Collision Domains Explained | Layer 2 Switching Fundamentals скачать в хорошем качестве

Collision Domains Explained | Layer 2 Switching Fundamentals

👍 Support the channel with Super Thanks 🌐 Visit https://www.telecomtech.io for blog posts, networking tips, and to sign up for the newsletter. 📚 Full networking courses, labs, quizzes, PDFs, and more! 🟥 SUBSCRIBE: https://shorturl.at/TTJxx In this video, we take a deep yet simple look at collision domains in Ethernet networks. To truly understand what a collision domain is, we start with legacy network devices like hubs, explaining how collisions occur when multiple devices share the same physical medium. From there, we break down how CSMA/CD (Carrier Sense Multiple Access with Collision Detection) works, why it was necessary in early Ethernet networks, and how collisions are detected on copper cables. You’ll then see how switches fundamentally change the game by using MAC address tables to segment collision domains and eliminate collisions altogether in modern, full-duplex Ethernet networks. We also discuss: The difference between hubs and switches Why full-duplex Ethernet removes the need for CSMA/CD When collisions can still occur (half-duplex links and cabling issues) How to identify collision-related problems using the Cisco show interfaces command Why collisions are a copper Ethernet concept and do not apply to fiber A brief comparison with Wi-Fi, which uses CSMA/CA instead of CSMA/CD This video is part of a Layer 2 Switching series and is ideal for students, junior network engineers, and anyone preparing for networking certifications or looking to strengthen their foundational networking knowledge. ☑️ Chapter list: ============================================ 00:00 Introduction 00:16 Understanding Hubs 01:21 Problems with Collision Domains 01:42 What is a collision? 03:04 Understanding CSMA/CD 03:41 CSMA/CD Rules 05:13 Switches segment collision domains 09:27 Collisions on the Wireless Medium 10:33 Summary 🟩 Related Videos and Links: ===============================================    • Fundamentals of Switching and Layer 2 Oper...   🟦 About ============================================== Welcome to telecomTech, where telecom and networking technologies... are simply explained! I’m Lazarus, a telecom professional with over 25 years of experience in network design, architecture, and telecom technologies. Over my career, I’ve led major projects, trained professionals, and helped countless individuals earn certifications and advance their careers. My goal is to make networking and telecom concepts clear, practical, and engaging—the way I wish they were taught when I started learning! Whether you’re a student, a professional growing your skills, or you're preparing for certification exams such as Cisco, telecomTech is here to guide you. Every video is crafted to help you solve real-world challenges with confidence and curiosity. Join me as we explore telecom and networking as a lifelong passion, not just as a job. Let’s make this journey of growth and discovery together! #Networking #Ethernet #Switching #ComputerNetworking #Cisco #networking #telecomtech