Advanced Network Design: Analysis, Configuration for Call Center

This report details the development of a network solution for a 24/7 call center, emphasizing continuous availability and minimal data packet delivery time. The report includes a requirement analysis, identifying necessary network framework components and suitable protocols for router and switch configurations. Requirement gathering techniques involved brainstorming, questionnaires, and stakeholder meetings to assess user needs and building floor plans. The network design incorporates six layer 3 switches, layer 2 switches for management, Cisco 2811 series routers, and Cisco 7960 VOIP phones. The network is segmented into subnets based on the organization's floor plan to enhance security and efficiency. Security measures include a SYSlog server for monitoring network traffic. VLANs are implemented for data and voice traffic to improve performance and reduce collisions. The design aims to meet the call center's requirements for the next five years, with scalability for future growth. Redundant links are incorporated to ensure continuous connectivity, and tools like PRTG network monitor are suggested for performance analysis. The report concludes that by identifying the call center's requirements, errors in the network solution can be minimized, leading to an effective and available network.

Running head: ADVANCED NETWORK DESIGN
Human Factors in Network Analysis and Design
Name of the Student
Name of the University
Author’s Note

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Table of Contents
Introduction...........................................................................................................................................2
Task 1.....................................................................................................................................................2
Requirement Gathering.....................................................................................................................2
Technique used for collecting requirements.....................................................................................2
Task 2.....................................................................................................................................................3
Network Design.................................................................................................................................3
Network Design Justification.............................................................................................................3
Network Configuration......................................................................................................................4
Performance Metrics.......................................................................................................................12
Conclusion...........................................................................................................................................12
Bibliography.........................................................................................................................................13

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Introduction
The report is prepared for a 24/7 call centre for the development of the network solution for
the organization such that the network device are available all the time and it is able to deliver the
data packet to the destination taking minimum time. For the development of the report a
requirement analysis is done on the needs for the development of the network framework. The
protocols that should be used for the configuration of the network is identified for the configuration
of the routers and the switches used for the development of the network solution. Different
techniques are used for gathering the requirement from the user such as brainstorming, using set of
questionnaires and arrangement of stakeholder meetings. The number of user and the floor plan of
the building of the call centre should be evaluated for the development of the network.
Task 1
Requirement Gathering
The main requirement of the organization is to develop a network solution for a 24/7 call
centre that requires different hardware and software for the development of the network. A
research has been done on the latest technology that can be applied in the network for the
development of the network infrastructure. The success of the network solution depends on the
quality of information gathered form the different sources. Questionnaires should be created and
distributed to the users for the identification of the requirement of the network solution. An
appropriate cabling plan should be used for interconnecting the different departments and
identification of the needs of the upgrades of the current network devices installed in different
location of the organization.
Technique used for collecting requirements
A quantitative and qualitative analysis should be used for the identification of the requirement
for the development of the network solution for the Call Centre. For gathering the requirement of
the network the data is gathered from the users, applications and the devices. Stakeholder meetings
should be arranged for the identification of the needs of the software and the hardware required for
the development of the network solution. The constraints identified from the existing network and
the expected growth of the network should be identified for creating an interoperability within the
existing network. The services that are needed for the development of the network infrastructure
should be identified for designing the architecture of the network. The existing network architecture
should also be analysed for incorporating it with the existing network. The components that are
needed to be identified are listed below:

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 Upgrades of the systems
 Migration from one technology to another
 Use of network protocol for upgrading the network infrastructure.
It is also important to identify the dependency of the user and constraint of the existing network
such as the change in the size and the scope of the network framework. The boundaries of the LAN
or WAN should also be defined. The number of users using the system and the list of application and
software installed in the system should be listed for the development of the network infrastructure
and dividing the network into smaller subnets for increasing the security of the network.
Task 2
Network Design
Figure 1: Network Solution for the Call Centre
Network Design Justification
The network is designed with 6 layer 3 switch for the management of the distribution of the
data packets in the network. In the management department two layer 2 switches are used for
connecting the hosts with the network. Two routers are installed in two different floors of the
building and cisco 2811 series router is used for each of the floors. Cisco 7960 VOIP phone is used for
the call center for making call using the internet and reach the client. The Phones are connected
with the laptops for reducing the cabling cost and increasing the accessibility of the system. The
network is divided into different subnet following the floor plan of the organization and reduce the
generation of broadcast messages for increasing the efficiency of the network solution. The current

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network designed for the call centre can meet the requirement of the next five years and more
devices can be added in the network for handling the growth of the organization in future. For
increasing the security of the network the SYSlog server is used and it monitors the current flow of
the data traffic in the network.
Network Configuration
CORE A switch

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CORE B Switch

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DISTRIBITION 1A
DISTRIBITION 2A

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DISTRIBITION 3A

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DATACENTER

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Switch 2
Switch 3

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Performance Metrics
The dial peer configuration should be used for routing the source of the call to the
destination location and defining the different characteristics between the routers connected in the
network. The network is divided into eight subnets for different location of the building of the call
centre. The default VLAN 1 is used for the management of the network device connected in the
network. The VLAN 10 is used for the server network and the servers are configured as Syslog server
for increasing the security of the network and it is able to generate alert, notification and alarms to
the network administrator. Global, DNS and HTTP server is also connected with the VLAN 10. VLAN
20 and VLAN 30 is created for the first floor of the building and used for monitoring the current
activity of the network. For the call centre operation the VLAN 64 and VLAN 65 is used for the data
and voice respectively. A DHCP server is used for providing the IP address to the VLAN such that the
manual input of static IP address is not needed for the PCs. For another Floor of the building VLAN
68 and VLAN 69 is created for the data and the voice. The creation of the different VLAN for the data
and the voice helps in improvement of the performance of the network and eliminates the risk of
collision of the data and the voice packets in the network causing a delay in the voice transmission.
The core switch is connected with redundant link for connecting the different blocks such that if one
link fails the data can be transferred using the redundant link. The responsive ness of the system
should be high because the data are transmitted using different channels. For the identification of
the performance of the network different network analysis tools such as PRTG network monitor can
be used for the identification of the data flow and packet loss or jitter in the network.
Conclusion
From the above report it can be concluded that with the identification of the requirement of the call
centre the errors in the network solution can be eliminated and it helps in development of an
effective network solution for the company. The IP addressing plan and the configuration of the
layer 3 switches and the router are done according to the identified requirement of the call centre.
For increasing the availability of the network device and getting maximum network uptime. The
availability of the network is the main requirement of the company and scopes are there for the
expansion of the current network solution. The creation of separate VLAN for the data and the voice
helps in dividing the network into different communication channel and reduce the packet loss,
jitter, congestion and collision in the data packet of the network. A prototype of the network is
designed in packet tracer and the screenshot of the configuration commands are attached with the
report.

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Bibliography
[1]. Ali, M.N.B., Hossain, M.E. and Parvez, M.M. Design and Implementation of a Secure Campus
Network. International Journal of Emerging Technology and Advanced Engineering, 5(7),
pp.370-374., 2015
[2]. Boccardi, F., Andrews, J., Elshaer, H., Dohler, M., Parkvall, S., Popovski, P. and Singh, S. Why
to decouple the uplink and downlink in cellular networks and how to do it. IEEE
Communications Magazine, 54(3), pp.110-117., 2016.
[3]. Colmenar, J.M., Greistorfer, P., Martí, R. and Duarte, A. Advanced greedy randomized
adaptive search procedure for the obnoxious p-median problem. European Journal of
Operational Research, 252(2), pp.432-442., 2016.
[4]. Ding, Z., Zhong, C., Ng, D.W.K., Peng, M., Suraweera, H.A., Schober, R. and Poor, H.V.
Application of smart antenna technologies in simultaneous wireless information and power
transfer. IEEE Communications Magazine, 53(4), pp.86-93., 2015.
[5]. Huh, J.H., Otgonchimeg, S. and Seo, K. Advanced metering infrastructure design and test bed
experiment using intelligent agents: focusing on the PLC network base technology for Smart
Grid system. The Journal of Supercomputing, 72(5), pp.1862-1877., 2016.
[6]. Loukriz, A., Haddadi, M. and Messalti, S. Simulation and experimental design of a new
advanced variable step size Incremental Conductance MPPT algorithm for PV systems. ISA
transactions, 62, pp.30-38., 2016.
[7]. Marchetti, M., Pierazzi, F., Colajanni, M. and Guido, A. Analysis of high volumes of network
traffic for Advanced Persistent Threat detection. Computer Networks, 109, pp.127-141.,
2016.
[8]. McCormack, K.P. and Johnson, W.C. Supply chain networks and business process orientation:
advanced strategies and best practices. CRC Press., 2016.
[9]. Simmons, J.M. Optical network design and planning. Springer., 2014.
[10]. Xenakis, D., Passas, N., Merakos, L. and Verikoukis, C. ANDSF-Assisted vertical
handover decisions in the IEEE 802.11/LTE-Advanced network. Computer Networks, 106,
pp.91-108., 2016