Application layer multicast service realizing method, terminal and system thereof
A technology for multicast services and implementation methods, which is applied in transmission systems, digital transmission systems, devices for branch offices to provide special services, etc., can solve problems affecting lower-layer links, high system overhead, free rides, etc., and increase data transmission rate , sufficient bandwidth resources, and enhanced relevance
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[0035] The present invention is realized based on the multicast network, and the multicast network is composed of many nodes, such as figure 1 shown. Nodes can generally be divided into two categories: root nodes and leaf nodes. figure 1 The node A shown is a root node, and other nodes are leaf nodes. The root node is generally the data source and the publisher of the data content, and is no longer connected to the upper node. A leaf node is a node connected under the root node or other leaf nodes. Such as figure 1As shown, node A is one layer, node B and node C are located in the same layer, nodes D, E, F and G are located in the same layer, and nodes H, I, J and K are located in the bottom layer, located in Nodes on the same layer and connected to the same parent node are sibling nodes. From another point of view, nodes can be divided into parent nodes and child nodes. Parent nodes and child nodes are the relationship between upper and lower nodes. A parent node can hav...
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