计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (20): 99-101.

• 网络、通信、安全 • 上一篇    下一篇

基于平衡树的应用层多播树构建算法

殷安生   

  1. 南京邮电大学 信息网络技术研究所,南京 210003
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-07-11 发布日期:2011-07-11

Algorithm on construction of ALM’s tree based on balanced tree

YIN Ansheng   

  1. Institute of Information Network Technology,Nanjing University of Posts & Telecommunications,Nanjing 210003,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-07-11 Published:2011-07-11

摘要: 应用层多播协议通过生成树向其组成员发送数据包,一个节点失效则会引起生成树的分裂,并导致下游成员节点无法接收数据包,这正体现了应用层多播系统的脆弱性。为提高应用层多播的健壮性,提出一种基于K叉平衡树结构的应用层多播树构建的改进方案。

关键词: 应用层多播, 稳定性, 平衡树

Abstract: The application layer multicast protocol sends packets to group members by the spanning tree.An end-host failure causes tree partitions and the downstream nodes cannot receive packets,which demonstrates the ALM system is intrinsically fragile.The paper proposes a new tree construction protocol which makes out degrees of intermediate nodes be balanced.

Key words: application layer multicast, stability, balanced tree