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Lecture TCP-IP protocol suite - Chapter 14: Multicasting and multicast routing protocols

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Upon completion you will be able to: Differentiate between a unicast, multicast, and broadcast message; know the many applications of multicasting; understand multicast link state routing and MOSPF; understand multicast link state routing and DVMRP; understand the Core-Based Tree Protocol; understand the Protocol Independent Multicast Protocols; understand the MBONE concept.

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Nội dung Text: Lecture TCP-IP protocol suite - Chapter 14: Multicasting and multicast routing protocols

  1. Chapter 14 Multicasting And Multicast Routing Protocols McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  2. CONTENTS •  INTRODUCTION •  MULTICAST ROUTING •  MULTICAST TREES •  MULTICAST ROUTING PROTOCOLS •  DVMRP •  MOSPF •  CBT •  PIM •  MBONE McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  3. 14.1 INTRODUCTION McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  4. Figure  14­1 Unicasting McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  5. In unicast routing, the router forwards the received packet through only one of its interfaces. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  6. Figure  14­2 Multicasting McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  7. In multicast routing, the router may forward the received packet through several of its interfaces. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  8. Figure  14­3:a Multicasting versus multiple unicasting McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  9. Figure  14­3:b Multicasting versus multiple unicasting McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  10. Emulation of multicasting through multiple unicasting is not efficient and may create long delays, particularly with a large group. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  11. 14.2 MULTICAST ROUTING McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  12. 14.3 MULTICAST TREES McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  13. In a source-based tree approach, the combination of source and group determines the tree. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  14. In the group-shared tree approach, the group determines the tree. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  15. 14.4 MULTICAST ROUTING PROTOCOLS McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  16. Figure  14­4 Multicast routing protocols McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  17. 14.5 DVMRP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  18. Figure  14­5 Reverse path forwarding McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  19. In reverse path forwarding (RPF), the router forwards only the packets that have traveled the shortest path from the source to the router; all other copies are discarded. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  20. RPF prevents the formation of loops. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
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