Thomas Silverston, Olivier Fourmaux NOSSDAV ‘07 Presenter: Chen

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 PPLive PPStream SOPCast TVAnts

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 Network

Outline  Introduction  Goal  Experiment Setup  Experiment Result  Conclusion  Comment

Throughput of TVAnts

Average packet size

Packet Summary PPLivePPStreamSOPCastTVAnts Duration(s) Size(MB) Download(%) TCP UDP Upload(%) TCP UDP Video TCP UDP, a few TCPTCP, UDP Signaling TCP, a few UDPTCPUDP, a few TCPTCP, 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