It is about the LAN and WAN area network

1. WOLKITE UNIVERSITY CLUSTER CAMPUS
LOCALAREA NETWORK
.

2. Introduction
Wolkite University is one of the 3rd generation University in Ethiopia.
 WKU Cluster Campus is the name of the one branch that is situated in Wolkite Town.
Due to a number of ongoing issues The WKU cluster campus is interested in switching to a new,
full-featured LAN network design to replace the current one.
For the WKU Cluster Campus, we will generally construct a secure, scalable, high performance,
fault tolerance and reliable network design.
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3. Statement of Probem
Weak security mechanism.
It lacks a data center of its own.
The network has no redundancy.
No a smart room, video conference , a CCTV camera, and no WiFi accessibility.
Casecade network topology is present.
There is no backup for the main campus.
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4. General Objective of the project
The general Objective of this project is to design and implement secure, scalable, high
performance, fault tolerance and reliable LAN network design for WKU cluster campus.
Specific Objectives
 Implement redundancy to ensure reliability.
 Ensure network security.
 Enable Local services to make them locally available.
 Providing CCTV camera, video conference and others.
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5. Scope of the Project
To Enhancing security mechanism and using appropriate security policy.
Ensure reliability by implementing redundancy.
To Optimize Wired LAN and wireless LAN access.
To Design network topology that meets current business and technical requirements
Limitation of the project
Future constructions are not taken into account
Only considers the WKU cluster campus LAN.
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6. Developmental Methodology
 The methods We use when dealing with network design or network layout is prepare, plan,
design, implement, operate and optimize (PPDIOO) is an overall deployment method.
 We gathered data using a variety of techniques like observation, interview, document analaysis
and questionnaire.
To create our projects, we use hardware and software standards.
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7. Introduction of Existing System
The 60 Mb fiber connection to the Wolkite university cluster campus is now provided by
Ethiopia Telecom.
The network as a whole has Two class B IP addresses.
One router is directly connected to the distribution switch, which is linked to the access switch
and the VPN that linked the cluster campus to the main campus.
In contrast to how the distribution switch is set up with DHCP, VLAN, and routing
capabilities, the router is configured using NAT and ACL.
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8. Cont...
There are Seven VLANs that have been created on the distribution switch.
Both the router and the distribution switch have dynamic routing set up(EGRP).
They uses a fiber optic connection to connect the distribution switch and access switch.
There are 12 access switches with port number 48.
WKU cluster campus is connected to the main campus via a VPN, which enables the cluster
campus to access the services from the main campus
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9. cont...
However, for this connection to function, an internet connection between the two campuses is
necessary.
These services can be accessed locally at the main campus even without an internet connection,
however this is not possible in the cluster campus.
As a remedy, a direct fiber cable connection between the main campus and the cluster campus
was envisioned, but this was not allowed by Ethiopian telecom regulations.
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10. Existing Network Design of WKU Cluster Campus
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11. Cont...
The WKU Cluster Campus presently has a two-tier architecture.
This type of architecture has some advantages, such as simplicity and ease of
management, there are also some disadvantages :
- Performance - Security
- Limited fault tolerance - Scalability
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12. Cont...
A two-tier architecture is a network design in which client devices communicate directly with
a server.
There is no redundancy in this network, and the distribution switch manages most network
operations.
 If there is a problem and there is an internet outage, there won't be any backup systems, so it
will be a total outage.
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13. The proposed network
The network flow is planned to begin with the firewall, move via the router, core layer,
distribution layer, and goes with the access layer.
The proposed network will enhance the existing network's performance, scalability, availability,
and manageability, and redundancy issues.
We adopt a three-tier network architecture in our proposed network design.
In order to address the problems with the two-tier architecture, such as scalability, flexibility,
security, performance, and ease of maintenance, we employ a three-tier network architecture.
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14. Functional requirements
 Connectivity: enables communication and data exchange between networked devices, which
is essential for the network to perform its intended function.
 Sizing the network: Our suggested network will evaluate the organization's present and
future needs in order to determine the proper network capacity..
Following a standard approach: Governing organizations and industry experts have created
standards, procedures, and best practices that our planned network will abide by.
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15. Non-Functional Requirements
 Availability: Our new network architecture is accessible through and provides redundant, 24
hour, consistent, and dependable performance.
 Performance: The network shall be capable of providing a minimum end-to-end throughput of
60Mb/s between end devices.
 Scalability: Our suggested network infrastructure is expandable to accommodate new user.
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16. Cont...
 Reliability: The network should pertain to all the situations so that it can be sustain in any
error conditions.
 Manageability: The suggested network makes it possible to control, watch over, and maintain
the network.
 Security: Our suggested network can be secured by employing a firewall as the primary
security measure.
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17. Architectural Design For Building
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18. Network Design
The network topology we used are the three-tier network architecture.
The three layers are the access layer, distribution layer, and core layer.
The reason we used these hierarchical model is due to its scalability, redundancy, performance,
security, manageability, maintainability, etc
The Core layer and Distribution Layer’s are placed in the data center and the Access layer is
within the building to provide services to the end-user in the campus.
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19. Logical Network Design
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20. Data Center
The Data center contains internal WKU cluster campus servers.
These servers include file, DHCP, proxy server,Mail server and database and other servers
that are necessary for the network solutions.
The Data Center should have to be secured since it has so many important instruments are
there.
 These security may be in two forms either physical and logical security.
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21. IP and VLAN plan
 We use class B ip addresses for the network we have proposed.
 Subnetting was implemented to decrease ip waste.
 We use the host number to assign the IP address.
 The network will have a total of 14 vlans, each with its own distinct ip address.
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22. Protocols
EIGRP: we use a Cisco proprietary routing protocol that combines the features of both
distance-vector and link-state routing protocols.
STP : It ensures network stability and reliability by preventing loops and providing
redundancy.
Without STP, loops can occur in the network topology, which can cause broadcast storms,
network congestion, and even network downtime.
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23. Cont...
HSRP: In our proposed network design, HSRP is commonly used to improve network
availability and prevent service disruptions in the event of a router failure.
Redundant network designs let us meet requirements for network availability by duplicating
network links and inter connectivity devices.
VTP: is a protocol used in Cisco network devices for managing VLANs.
This allows network administrators to configure VLANs on a single switch and have those
VLAN configurations propagated to other switches in the network.
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24. Wireless Design
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25. Network Management Strategy and Software
 We will use Zabbix Network monitoring tools to monitor the performance and health of
the network and use Cisco Prime Infrastructure for Network configuration management.
 We use Cisco Identity Services Engine (ISE) for network secuirty management and Nagios
XI for network performance management.
The purpose of our network security policy is to protect the WKU cluster campus network
from unauthorized access, malicious activity, and other security threats.
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26. .
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