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Skype 网络协议分析

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Skype 网络协议分析An Analysis of the Skype Peer-to-Peer Internet Telephony Protocol
Salman A. Baset and Henning Schulzrinne
Department of Computer Science Columbia University, New York NY 10027 {salman,hgs}@cs.columbia.edu September 15, 2004

ABSTRACT
Skype is a peer-to-peer VoIP client developed by KaZaa in 2003. Skype claims that it can work almost seamlessly across NATs and firewalls and has better voice quality than the MSN and Yahoo IM applications. It encrypts calls end-to-end, and stores user information in a decentralized fashion. Skype also supports instant messaging and conferencing. This report analyzes key Skype functions such as login, NAT and firewall traversal, call establishment, media transfer, codecs, and conferencing under three different network setups. Analysis is performed by careful s……
标签:Skype网络协议分析
Skype 网络协议分析
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