T2 2019 BN106: Network Design for Head Office and Branch Offices

This report provides a comprehensive analysis of network design, focusing on both Local Area Network (LAN) and Wide Area Network (WAN) configurations for a company's head office and its branch offices. The report begins with an introduction to networking concepts, emphasizing the importance of efficient data exchange and resource sharing within an organization. The LAN design section details the required devices such as servers, routers, hubs, and wireless access points (WAPs) for each floor of the head office, alongside the selection of wired and wireless networking media. It also discusses the use of bus topology and the TCP/IP protocol for data transfer. The WAN design section covers the devices used in WAN networks, including modems, routers, CSU/DSUs, access servers, and core routers, along with the selection of wireless media due to the geographical spread of the offices. The report recommends a packet-switched network structure and the OSPF routing protocol for optimal performance. The report concludes with a summary of the key findings and recommendations, emphasizing the importance of the selected technologies for ensuring efficient communication and data transfer within the organization. The report references various sources to support the analysis and recommendations provided.

Network Design
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Table of Contents
INTRODUCTION...........................................................................................................................3
LAN NETWORKING DESIGN FOR HEAD OFFICE..................................................................3
Devices that are Required for LAN.............................................................................................3
Networking Media.......................................................................................................................4
Network Topologies and Protocols.............................................................................................4
Internet Access Provider..............................................................................................................4
LAN Diagram for Head Office....................................................................................................5
WAN DESIGN FOR ORGANIZATION........................................................................................6
Sketch Diagram for WAN...........................................................................................................6
Devices that are Used in WAN Network.....................................................................................6
Type of Media Used for WAN....................................................................................................7
Suitable Network Structure..........................................................................................................7
Routing Protocol..........................................................................................................................7
Summary..........................................................................................................................................7
REFERENCES................................................................................................................................8
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INTRODUCTION
Networking is considered as practice of exchanging and transfer of data and resources
between computers, over the different channels in an information system. The connection
between devoices could be wired or wireless. Information sharing and transferring is important
for organization in effective working and goal achieving. Better communication and data transfer
can improve the operation efficiency of organization [2]. This report will be providing
information of different devices that are important for LAN and WAN networking in company.
Specific type of media is suggested for organization in report and justification is provided in
order to achieve good networking performance. Various LAN topology also will be discussed for
company. This study is explaining different sources of connection that are useful for
organization. Network plan for each floor is explained in in report. Wireless network diagram for
all five offices will be provided in report. Devices used in WAN network.
LAN NETWORKING DESIGN FOR HEAD OFFICE
Devices that are Required for LAN
There are three departments in the organization building which are respectively situated on
the three different floor of company head office. The IT department is located on the first floor of
company and it is consisting of 30 workstations [1]. For Marketing and sales respective number
of workstations are 15 and 50 and consecutively situated on second and third floor of building.
For LAN and wireless connection organization need different devices that are-
Server- It is a computer program or service that is used to provide functionality to other software
or devices. In the complex networking structure, it is difficult to manage all the data that is
flowing from devices to devices. For better handling of data each floor of need an interconnected
server network that can help the departments to manage the data and operations.
Router- It is a device that used to forward the data packets along networks and connected on the
connection points of two or more than two networks. Routers are used to find the best possible
path way to forward data packets to systems. Number of routers required on each floor depends
on the number of work stations on the floor [5].
Hub- It is networking device that is used to allow multiple devices on one connection. Through
this device multiple workstations are connected to the LAN server for information and data
transfer.
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WAP- Wireless access point is a hardware device that is used to provide connection to Wi-Fi
devices to a wired network. These devices are connected to wired network and provide access of
data and information to various devices that are present on the floor.
Networking Media
There are two types of networking media can be used for the LAN network in organization
which are wired or wireless. As per the case study organization need both type of connection for
their head office [1]. For this organization can use specific devices like router to provide both
wired and wireless connection to workstations. For the fixed workstations wired network can be
used and for mobile and portable devices' wireless connection can be used on each floor. The
wired connection provides constant and continuous high speed to system that is required for
operations of company and wireless network connection will provide portability to employees.
That’s why both type of media connections is required in head quarter of company.
Network Topologies and Protocols
Network Topology- The network topology that is used in the organization is Bus Topology. It is
the simplest and most common used topology around world. In bus topology long single bus or a
cable is used to provide connection to multiple devices. Workstations also can transfer data and
information to other computers using server.
Network Protocol- It is a conceptual model and set of communication protocols used for
internet and similar other system networks. This is commonly known as TCP/IP. Transmission
control protocol and internet protocol are foundational protocols for network. For organization
Internet Protocol is used for better security and efficient data transfer.
Internet Access Provider
Modem is the device that can be used by organization to access internet. Various routers in
the organization can be connected to modem to provide network access to workstations [3].
There are multiple ports are presents in the modem which can allow different devices to access
internet and company data base.
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LAN Diagram for Head Office
Figure- LAN Diagram
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WAN DESIGN FOR ORGANIZATION
Sketch Diagram for WAN
Figure- WAN Diagram for Organization
Devices that are Used in WAN Network
There are different devices that are used in the WAN network to maintain the
communication between headquarter and branch offices [3]. Main devices that are basically
required for WAN network are Modem, Router, CSU/DSU, Access server, WAN switch and
Core Router.
Modem- Modem allows the employees to send data in analogue for long distance transmission.
In this process digital data is converted in analogue form.
CSU/DSU- Channel Service unit/ Data service Unit are used in the WAN network for
monitoring clocking and frame synchronization on line. Also, the errors in the network can be
detected by system.
Access Server- This server is consisting of digital and analogue interface and help multiple user
at same time to access internet and data on the cloud and company server.
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Router- Router can is used in the network to make link between the LAN and Wan of company
to allow the employees of one office to make direct communication with other branch offices.
Core Router- Core router is used to operate multiple telecommunication interface with high
speed to maintain efficient communication and data transfer between offices.
Type of Media Used for WAN
In order to maintain communication between offices of company wireless media is used because
the offices of organization are located on different locations in Australia. This is not economical
for organization to use wired WAN connection. Also, in wired connection chances of error and
damage are high. So, wireless media is much better option for organization.
Suitable Network Structure
For the long-distance communication and data transfer Packet switched structure is most
suitable because in circuit type network structure organization needs point to point connection
between companies which is physical difficult for company [4]. Also, data transfer in packets
reduce the chances of complete data loss. That’s why packet switched network is most suitable
for organization.
Routing Protocol
In the organization there are different routing protocols can be used. There are two options
for company to select one of network for WAN and LAN connection which are RIP and OSPF.
As per the speed, Summarization and multi address use OSPF is better option for company to set
up networking for communication and information transfer. OSPF is most efficient for large size
network.
Summary
This report is concluding the importance of various networking technology for business
organization. Detailed information of LAN network has been provided for interdepartmental
communication and information transfer. Various network topology and protocols has been
analysed to implement in company. For the communication between different company branch
offices and head office has been analysed to achieve better communication for high company
performance. Types of network structure and protocols has been recommended in study.
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REFERENCES
Books and Journal
[1] Edge, S.W., Faccin, S. and Zhao, S., Qualcomm Inc, 2019. System and method for selection of
an evolved packet data gateway for wireless local area network access to an evolved packet
system. U.S. Patent Application 10/243,839.
[2] Layer, A., 2017. Computer Networking: A top down approach.
[3] Noreen, U., Bounceur, A. and Clavier, L., 2017, May. A study of LoRa low power and wide area
network technology. In 2017 International Conference on Advanced Technologies for Signal and
Image Processing (ATSIP) (pp. 1-6). IEEE.
[4] Olufunmilola, A.O.O., Das, S., Bongyong, S.O.N.G., Lee, Y.S., Stone, M. and Soliman, S.S.,
Qualcomm Inc, 2018. Methods and apparatus for cooperating between wireless wide area
network radios and wireless local area network radios. U.S. Patent 9,985,771.
[5] Zhao, Y. and Dong, X., Huawei Device Shenzhen Co Ltd, 2015. Routing device and signal
transmitting method for wireless local area network. U.S. Patent 9,215,671.
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