Development of Network Solution for uSoft.com

Data Communication and Networks
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Summary
uSoft.com have the requirement of development of a network solution to connect two of its branch
offices for enabling communication with each other. The current network framework used by the
organization is evaluated for identification of the issues with the network and the new network
solution is developed that would help in meeting the business and technical goals of the
organization. The number of department comprising the head quarter and plan of the company for
increasing the employees is evaluated for the calculation of subnet for each of the department. The
security requirement of the organization is also evaluated for protecting the IT assets of the
company from the internal and external agents. The structure of the HQ is analysed for proposing
the logical and physical network framework and documenting in the report. The building plan of the
company headquarter is evaluated for identification of the placement of the network device and
develop the physical network topology to ensure that the network solution meets the need of the
organization.

Table of Contents
Summary...............................................................................................................................................2
1. Introduction.......................................................................................................................................4
1.1 Goals............................................................................................................................................4
1.2 Purpose........................................................................................................................................4
1.3. Background and Scope...............................................................................................................4
2. Organisational Description................................................................................................................4
3. Analysis of User Requirements (Requirement engineering)..............................................................5
3.1 Mobility Requirements................................................................................................................5
3.2 Security requirements.................................................................................................................5
3.3 Bandwidth requirement..............................................................................................................5
3.4 Application requirement.............................................................................................................5
3.5 Remote access requirement........................................................................................................5
3.6 Quality of service requirement....................................................................................................6
3.7 VoIP Service Requirement...........................................................................................................6
4. Logical Design....................................................................................................................................6
4.1 Security:.......................................................................................................................................6
4.2 Wireless Networks:....................................................................................................................6
4.3 Virtual LANs:...............................................................................................................................6
4.4 Organisational Structure..............................................................................................................7
5. IP Address Allocation Plan:................................................................................................................7
6. Logical Network Diagram:................................................................................................................10
7. Physical Network Diagram:..............................................................................................................10
7. Conclusions......................................................................................................................................12
List of References................................................................................................................................13

1. Introduction
1.1 Goals
The main goals for the development of the network for usoft.com are listed below:
 Improvement of VoIP, wireless and communication between each of the department for
improving the performance of the employees
 Protecting the sensitive information of the organization and configuring access control list
for managing the access of the user to the servers installed in different departments
 Improvement of scalability of the network and allow more number of users to connect and
support the growth of the company
 The performance of the network should not decrease with the increase in the number of
users and different risk such as congestion, packet loss, jitter should be eliminated.
 Access control list should be configured for the management of communication of the user
to access the servers of different departments
 Connecting the wireless access point in different subnet such that it can not be used by the
intruder to gain access of the local network.
1.2 Purpose
The purpose of the development of the network solution is to have a centralized
management on the data traffic flowing from different sources and destination addresses in the
network. The successfully send and receive data packet from the headquarter to the branches and
reduce the response time of the network. The network is needed to be configured such the
employees of the organization can connect with the organizational network from remote location
for improvement of their productivity. The network is needed to be develop such that its
performance is high and there should not be any error in the configuration of the network device
such that failure occur in the system. A DMZ, firewall and network security policy is needed to be
configured such that the access of the user is monitored and the resources are secured.
1.3. Background and Scope
The network solution is developed for usoft.com which is a private biomedical software
development company having 6 departments in the companies headquarter. The network solution is
developed for supporting the expansion of the company and meeting its business and technical
goals. Currently the company have 102 number of employees in the software development
department, 92 employees in solution design, 62 in customer support, 52 in sales, 32 in finance and
22 in human resource department. Sales finance and human resource department have 1 server,
software development have 3 servers and solution design have 2 servers installed in its subnet.
Some extra number of Ip address are kept in reserve for supporting the expansion of the
organization and connect more employees in each of the subnet created for the department.