Abstract

This thesis explores how managed switches can improve network performance and security in PLC-based industrial systems. Using simulations in GNS3 and Cisco Packet Tracer, and packet analysis via Wireshark, the study compares unmanaged and managed switch configurations. Redundancy protocols, particularly STP and RSTP, are evaluated under failure scenarios. Results show that RSTP offers faster recovery times, making it more suitable for time-sensitive environments. Additionally, managed switch features like VLANs, port security, and MAC filtering significantly reduce vulnerabilities and improve network segmentation. The findings highlight the importance of incorporating both cybersecurity and redundancy in industrial network design as systems move toward Industry 4.0 and optimize industrial automation systems using various network simulation tools including Cisco Packet Tracer, GNS3, and Wireshark.

Advisor

Bhushan Dharmadhikari

Committee Member

Xuanhui Wu

Committee Member

Nancy He

Date of Degree

2025

Language

english

Document Type

Thesis

Degree

Master of Science (MS)

Program of Study

Computer and Electrical Engineering

Department

Electrical and Computer Engineering and Technology

College

Science, Engineering and Technology

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