Abstract: A method for implementing multicast based on a Multi-Service Transport Platform (MSTP), by establishing a Label Switch Path (LSP) multicast tree branch from a source network node based on the MSTP to multiple destination network nodes. According to the LSP multicast tree branch, data packets can be transmitted in multicast manner from the source network node to multiple destination network nodes, so that the procedure of network node's transmitting the data packets to multiple parts is simplified. In the present invention embodiment, LSP is utilized and multiple protocols label switch is supported, so that service protection function, flow management and flow engineering can be implemented and good QoS guarantee can be provided, which is suitable for large-scale network construction; while the multicast method is simplified and effective, operational and controllable management upon communication networks can be implemented to provide reliable QoS guarantee for network terminals.

Abstract: The present invention provides a Synchronous Digital Hierarchy (SDH) tributary module supporting multiple service processing, which includes an SDH tributary processing unit and at least two service processing units, the SDH tributary processing unit which is connected with each of the service processing units respectively multiplexing and demultiplexing different service signals in an SDH signal, and each of the service processing units which is directly connected with a corresponding local interface respectively mapping and unmapping corresponding service signals. The tributary module further includes a multiple service cross processing unit which is connected with each of the service processing units to implement interconnection among different services. The present invention can reduce the number of board and avoid using external network line or equipment, so as to reduce the cost of equipment, facilitate the maintenance of equipment and improve the reliability of equipment.