Measuring P2P IPTV Systems
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Transcript of Measuring P2P IPTV Systems
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MEASURING P2P IPTV SYSTEMS
Thomas Silverston, Olivier FourmauxNOSSDAV ‘07
Presenter: Chen Chih-Ming@NSLAB
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Outline Introduction Goal Experiment Setup Experiment Result Conclusion Comment
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Outline Introduction Goal Experiment Setup Experiment Result Conclusion Comment
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Hail to P2P File sharing VoIP IPTV
PPLivePPStreamSOPCastTVAnts
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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
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Outline Introduction Goal Experiment Setup Experiment Result Conclusion Comment
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Goal For a special popular event Infer global behavior of IPTV
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Outline Introduction Goal Related Work Experiment Setup Experiment Result Conclusion Comment
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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
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Experiment Setup Diagram
Campus Network
tcptump
tcptump
Network
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Outline Introduction Goal Experiment Setup Experiment Result Conclusion Comment
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Throughput of TVAnts
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Average packet size
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Packet SummaryPPLive PPStream SOPCast TVAnts
Duration(s) 13321 12375 12198 13358Size(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
85.8985.81
0.08
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%
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Video download policies
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Peers neighborhood
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Video peers lifetime for TVAnts
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Outline Introduction Goal Experiment Setup Experiment Result Conclusion Comment
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Conclusion Different traffic pattern Different download policy Different peer neighborhood Different average peer lifetime The same peer lifetime distribution
The CCDF follow Weibull distribution
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Outline Introduction Goal Experiment Setup Experiment Result Conclusion Comment
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Comment Easy idea Hard work But beautiful result
Weibull distribution Model P2P IPTV in other work