1. 1 On-Demand Multicast Routing and Its Applications

2. 2 On-demand Multimedia Applications Networks Video-on-demand Architecture –guaranteed QoS network environment –huge network bandwidth requirement

3. 3 Multicast Concept 10:00 10:03 10:05

4. 4 On-Demand Multicast Concept 10:00 10:03 10:05

5. 5 Construction Principle 10:05 10:00 34567 10:05 10:00 2, 1 7, 6, 5, 4, 3, 2, 1

6. 6 Example 10:02 10:00 10:05 10:07 2 min 5 min

7. 7 Applying to Campus VOD Campus Network

8. 8.. To Server Network R1R1 R2R2 Implementation

9. 9 Simulations Requests:1000 video #: 10 client buffer:100s arrival rate: 200s

10. 10 SM Player SM Player Join System Manager 1 2 1 2 When PCs, servers Boot up Server

11. 11 SM Player SM Server Connection Setup (1) 3 1 2 5 4 6 Manager

12. 12 SM Player Connection Setup (2) SM Player 1 2 3 4 5 6 Server Manager

13. 13 SM Player Connection Setup (3) SM Player 4 SM Server Manager 1 2 3

14. 14 SM Player Connection Setup (4) SM Player 1 3 SM 3 4 2 Broadcast message Server Manager s3 s1

15. 15 SM Player Connection Setup (5) SM Player SM 3 2 4 5 1 6 7 8 Server Manager s3 s1 “140.114.89.12”

16. 16 Collaborated with Local Server Root Server Server Player Local Server 1 2 3 4 5 6 78 Manager

17. 17 Server Player Fault Tolerance Server Player Server 3 1 2 To other server Root Server Manager