MESSAGE TRANSMISSION METHOD, DEVICE AND SYSTEM FOR IMPLEMENTING MULTICAST SERVICES

摘要

A packet transmission method for implementing multicast services is provided. The method includes the following steps. A packet carrying a current network location identifier of multicast data labeled by an access side is received from the access side (S301) Based on preset identifier mapping information, the current network location identifier of the multicast data labeled by the access side in the packet is converted into a current network location identifier of multicast data labeled by a service provider (SP) side that maps the current network location identifier of the multicast data labeled by the access side in the identifier mapping information (S302). The identifier-converted packet is sent to SP side communication equipment corresponding to the current network location identifier of the multicast data labeled by the SP side (S303). A packet transmission device and a packet transmission system for implementing multicast services and another packet transmission method for implementing multicast services are further provided.