| 摘要 |
A multicast routing device, a network system applying the same, and a packet transmission method are provided. In the system, the multicast routing device is used to provide more than one multicast group point and is connected to a terminal device. When receiving a group switch command, the terminal device imports the address of a currently connected first multicast group point and the address of a second multicast group point to be switched to form a composite multicast packet including the addresses of the two multicast group points and then transmits the composite multicast packet onto a local area network on which the terminal device is located. When receiving the composite multicast packet, the multicast routing device interrupts connection of the terminal device and the first multicast group point and establishes a connection between the terminal device and the second multicast group point.
|
