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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 Date Received 1st submission Re-submission Date Date Received 2nd submission Student Name Student ID Class Assessor name 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. Studentās signature Grading grid
P 5 P 6 P 7 P 8 M 3 M 4 D 2 D 3
ļ Summative Feedback: ļ Resubmission Feedback:
Grade: Assessor Signature: Date: Lecturer Signature:
- A. Introduction:
- I. The difference between the logical and the physical design:
- Physical Topology:
- Logical Topology:
- The difference between logical and physical design:
- II. Explain the user requirement for this design:
- III. Logical design of networked system:
- IV. Physical design of networked system:
- VI. Addressing table:
- C. Evaluate the design to meet the requirements:
- I. Test plan:
- II. Evaluate the design of the network:
- D. Implement a networked system based on a prepared design:
- I. Diagram of network:
- II. Network implementation:
- E. Document and analyze test results against expected results:
- I. Test network:
- II. Test results:
- F. Conclusion:...............................................................................................................................................
- G. Reference:
- Figure 1: Logical diagram. Table of figures:
- Figure 2: Physical diagram.
- Figure 3: Network diagram.
- Figure 4: Fa0/0.
- Figure 5: Fa0/1.
- Figure 6: E0/1/0.
- Figure 7: Config password and banner.
- Figure 8: Config ospf....................................................................................................................................
- Figure 9: Config DHCP.
- Figure 10: Connection test............................................................................................................................
- Figure 11: Test request DHCP in first floor.
- Figure 12: Test request DHCP in second floor.
- Figure 13: Test request DHCP in ground floor.
- Figure 14: Ping first floor to ground floor.
- Figure 15: Ping first floor to second floor.
- Table 1: Difference between logical and physical. List of tables:
- Table 2: Addressing table.
- Table 3: Test plan.
- Table 4: Test network.
A logical topology is a sign way that goes through a physical topology. It handles the:
- Line discipline
- Ordered delivery of frames
- Error notifications
- Optimal flow control
3. The difference between logical and physical design:
Physical Topology Logical Topology Depicts physical layout of network Depicts logistics of network concerned with transmission of data. The layout can be modified based on needs There is no interference and manipulation involved here. It can be arranged in star, ring, mesh and bus topologies It exists in bus and ring topologies This has major impact on cost, scalability and bandwidth capacity of network based on selection and availability of devices This has major impact on speed and delivery of data packets. It also handles flow control and ordered delivery of data packets It is actual route concerned with transmission. It is a high-level representation of data flow. Physical connection of the network Data path followed of the network Table 1 : Difference between logical and physical.
II. Explain the user requirement for this design:
In scenario, this LAN network is designed for 200 students, 15 teachers, 12 marketing and administration staff, 5 higher managers including the head of academics and the program manager, 3 computer network administrators. Resources is 50 student lap computers, 35 staff computers, 3 printers, router and switch are in needed too. The building has 3 floors, staff computers will be placed in ground floor, first floor and second floor each will have 25 lab computers. Ground floor will be divided in 3 room: admin room will have 1 printer and 3 computers for network administrators; manager room will have 1 printer and 5 computers for higher managers; teacher and staff room will have 1 printer, 15 computers for teachers, and 12 computers for marketing and administration staffs. Each floor will have one 48 ports switch, router will be connected to internet and placed at ground floor.
III. Logical design of networked system:
Figure 1 : Logical diagram.
C. Evaluate the design to meet the requirements:
I. Test plan:
Test number What is being tested Expected outcome 1 Check physical connection All is green 2 Check DHCP address of Student PCs on first floor DHCP requested successfully 3 Check DHCP address of Student PCs on second floor DHCP requested successfully 4 Check DHCP address of staff computers on ground floor DHCP requested successfully 5 Ping F1-12 Lab computers to 3 IT admins Pinged successfully 6 Ping F1-12 Lab computers to F2- 13 Lab computers Pinged successfully Table 3 : Test plan.
II. Evaluate the design of the network:
My design of the network is still not perfect. There are some limitations in the networked system:
- The DHCP requested can be overload if there are too many computers connect to system.
- Waste money because the number of ports on the switch are not used up.
- Change to be attacked from internet. However, my design also has some advantages:
- The design has met the requirements of the manager: enough 35 staff PCs (include 3 admin PCs), 50 lab computers, and 3 printers.
- The network layout has been effectively indicated with clearly explanations.
- Saving money, because have 1 router.
- Network layout are simple for simpler maintenance and improvement. Advice:
- Add firewall software, hardware, and wireless router for student who bought laptop or phone.
- Config NAT so request DHCP are not overload.
D. Implement a networked system based on a prepared design:
I. Diagram of network:
Ground floor switch have 48 ports and contains 35 staff computers and 3 printers. F1-S and F2-S are first floor and second floor switch each have 48 ports and contain 50 student computers. Figure 3 : Network diagram.
This step is configure the static interface of the interface Fa0/1 (which connects to the switch of the second floor and the student PCs). The ip address is 192.168.11.1 and the subnet mask is 255.255.255. Figure 5 : Fa0/1.
This step is configure the static interface of the interface E0/1/0 (which connects to the switch of the ground floor and the student PCs). The ip address is 192.168.12.1 and the subnet mask is 255.255.255. Figure 6 : E0/1/0.
E. Document and analyze test results against expected results:
I. Test network:
Test number What is being tested Expected outcome Actual outcome Result 1 Check physical connection All is green All is green Pass 2 Check DHCP address of Student PCs on first floor DHCP requested successfully DHCP address has been requested Pass 3 Check DHCP address of Student PCs on second floor DHCP requested successfully DHCP address has been requested Pass 4 Check DHCP address of staff computers on ground floor DHCP requested successfully DHCP address has been requested Pass 5 Ping F1-12 Lab computers to 3 IT admins Pinged successfully Pinged with 0% loss Pass 6 Ping F1-12 Lab computers to F2- 13 Lab computers Pinged successfully Pinged with 0% loss Pass Table 4 : Test network.
II. Test results:
All connection is green. Figure 10 : Connection test.
The DHCP address has been assigned successfully to Lab computers in second floor. Figure 12 : Test request DHCP in second floor.
The DHCP address has been assigned successfully to staff computers in ground floor. Figure 13 : Test request DHCP in ground floor.
