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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 TRƯƠNG KỶ NGUYÊN Student ID GCD2 10354 Class GCD1105 Assessor name TRAN THANH TRUC 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:
Task 1: Provide a logical/physical design of the
networked system with clear explanation and
addressing table (P5)
1.1, Overview of Logical Design
In networking, the logical design refers to the high-level representation of how information in a network flows. A logical network diagram is a graphical representation that depicts the logical components of a network, including servers, routers, switches, firewalls, and other devices, as well as their interconnections and network protocols. The logical network design is composed of segregated networks that are implemented physically using virtual local area networks (VLANs), which simplifies routing strategies and provides flexibility in
network design. A logical design typically includes the different segments of the network (such as subnets) and how they are connected to each other. Logical network diagrams can be used to document a network's structure and to plan changes or upgrades in the network. They can also be useful for troubleshooting network issues by providing a clear visualization of the network's components and their relationships. In contrast, a physical network diagram focuses on the physical devices and the cable connections between them. Physical diagrams typically include information on the network devices' make, model, and physical location. Together, the logical and physical network diagrams create a complete understanding of how the network is configured and how it operates.
1.2, Overview of Physical Design
In networking, the physical design of a network refers to the physical layout of the devices and media used for its installation. This includes the devices such as routers, switches, servers, modems, and other networking equipment, as well as the cables, jacks, and ports used to connect them. The physical design also includes the arrangement of these devices, such as where they are placed and how they are connected, usually depicted in a physical network diagram.
- Resources: 50 student lab computers, 35 staff computers, and 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.
1.5, Logical design of the network
1.6, Physical design of the network
Figure 1 illustrates Physical Rack Closet (1/2)
Figure 3 illustrates PC and Printer located Area
1.7, IP Address table
Device Interface IP Address Subnet mask /slash Default WEB server DHCP server FTP server
- The remaining rooms can use the staff room printer. All rooms can connect to the server room. The disadvantages of my network design
- The risk here is that if one of the switch devices is fail, all the will may be stop working, as well as the router device.
- As my technical quick point, all the networks are connected together which is not good and may be a risk of security because such as student not worth to connect to Network Administrators devices. In conclusion the design has solved the user's basic requirements and provide solutions to expand for the future.
2.3, Advices and solutions come with my design
For many businesses, the hidden costs of dealing with a slow network can be like death by a thousand paper cuts. Files take longer to send, cloud applications take longer to load, calls are dropped, and everyone loses productivity waiting for tasks to finish. Because of the urgency of having a reliable network connection, many businesses are quick to respond to the situation by throwing money at a network upgrade that may not work. While the cost of fiber Internet is more affordable than ever, it's still important to diagnose alternative solutions to guarantee peak performance.
- Determine that your network is at fault. Is your network actually slow, or do you just have slow computers? You can't proscribe a cure without knowing the disease, so it's best not to leap to conclusions. Make sure that the sluggish response time is more than just a localized issue before springing for an infrastructure upgrade.
- Offer guests a different network. Network slowdowns are sometimes the result of guest behavior. While it's unlikely that a single guest streaming a YouTube video in your lobby is the source of your troubles, you could have problems if you frequently host a large number of guests who need Internet access. Rather than risk them inadvertently slowing down your operations, offer them a login to a guest network.
- Educate personnel about user behavior. Employees need down time, and many choose to spend that time on their computers. If you notice a slowdown during lunchtime every day, it could be because a couple coworkers have taken the opportunity to boot up a video game or stream a show on Netflix. (Yes, it's been known to happen!) They probably
aren't even aware of the network resources they're draining during work hours, and are just trying to enjoy their lunch. Most will be happy to choose a different lunch pastime if you take a moment to talk to them about network performance. Other personnel behavior that might be causing a slowdown could involve poor file sharing practices, such as emailing large PPT files to multiple contacts rather than editing them via a shared cloud file. If you have employees frequently (and needlessly) sharing extra-large files, teaching them how to compress the files or how to use cloud drives can cut the strain they're placing on the network.
- Use VLANs to segment low-priority traffic. VLANs (Virtual Local Area Networks) are an excellent way to partition your network resources such that the most critical traffic receives the highest priority. Essentially, a VLAN offers the benefits of a completely separate network, without having to rewire the entire office. You can group VLANs based on computer use and function, even if they're in separate parts of the office. VLANs can also improve security by segmenting your systems from each other. That way, even if one part of your network becomes compromised, the VLAN can act as a barrier, keeping other parts of the network safe.
- Check for viruses or system defects. Speaking of viruses, malware is known for slowing down networks and inhibiting workflows. If you suspect your network slowdown might be the result of malicious network activity, you should have an emergency IT specialist run a check on the situation right away. Slowdowns can also be the result of different network components growing old and defective. It's often relatively painless to replace these broken components, rather than upgrade the entire network.
Figure 6 illustrate teacher PCs on ground floor Figure 7 illustrate manager PCs on ground floor
Figure 8 illustrate 3 network administrator PCs and the printers on ground floor Figure 9 illustrates staff PCs on the ground floor Setting up all the PCs one by one, include IP address, subnet mask, and default gateway with the corresponding data as follows
… And the same with other PCs
3.2, Set up switch devices with command lines, including VLANs and
trunk command
- Create VLAN with command lines as illustrate in the screenshot below Figure 12 illustrates command to create VLAN
- Assign each VLAN with assign VLAN to multiple interfaces command. The screenshot below illustrates assigning VLAN 10 to multiple interfaces for student PCs on floor 1. Figure 13 illustrates command to assign VLAN 10 to multiple interfaces for 15 students PCs on floor 1
- Trunk Between the Switches, the screenshots below will illustrate trunk switch device on floor 1 and switch device on ground floor
