A P2P –Grid Model for Traversing NAT in SIP Communication
Session Initiation Protocol (SIP) standardized by IETF provides a way to establish the sessions between Internet telephony devices, but this protocol can’t work with Network Address Translator (NAT). Therefore how to make SIP NAT friendly becomes a worthy topic. This paper proposes an efficient approach P2P-Grid architecture model based ICE which uses Simple Traversal of User Datagram Protocol (STUN) and TURN synthetically at the beginning of Interactive Connectivity Establishment (ICE) process (establishing the multimedia sessions) the agents ignore their own NAT topologies. In the process of establishing sessions, agents explore the NAT topology by a request / response interaction, and a smart sorting algorithm is also used to find and select the optimal path for media streams to traverse NAT. The program was tested on Linux platform. The result shows that the media streams can traversal various NAT efficiently.
SIP NAT P2P ICE traverse
Qinghui Wang Lifeng Wei Danbin Liu
School of Information Engineering Shenyang Institute of Chemical Technology ShenYang, P.R.China
国际会议
2009 Ninth International Conference on Hybrid Intelligent Systems(第九届混合智能系统国际会议 HIS 2009)
沈阳
英文
1-4
2009-08-12（万方平台首次上网日期，不代表论文的发表时间）