7COM2002 Secure Networks Design and Architecture Coursework Solutions

Assignment Task Description

You are a network engineer. You are asked to design a secure and highly redundant and resilient modern network for an intelligence agency (Like CIA, MI6, MSS, FSB, R&AW, ISI, Mossad etc).

Task1 : Design a secure network based on the specifications and the floorplan below:

Specifications:

1. When writing the assignment use the format described in the next page.
2. There are 2 connections coming inside the house for redundancy. One GE and one 10GE. Both are optical.
3. Install a wireless internet connection coming in, based on a mobile network for redundancy.
4. Create a LAN that is 100% redundant in the case of a single point failure. Redundancy is critical. In the case that one of the circuits fails another one must be up. Address this in writing.
5. The house should have at minimum 10 RJ45 ports for connections in each room apart from the bathroom.
6. All rooms have to have CCTV with wired connectivity.
7. Comms room should have all the racks with all networking devices and servers.
8. The CCTV room should have access to 20 cameras with 4 cameras overlooking the safe house, installed in adjacent buildings.
9. Assume that all PCs operate critical functions.
10. Address adjustments to the network design if there is a need to facilitate a QRF team.
11. The network diameter is not a concern.
12. In the design you must include the full 3 layers of the hierarchical model covered in the lectures and the devices and architectures to secure the networks.
13. At this stage of the project there is no need for any configuration of the devices.
14. Cost is not a factor. That does not mean using a carrier class router when you only need an enterprise class router or using a 48 port switch when you need a 24 port one.
15. You have to consider scalability for the future and address that in writing.
16. You do not have to describe the software needed. For example, OS or VM technologies.

What is required from you:

1. You will need to prepare 2 network diagrams illustrating your solution. First a logical one like the one in the lectures (see 3-layer cisco hierarchical model lecture) and then a physical one using the floorplan. The diagrams have to be inside the document you submit.
2. First create the logical diagram as in the lectures so you can have one to one discussions and receive feedback from your tutor.
3. You can use the floorplan as a template although you have to demonstrate connectivity between different rooms in your design. Ideally you can use Microsoft’s Visio since the networks lab has the software and I can provide you with feedback. You can use other drawing software as long as it can be viewed in our PCs. Please don’t use cisco packet tracer as it has limitations for this design.
4. You have to provide a written report between 1000 and 3000 words along with your drawings on how your design fulfils the specifications and also justify your selection of the network hardware. Please do not exceed this limit by more than 10%.
5. You have to search, select, critically evaluate and reflect on the real network hardware chosen for your network designs backed up by appropriate references.
6. Your solution has to present all network devices, hardware and cabling needed.
7. You have to use legends as part of your design with full description of your cabling and network devices and reasoning in the report’s text.
8. There is a number of ways that you can prepare a network diagram and advice will be provided. One of the goals is to be able to communicate your design efficiently in a professional manner.
9. You need to use appropriate citations and referencing (IEEE or Harvard) for the devices you propose. There are various websites that sell this type of equipment and there are also the main manufacturers that list their products and specifications. There are many companies and although I am very familiar with most Cisco and Juniper network products you can choose any other manufacturer like for example Ciena or Huawei etc.

Use the following format for your assignment sections. The diagrams should be included inside the document.

Section 1: The 2 diagrams

Section 2: Design Description. Justification of how your design and legends fulfil the specifications. For example, Security, redundancy, scalability, benefits of the three-layered hierarchical cisco model in your design, cabling etc.

Section 3: Network hardware including Critical evaluation and/or reflection on your selection of the network hardware backed up by appropriate references (IEEE or Harvard).

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