1. Thomas Silverston, Olivier Fourmaux NOSSDAV ‘07 Presenter: Chen Chih-Ming@NSLAB

2. Outline  Introduction  Goal  Experiment Setup  Experiment Result  Conclusion  Comment

3. Outline  Introduction  Goal  Experiment Setup  Experiment Result  Conclusion  Comment

4. Hail to P2P  File sharing  VoIP  IPTV PPLive PPStream SOPCast TVAnts

5. Related Work  Large-scale live streaming can be supported by P2P  Implement P2P IPTV system and give network statistics  Study an existing P2P IPTV application by traces  patterns have not the same characteristics whether broadcasted content exhibits a live interest for users or not

6. Outline  Introduction  Goal  Experiment Setup  Experiment Result  Conclusion  Comment

7. Goal  For a special popular event  Infer global behavior of IPTV

8. Outline  Introduction  Goal  Related Work  Experiment Setup  Experiment Result  Conclusion  Comment

9. SETUP  Two FIFA 2006 world cup event PPLive, SOPCast in 德 vs. 阿根廷 PPStream, TVAnts in 義 vs. 烏  Tcpdump  Payload driven session time

10. Experiment Setup Diagram Campus Network tcptump Network

11. Outline  Introduction  Goal  Experiment Setup  Experiment Result  Conclusion  Comment

12. Throughput of TVAnts

13. Average packet size

14. Packet Summary PPLivePPStreamSOPCastTVAnts Duration(s)13321123751219813358 Size(MB)6339412154753992 Download(%) TCP UDP 14.11 14.9 0.02 20.50 0 16.13 0.23 15.90 24.76 14.71 10.05 Upload(%) TCP UDP 85.89 85.81 0.08 79.50 0 83.87 3.89 79.98 75.24 61.67 13.57 Video TCP UDP, a few TCPTCP, UDP Signaling TCP, a few UDPTCPUDP, a few TCPTCP, UDP Signaling overhead ratio 4.1%13.6%19.3%10.2%

15. Video download policies

16. Peers neighborhood

17. Video peers lifetime for TVAnts

18. Outline  Introduction  Goal  Experiment Setup  Experiment Result  Conclusion  Comment

19. Conclusion  Different traffic pattern  Different download policy  Different peer neighborhood  Different average peer lifetime  The same peer lifetime distribution The CCDF follow Weibull distribution

20. Outline  Introduction  Goal  Experiment Setup  Experiment Result  Conclusion  Comment

21. Comment  Easy idea  Hard work  But beautiful result Weibull distribution  Model P2P IPTV in other work