thomas silverston, olivier fourmaux nossdav ‘07 presenter: chen chih-ming@nslab
TRANSCRIPT
MEASURING P2P IPTV SYSTEMS
Thomas Silverston, Olivier Fourmaux
NOSSDAV ‘07
Presenter: Chen Chih-Ming@NSLAB
Outline
Introduction Goal Experiment Setup Experiment Result Conclusion Comment
Outline
Introduction Goal Experiment Setup Experiment Result Conclusion Comment
Hail to P2P
File sharing VoIP IPTV
PPLivePPStreamSOPCastTVAnts
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
Outline
Introduction Goal Experiment Setup Experiment Result Conclusion Comment
Goal
For a special popular event Infer global behavior of IPTV
Outline
Introduction Goal Related Work Experiment Setup Experiment Result Conclusion Comment
SETUP
Two FIFA 2006 world cup eventPPLive, SOPCast in 德 vs. 阿根廷 PPStream, TVAnts in 義 vs. 烏
Tcpdump Payload driven session time
Experiment Setup Diagram
Campus Network
tcptump
tcptump
Network
Outline
Introduction Goal Experiment Setup Experiment Result Conclusion Comment
Throughput of TVAnts
Average packet size
Packet SummaryPPLive PPStream SOPCast TVAnts
Duration(s) 13321 12375 12198 13358
Size(MB) 6339 4121 5475 3992
Download(%)TCPUDP
14.1114.90.02
20.5020.50
0
16.130.23
15.90
24.7614.7110.05
Upload(%)TCPUDP
85.8985.810.08
79.5079.50
0
83.873.89
79.98
75.2461.6713.57
Video TCP TCP UDP, a few TCP TCP, UDP
Signaling TCP, a few UDP TCP UDP, a few TCP TCP, UDP
Signaling overhead ratio
4.1% 13.6% 19.3% 10.2%
Video download policies
Peers neighborhood
Video peers lifetime for TVAnts
Outline
Introduction Goal Experiment Setup Experiment Result Conclusion Comment
Conclusion
Different traffic pattern Different download policy Different peer neighborhood Different average peer lifetime The same peer lifetime distribution
The CCDF follow Weibull distribution
Outline
Introduction Goal Experiment Setup Experiment Result Conclusion Comment
Comment
Easy idea Hard work But beautiful result
Weibull distribution Model P2P IPTV in other work