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计算机网络定制 | CP1402/CP1802 Assignment – Networking Case Study

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CP1402/CP1802 Assignment – Networking Case Study
Introduction
This case study has been divided into four components.
You are to design a network, research and source appropriate devices justifying choices (feasibility, efficiency, etc.), subnet the network, assign IP addresses to the appropriate devices, and write a report introduction for the project.

Note: This is not a group project. Each student must individually complete all parts of their submission.
Students must start with a new document and they must not have another person’s file in their possession at any time. Students may discuss the task with each other, but each student must write their assignment independently and not show their work to other students.
Deliverables
1. A single Word document (.docx) – containing all parts
Assignment breakdown
Scenario
Ausdata Services Inc., an Australian data analytics company, has asked you to assess and redesign their network. They are opening a new branch in Mackay, which will require new equipment. They have existing contracts and hardware to maintain fibre-optic leased line WAN links between sites.
PART 1 – Introduction
PART 2 – Network diagram
PART 3 – Subnet the network and assign IP addresses to the appropriate devices
PART 4 – Research and source appropriate devices justifying choices (feasibility, efficiency, etc.) with a Weighted Scoring Model (WSM)

PART 1 – Introduction
The first part of your report should be introduction to the project. Although this is the first part you should include in your report, it should be the last part that you write. In your introduction you are to provide an outline for each of parts 2, 3, and 4.
What to include:
• Describe the overall task of assessing and redesigning the network.
• Explain why it is important to produce a well-designed network diagram.
• Explain why it is necessary to create and document the separate subnets for the network.
• Explain why new equipment is needed for the new branches, the basic role of the switches and routers, and the process you used to select the equipment.
The introduction should be well-articulated: clear, concise, and use correct spelling and grammar. The intended audience for the introduction can be assumed to have basic technical knowledge but are not networking experts. The introduction should be no longer than a page.
PART 2 – Network specifications and diagram
Network Specifications
You have been given a rough sketch of the network topology below. You are to draw the network using Visio, subnet the network (see part 3), and assign port numbers and IP addresses to ports.
Network Structure
Hardware
• Only include one switch in you diagram for each LAN or WLAN (even if more are required)
• Servers should be on their own LAN
• The Internet router port address is 31.255.14.98/30
• The Gosford router is connected to the Internet and provides access to the public backbone containing a web server and a compute server.

PART 3 – Subnet the network using VLSM, and assign IP addresses to the appropriate devices.
Each location has the following number of hosts
Gosford, Canberra, Cairns, and Mackay each include a wireless LAN for clients to use.
Location Workstations WLAN addresses
Gosford 600 120
Canberra 300 30
Cairns 150 14
Mackay 80 14
Darwin 60
Adelaide 40

Subnetting
Use VLSM to subnet the network topology using a public class B network. You are to use the table format below to provide the subnet details.
Table 1. Subnets (including WAN subnets)
Spreadsheet Columns: Subnet name, subnet address, subnet mask (in slash format), first useable address, last useable address, broadcast address, static address range and DHCP address range (all addresses to be in dotted decimal notation)
Table 2. Router Interfaces
Spreadsheet Columns: Location, interface, IP address, subnet mask (in slash format)
Table 3. Servers
Spreadsheet Columns: Location, server name, IP address, subnet mask (in slash format)
Additional requirements:
• Choose one public B class network address for the entire network and subnet this block of addresses to optimise spare addresses for future expansion.
• Place the WAN subnets in the blocks directly following the LAN address space.
• Add 100% to each subnet to allow for growth in the number of hosts specified for each LAN (i.e. workstations × 2). Do not allow for any growth in the number of servers or size of WLANs
• DHCP will to be used for IP address allocation for hosts in each subnet and these ranges are to be allocated for each LAN.
• Static IP addresses are to be allocated where appropriate.
• The ISP has given us an IP address of 31.255.14.98/30 for our Internet connection at Gosford.

PART 4 – Research and source appropriate devices justifying choices (feasibility, efficiency, etc.)
You are to research and submit a project procurement plan for the Mackay network. The devices you must include are routers, switches, and wireless access points. Make sure the devices you select can handle the number of workstations required and provide a good quality of service to wired and wireless users.
Your project plan and final recommendations should be based on a Weighted Decision Matrix (like the WDM you did in the Procurement Practical). You are to compare five (5) devices from each category and to base the decision on reasonable and well-justified attributes.
The budget for procurement is $7,500. You may exceed this if you can justify it well.
Your project plan is to contain the following components:
Weighted Decision Matrix – hardware resource requirements analysis
• Include a written justification for priorities and attributes given in the matrix
• Create your WDMs in Excel and copy and paste them into your Word doc
Budget
• Create a well-presented table of the prices of all devices and the total cost
• Include hardware only, not labour

Marking Scheme
Ensure that you follow the processes and guidelines taught in class to produce high quality work. This assessment rubric provides you with the characteristics of exemplary, good, satisfactory, and unacceptable work in relation to task criteria
Criteria Exemplary (90-100)% Good (70-80)% Satisfactory (50-60)% Limited (20-40)% Very Limited (0-10)%
Part 1 Introduction
Content

/15
Accurate outline of report contents that demonstrates excellent understanding of networking content.

Suitable for a semi-technical audience.
Accurate outline of report contents that demonstrates good understanding of networking content.

Generally suitable for a semi-technical audience. Generally accurate outline of report contents that demonstrates understanding of networking content.

Provides basic outline of report contents. Incomprehensible, negligible attempt, or not done.
Quality of Writing
/5 1. Well-structured into paragraphs.
2. Correct grammar.
3. Correct spelling. Most of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Over half of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Under half of the criteria are satisfactory (See criteria under “exemplary”) or significant issues in some areas. Many significant errors with structure, grammar, or spelling, or not done.
Part 2 Topology Design
Diagram appearance

/10 1. Created in MS Visio (or draw.io for external students) using Cisco icon set, and the diagram is:
2. Neat and professional
3. All lines at set angles (multiples of 30, 45, 90 degrees)
4. Lines do not end short
5. Lines do not appear over the top of devices
6. Lines align if on same level Most of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Over half of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Under half of the criteria are satisfactory (See criteria under “exemplary”) or significant issues in some areas. Many problems (e.g. not done in Visio, inconsistent formatting, diagram does not align to subnetting scheme, etc).
Diagram Labels and Devices

/10 Topology is accurate and the diagram
1. Includes device names
2. Interface names
3. Interface IP addresses
4. Masks in slash format
5. Text neatly placed and sized Most of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Over half of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Under half of the criteria are satisfactory (See criteria under “exemplary”) or significant issues in some areas. Many problems (e.g. topology is inaccurate; devices are not named, etc).
Part 3 Subnetting
Scheme
/10 1. LANs and WLANs are the correct size.
2. All required LANs and WLANs are documented.
3. WANs are the correct size.
4. All required WANs are documented. Most of the criteria are satisfactory (See criteria under “exemplary”) but one or two minor issues, such as a missing LAN, or incorrect address block choice. Most of the criteria are satisfactory (See criteria under “exemplary”) but several minor issues (e.g multiple missing LANs or WANs) or a significant issue such as incorrect size. Some LANs and WANs are documented.

Sizes are correct, or at least not outlandishly incorrect. Few LANs and WANs are correctly identified.

Nonsensical subnet size chosen.
Subnet Tables
/10 Based on the chosen subnetting scheme, the following specifications are available and correct for LANs and WLANs table, and WANs table:
1. Subnet address
2. Subnet mask
3. Broadcast address
4. First usable address
5. Static address range (LANs and WLANs only)
6. DHCP address range (LANs and WLANs only)
Most of the criteria are satisfactory (See criteria under “exemplary”) but some minor lapses. Most of the criteria are satisfactory (See criteria under “exemplary”) but several minor issues, or a significant issue such as missing a column. Tables are presented and contain most of the correct columns, and some correct entries. Tables contain major issues such as impossible subnet bounds, or negligible attempt, or not done.
Router Table
/10 Based on the chosen subnetting scheme, the following specifications are available and correct in the router interface table:
1. Location
2. Interface
3. IP address
4. Subnet mask
Most of the criteria are satisfactory (See criteria under “exemplary”) but a few minor issues or missing interfaces. Over half of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Table is presented, but contains several significant errors such as mismatched IP addresses or missing columns. Table is generally incomplete or incorrect.
Server Table
/5 Based on the chosen subnetting scheme, the following specifications are available and correct in the server table:
1. Location
2. Name
3. IP address
4. Subnet mask Most of the criteria are satisfactory (See criteria under “exemplary”) but a few minor issues. Over half of the criteria are satisfactory (See criteria under “exemplary”) but some minor issues. Table is presented, but contains several significant errors such as mismatched IP addresses or missing columns. Table is generally incomplete or incorrect.
Part 4 – Procurement
Weighted Decision Matrices
/30 1. All required WDMs available.
2. WDMs have been formatted as per the practical example
3. Clear, concise, and reasonable justifications for priorities and attributes given in the matrix.
4. Appropriate hardware choices. As per “exemplary”, but some minor lapses. As per “exemplary”, but several minor lapses, or some significant issues, such missing WDMs, formatting issues, some poor justifications, or some inappropriate hardware choices. Some WDMs are available, but justifications are generally poor, and hardware choices generally inappropriate. Major issues with WDMs, justifications, and hardware choices.
Budget

/10 Professional, detailed, accurate, and visually appealing. As per “exemplary”, but some minor lapses. Generally accurate and visually appealing. Several inaccuracies. Generally inaccurate.
Overall Document
Document and Submission

/5
Submission is a single Word document divided into sections as outlined.
Single Word document, but not correctly divided into sections. Incorrect submission.
Formatting

/15 Consistent and readable use of fonts.

All tables are consistently neat and easy to read. Consistent and readable use of fonts.

Tables are generally neat and readable. Mostly consistent and readable use of fonts.

Tables are somewhat neat and readable. Inconsistent use of fonts, or inappropriate choice.

Some tables are messy or difficult to read. Poor use of fonts.

Several tables are missing or very poorly formatted.


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