1. DIS Final Project Proposal Content Express R92725010 許坤進 R92725021 余世傑 R92725035 洪啓仁

2. 2003/11/172 Outline  Overview of project  Technological infrastructure  Implementation phase  Project timeline

3. 2003/11/173 Outline  Overview of project  Motivation and goals  Technological infrastructure  Implementation phase  Project timeline

4. 2003/11/174 Motivation and Goals  Network and Information Explosion Era  Content Providers(ex: CNN.com)  Text articles and pictures  Real-time application bloom  Streaming video / audio  VOD(video on demand)

5. 2003/11/175 Motivation and Goals (con’t)  Bandwidth build rate v.s. network traffic flow rate  Extending service provided makes server bear heavy load  Server is the bottleneck Content Deliver Internetworking (CDI) Content Deliver Network (CDN)

6. 2003/11/176 Motivation and Goals (con’t)  Server Election  Location Transparency  Access Transparency  Failure Handling  Mutual Exclusion  Load Balancing  Security  Scability

7. 2003/11/177 Outline  Overview of project  Technological infrastructure  Description & diagram  Rationale/justification  Implementation phase  Project timeline

8. 2003/11/178 Topology Diagram - Original

9. 2003/11/179 Topology Diagram - Ours

10. 2003/11/1710 Rationale / Justification  Fault tolerance  Link failure  Server crash handling  Diminish backbone traffic  Load balancing  Remote Method Invocation (RMI)  Master Election  Mutual Exclusion  Security Concern

11. 2003/11/1711 Outline  Overview of project  Technological infrastructure  Implementation phase  System requirement  Implementation  Testing  Project timeline

12. 2003/11/1712 System Requirement  Platform  Windows  Development tools  J2SE – j2sdk1.4.2  Remote Method Invocation (RMI)  Java Media Framework (JMF)  Java Database Connectivity(JDBC)  Database  MySQL

13. 2003/11/1713 System Working Flow Chart Start Leader Server Working Flow Leader Server Working Flow Peer Servers Working Flow Peer Servers Working Flow General Initialization Leader Election

14. 2003/11/1714 Leader Server Initialization Wait For Request Find The Most Appropriate Peer Server Find The Most Appropriate Peer Server Forward The Request Server List Event Log DB Log Event

15. 2003/11/1715 Peer Server Initialization Wait For Request Update Content Update Content Send Content To Client Send Content To Client Content DB Event Log DB Log Event

16. 2003/11/1716 Testing  Link failure  System crash  Performance test

17. 2003/11/1717 Scenario

18. 2003/11/1718 Scenario

19. 2003/11/1719 Outline  Overview of project  Technological infrastructure  Implementation phase  Project timeline

20. 2003/11/1720 Project Timeline

21. The End~ Thanks for your attention!