:
 Performance and
 Extensibility/Scalability/
Security
 A comprehensive description
of the proposed network logical
design, including diagram(s)
with few minor omissions.
 Clear justification of your
choices considering the
following:
 Performance and
 Extensibility/Scalability/Secu
rity
 Partial description of the
proposed network logical
design, including diagram(s)
and a few minor omissions.
 More than an adequate
justification of your choices
considering the following:
 Performance and
 Extensibility/Scalability/
Security
 Adequate description of the
proposed network logical design
including diagram(s)
 Limited but adequate justification
of your choices considering the
following:
 Performance or
 Extensibility/Scalability/S
ecurity
 Inadequate description of the
proposed network logical design
without diagrams and a number of
key elements omitted.
 No justification of your choices
considering either Performance or
Extensibility/Scalability/Security
Network
physical
topology
including
network
diagram(s)
 Comprehensive diagram(s)
showing the location of major
end-users and network
devices such as servers,
interconnecting devices,
firewall, wireless access
points, etc.
 Appropriate icons and
legends are expected.
 Comprehensive diagram(s)
showing the location of at least
80% of major end-users and
network devices.
 Appropriate icons and legends
are expected.
 Partial diagram(s) showing
the location of at least 60% of
major end-users and network
devices.
 Appropriate icons and
legends are expected.
 Partial diagram(s) shows about
50% of major end-users and
network devices without indication
of buildings and floor mapping.
 Appropriate icons and legends are
expected.
Diagram present but illustrates
very little of the proposed
network or very little
understanding of the proposed
system.
IPv4
Addressi
ng plan
 Work out correctly the
number of IP addresses
required for each department.
Reasonable IP address
reservation for future
network growth is planned.
 Correct IPv4 addressing plan
with detailed information
about network address,
broadcast address, and
default gateway address for
each subnet. Additional
 Work out correctly the number
of IP addresses required for
each department. Reasonable
IP address reservation for
future network growth is
planned.
 Correct IPv4 addressing plan
with detailed information about
network address, broadcast
address, and default gateway
address for each subnet.
Additional details about IP
 Work out correctly the
number of IP addresses
required for each department.
Reasonable IP address
reservation for future
network growth is planned.
 Correct IPv4 addressing plan
with detailed information
about network address,
broadcast address, and
default gateway address for
each subnet. Additional
 Work out correctly the number of
IP addresses required for each
department. No IP address
reservation for future network
growth is planned.
 Correct IPv4 addressing plan but
lack detailed information about
network address, broadcast address,
and default gateway address for
each subnet, or there are some
 Do not work out the correct
number of IP addresses
required for each department.
There are mistakes in the
calculation
 Incorrect IPv4 addressing plan.
There are major mistakes in the
address calculation.
COMP1001 Assignment 3 S1/2021
details about IP address
assignments, e.g., server,
router interface IP addresses,
are also provided. Subnet
mask and Subnet address
calculation process is
presented for all subnets. The
subnetting plan is optimal
and efficient.
address assignments, e.g.,
server, router interface IP
addresses also provided.
Subnet mask and Subnet
address calculation process is
presented for at least 80% of
subnets. The subnetting plan is
optimal and efficient.
details about IP address
assignments, e.g., server,
router interface IP addresses
also provided. Subnet mask
and Subnet address
calculation process is
presented for at least 60% of
subnets.
minor mistakes in the addressing
plan.
Presentat
ion Style
and
Writing
Report
format and
presentation
Report format is consistent
throughout, including heading
styles, fonts, margins, white
space, etc.
Report format is at least 80%
consistent throughout, including
heading styles, fonts, margins,
white space, etc.
Report format is generally
consistent throughout,
including heading styles,
fonts, margins, white space,
etc.
Many departures from the required
professional report format.
Work generally does not follow
the required professional report
format.
Clarity of
exposition
&
readability
Information is presented in a
logical, interesting way,
which is easy to follow.
Information is mostly presented
in a logical manner, which is
easily followed.
Information is generally, if
not always, presented in a
logical manner, which is
easily followed.
Work is difficult to follow as there
is a lack of apparent structure or
continuity, or sequencing of ideas.
Issues such as sentence structure,
word choice, lack of transitions,
and/or sequencing of ideas make
reading and understanding
difficult.
Referenci
ng
List of
references
(preferably
Harvard
style)
Reference section complete,
comprehensive and follows
the required format.
Reference section at least 80%
complete, comprehensive, and
follows required format with a
minor inadequacy in number.
Reference section at least
60% complete,
comprehensive, and follows
required format with minor
deviations from requirements.
Major inadequacies in references
with minor departure from the
recommended or any other
referencing style.
Very few references listed and/or
major departures from
requirements.
In-text
referencing
(preferably
Harvard
style)
Appropriate in-text citation,
consistent with the
recommended style
Appropriate in-text citation, at
least 80% consistent with the
recommended style
Adequate in-text citation, at
least 60% consistent with the
recommended style
Adequate in-text citation, or
adequate citation, but which is not
consistent with the recommended
style
Inadequate in-text citation, a
major departure from the
recommended style, or primarily
presented in an alternative
referencing style
COMP1001 Assignment 3 S1/2021
Format, presentation, and length
There is no report template to be used in this assignment, so you can design your own template or refer to
online resources. However, the report should be well presented in a standard report format.
Due to the system setting constraint, the report length was set with 2000-3000 words in the unit UIG. You are
advised that there is no formal word limit for the report. However, a good report is expected to be somewhere
in the vicinity of 2,000 – 3,000 words from Introduction to Conclusion. Note that this is a very rough estimate,
and there will be no penalties imposed based on the number of words (no real ceiling if the content is precise
and relevant!)
Submission format
There are two links provided for assessment 2 submission: 1) Turnitin link, 2) Assignment Submission link.
You have to submit the same report to both links. If they are not the same or you do not submit in
both links, you automatically receive a Fail. The Turnitin submission will be used to check for
academic misconduct, while the Assignment Submission link will be used for marking purposes.
Please make sure you review the report generated by the Turnitin system and make changes (if
necessary!) to minimise the issues of improper citation or potential plagiarism.
When you have completed the assignment, you are required to submit your assignment in the
DOC format. You can follow the following convention in naming your file:
filename = FirstInitialYourLastName_COMP1001_A3_S1_2021.doc
(i.e. Gsorwar_COMP1001_A3_S1_2021.doc)
Original work
It is a University requirement that a student’s work complies with the Academic Integrity
Policy. It is a student’s responsibility to be familiar with the Policy.
Failure to comply with the Policy can have severe consequences in the form of University
sanctions. For information on this policy, please refer to the Student Academic Integrity Policy
at the following website:
http://policies.scu.edu.au/view.current.php?id=00141
As part of a University initiative to support the development of academic integrity,
assessments may be checked for plagiarism, including through an electronic system, either
internally or by a plagiarism checking service (e.g., Turnitin), and be held for future checking
and matching purposes.
Retain duplicate copy
Before submitting the assignment, you are advised to retain electronic copies of the original
work. In the event of any uncertainty regarding the submission of assessment items, you may
be requested to reproduce a final copy.
COMP1001 Assignment 3 S1/2021
School extension policy
In general, you will NOT be granted an extension unless where there are exceptional circumstances. Students
wanting an extension must make a request at least 24 hours before the assessment item is due, and the request
must be received in writing by the unit assessor or designated academic through student service (please visit
https://www.scu.edu.au/current-students/student-administration/special-consideration/for
details). Extensions within 24 hours of submission or following the submission deadline will not be granted
(unless supported by a doctor’s certificate or where there are exceptional circumstances – this will be at the
unit assessor’s discretion and will be considered on a case by case basis). Extensions will be for a maximum
of 48 hours (longer extensions supported by a doctor’s certificate or alike to be considered on a case by case
basis).
A penalty of 5% of the total available grade will accrue for each calendar day (24-hour period) if an
assessment item is submitted late without a prior extension granted. Therefore, an assessment item worth 20
marks will have 1 mark deducted for every 24-hour period, and at the end of 20 days will receive 0 marks.
Students who fail to submit following the guidelines in this Unit Information Guide will be deemed to have
not submitted the assessment item, and the above penalty will be applied until the specified submission
guidelines are followed.
Please make sure that you submit your assessment well ahead of the deadline as issues such as internet
connectivity may cause last-minute hiccups. No extensions will be provided unless applied through special
consideration with proof of genuine reason for delay attached.
Marks and feedback
All assessment materials submitted during the semester will normally be marked and returned
within two weeks of the required date of submission (provided that the assessment materials
have been submitted by the due date).
Marks will be made available to each student via the MySCU Grade book.


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