thomas silverston, olivier fourmaux nossdav ‘07 presenter: chen chih-ming@nslab

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