| 摘要 |
An embodiment of the present invention relates to the technical field of information transmission and disclosed are a method and device for establishing a multicast channel for improving a transmission efficiency of an MPLS multicast channel transmitting multicast data. The method for establishing the multicast channel comprises: acquiring path information corresponding to the multicast channel and a label operation of each node in the multicast channel; each node comprises a root node, an intermediate node and a leaf node; the path information comprises identifiers of each node, and outbound interface information of the root node and the intermediate node; the label operation refers to an operation type of an operation performed on the multicast data; allocating a global label to the multicast channel; transmitting a label mapping table to each node according to identifiers of each node so as to enable each node to acquire a forwarding table item which can be identified by a forwarding engine thereof according to the received label mapping table; the forwarding table is used for transmitting the multicast channel, and an outbound label comprised in the forwarding table item of the root node and intermediate node is the global label. |
