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ASSIGNMENT 2 FRONT SHEET
Qualification BTEC Level 5 HND Diploma in Computing
Unit number and title Unit 2: Networking Infrastructure
Submission date September, 19 2021 Date Received 1st submission
Re-submission Date Date Received 2nd submission
Student Name Pham Nguyen Nhat Anh Student ID GCC
Class GCC0708F1 Assessor name Le Huynh Quoc Bao
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
P 5 P 6 P 7 P 8 M 3 M 4 D 2 D 3
Summative Feedback: Resubmission Feedback:
Grade: Assessor Signature: Date:
Lecturer Signature:
2.2 (^) 2.3 (^) 2.
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:
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 of communication devices. Discuss the significance of upgrades and security requirements in your recommendations.
Learning Outcomes and Assessment Criteria (Assignment 1):
Learning Outcome Pass Merit Distinction
LO 3 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 to support the networked system.
LO 4 P7 Implement a networked system based on a prepared design.
P8 Document and analyse test results against expected results.
M4 Recommend potential enhancements for the networked systems.
D3 Use critical reflection to evaluate own work and justify valid conclusions.
P5. Provide a logical/physical design of the networked system
with clear explanation and addressing table.
1. The difference between logical and physical design:
Logical layout of a network can be defined as the mode of communication that connects two computers connected to a network. Logical layout consists of the outflow of data between two systems. In actual sense network connectivity is based on logical design of a network. The physical layout design is installed using logical design. The logical network can also be upgraded and can be used to connect two or more computers together. Logical design of a network consists of virtual design while the physical design of a network describes the hardware functions of the network. Logical designs determine the flow of data or communication between two networks while physical design is a communication between two computers connected with cables. For example, a physical design of a network can be upgraded to link two or three office buildings. The expansion would require an upgrade using logical design layout of a network. This would make it easy for information to be processed from any system in buildings at the same time. Physical layout of a network is based on a logical layout. For example, an organization that installs a wide area network would be drawn as a single line diagram; this is a basic design of a physical layout. Thus, the explanation it means that logical design of a network can be developed or expanded using physical design while retaining its original characteristics. (network., 2013)
2. The USER Requirement for the design:
Users have required to implement a networking system from a local educational institute.
The specification of the project is given below:
People: 200 students, 15 teachers, 12 marketing and administration staff, 5 higher managers including the head of academics and the programme manager, 3 network administrators. Resources: 50 student lab computers, 35 staff computers, 3 printers Building: 3 floors, all computers and printers are on the ground floor apart from the IT labs - one lab located on the first floor and another located on the second floor. First, what users want is the need to design a network system in a reasonable and effective way to help employees' work as well as students' learning better. Next, users want devices in this network to be able to communicate with each other. And finally, users want that this system in the future can be more easily developed and expanded. The 1st and 2nd floors, each floor has 4 rooms. Each floor has 1 room for IT labs and 3 study rooms. Each IT lab will be arranged 25 computers connected together by a switch, and in addition in this room will be arranged an Access Point to support the connection. And other theory classrooms are also equipped with an Access Point at the middle of the room to help students connect to the network. And on the ground floor, there are 4 rooms: IT room, Higher Manager room, Marketing and Administration room and Teacher room. In the IT room, there will be 3 computers, 1 server, 1 wireless router, they are connected to a switch and this switch is connected to a Core Switch also located in this room. This Core Switch is a central device of the networking system; all switches in VLANs will be connected to this device. In the Higher Manager room, there are 5 computers, 1 printer, 1 wireless router, and they are connected to the switch. Next is the Marketing and Administration room, which is arranged with 12 computers, 1 printer and 1 wireless router, and they are also connected to the switch. Finally, there is the Teacher room with 15 computers, 1 printer and 1 wireless router, and these devices are also connected to the switch. And overall, this network system is designed using a Star Topology. This network system will have 9 Virtual LANs (VLANs) : 1 VLAN is on the 1st floor and 1 VLAN is on the 2nd floor, the ground floor has 4 VLANs and 1 VLAN for Server, 1 VLAN from Core Switch to Firewall (VLAN inside), and finally it's a VLAN from Firewall to Google Server (VLAN outside).
5. Addressing Table:
Devices Interface IP address Subnet Mask Default gateway GW Server FastEthernet0 192.168.10.10 255.255.255.0 192.168.10. Google Server
FastEthernet0 8.8.8.8 255.0.0.0 8.8.8.
Router Server
FastEthernet0/0 50.1.1.1 255.0.0.0 N/A FastEthernet0/1 8.8.8.1 255.0.0.0 8.8.8. Firewall Ethernet0/0 192.168.100.1 255.255.255.0 N/A Ethernet0/1 50.1.1.2 255.255.255.0 N/A
CoreSwitch
FastEthernet0/2 192.168.10.1 255.255.255.0 N/A FastEthernet0/3 192.168.100.2 255.255.255.0 N/A FastEthernet0/4 192.168.20.1 255.255.255.0 N/A FastEthernet0/5 192.168.30.1 255.255.255.0 N/A FastEthernet0/7 192.168.50.1 255.255.255.0 N/A FastEthernet0/8 192.168.40.1 255.255.255.0 N/A FastEthernet0/10 192.168.70.1 255.255.255.0 N/A FastEthernet0/12 192.168.60.1 255.255.255.0 N/A SW2.01 FastEthernet0/1- 24 In Vlan20: 192.168.20.0/24 255.255.255.0 N/A SW2. SW1.01 FastEthernet0/1- 24 In Vlan30: 192.168.30.0/24 255.255.255.0 N/A SW1. SW IT FastEthernet0/3- 24 In Vlan40: 192.168.40.0/24 255.255.255.0 N/A SW Marketing
FastEthernet0/1- 24 In Vlan50: 192.168.50.0/24 255.255.255.0 N/A
SW Manager FastEthernet0/2- 24 In Vlan60: 192.168.60.0/24 255.255.255.0 N/A SW Teacher FastEthernet0/3- 24 In Vlan70: 192.168.70.0/24 255.255.255.0 N/A
PC2.01 NIC IP address is provided by DHCP from GW Server
PC2.02 NIC
IP address is provided by DHCP from GW Server
PC1.01 NIC
IP address is provided by DHCP from GW Server
PC1.02 NIC
IP address is provided by DHCP from GW Server
PC0 1 .01 NIC
IP address is provided by DHCP from GW Server
PC0 1 .02 NIC
IP address is provided by DHCP from GW Server
PC0 2 .01 NIC
IP address is provided by DHCP from GW Server
PC02.02 NIC
IP address is provided by DHCP from GW Server
PC03.01 NIC
IP address is provided by DHCP from GW Server
PC03.02 NIC
IP address is provided by DHCP from GW Server
PC04.01 NIC
IP address is provided by DHCP from GW Server
PC04.02 NIC
IP address is provided by DHCP from GW Server
Printer Marketing FastEthernet IP address is provided by DHCP from GW Server
Printer Manager FastEthernet IP address is provided by DHCP from GW Server
Printer Teacher FastEthernet IP address is provided by DHCP from GW Server
AP2.
In Vlan30: 192.168.30.0/24 255.255.255.0 N/A
AP2.
AP2.
AP2.
AP1.
In Vlan20: 192.168.20.0/24 255.255.255.0 N/A
AP1.
AP1.
AP1.
AP01 192.168.40.2 255.255.255.0 192.168.40.
AP02 192.168.50.2 255.255.255.0 192.168.50.
AP03 192.168.60.2 255.255.255.0 192.168.60.
AP04 192.168.70.2 255.255.255.0 192.168.70.
Laptop 2.01 Wireless IP address is provided by DHCP from GW Server
P6. Evaluate the design to meet the requirements.
1. Test plan.
No Test plan Purpose 1 Ping two computers on the same LAN Check the signal of the computer on the same network 2 Ping two computers other than LAN Check the signal of the computer when it is different from the LAN network 3 Ping two computers on different LAN layer
Check the signal of the computer between floors 4 Ping between pc to server Check if the signal of the computer is connected to the server or not
2. Evaluate my network design.
Advantages Disadvantages The advantage is that it makes cable usage efficient and easy to manage. In the future, if the user wants to expand the system then it makes it easy to add new nodes without rebooting all of the connected devices.
The devices are connected to a central switch, so when the central switch fails, the entire network will be affected and the cost of rebuilding the system will be quite high. The VLANs on the 1st and 2nd floors can ping to the rooms of the ground floor, since the ground floor is the working floor of the staff and teachers, so it needs better security.
3. Advice and solutions.
That is, the VLANs on the 1st and 2nd floors can ping to the rooms of the ground floor, since the ground floor is the working floor of the staff and teachers, so it needs better security. Therefore, a supervisor may be needed to prevent this from happening. there should be 2 servers (1 main server and 1 backup server) to avoid the main server failure, there is still 1 backup server to keep running. Server device should be supplied with 2 power sources (1 main power source and 1 backup power source) in case the Server is disconnected from the main power source, there will still be backup power to maintain operation. The amount of heat it radiates is quite hot because the server operates regularly, so there is an air conditioning system in the room containing the server and it is necessary to tightly control the temperature and humidity in the room. And for the CoreSwitch device it is necessary to have a regular supervisor, because it is an important device that connects the LANs together. If it malfunctions, the network will not be able to work.
-Next comes the DHCP configuration section. The first is to switch the DHCP service to
On, then I have named and configured IP addresses for them, from Vlan10 to VLan
respectively.
- Next is to set the hostname is CoreSwitch and name the VLANs. Next is to assign IP
addresses for each VLAN along with an IP helper command
