The invention discloses a multicast tree layer two Ethernet network construction method and network node device, wherein the multicast tree construction method includes: according to the network topology information, calculated by each node in the network is the root node of the broadcast tree; flooding mechanism for multicast source node and multicast multicast receiving node based on attribute; according to the multicast service attribute multicast source node and multicast receiving nodes, with each node in the network is the root node in the broadcast tree, to find a multicast source node is the root node of the broadcast tree, and based on the searched broadcast tree, multicast tree construction to multicast receiving node from a multicast source node. By adopting the invention, a fast convergent multicast tree can be established in any two layer Ethernet network of any topology.
【技术实现步骤摘要】
【技术保护点】
１．一种二层以太网络的组播树构建方法，其特征在于，该方法包括：根据网络拓扑信息，计算以网络中各节点为根节点的广播树；基于泛洪机制获得组播源节点和组播接收节点的组播业务属性；根据组播源节点和组播接收节点的组播业务属性，在所述以网络中各节点为根节点的广播树中，查找以组播源节点为根节点的广播树，并基于查找到的广播树，构建从组播源节点到组播接收节点的组播树。
【技术特征摘要】
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