Packet Switching
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This document defines packet switching and discusses several packet switching technologies. It begins by defining packet switching as dividing messages into packets that can follow different routes to the destination, where they are then recompiled. It then discusses three main packet switching technologies: TCP/IP, X.25, and Frame Relay. It provides details on each technology and notes that Frame Relay was implemented in Malaysia and replaced X.25 for connections within wide area networks.
Packet Switching
- 2. Learning Outcomes By the end of this topic, you should be able to: • Define the term packet switching • Identify the packet switching technologies • Distinguish between TCP/IP, X.25 and Frame Relay technologies • Value the frame relay technology implementation in Malaysia
- 3. Packet Switching • Packet Switching refers to technologies in which messages are divided into packets before they are sent. • Each packet is then transmitted individually and can even follow different routes to its destination • Once all the packets forming a message arrive at the destination, they are recompiled into their original form
- 4. Packet Switching • TCP/IP • X.25 • Frame Relay
- 5. Packet Switching: TCP/IP TCP (Transmission Control Protocol) IP (Internet Protocol) TCP/IP
- 6. Packet Switching: X.25 • X.25 is an open standard WAN technology for packet-switching networks. • It is one of the earliest international standards for packet switching. • It defines layers 1, 2, and 3 in the OSI Reference Model
- 9. Packet Switching: Frame Relay • Frame Relay is a packet-switching protocol for connecting devices on a WAN. • It operates at layer two or the Data Link layer in the OSI model. • It is used in applications such as LAN interconnection, public and private wide area networks and gradually replacing X.25
- 10. Packet Switching: Frame Relay
- 11. Packet Switching: Frame Relay
- 12. Packet Switching: Frame Relay
- 13. Packet Switching: Frame Relay
- 14. Packet Switching: Frame Relay Corporate Information Superhighway (COINS)
- 15. Packet Switching: Frame Relay Corporate Information Superhighway (COINS)
- 16. References • Malaysia coins – http://www.dreamstime.com/stock-photo- malaysia-coins-macro-image3253450 • Telekom Malaysia – http://www.kltowerjump.com/sponsors.html • Maybank – http://www.huntlogo.com/maybank-logo/
- 17. The End