Scenario

Alliance Health is a technology$-$enabled solutions company that optimizes the revenue cycle of the US healthcare industry where its global delivery center is located in Colombo. The company is planning to expand their business operations with their latest branch at Matara and wants it to be one of the state$-$of$-$the$-$art companies in Matara with the latest facilities.

Assume you have been appointed as the new network analyst of Alliance Health to plan, design and restructure the existing network. Prepare a network architectural design and implement it with your suggestions and recommendations to meet the company requirements.

The floor plan of the head office in Colombo is as follows:

Floor $1$:

$$ Reception area

$$ Sales & Marketing Department $(10$ employees$)$

$$ Customer Services Area $$ with Wi$-$Fi facilities

Floor $2$:

$$ Administration Department $(30$ Employees$)$

$$ HR Department $(20$ employees$)$

$$ Accounting & Finance Department $(15$ employees$)$

$$ Audit Department $(5$ employees$)$

$$ Business Development Department $(5$ employees$)$

Floor $3$

$$ Video conferencing room

$$ IT Department $(60$ employees$)$

$$ The Server Room

The floor plan of the branch in Matara is as follows:

Floor $1$:

$$ Reception area

$$ Customer Services Area$$ with Wi$-$Fi facilities

Floor $2$:

$$ Administration Department $(10$ Employees$)$

$$ HR Department $(7$ employees$)$

$$ Accounting & Finance Department $(8$ employees$)$

$$ IT Department $(50$ employees$)$

Following requirements are given by the Management.

$$ All the departments must be separated with unique subnet.

$$ The conferencing room of the head office and Customer Services Areas of each branch are to be equipped with Wi$-$Fi connections.

$$ Connectivity between two branches $($Head Office and Matara$)$ would allow the intra branch connectivity between departments. $($Use of VPN is not compulsory$)$

$$ The necessary IP address classes and ranges must be decided by the network designer and should be used for all the departments except the server room.

$$ Number of servers required for the Server room need to be decided by the Network designer and should be assigned with $10\mathrm{.}254\mathrm{.}10\mathrm{.}0/24$ subnet. $($Uses static IPs$)$

$$ Sales and Marketing Team also needs to access Network resources using WIFI connectivity.

$($Note: Clearly state your assumptions. You are allowed to design the network according to your assumptions, but main requirements should not be violated$)$

Network Design Plan for Alliance Health Matara Branch

This design plan outlines the recommended approach to meet the company's requirements for departmental separation, Wi$-$Fi connectivity, inter$-$branch communication, and efficient network utilization.

$1.$ Network Topology: Hybrid Mesh

This approach combines elements of bus, star, and mesh topologies to ensure fault tolerance, scalability, and efficient communication.

$1\mathrm{.}2$ Features

Star Topology: Centralized switch hub for each department.

Mesh Topology: Redundant connections between critical departments.

Bus Topology: Linear connections for individual departmental networks.

$2.$ Hardware and Devices

$2\mathrm{.}1$ Switches

Central Switch Hub: Cisco Catalyst $9500$ Series for central connectivity.

Departmental Switches: Cisco Catalyst $2960$X for individual departments.

$2\mathrm{.}2$ Servers

File and Application Server: Dell PowerEdge R$640$ for centralized data storage and applications.

Wi$-$Fi Controller: Cisco $3504$ Wireless Controller for managing Wi$-$Fi connections.

$2\mathrm{.}3$ Network Devices

Routers: Cisco ISR $4000$ Series for inter$-$branch connectivity.

Access Points: Cisco Aironet $2800$ Series for Wi$-$Fi connectivity.

$2\mathrm{.}4$ Security Devices

Firewall: Cisco ASA $5500-$X Series for network security.

Intrusion Prevention System $($IPS$)$: Snort for real$-$time threat detection.

$3.$ IP Addressing and Subnetting Scheme

Departmental Subnets: Each department assigned a unique subnet $($e$.$g$.,192\mathrm{.}168.$X$\mathrm{.}0/24).$

Server Room: $10\mathrm{.}254\mathrm{.}10\mathrm{.}0/24$ subnet for servers $($static IPs$).$

Inter$-$Branch Connectivity: Use of appropriate IP classes for seamless communication.

$4.$ IEEE Ethernet Standards: $802\mathrm{.}3$ for wired connections, $802\mathrm{.}11$ac for wireless connectivity.

$5.$ Network Protocol Suites: TCP$/$IP$,$ OSI Model, Routing Protocols: RIP and OSPF, STP$.$

$($Certain departments dont have the no$.$ of users mentioned, assume it according to relevancy, but make sure to state the assumptions clearly.

BASED ON THE ABOVE SCENARIO AND WRITTEN NETWORK DESIGN PLAN DRAW A NETWORK FOR MATARA BRANCH WHICHSHOWS THE CONNECTIVITY. INCLUDE THE NETWORK DEVICES IN THE DIAGRAM TOO.

PLEASE PROVIDE ME WITH HAND$-$DRAWN OR DIGITALLY DRAWN IMAGE, PLEASE DONT GIVE IMAGES THAT ARE DRAWN USING SYMBOLS OR COPIED FROM CHATGPT OR BARD OR ANY OTHER AI TOOL.