ISYS201 IT Infrastructure: A Detailed Network Proposal for AusEd Inc.

This report presents an IT infrastructure proposal for AusEd Inc., a not-for-profit private education organization, focusing on improving services for staff and students. As the IT Infrastructure manager, the proposal outlines a new IT infrastructure design, including a network diagram with servers, clients, and security features like firewalls and VPNs. The report justifies hardware choices based on interoperability, scalability, and compatibility. It details the project's scope, purpose, assumptions, and a logical diagram of the proposed three-layer hierarchical network design. A list of networking equipment and a budget analysis are provided, along with a justification for the selected hardware brands, ensuring alignment with AusEd's business needs and future growth.

Table of Contents
Introductions..............................................................................................................................................2
Project Description.....................................................................................................................................4
Scope and Purpose of the Project..............................................................................................................4
Logical Diagram Design...............................................................................................................................6
List of Equipment’s for Networking............................................................................................................7
Budget Analysis...........................................................................................................................................7
Justification of the selected Hardware’s brand...........................................................................................8
Conclusion...................................................................................................................................................8

Introductions
Use of ITIL (Information Technology Infrastructure Library) have been widely recognized by many
organizations like AusEd. A network analysis of the proposed network of AusEd will be a challenge to do
it as we will need to do a feasibility study with an aim of knowing all the functional requirements and the
nonfunctional requirements of the system. This study will give us the analysis of the equipment’s that
can be used with the new network structure proposed and those that we will do away with for good as
they might not be compatible with what we anticipate to install. In developing a network there are two
major components named as the software and the hardware components respectively. This two
components helps in classifying the internet and the network when both are accessed as they will help
the organization in meeting its objectives. . AusEd institution has a project that needs to build a system
IT infrastructure that will be able to host about 2500 workstations in the institution without having
problems and delays in data traffic. As the IT manager we are required to give sense to the management
of AusEd to what we are needed in achieving the stated needs and requirements.
Software components are those components that are used for utilizing the services of the network in
the network environment where they enable all the protocols that are needed when we are
communicating with all the hardware components and hence allowing them connect efficiently and be
able to use. Hardware components are those components that can be seen physically and we can touch
and feel them as they utilize the environment of the network where they are used directly as the user
interact with them such as the workstations, routers, servers, firewalls, laptops, computers, scanners
and many others. In the Software components the major software is the Network Operating System
which we will be able to understand only when we have installed and configured the hardware devices.
The OS of the network will be used in managing the resources over the network and it mostly installed
on the main server which is used for managing the entire network resources hence allowing easy
transfer and transmission of resources especially to cases where we are sharing resources. After
understanding all the software and the hardware components then through the integration of both we
can come with the definition of both Network and the network IT infrastructure.
Network can be defined as the grouping of the hardware components and those of the software which
are very important and necessary when we want to connect the hardware devices in the system with
other devices in other organizations using the same network via the internet (Edu, 2013). Network can
also be said to a system where devices work together as a team where they are integrated such that
they can share information and resources over the network. Network IT infrastructure is referred to as

group of physical hardware and the logical components which is needed in providing some features over
the network which may include the network security, the access control, network security, Routing and
the capabilities of switching (Oracle, 2015).
Rapid growth of the technology each and every day has resulted to us looking for new upgrades that are
stable in terms of the design, updates and using. As an IT manger we have a challenge in giving the best
solution of the network design that is to be proposed to AusEd such that will not become obsolete
within a short period.
AusEd has stated that we need to know what they are entitled to achieve and the proposed system will
do an analysis which in terms expect to achieve the its objectives. We can only do a good analysis and an
evaluation on the basis of the plan formulated hence helping us in knowing the appropriate and best
solution of the proposed network design which will give a good flow of information from one place to
the other in terms of the number of hosts available and how the specified devices interacts and
interconnects with each over the networks entitled to have us know what they have that can be used in
the proposed setup of the network design. (Adato, 2015). Just like in any other organization we will
need to consider some major factors that will be need to be considered and looked upon when
interacting with the system. Some of these factors are such as the issue of security, the flexibility
concern, management of the network, scalability in a manner that it will allow extension, affordability
and availability of resources for networking and lastly is how accessible and reliable the network will be.
In this report we are required to give a detailed analysis of the following areas to give the management
of AusEd in developing a good network structure that will help in catering for its 2500 hosts in its
premise and also access to its website for the distant learners making it easy for them to interact with
the system. Some of these areas such as:
The description of the project
Scope of the project
The purpose of the project
The assumptions made when doing the analysis
The logical diagram of the proposed network design (Three-Layer hierarchical network design)
The list of equipment’s used when we are accessing the network.
Justifying the hardware used and stating the reason for their selection
A conclusion summarizing all of what have been covered from the other areas.

Project Description
The main idea in this context is giving out a plan on what we are proposing to achieve by the end of the
end of implementation. This will be through listing the equipment’s of what is available what we will
need to add depending on what have been stated to be used for developing the network. AusEd aims at
improving its relationships with its customers where they have an intention to use CRM software’s and
the Microsoft Exchange Server 2007 to help in facilitation of transfer of emails over the entire network.
Scope and Purpose of the Project
When we want design the IT infrastructure as AusEd already have a strategic plan and technology plan
then we need to come with a network design that is friendly and that will be used when interconnecting
with then internet via the network that will be setup. In the strategic plan AusEd aims at looking to two
elements one is to minimize the cost of all the results of the core no activities and second is increase all
the resources that diversify the sources of fund. After the Strategic plan have been implemented then
there is a desire to implement the technology plan where we are to develop an offline Moodle to help in
managing all the students in maintaining their personal computers over the network and hence making
them to have easy ways when accessing the resources even when they are offline as far as they are
connected over the network. The technology plan is development of an add-on Moodle that will be used
to make the student able to do photo exam.
The main objective of this project is understanding the network future scalability that will help in
accommodating additional devices in future (Coleman, 2012). We would also a network design that
will be easy to manage when problems arises and when there is need for troubleshooting in cases
when they arise. Also the security of the network will be a great consideration as making this
network design we will need to consider the security of the network and that is why we have told
to explain on the use of security devices and software’s such as the firewalls and the virtual
Private networks (VPNs).

Assumptions Made
In any development of a plan or a project there must arise some assumptions that will be needed
to be made so that the system will work efficiently and that the development or implementation
process will move on smoothly without problems. Some of this assumptions are such as:
1. We intend to use the three layered hierarchical network design model which we assume
will be affordable and that will provide features such as the scalability, reliability and the
flexibility of the system in case we will need an extension in the future.
2. We assume the system and the network engineers have some IP addressing, also they
have subnetting and the knowledge of routing when implementing the system network
design.
3. Systems and the network engineers are assumed that they have a basic understanding of
how Cisco routers and how the switches work in the implementation and development of
the project.
4. We assume that the small network design will cater for the entire network design when
doing the real implementation and construction phase and operations.
5. We have assumed that the price given for the networking devices are just an estimated of
the actual price or the cost.

Logical Diagram Design.
Figure 1 Logical Design diagram
DNS server in AusEd is matching all the web files of all the resources hosted in the server where
while the webserver is used to host the website of AusEd helping the distant learning students to
be able to access data and information on their browsers in cases when they login to the school
website portal (Meena, 2017). The DHCP is set in a manner that when a workstation is added in
the system or in the network then it is mandated ton configure the IP address of the stated
workstation automatically. When we are having problem we can be able to detect the source of
the problem that will help us tackle the problem as with the DHCP server will be able to know
the IP address of the stated machine and hence becoming easy to troubleshoot the problems
associated. (Macken, 2016).

List of Equipment’s for Networking
The following is the list of all the devices that are used when interacting with the system and that will be
used to connect to the network.
1. Servers- which may be the application server, proxy server, DHCP server, mail sever, DNS server,
webserver depending with the functions they perform leading to the selections of the
appropriate server depending the tasks that need to be performed.
2. Switches- this are used for offering connections to the network where they used in helping the
device to access the network in the distribution layer.
3. Routers - used for connecting to the internet
4. Firewall- security device for filtering the data before it leaves or enters the network.
5. VPN- it is also security device that encrypts data in a manner it is the receiver and the sender
can decrypt.
6. Personal computers
7. RJ 45 connectors
8. Transceiver- is a Wireless Access point device that helps in broadcasting wireless signals
9. Laptops for the Executives
Budget Analysis
Device Manufacturer Quantity needed Price in ($)
1 Servers Microsoft 12 12,000
2 Switch Cisco 31 31,000
3 Router Cisco 1 4,000
4 Firewall Cisco 2 3,000
5 Virtual Private Network Cisco 3 4,500
6 PCs Dell 2300 2,300,000
7 RJ 45 connectors 3000 3,000
8 Transceiver Cisco 15 15,000
9 Laptops Dell 50 50,000
10 Other services and Devices 30,000
Total 2,452,500

Justification of the selected Hardware’s brand
We have used the following devices with reference to the following considerations.
1. Interoperability
2. Scalability
3. Updating of the system with the new technologies
4. Flexibility
5. Integration and compatibility.
The manufacturers of the above stated devices have some major features that are commonly applied
when producing and manufacturing their devices. This has helped in making the world a better place
such that even when AusEd buys a switch from Cisco it will be compatible with a Microsoft server. Cisco,
Dell and Microsoft works hard in hard in making the work of the organization is done accordingly and
such that the integration is a success. This has also helped in improving the scalability and the security
of the network in that we are able to communicating with the system.
Conclusion
The idea behind this case study is coming up with a structure of the AusEd network that we are needed
to implement within the given time and the available resources. We have discussed all the areas from
the project description explaining all the way to the list of equipment’s used and the detailed
explanation of the logical diagram. The budget of the expected expenditure is analysed as shown above.
The choosing of the above hierarchical network design model is because of giving a room for
additional devices where we need the network design to be scalable and flexible unlike in the
Flat network design model.
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