COIT20264 Network Design - Desklib

The report prepared for Utopimed medical center states the project goal and scope for aligning the requirement with the developed network solution. The business goals and the constraints for the development of the network is discussed along with the technical goals and tradeoffs such that the requirement is clarified and the network is developed without any errors. COIT20264 Network Design document type. Assignment type not mentioned.

Running head: COIT20264 NETWORK DESIGN
COIT20264 Network Design
Name of the Student
Name of the University
Author’s Note

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COIT20264 NETWORK DESIGN
Executive Summary
The report prepared for Utopimed medical center states the project goal and scope for aligning
the requirement with the developed network solution. The business goals and the constraints for
the development of the network is discussed along with the technical goals and tradeoffs such
that the requirement is clarified and the network is developed without any errors. An user
community, data store, network application and traffic flow table is created for the estimation of
the network usage and developing the network such that it is scalable and available at the user
needs. A network diagram is created and justified for the usage of network device is given along
with the cost and test plan for testing the working of the network.

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COIT20264 NETWORK DESIGN
Table of Contents
Project Goal.....................................................................................................................................3
Project Scope...................................................................................................................................3
Business Goals and Constraints.......................................................................................................3
Technical Goals and Tradeoffs........................................................................................................4
User Community Table....................................................................................................................5
Data Store Table..............................................................................................................................6
Network Applications......................................................................................................................7
Traffic Flows...................................................................................................................................8
Addressing and Naming Model.......................................................................................................9
Explanation and Justification of Network Design...........................................................................9
Routing and Switching protocols and Security Mechanism..........................................................10
Network Devices...........................................................................................................................10
Test Scripts....................................................................................................................................12
References......................................................................................................................................13

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COIT20264 NETWORK DESIGN
Project Goal
The report is prepared for the Utopimed for designing a network for covering all the
medical centers located in the capital city of Australia. The main goal of development of the
network is to enable secure transferring of patient data between the medical centers such that
store them securely in the datacenter. The development of the network would help the doctors
and the patients to view their reports and diagnosis report from remote location and increase the
efficiency of the treatment process. Thus the time needed for getting the details of the patients
can be reduced and help the medical representatives to provide quick diagnosis.
Project Scope
The development of the enterprise network would help in integration of different system
and combine the communication strategy and protocols for improving the performance of the
medical centers. The systems connected in the network would communicate and retrieve
information form the data center such that it can be used for diagnosis of the patient health
condition and provide faster response. The systems are needed to provide faster, secure and
reliable performance and is needed to support different platform for sending and receiving data.
The enterprise network solution can reduce the communication gap between the doctors and the
patients and help in delivering faster and efficient service to its patients.
Business Goals and Constraints
The goals for the development of network for Utopimed medical center are given below:
 To improve the consolidation of general performance of current Utopimed network
 To improve the network capacity and keep provision for future scalability
 To improve fault tolerance, security and efficiency of the network

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COIT20264 NETWORK DESIGN
 To improve the response time of the network
 To allow different types of network device to be connected with the network
The development of the backend network is needed to fulfill the availability, scalability,
manageability, security and affordability needs of the medical center. The requirement is needed
to be documented as the service level agreement and tradeoffs are needed to be made during the
phase of logical network design for the selection of media and network device selection
(Coutinho et al. 2016). A wireless connection is needed to be provided to the patient residing in
the waiting area for connecting their mobile device and access the internet or medical certificates
issued by the doctor.
The constraint for the development of the network are given below:
 The selection of appropriate network technology and skills of the development team
causing bottleneck
 Uncertainty in future growth of the medical center and accommodation of the changes in
needs
 Bottleneck in bandwidth due to ISP and support of VoIP and VPN by the service
provider
The constraint for the development of the network is the changes in requirement and the
bandwidth bottleneck for transferring large volumes of data between the different medical
centers. The creation of backup servers and redundantly storing the files and information can
also incur huge cost for the network.
Technical Goals and Tradeoffs
The following are the technical goals for the development of the network:

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COIT20264 NETWORK DESIGN
 Reliability of the network hardware devices and use of redundant link for reducing
network downtime
 Minimizing network response time and reduce packet loss and congestion in the network
 The accessibility of the network for the unauthorized user and devices is needed to be
restricted.
The main technical goal for the development of the network infrastructure is to connect
all the medical centers and have a centralized control over the centers. A structured design
process is needed to be followed such that data generated from the medical equipment’s such as
X Ray, CT Scan Machine, MRI, Ultrasound can be stored in the data center and accessed by the
patient and the doctors for diagnosing the health condition of the patient.
The following are the list of tradeoffs identified for the development of the network:
 Developing QoS policy for monitoring data packet and its source
 DMZ zone creation and maintaining access of the users to the servers
 Separating the network by subnetting IP address for different departments.
For the development of the network the access of the enterprise network is needed to be
managed such that the patient data and information are kept secured in the data centers. The
changes in the access needs is needed to be restricted and the flow of traffic should be
continuously monitored for eliminating the vulnerabilities in the network.
User Community Table
User Community
Name
Size of Community
(Number of Users)
Location(s) of
Community
Application(s) Used
by Community
Doctor 100 Australia Email, Web

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COIT20264 NETWORK DESIGN
Patient 500 Australia Android Service,
Email, Web
User 100 Australia Android, Email,
Web
Administrator 5 Australia WEB, Email
Hospital 25 Australia Email, Web
Data Store Table
Data Store Location Application(s) Used by User
Community (or
communities)
Email Sydney, Melbourne,
Canberra, Perth,
Brisbane, Darwin,
Hobart, Adelaide
SMTP 500
Simple Files Sydney, Melbourne,
Canberra, Perth,
Brisbane, Darwin,
Hobart, Adelaide
FTP,STTP 300
Radiology Data Sydney, Melbourne,
Canberra, Perth,
Brisbane, Darwin,
Storage 250

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COIT20264 NETWORK DESIGN
Hobart, Adelaide
Lab Data Sydney, Melbourne,
Canberra, Perth,
Brisbane, Darwin,
Hobart, Adelaide
TELNET, FTP,STTP 500
Reports Sydney, Melbourne,
Canberra, Perth,
Brisbane, Darwin,
Hobart, Adelaide
FTP 15
Media Sydney, Melbourne,
Canberra, Perth,
Brisbane, Darwin,
Hobart, Adelaide
Media Streaming 300
Network Applications
Applicatio
n Name
Traffic
Flow
Protocol(s
)
User
Communitie
s
Data
Stores
Bandwidth
Requirement
s
QoS
Needs
FTP Client/
Server
TCP/IP Patient,
Medical
Centre,
Server
and
Hosts
8 Mbps Respons
e < 125
ms.

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COIT20264 NETWORK DESIGN
Admin
TELNET/
SSH
Server/
Server
TCP,HTTP
, SSH
Admin Server
s
10 Mbps Respons
e
<100ms
STTP Client/
Server
WEB Admin,
Medical
Centre,
Patient
Hosts 10Mbps Respons
e <
125ms
SMTP Client/
Server
Email Patient,
Doctor,
Admin
Hosts 5 Mbps Respons
e <
150ms
Traffic Flows
Parameter Value
Network traffic Source 5
Nodes 15, 20, 50, 80
Type of traffic CBR
Simulation time 30sec
Area of Coverage 1000m * 1000m
Size of data packet 256 bytes
Pattern of mobility Random

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COIT20264 NETWORK DESIGN
Addressing and Naming Model
The management of the hardware is important with and each of the device is needed to be
uniquely identified such that it can be easily troubleshoot. A flat address structure is followed for
the network device where the IP address and the MAC address of the device are used for
identifying the device and administer them. The flat address structure cannot provide details of
the location of the device and thus they are named with the location and followed by the device
name such that it can be easily identified for administering.
Explanation and Justification of Network Design
The network design prepared for Utopimed medical center is developed following the top
down network methodology. The simple network design principles are followed for the
development of the network for meeting the current needs of the medical center and eliminating
the potential bottleneck. The computes of each of the chamber is needed to transmit data
wirelessly to the patient and thus the wireless access point is installed in the reception area that
would serve the needs of the patients. For each of the department separate switch is used and it is
needed to be configured as VLAN for management of the access of the users. At the entry and
exit point a physical firewall is installed that would help to restrict the unknown user to access
the intranet of the organization.
Routing and Switching protocols and Security Mechanism
A separate router is used for management of access of each of the medical center and
separate area is needed to be defined for each of the medical center using the OSPF routing
protocol. The integrity of the routing protocol with the other network device used for the
development of the network framework is needed to be managed such that the availability,

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COIT20264 NETWORK DESIGN
scalability and integrity of the network is maintained (Ayers et al. 2018). The switch is needed to
be configured with VTP server version 2 such that there is automatic sharing of VLAN
information between the other switches configured as VTP client.
Network Devices
Device name Quantity Cost
Cisco Catalyst 6509 Switch 5 27000
Cisco Catalyst 3560 Switch 13 106600
Cisco Nexus 7000 Switch 2 24200
Cisco ASA5510 firewall 7 17500
Cisco Catalyst 3560 L3
Managed Switch
10 24000
Cisco VPN router 4 1000
RJ 45 Jack 12 600
Test Plan
What Why How When Who Resourc
es
Expected
Outcomes
Actual
Outcom
es
Remar
ks
Performa
nce Test
Testing
response
time
Usin
g test
script
s
20/10/20
19
Admin Test
script,
laptop
99%
performa
nce

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COIT20264 NETWORK DESIGN
Load Test Testing
performa
nce under
high load
Test
script
01/11/20
19
Netwo
rk
design
er
Test
Script,
Laptop
Capabilit
y <=10
Gbps
Security
and
access
control
Used for
checking
security
loophole
Test
Scrip
ts
15/09/20
19
Admin Test
script,
laptop
No flaws
Test Scripts

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COIT20264 NETWORK DESIGN

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COIT20264 NETWORK DESIGN
References
Ayers, H., Crews, P., Teo, H., McAvity, C., Levy, A. and Levis, P., 2018. Design considerations
for low power internet protocols. arXiv preprint arXiv:1806.10751.
Coutinho, R.W., Boukerche, A., Vieira, L.F. and Loureiro, A.A., 2016. Design guidelines for
opportunistic routing in underwater networks. IEEE Communications Magazine, 54(2), pp.40-48.