measuring p2p iptv systems

MEASURING P2P IPTV SYSTEMS

Thomas Silverston, Olivier FourmauxNOSSDAV ‘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 event

PPLive, 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 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%

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