Tsinghua University Large Scale SIP Platform Based on P2P Tsinghua University Cansheng Fan Jan 2009.

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Tsinghua University Large Scale SIP Platform Based on P2P Tsinghua University Cansheng Fan Jan 2009

Tsinghua UniversityJan. 2009Introduction Session Initiation Protocol Mobility – Terminal mobility – Personal mobility – Service mobility – Session mobility Application Layer Physical Layer Session Layer Network Layer Datalink Layer SIP Transport Layer

Tsinghua UniversityJan Background and motivation SIP6: An IPv6 based large scale SIP platform with more than users from various universities in China CNGI08: Pre-commercial large scale communication applications based on wireless broadband

Tsinghua UniversityJan Current Applications Voice(both PC and PDA), IM, PC2Phone, Video, SIP P2P, File sharing

Tsinghua UniversityJan SIP P2P P2P video using SIP platform

Tsinghua UniversityJan Registration Users More than 14,000 users from different universities in China No advertisement yet

Tsinghua UniversityJan Usage graphs

Tsinghua UniversityJan Current system structure 6+3: – 6(Signal Control Layer): 3 SIP servers+3 location servers – 3: Authentication server, user registration server, NOC server DNS SRV for load balance and full backup of DB for high availability

Tsinghua UniversityJan SIP Management System System Topology

Tsinghua UniversityJan SIP Management System Failure alarm and self-healing

Tsinghua UniversityJan Huge data for analysis More than 919,984 call records from April 2007 More than 3,197,145 SIP message records from April 2007 More than 3,012,132 online records from September 2008 More than 5G to explore Call pattern analysis, online behavior analysis, server load balance analysis, resource usage analysis…

Tsinghua UniversityJan. 2009CNGI08 Mobile voice: including PC2PC and PC2Phone applications which cost more than 13,000 RMB each month Mobile video: a SIP P2P based video distribution system. Good for maintenance and copyright protection Message push: valuable messages will be pushed to the SIP clients to save users' time. s, subscribed BBS posts, campus announcements and etc. will be included.

Tsinghua UniversityJan. 2009Structure Mobile VoiceMobile VideoMessage Push Management System Resource System SIP Support Platform

Tsinghua UniversityJan. 2009Structure Core node layer: for central authentication and management Super node layer: SIP proxies as access network for end users

Tsinghua UniversityJan. 2009Structure P2P SIP overlay network: SIP proxy server as super nodes An efficient hash function for efficient message routing

Tsinghua University

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