可扩展的IPv4 over IPv6跨域组播方案  

Scalable IPv4 over IPv6 inter-domain multicast scheme

作　　者：陈越[1] 谭鹏许[1] 邵婧[1] 

机构地区：[1]解放军信息工程大学电子技术学院,河南郑州450004

出　　处：《计算机工程与设计》2011年第5期1527-1530,共4页Computer Engineering and Design

基　　金：国家科技支撑计划基金项目(2008BAH37B03)

摘　　要：为满足IPv4网络跨越IPv6骨干网部署组播应用的需求,提出并设计了IPv4overIPv6跨域软线组播方案——DOTPAN(每接入网一棵动态组播树方案)。该方案采用隧道和映射技术,使进入IPv6骨干网入口相同的多个IPv4组播组或者IPv4特定源组播频道在IPv6骨干网仅共享一棵按需建立的动态组播树,且其分枝仅延伸到有组播接收者的IPv4域,实现了IPv6骨干网上的组播路由状态聚合与流量冗余的折中。与相关方案的分析与比较结果表明,DOTPAN具有良好的可扩展性,适用于大规模跨域组播部署。To meet the needs ofmulticast application deployment for IPv4 network over IPv6 backbone, a new software-based IPv4 over IPv6 inter-domain multicast scheme, dynamic one tree per access network （DOTPAN）, is put forward and designed. By using the tunneling and mapping techniques, the multicast groups or channels with the same entrance to the IPv6 backbone share a single shared multicast tree in the backbone, which is dynamically formed when needed and whose branches only extend to the IPv4 domains having the multicast receivers. So DOTPAN balances the number ofmulticast routing states and the traffic redundancy in IPv6 backbone. The analyses and comparisons of related schemes show that DOTPAN has favorable scalability and is suitable for large scale inter-domain multicast deployment.

关 键 词：IPV4 IPV6 组播 隧道 可扩展性 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]