IT Infrastructure Management Science

Running head: IT INFRASTRUCTURE MANAGEMENT
IT INFRASTRUCTURE MANAGEMENT
Name of the Student
Name of the University
Author Note

1IT INFRASTRUCTURE MANAGEMENT
Table of Contents
Introduction:...............................................................................................................................3
Network Devices Required........................................................................................................3
Communication Software and Application................................................................................4
Working of the Network Devices..............................................................................................6
Conclusion................................................................................................................................10
References................................................................................................................................11

2IT INFRASTRUCTURE MANAGEMENT
Introduction:
The ABC Company provides IS services to its services and clients that include
webpage, database and email. The floor plan of the company includes three floors where the
ground floor is the main office of the company. The three offices consist of various devices
such as computers, printers and many more. The website of the ABC Company provides
general information to the customers and clients can purchase various products and services.
All the employees of the company have an email account.
The report discusses about the devices of the network those are required in order to
accomplish the requirements of the organization. The report focuses on the communication
software between the client and the server. Lastly, the report discusses about the OSI model
and the working of the model using a diagram.
Network Devices Required
The network devices those are implemented in the ABC organization include
switches, routers that include ISP routers and service routers, firewalls, printers and the
computers in the three floors of the Company. These network devices will help the ABC
Company in order to accomplish the requirements of the organization consisting of the day to
day to actions of the company.
A switch is a network device that is utilised at the access of the layer 2 of the OSI
layer. A switch can be utilised in order to connect more than one host to the network. In this
network, a switch is utilised in order to connect all the computers and the printers to the
network of the company (Teuscher, Palsky and Palfreyman 2018). A switch sends a message
to a particular host. When any of the host on the network or a switch forwards a message to
any other host on the similar switch or network, the switch obtains and then decodes the
frames in order to read the portion of physical address of the message. There are various

3IT INFRASTRUCTURE MANAGEMENT
types of switches including modular switches, fixed configuration switches and stackable
switches.
A router is a device of switching for the networks that is capable of routing packets of
network that is based on their addresses to various other devices and networks. Among
different things, they are utilised for access of internet or to connect the offices of branch to
the main office through virtual private network (Alani 2017). The router works at the layer 3
of the OSI model. A router has more than one interface and obtains packets of data via them.
The main function of the router is to examine the packets of data those are incoming and then
determine the interface to forward the packets of data to.
A firewall is used in the network of the ABC Company. It can be a component of
hardware or program of software that is designed in order to administer and filter the traffic
of network that is incoming or outgoing. The firewalls are installed in order to prevent attacks
on the network (Shin 2019). A firewall usually works on the layer 3 and layer 4 of the model
of OSI that is network and the transport layer. The firewalls also work on the layer 7 of
model of OSI that is application layer.
Communication Software and Application
The client-server communication includes two mechanisms a client and a server. There
are usually more than one client in communication with a single server. The client first sends
a request to the server and then the server respond to the requests of the client. A client does
not split its assets but the client requests services from the server (de Souza Soares et al
2018). The clients start sessions of communications with the servers that make the incoming
requests wait. The communication software and application of client server include email,
network printing and the World Wide Web. The characteristics of the client-server
communication are as follows (Oakes et al 2019):