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13.9.5 Why Did Technologies Such AS X.25, Frame Relay, And ATM Disappear?

Explains how these important packet-switching technologies evolved, why they were successful in their time, and how they were gradually replaced by Ethernet, IP, and MPLS.

  1. Why Were These Technologies Developed?
  2. Why Was X.25 Introduced?
  3. Why Was X.25 So Successful?
  4. Why Did Frame Relay Replace X.25?
  5. What Advantages Did Frame Relay Offer?
  6. Why Was ATM Developed?
  7. What Made ATM Different?
  8. Why Didn't ATM Become the Universal Network?
  9. How Did the Internet Change Everything?
  10. Did These Technologies Really Disappear?
  11. What Replaced Them?
  12. What Lessons Can We Learn?
  13. Why Is It Still Worth Learning About These Technologies?
  14. What Should You Remember?