OZ Dispatch Network Analysis Report for OZ Dispatch Network Design

This report provides a detailed analysis of the network requirements for OZ Dispatch, covering business and technical goals, constraints, and trade-offs. It includes a user specifications table mapping user communities to data stores, network access methods, and traffic. The report details the logical network design, supported by a Cisco Packet Tracer diagram, and outlines IP addressing and subnet calculations. It discusses routing and switching protocols, presents a physical network diagram, and lists network components with their specifications and costs. A test plan and script are also provided, concluding with observations and a summary of the network's design and implementation. The report addresses scalability, security, and performance considerations for the network.

Running head: OZ DISPATCH NETWORK ANALYSIS
OZ Dispatch Network Analysis
Student Name
University Name
Note by the Author

1OZ DISPATCH NETWORK ANALYSIS
Summary
The objective of this report is to thoroughly study the network requirements of the company
OZ Dispatch and present the business and technical goals along with the respective trade-
offs. Then the report provides the user specifications table where the user communities are
mapped with data stores, method of network access and associated network traffic and is then
discussed briefly. Then the logical design is mentioned accompanied by the logical diagram
of the network drawn in Cisco Packet Tracer following which the IP addressing and
calculation for the different subnetworks are provided in a table format and briefly described.
The report then talks about the protocols for routing as well as switching used to implement
the network followed by presenting the layout and orientation of network components in the
physical diagram of the network. These networking devices connected to the network get
listed in tabular format along with respective prices part number, firmware and assigned IPs
as also the total cost is mentioned. Having explained the use of these devices, the test plan
and test script for the network are formulated following which this report ends with
observations concluding notes.

2OZ DISPATCH NETWORK ANALYSIS
Table of Contents
Introduction................................................................................................................................3
Network Study...........................................................................................................................3
Project Scope..........................................................................................................................3
Business Goals...................................................................................................................3
Technical Goals..................................................................................................................4
Business Goal Constraints..................................................................................................4
Technical Goal Trade-offs.................................................................................................4
User Specifications table....................................................................................................5
Logical Network Design........................................................................................................6
IP Addressing and Subnet Calculation...............................................................................7
Routing and Switching Protocols...........................................................................................7
Physical Network Diagram....................................................................................................8
Networking Components Table.............................................................................................8
Explanation of Network Components....................................................................................9
Test Plan...............................................................................................................................10
Test Script............................................................................................................................11
Conclusion................................................................................................................................13
References................................................................................................................................14

3OZ DISPATCH NETWORK ANALYSIS
Introduction
This report thoroughly studies the network requirements of OZ Dispatch and presents
the various business and technical goals along with their respective trade-offs and then
proceeds to conduct a detailed study of the network. The report starts by providing the user-
based requirements in the user specifications table where each user community get mapped
with data stores, network access method and the current network traffic which also get
discussed briefly. Then the logical design is mentioned along with the logical network
diagram built using Cisco Packet Tracer after which the IP addressing and calculation for the
different subnetworks are provided in a tabular format and briefly explained (Airi and
Anderson 2017). The report then talks about the protocols for routing and switching used for
implementing the network and presenting the layout and orientation of network components
in the physical network diagram (Pfaff et al. 2015). These networking devices required for
the network get listed in the network components table where the respective prices part
number, firmware and assigned IPs as also the total cost is mentioned (Abedin et al. 2015).
Having explained the use of these devices, the testing plan and script for the network are
formulated after which the report finishes with observations in concluding notes.
Network Study
Project Scope
Business Goals
1. Advanced mode of communications, wireless connectivity, video conversations
2. Efficient investment in network infrastructure
3. Protection of confidential and sensitive organizational data
4. The company needs to operate with more than 400 employees
5. Relying on technological advancements to overcome challenges

4OZ DISPATCH NETWORK ANALYSIS
Technical Goals
1. The appropriate implementation of company’s network will require upgrading of
computer rooms to be able to support wireless connectivity for the smartphones and
personal laptops of some organizational members.
2. The network should have the ability to scale as the company seeks to expand
3. Wireless network access must be available to each and every employee (both fixed
inside the office premises as also delivery staff who are always on the move.)
4. Employees must be able to access resources of the company from everywhere,
including outside the company
5. Performance of the network has to be very high
6. The network must be highly reliable assuring no network failures
7. The network should also be secured from all information security risks
Business Goal Constraints
Though the company is growing they cannot rely on their existing staff to meet the
added burden by working overtime. There are specific laws against such practises.
Thus, the company needs to expand and recruit additional staff as well as ensure
industry standard wages are being paid. Such activities will require additional expenses from
the company.
Technical Goal Trade-offs
The network is scalable for adding additional branch networks for new CDCs but not
usable for newer devices in the Parramatta office as the traffic for this office is already over
90% (Hong et al. 2015). As a result the performance of the network will get hampered in the
form of reduced bandwidth and high ping. Adding additional networks can address the traffic

5OZ DISPATCH NETWORK ANALYSIS
problem but availability of additional connections in the Parramatta office will continue to be
an issue.
User Specifications table
User Level Number of
Users
Data Store Network
Application
Network
Traffic (BW)
Director 1 Database Server,
Web Server, Mail
Server
Web browsers,
Email,
Messengers, Live
Connect
applications
2730 MBs
Manager 1 per CDC Database Server,
Web Server, Mail
Server
Web browsers,
Email,
Messengers,
1420 MBs
Operational Staff 3 Database Server,
Web Server, Mail
Server,
Authentication
Server
Web browsers,
Email,
Messengers,
5170 MBs
Delivery Staff 20 per CDC Database Server,
Web Server, Mail
Server
Web browsers,
Messengers,
5830 MBs
The user communities include the managing director, managers of the different
CDCs, operational staff and the delivery staff (Huang and Xia 2017). The operational staff
include the data analyst, sales and marketing executive, accountant and two network

6OZ DISPATCH NETWORK ANALYSIS
administrators for managing and diagnosing the network (Woods 2016). The directors,
managers and network admins can bring personal laptops for work (Zhu et al. 2017).
Operational staff are assigned workstations and servers while delivery staff operate with
smartphones only Mansoubi et al. 2016). Though the traffic might be comparatively high, the
issue can get addressed by use of more sub networks as the major network supports twice the
IP addresses that are already assigned.
Logical Network Design
The network design of the company involves acquiring internet access from one of
the internet service providers or ISPs through the router installed (Douros et al. 2017). From
this router a dedicated network connection is provided to the switch of the Parramatta office.
The network connections to the twenty collection distribution centres or CDCs is distributed
from a level 2 switch to the switches that provide access to respective CDCs.

7OZ DISPATCH NETWORK ANALYSIS
Figure 1: Logical design of the network
IP Address Allocation Table
Branch
Branch-
IP
Require
ments
IPs
Allocat
ed
Branch-
Network
Address
CIDR/
Mask
Mask of
subnetwork IP Ranges
Branch-
Broadcast
Address
Parramatta
office 13 14 172.16.1
22.0 /28 255.255.255.
240
172.16.122
.1 -
172.16.122
.14
172.16.122.15
CDCs 420 510 172.16.1
20.0 /23 255.255.254.
0
172.16.120
.1 -
172.16.121
.254
172.16.121.25
5

8OZ DISPATCH NETWORK ANALYSIS
DMZ 2 2 172.16.1
22.16 /30 255.255.255.
252
172.16.122
.17 -
172.16.122
.18
172.16.122.19
172.16.120.0/22 is the major network in use by OZ Dispatch. 524 out of 1022
available IPs get assigned to address the company’s requirements of 433 IP addresses (Lee,
Park and Lee 2016). In the Parramatta office there are four servers for meeting the purposes
of web hosting, email and communication, database and authentication processes.
Routing and Switching Protocols
Methodology for routing as well as switching of the network of OZ Dispatch is kept
relatively simple. It is assumed that the smartphone devices are connected to the network and
obtain IP addresses using the DHCP protocol configured on the router (Aparicio-Navarro et
al. 2017). Through the router IP addresses are assigned manually by the router on the
interfaces for the respective switches. The switches use flood, forwarding and filtering
techniques to assign frames to be transferred to intended recipient (Deiß et al. 2016). The
physical orientation and layout of the routers, switches as well as other network components
can be found in the physical network diagram.
Security has been ensured by using the firewall device Cisco ASA 5505 which
screens the network before reaching the router and serves authentication and thus secures
physical and datalink layers. In Application layer security is ensured by antivirus solutions
for preventing malware attacks. Software side Firewalls use rules and policies in safe
guarding other layers of the OSI model.

9OZ DISPATCH NETWORK ANALYSIS
Physical Diagram of the Network
Figure 3: Physical network diagram
Networking Components Table
Name Application IP Address Part Number Cost
Router RV32X_v1.3.1.12 RV320
(ASC532916ADA01)
$221.86
Switch Smart
Network Application (S
NA)
SG350-28-K9 $444.71
Wireless Wireless LAN 677AW81 $8,999.0

10OZ DISPATCH NETWORK ANALYSIS
Controller Controller Software-
8.1.102.0
0
Firewall
Device
Adaptive Security
Appliance (ASA) Cisco ASA5505-
BUN-K9 ASA 5505
$100.02
Server Windows Server 2016 172.16.122.
2-
172.16.122.
5
IBM POWER8 E880 $14,181
per core
Workstation Windows 10 172.16.122.
6-
172.16.122.
7
Dell XPS 27” AIO
(XPS7760-7000BLK-
PUS)
$2,499.7
7
Smartphone Android OS DHCP Huawei Mate 20 Pro $698.90
Total Cost 27,145.2
6
Explanation of Network Components
In the above table the various components of the network that are used by the
company OZ Dispatch are listed with their respective details regarding product type,
application or firmware used, IP addresses assigned, product part number and cost. Then the
overall cost is calculated and mentioned. These devices are the router, firewall, switches,
wireless Access points, servers, workstations and smartphones. Routers find their use only in
the Parramatta office and by the ISP. The switch of Parramatta office receives a dedicated

11OZ DISPATCH NETWORK ANALYSIS
network connection from the router for providing connections to the servers, workstations
and smartphones while the network for the 20 collection distribution centres (CDCs) are
forwarded to a level 2 switch for distributing the network connections to the respective
switches of the 20 CDCs which in turn provide access to smartphones used by the 20 delivery
staff of the CDC as well as the manager (De Coninck et al. 2016). This is achieved with the
help of wireless access controllers using the DHCP controller.
Test Plan
Test Plan
Item# Req#
Requirement
s
Test
Description Date
Remark
s
R01 RQ_1.1 Office Router
Simulation till
office router
30.04.201
9
S01 RQ_1.2 Office Switch
Simulation till
office switch
30.04.201
9
F01 RQ_1.3
Office
Firewall
Simulation till
office firewall
30.04.201
9
WL1 RQ_1.4
Wireless
Access Point
Simulation till
Wireless
Access Point
30.04.201
9
SE1 RQ_1.5 Servers
Ping from
office router
30.04.201
9
WS1 RQ_1.6 Workstations
Ping from
office router
30.04.201
9
SM1 RQ_1.7 Smartphones
Ping from
office router
30.04.201
9
PO1 RQ_2
Parramatta
network
Simulation of
Parramatta
network
30.04.201
9
CD1 RQ_3 CDN network
Simulation of
CDN network
30.04.201
9
CN1 RQ_4
Company
network
Simulation of
company
network
30.04.201
9
Test Script
Test Script
TestScrip Test TestScript Steps Expected Actual Pass/ Remar

12OZ DISPATCH NETWORK ANALYSIS
t# Scenario Result Result Fail ks
TC01
Test of
router
Simulate
Office
Router
Go to
Simulatio
n Panel
and
simulate
specific
part of
network
Simulation
should be a
success
Simulation
successful Pass
TC02
Test of
switch
Simulate
Office
Switch
Go to
Simulatio
n Panel
and
simulate
specific
part of
network
Simulation
should be a
success
Simulation
successful Pass
TC03
Test of
Firewall
Simulate
Office
Firewall
Go to
Simulatio
n Panel
and
simulate
specific
part of
network
Simulation
should be a
success
Simulation
successful Pass
TC04
Test of
Wireless
Access
Point
Simulate
Wireless
Access
Point
Go to
Simulatio
n Panel
and
simulate
specific
part of
network
Simulation
should be a
success
Simulation
successful Pass
TC05
Test of
Servers
Simulate
Servers
Enter
server IP
in CLI of
router
Ping should
be a success
Ping
successful Pass
TC06
Test of
Workstatio
ns
Simulate
Workstatio
ns
Enter
workstati
on IP in
CLI of
router
Ping should
be a success
Ping
successful Pass
TC07
Test of
Smartphon
es
Simulate
Smartphon
es
Enter
smartpho
ne IP in
CLI of
router
Ping should
be a success
Ping
successful Pass
TC08
Test of
Parramatta
network
Simulate
Parramatta
network
Go to
Simulatio
n Panel
and
Simulation
should be a
success
Simulation
successful Pass

13OZ DISPATCH NETWORK ANALYSIS
simulate
specific
part of
network
TC09
Test of
CDC
network
Simulate
CDC
network
Go to
Simulatio
n Panel
and
simulate
specific
part of
network
Simulation
should be a
success
Simulation
successful Pass
TC10
Test of
Company
network
Simulate
Company
network
Go to
Simulatio
n Panel
and
simulate
specific
part of
network
Simulation
should be a
success
Simulation
successful Pass

14OZ DISPATCH NETWORK ANALYSIS
Conclusion
To conclude, it can be easily observed that the report successfully studies the network
requirements of OZ Dispatch in great detail and presenting various business and technical
goals as well as their respective trade-offs and further proceeds to carry out a thorough
analysis of the network. The report starts by providing the user-based requirements in the
user specifications table where each user community get mapped with data stores, network
access method and the current network traffic which also get discussed briefly. Then the
logical design is mentioned along with the logical diagram of the network is drawn using
Packet Tracer simulation software from Cisco after which the IP addressing and calculation
for the different subnetworks are provided in tabular order and briefly explained. Thereafter
the protocols for routing as well as switching used for implementing the network get talked
about while also presenting the layout and orientation of network components in the physical
diagram of the network. These networking devices connected to the network get listed in the
network components table where the respective prices part number, firmware and assigned
IPs as also the total cost is mentioned. Having explained the use of these devices, the testing
plan and script of the network are formulated.

15OZ DISPATCH NETWORK ANALYSIS
References
Abedin, S.F., Alam, M.G.R., Haw, R. and Hong, C.S., 2015, January. A system model for
energy efficient green-IoT network. In 2015 International Conference on Information
Networking (ICOIN) (pp. 177-182). IEEE.
Airi, P. and Anderson, P.K., 2017. Cisco Packet Tracer as a teaching and learning tool for
computer networks in DWU. Contemporary PNG Studies, 26, p.88.
Aparicio-Navarro, F.J., Chambers, J.A., Chadza, T. and Kyriakopoulos, K., 2017, October. A
look into the information your smartphone leaks. IEEE.
De Coninck, Q., Baerts, M., Hesmans, B. and Bonaventure, O., 2016, March. A first analysis
of multipath tcp on smartphones. In International Conference on Passive and Active Network
Measurement (pp. 57-69). Springer, Cham.
Deiß, T., Cominardi, L., Garcia-Saavedra, A., Iovanna, P., Landi, G., Li, X., Mangues-
Bafalluy, J., Núñez-Martínez, J. and de la Oliva, A., 2016, June. Packet forwarding for
heterogeneous technologies for integrated fronthaul/backhaul. In 2016 European Conference
on Networks and Communications (EuCNC) (pp. 133-137). IEEE.
Douros, V.G., Elayoubi, S.E., Altman, E. and Hayel, Y., 2017. Caching games between
content providers and internet service providers. Performance Evaluation, 113, pp.13-25.
Hong, S., Xu, L., Wang, H. and Gu, G., 2015, February. Poisoning Network Visibility in
Software-Defined Networks: New Attacks and Countermeasures. In NDSS (Vol. 15, pp. 8-
11).
Huang, G. and Xia, J., 2017, May. Studies on ABCD Approach-Based Improvement of Last
Mile Delivery in E-Commerce. In 2017 International Conference on Education, Economics
and Management Research (ICEEMR 2017). Atlantis Press.

16OZ DISPATCH NETWORK ANALYSIS
Lee, Y., Park, H. and Lee, Y., 2016. Ip geolocation with a crowd-sourcing broadband
performance tool. ACM SIGCOMM Computer Communication Review, 46(1), pp.12-20.
Mansoubi, M., Pearson, N., Biddle, S.J. and Clemes, S.A., 2016. Using sit-to-stand
workstations in offices: is there a compensation effect?.
Ordonez-Lucena, J., Ameigeiras, P., Lopez, D., Ramos-Munoz, J.J., Lorca, J. and Folgueira,
J., 2017. Network slicing for 5G with SDN/NFV: Concepts, architectures, and challenges.
IEEE Communications Magazine, 55(5), pp.80-87.
Pfaff, B., Pettit, J., Koponen, T., Jackson, E., Zhou, A., Rajahalme, J., Gross, J., Wang, A.,
Stringer, J., Shelar, P. and Amidon, K., 2015. The design and implementation of open
vswitch. In 12th {USENIX} Symposium on Networked Systems Design and Implementation
({NSDI} 15) (pp. 117-130).
Woods, E., 2016. Operational: The forgotten architectural view. IEEE Software, 33(3), pp.20-
23.
Zhu, R., Liu, B., Niu, D., Li, Z. and Zhao, H.V., 2017. Network latency estimation for
personal devices: A matrix completion approach. IEEE/ACM Transactions on Networking,
25(2), pp.724-737.