1. MP2P –IP Multicast and P2P Technology Huo Yusong

2. Outline Background 1 Our Solution : MP2P 2 Analysis & testing results 3 Futrue work 4 Conclusion 5

3. Background Peer-to-peer (P2P) Technology Recent surveys show that P2P applications generate a high percentage of traffic on the Internet The explosion of P2P traffic creates new challenges to the network loads

4. Background (Cont.) Multicast Technology Algorithm: RPM CBT Routing protocols: DVMRP MOSPF PIM-DM/SM AMRoute AMRIS

5. Background (Cont.) Characteristic in wireless environment Limited-bandwidth: CDMA GSM/GPRS WLAN Limited-abilities at terminal equipments Routing informations and network topology change fast A good condition for multicast

6. MP2P MP2P implements: – IP multicast – P2P unicast – saves bandwidth by : transmitting file pieces from one peer to another through multicast in the same multicast area unicast P2P in different area, rather than everyone getting from one central server.

7. Transport Model

8. MP2P Principle source/agent receiver A receiver B 12345 1 2 3 4 5

9. MP2P Principle (Cont.) source A receiver A receiver B 1 2 3 4 5 453 135

10. MP2P Principle (Cont.) source receiver A receiver B 12345 P2P request 1,2 135 35 P2P request 2,4 4

11. MP2P Principle (Cont.) source receiver A receiver B 12345 135 354 1 4

12. MP2P Principle (Cont.) source receiver A receiver B 12345 1345 1345 P2P request 2 2

13. MP2P Principle (Cont.) source receiver A receiver B 12345 1345 1345 2 2 P2P request 2 2

14. Architecture of MP2P

15. Transport Model

16. Election of Proxy The proxy is the peer who has the plenteous CPU and bandwidth resource and can provide service to other peers in the steady, long-term status ; – Designated Proxy – Backup Proxy –Capability CPU resource bandwidth available the number of the file resource on-line time statistically

17. Analysis MP2P –Pure P2P mode –Mixed mode –The bandwidth consumption in Formula (2) is not linear increasing as it increases in Formula (1).

18. Testing results Performance in Pure P2P modePerformance of in mixed mode

19. Results in ethernet User list

20. Results in ethernet (Cont.) Task list

21. Results in ethernet (Cont.) Monitor

22. Results in ethernet (Cont.) Unicast record

23. Futrue work Optimizing the MP2P system More application including audio/video real-time stream, etc. Adaptive network switching technique

24. Conclusion MP2P System –which makes use of IP Multicast and peer-to- peer technology. –Several contributions had achieved : saves the bandwidth and lowers the system loads by employing IP multicast; Provide reliable multicast by employing P2P; Provide cross-area multicast by employing P2P.

25. http://ipv6.bupt.edu.cn