Designing a Network Setup for AusEd: Logical Diagram and Hardware Justification

This case study discusses the design of a network setup for AusEd, including a logical diagram and hardware justification. It covers the purpose of the project, assumptions, and justifications for using the selected hardware. The project aims to provide a secure and scalable network for AusEd's 2000+ hosts, with a focus on maintaining the existing accounting system and improving customer relationship management. The proposed network includes routers, cables, switches, transceivers, servers, workstations, and security devices such as firewalls and virtual private networks. The logical diagram shows the integration of these devices across all AusEd branches, with a focus on scalability and flexibility. The hardware selection is based on compatibility and interoperability, with a focus on security and scalability. The project aims to help AusEd grow into a sustainable economy by providing new opportunities for business, health, and education.

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Table of Contents
Introduction...............................................................................................................................................2
Project Description....................................................................................................................................3
Purpose of the Project...............................................................................................................................4
Assumptions...............................................................................................................................................4
Logical Diagram........................................................................................................................................8
Justifications for using the above hardware..........................................................................................10
Growing AusEd to be a sustainable Economy.......................................................................................10
Conclusion.................................................................................................................................................10
References.................................................................................................................................................11
Introduction
In many ways it is the mandate to understand the It infrastructure that need to be used when we
are designing the network set up of a given organisation. The knowledge behind working with
the networking devices is based on the following concepts. We must understand what we want to
achieve and much more the criteria that need to be applied. An organisation is mandated to know
the person in charge of the analysis of what they are expecting at the end of development of the
proposed network design. AusEd is in need of a network setup that is secure in terms accessing it
and sharing and transferring of resources. AusEd have more than 2000 hosts and the failure of

the existing network has led to them asking for a new network that will be able to cater for all the
hosts without complains and breakdowns (Adato, 2015). As the IT manager one must know the
number of hosts that are available and that need to be connected to the proposed system. When
we identify the number of the workstations to be set and the number of people who need to be
served by the proposed network then we will be able to determine the type of equipment’s.
The other major consideration to be put across will be the budget that AusEd organisation is
willing to setup for the said proposed plan of upgrading its network. We need to understand that
for any network design to be set and become successful then we must be able to know what we
need to consider in terms of the issues. Some of these considerations are such as the security,
how flexible and the scalability of the system in case we intend to add other devices in the future.
There are so many security features and devices such as the use of the firewalls and the virtual
private networks.
Project Description
AusEd already have a network system that is in existence. AusEd is in need of making the
network in its environment very good and appropriate in terms of serving its needs. The main
concept that need to be understood here is that there is need to maintain the already existing
accounting system which is running with the exclusive MYOB software’s. The other area is
improving the customer relationship with an intention of using the Sugar CRM software and the
Microsoft Exchange Server which is used when we want to send and receive emails. The project
will a diagram in explaining all the steps followed. The main concept to be understood in this
case study is to give a clear and detailed analysis on the design of the network. AusEd exceeds
over 2000 hosts from all the departments that is from the marketing, sales, course delivery
divisions, admin and others as they will need an evaluation that is detailed in locating and
selecting the appropriate models that is to be used in the design of the proposed networking
system. The Devices that will communicate over the internet and on the network of AusEd are
such as the scanners, printers, photocopiers, personal computers and laptops.
Wide area network in this concept is a big concept and the network design that will be used in
this context, this is because AusEd have other branches which will need to communicate with the
other headquarter. In the logical diagram we will have. Lastly since the institution is a student
premise we will need a WI-FI signal that will allow student to access the network in any place as

far as one is near the proximity within the school premises. The logical design diagram is
composed of some of the servers, personal computers, security devices such as the firewall and
the VPNs among others.
Purpose of the Project
There are plans that need to be achieved by AusEd within a given time and both of them will
entirely depend on the network accessibility. The two plans are the strategic plan and technology
plan respectively.
In the strategic plan the IT manager is needed to put in a strategy plan that aims diversifying the
sources of funds and also to minimize all core non-activities costs. Immediately we implement
the strategic plan we will be able to have a clear idea of what we expect to implement in the
future. Technology plan is the other plan where AusEd needs to create a Moodle where the
student will need connect to the personal computers even when they are offline but they are
connected to the network. Also AusEd may be planning to develop an add-on Moodle which acts
like a project where we will have student to take exams on the school desktops.The main
objective of this project is understanding the network future scalability that will help in
accommodating additional devices in future (Coleman, 2012).
When it comes to understanding the scope of such project it is always very hard, however the
moment we perform a feasibility study and understand the needs of AusEd then we will be able
to give a good analysis of what we are needed. There is need of a network that will be easy to
We need a network that will be easy to manage from the initial stage to the implementations
stage taking care of all the considerations. Some of this considerations are such as the scalability,
flexibility, management and the network security. If the above four considerations are taken care
of when planning and implementing then AusEd will have a smooth and well organized network
for the next 100 years even with the rapid technology growth.
Assumptions
For a project to be said to be successful then there are some things that will need to be assumed
where we will have to achieve the objective of the stated proposal. The following are some of the
assumptions that will need considered.

1. We assume that the management will comply with the needs and all the requirements as
described by the IT manager.
2. The logical diagram will be used in giving detailed information about the system. The
diagram is small but will give the details of what to expect.
3. The other assumptions is that AusEd will have to manage buying all the required devices
for networking without putting some constraints.
4. The cost of the networking devices is just an estimate of the required analysis in terms of
budget plan for the given AusEd network design and Implementation
5. Lastly we will use the Hierarchical design model which has the three layers namely the
core, access and the distribution layers respectively which are arranged in a hierarchical
order depending on the function of each and every layer.
Networking Devices.
DEVICE NAME FUNCTIONS OF THE DEVICE
1. Routers
A router is a device that is used for connecting the other resources with the
internet via the local area network. It is used for communicating on the both
sides and that is Internet Service Providers and the Client himself
2. Cables These are networking devices which are used for connecting the devices
over and across the network. Cables comes in different varieties depending
on the function they are intended to achieve. Some of the cable that will be
used are such as the fiber cable, Ethernet Cat5e,6e and the others like the
RJ45 connectors for connecting the system directly to the network.
3. Switch A system that is used to enhance flexibility and scalability of the entire
network by configuring the networking devices such that they will have to
access the network through the switch which directly communicates with
the router which communicates directly with the internet Service Providers.
4. Transceiver This are devices that are used to provide a broadcasting that will be used to
give WI-FI signals to people within the given proximity in all areas. This
has heightened and increased use of smartphones and laptops as they are
portable and can be accessed anywhere.

5 Servers Servers are used for maintaining the storage and transfer of resources from
the devices in a specific Local area network. Servers comes in many
varieties but it all depends on the function of each server application. Some
of the widely and needed servers in the network implementation of AusEd
are as follows.
- Mail server which is an application server that is used for managing
the transfer of emails across the network. Where the server ensures
that all the sent and received emails are stored effectively and that
they users have no problem in retrieving their chats and records.
- The other application in the server is the Dynamic Host
Configuration protocol Server (DCHCP) which is used to assign the
internet protocol addresses to all the workstations and networking
devices working over the network. 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.
- File server is another server used for managing all the transfers of all
the resources across the network AusEd,
- DNS server is type of a server which is very major in that it is used
when we are matching the domain names with their associated IP
address a within the network.
- There are other minor servers that are used in networking such as
the proxy server and many others,
6 workstations These are the devices that are used for communicating across the network.
These devices include things like printers, scanners and personal computers.
7 Devices for
security
In this case we will major our explanation on the two devices and that is the
firewall which is used for filtering data traffic before the leave or enter the
specified local area network and the Virtual Private Network which is used
for creation of local area network that is very safe and much more it has
features that offers encryption of information for all the travelling packets in

the public internet.
8 There are some other devices that are used to support the entire network of AusEd in general ans
some of them are as follows,RJ 45 connectors and points, scanners for scanning documents and
images, printers for printings the softcopy to hardcopy documents, hubs for sharing to more
devices acting as small routers, modem to be used in case the ISP is not available, Network
Interface Cards (NIC),
-

Logical Diagram
Figure 1 Logical diagram of the network design
As seen in the diagram there are personal computers, IP-phones, Servers, scanners, data center
which are distributed across all the branches of AusEd where they are integrated to work as a
team. The work of the DHCP is to assign the internet protocol addresses to all the workstations
and networking devices working over the network. 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).
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).
Figure 2 packet tracer using logical diagram
Device Name Manufacturer Quantity TOTAL Cost ($)
Laptop HP 100 100,000
Personal Computers Dell 2000 2500000
Servers
Webserver
DHCP server
Proxy Server
File Server
DNS server
Cisco
Cisco
Cisco
Cisco
Cisco
Cisco
5
2
1
2
1
5000
2000
1000
2000
2000
IP-Iphones cisco 90 18000
Switches Cisco 24 28000
Routers Cisco 1 3500
Cables 2500 feet 125000
Firewall device Cisco 4 6000
Virtual Private Networks Cisco 4 6500
Transceiver Cisco 35 22000
Other Costs 70000
TOTAL 2,916,000

Justifications for using the above hardware.
Using the above manufacturers of such devices was because of the feature of compatibility and
interoperability. The devices will communicate very well with each other as integration is very
easily. Devices selection when designing a network will need to be done in a very special way
where we have to consider the best devices that in case of an upgrade then they will be no
problem as they will accommodate such very well without problems. Justifications is on the
basis of the security and that’s why we have the Virtual Private Networks and the Firewalls
which are installed together with the router. The other idea is the scalability and flexibility
Growing AusEd to be a sustainable Economy
There are goals that are set by an organization especially when they want to establish themselves
to the local economy making it to be viable in the economy in an environment that is sound and
socially responsible. In determining the needs of AusEd then we can be able to identify all the
requirements which help in identification and implementation of the design where we will be
able to give appropriate solutions. If the technological advances are put in to application the
environment around may it be the business, health and the education will help in providing new
opportunities for the people globally. The information available will have many implications
about the current guiding the economy accordingly.
In this scenario and case study of AusEd we have applied the technique of E-Waste where we are
needed to apply the electronic waste (the devices that were considered to be obsolete after the
analysis of the existing equipment’s where we have dismantled the already network design in
place and breaking it down in to pieces. In the case of AusEd it was the use of the three layer
Hierarchical network design where have clearly explained the three layer namely the access,
distribution and the core layer.
Conclusion
The research of the case study is meant to give the structure of the entire network that need to be
implemented. 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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