高技术通讯（英文版）2006，Vol.12Issue(1)：1-5,5.
SPHERE: a scalable multicast framework in overlay networks
SPHERE: a scalable multicast framework in overlay networks
摘要
Abstract
This paper presents Sphere, a scalable multicast framework in overlay network. Sphere is a highly efficient, self-organizing and robust multicast protocol overlayed on the Internet. The main contributions of this paper are twofold. First, Sphere organizes the control topology of overlay network in two directions: horizontal and vertical. The horizontal meshes are used to locate and organize hosts in tracks, and the vertical meshes are used to manage the data paths between tracks. Second, Sphere balances stress and stretch of the overlay network by assigning hosts into different tracks and clusters. This structure distributes stress on the multicast trees uniformly, and meantime makes path stretch as small as possible.Simulations results show that Sphere can support multicast with large group size and has good performance on organizing meshes and building data delivery trees.关键词
multicast/overlay networks/group management/self-organizationKey words
multicast/overlay networks/group management/self-organization分类
信息技术与安全科学引用本文复制引用
..SPHERE: a scalable multicast framework in overlay networks[J].高技术通讯（英文版）,2006,12(1):1-5,5.基金项目
Supported by the High Technology Research and Development Programme of China. （）
