MAC Address Explained | 48-Bit MAC, OUI, Unicast, Multicast & Broadcast | CCNA English

In this video, we’ll understand MAC Address (Media Access Control Address) in simple English— one of the most important concepts of the Data Link Layer (Layer 2) and CCNA. You’ll learn how MAC addresses identify devices inside a LAN and how switches use MAC addresses to forward Ethernet frames. 📚 What You’ll Learn 🔹 What is a MAC Address? 🔹 Full Form: Media Access Control 🔹 MAC Address = 48 bits / 6 bytes 🔹 MAC Address hexadecimal format 🔹 OUI (Organizationally Unique Identifier) 🔹 Device Identifier 🔹 MAC Address structure: 24-bit OUI + 24-bit Device ID 🔹 Unicast MAC Address 🔹 Multicast MAC Address 🔹 Broadcast MAC Address 🔹 I/G Bit and its importance 🔹 MAC Address properties 🔹 MAC Address vs IP Address 🔹 How switches use MAC addresses 🔹 CAM/MAC Address Table 🔹 MAC Address in Ethernet Frame delivery 🔹 Real-world MAC Address example 🔹 Important CCNA exam & interview points 🧠 Quick Revision MAC Address → Layer 2 → 48 Bits → 6 Bytes Example: 00:1A:2B:3C:4D:5E First 24 bits → OUI / Manufacturer Last 24 bits → Device Identifier 🎯 Perfect For: CCNA Beginners CCNA Aspirants Network Engineer Freshers IT/NOC Engineers Network Support Engineers Networking Interview Preparation 👉 Learn Networking → Practice with Packet Tracer → Prepare for Interviews → Build Your Career 👍 Like | 📤 Share | 🔔 Subscribe for more CCNA & Network Engineering tutorials. #️⃣ Hashtags #MACAddress #MACAddressExplained #CCNA #CCNA2026 #CCNAHinglish #CiscoNetworking #Networking #ComputerNetworking #DataLinkLayer #Layer2 #MACAddressing #Unicast #Multicast #Broadcast #Ethernet #Switching #CAMTable #NetworkEngineer #NetworkEngineering #CCNAInterview #NetworkingInterview #PacketTracer #NetworkingBasics