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14.9.5 What Is An Ethernet Switch And How Does It Forward Data?

Explains how Ethernet switches learn device addresses and intelligently forward frames within a LAN. Introduces collision domains, broadcast domains, VLANs, and the role of switching in improving network performance, scalability, and reliability.

  1. Why Do Networks Need Switches?
  2. What Is an Ethernet Switch?
  3. How Does a Switch Know Where to Send a Frame?
  4. What Happens If the Destination Is Unknown?
  5. Why Are Switches Faster Than Hubs?
  6. What Is a Collision Domain?
  7. What Is a Broadcast Domain?
  8. What Is a VLAN?
  9. Why Does Modern Ethernet Use Full-Duplex Links?
  10. How Large Can Switched Networks Become?
  11. Are Switches Used Outside Local Area Networks?
  12. Why Are Ethernet Switches So Important?
  13. What Should You Remember?