Campus Area Network Design of B4G

Running Head: CAMPUS AREA NETWORK DESIGN
Campus Area Network Design of B4G
Name of the student:
Name of the university:
Author note:

1CAMPUS AREA NETWORK DESIGN
Table of Contents
Introduction......................................................................................................................................2
Task 1...............................................................................................................................................2
Analysis of Network....................................................................................................................2
Shortcomings of the current network..........................................................................................3
Campus network architecture that will focus on redundancy, security, convergence and high
availability...................................................................................................................................4
Network considerations for redundancy, security and scalability...........................................4
Task 2...............................................................................................................................................5
End-to-end VLAN vs Local VLAN............................................................................................6
Pros and cons of End-to-end VLANs......................................................................................6
Pros and cons of Local VLANs...............................................................................................6
Layer 2 redundancy and high availability technologies..............................................................7
Redundant default gateway technology.......................................................................................8
Task 3...............................................................................................................................................9
Threat mitigation against network failure....................................................................................9
Threat mitigation against security...............................................................................................9
Threat mitigation against malwares...........................................................................................10
Conclusion.....................................................................................................................................11
Reference.......................................................................................................................................13
Appendix........................................................................................................................................16

2CAMPUS AREA NETWORK DESIGN
Introduction:
The report will focus on network design of Beyond 4G Pty. Ltd (B4G) that develops
devices and applications used in wireless communications. The company has developed a
number of software technologies that resulted in the increase of the company’s market value.
The company has two divisions, one in Silicon valley, California and the other in New Delhi,
India. However, it is planning to expand business in Sydney, Australia and Beijing, China. The
operations that will be carried out in these countries are sales and marketing. Therefore, new IT
infrastructure is required to be implemented that to carry out further business. The features that
should be included in the infrastructure are high availability, scalability and security.
Additionally, the network should also have application intelligence, nonstop communication
between the two office of B4G, operational manageability, unified network services and
integrated security.
B4G campus area network is divided into two major divisions, one is Head Office and
other is R&D office. Network of the two offices are connected underground with the help of
high-speed fibre. The following paragraphs will analyse the network in details that will follow
identification of shortcomings of the network. A proper campus area network will be able to
manage faults, configuration, accounting, performance and security.
Task 1:
Analysis of Network:
The network topology that is used in Head office of B4G is extended star topology. The
data centre in Head office of B4G consists of three layers namely core layer,
distribution/aggregation layer and access layer. Internet service provider (ISP) and Wide Area

3CAMPUS AREA NETWORK DESIGN
Network provides internet services (Ahmed and Boutaba 2014). The core network of Head office
is connected to internet network through edge router and HQ_R router and a firewall. Firewall is
used to protect head office core network from malwares. The demilitarized zone switch is used to
connect web servers to unauthorized access such as internet. The components present in
distribution layer of the network are a central distribution switch DSW-IT-Infra that is connected
to another distribution switch DSW-R&D of R&D building through underground high-speed
fibre. The core layer consists of data centre switch DCentre-SW. Four web servers are connected
to data centre switch that stores various information and data of B4G. The Head office of B4G
consists of five floors therefore, access points in each floor are connected to distribution switch
DSW-IT-Infra through several switches. Distribution switches are used to bridge between core
layer and access layer. Various departments in Head office like management, sales, accounts, IT
and contractors can access the network by connecting to access points.
The distribution switches are regarded as layer 3 switch while switches in each floor of
head office is regarded as layer 2 switch. The distribution switches also supports complex policy
implementation like Quality of service (QoS) and packet filtering.
Shortcomings of the current network:
A good campus area network will have strong security, able to manage faults and
configuration and improve performance of the network. However, current head office network
do not have strong security checks.
 Malwares can attack network due to use of less firewall.
 Moreover, overlapping and interference of data packets might take place while routing
data packets.