ITU-T Workshop on Multimedia in NGN

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1 ITU-T Workshop on P2P Telecom Solutions Ning Zong Huawei Technologies Co., Ltd. Union

2 Telecomm Service Evolution Browsers Web Pages Any-Access Media service HTTP HTTP VoIP imode WAP RTP RTSP Text-based Applications Multimedia Applications Union 2

3 C/S Service Model Users In A Users In C Network Contents In E Users In B Users In D Concurrent requests bring server high burden. High device investment are required to deploy more servers. Union 3

4 What s P2P Clients are organized in a peer-to-peer manner, i.e., they share information with each other, thus reduce the burden of server. Union 4

5 P2P Service Model Users In A Users In C Network Contents In E Users In B Users In D Content sharing among peers reduces server s burden. Union 5

6 Internet P2P (1/2) BitTorrent Fully make use of Internet resources such as PC capabilities, network bandwidth, etc. Do not have carriers sensorship NOT manageable. Do the best to provide service CANNOT guarantee QoS. All customers are same CANNOT enable CoS. Union 6

Internet P2P (2/2) SKYPE SKYPE High High customer customer volume volume Low Low carrier carrier revenue revenue Voice 技术 Marketing Network 宽带 Resource Stream Media Full Full of of

7 Internet P2P (2/2) SKYPE SKYPE High High customer customer volume volume Low Low carrier carrier revenue revenue Voice 技术 Marketing Network 宽带 Resource Stream Media Full Full of of nonmanageablmanageable non- P2P P2P flows flows PPLIVE PPLIVE Internet P2P based services reduce the carriers ARPU. Carriers networks are full of non-manageable P2P flows. Customer volume increases, carrier s revenue decrease. Union 7

8 Telecomm P2P Req. (1/3) Service Requirements Multimedia services bring servers high burden in conventional C/S service model. P2P service model effectively reduce the server s burden by sharing contents among clients. P2P helps reducing the investment of deploying multimedia services. Union 8

9 Telecomm P2P Req. (2/3) Carrier Requirements Internet P2P consumes large amount of carrier s resources, but without carrier s sensorship. Carrier can attract more subscribers by deploying and operating their own P2P services. Telecomm P2P help protecting the carrier s investment and increasing carrier s ARPU. Union 9

10 Telecomm P2P Req. (3/3) Customer Requirements Internet P2P only does the best to provide services, i.e., no QoS guarantee, no CoS. Carrier can provide effective end-to-end QoS and CoS by operating their own P2P services. Customers require telecomm level P2P solutions with improved user experience. Union 10

Server Conventional SIP Terminal P2P overlay makes current SIP network more

11 Telecomm P2P Solutions (1/3) Client SIP UA behind NAT G/W PSTN Mobile SIP Terminal SIP UA on Overlay P2P Overlay Network SIP Proxy / Registrar STUN/TURN Server Conventional SIP Terminal P2P overlay makes current SIP network more flexible, more scalable, more robust and reduces the cost of deploying network. Union 11

12 Telecomm P2P Solutions (2/3) P2P Overlay on WAN P2P Overlay on MAN P2P overlay reduces the burden of content server in IPTV content delivery system, and with the local/inter-domain structure, reduces the cross-domain flows. Union 12

13 Telecomm P2P Solutions (3/3) Separation of P2P function/service Common P2P platform supports various services. P2P platform implements content routing, content transportation, etc. Services don t care how P2P platform works. Separation of P2P control/data plane P2P control plane implements content routing, peer administration, etc. P2P data plane implements content transportation, traffic management, etc. Union 13

14 Telecomm P2P Standardization IETF - P2PSIP P2P technique is utilized to manage SIP procedure based on distributed SIP functional entities. Issues such as protols between peers, security and NAT traversal are considered. DSL Forum - ARCH P2P issues are addressed in WT-144 as one of general requirements for access network. Union 14

15 Thank You Tel: Web: Union 15

P2PSIP, ICE, and RTCWeb

P2PSIP, ICE, and RTCWeb T-110.5150 Applications and Services in Internet October 11 th, 2011 Jouni Mäenpää NomadicLab, Ericsson Research AGENDA Peer-to-Peer SIP (P2PSIP) Interactive Connectivity Establishment