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| 对等网络中的路由器增强型NAT 方法 |
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张建伟1,2, 皮人杰3, 战晓苏4, 郭云飞1
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1.国家数字交换系统工程技术研究中心,河南 郑州 450002;2.郑州轻工业学院 计算机与通信工程学院,河南 郑州 450002;3.北京邮电大学 计算机科学与技术学院,北京 100876;4.北京邮电大学 电子工程学院,北京 100876
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| 摘要: |
| 对称NAT 的部署使得对等应用主机间的通信变得困难,需要大量的中转节点提供NAT 穿越服务.传统的中转节点是位于网络边缘的服务器节点,为了减少服务器中转引入的重复流量和路由器交换负载,提出了一种基于UDP 交换模型的路由器增强NAT 方法,可以通过增强单个路由器的功能来缓解网络带宽资源压力. |
| 关键词: 对等网络 路由器增强 网络地址转换 传输层交换 |
| DOI： |
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| 基金项目:Supported by the National Basic Research Program of China under Grant No.2007CB307102 (国家重点基础研究发展计划(973));the Science-Technology Supporting Project of the National ‘Eleventh Five-Year-Plan’ of China under Grant No.2006BAH02A03 (国家‘十一’五科技支撑计划项目); the National High-Tech Research and Development Plan of China under Grant No.2006AA01Z206 (国家高技术研究发展计划(863)) |
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| A Router Enhanced NAT Method for Peer-to-Peer Network |
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ZHANG Jian-Wei,PI Ren-Jie,ZHAN Xiao-Su,GUO Yun-Fei
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| Abstract: |
| The deployment of symmetric NAT makes the communication between hosts in a peer-to-peer application very difficult, which needs many relay node to provide NAT traversal service. Traditional relay nodes are all server hosts lie in the edge of network. To reduce the duplicate traffic and excess router load caused by server relaying, a UDP switch based router enhanced NAT method is proposed in this paper, which can resolve the bottleneck of network bandwidth by enhance router function independently. |
| Key words: peer-to-peer network router enhence network address translation transport layer switch |
