Abstract: A system and method for implementing controlled multicast, wherein comprises Ethernet switch 1, multicast router 2, as well as portal server 3 and AAA server 4 that connect with the multicast router, where Ethernet switch 1 connects with each hosts of user in a downlink, in an uplink connects with multicast router 5 and implements multicast switch of layer 2; portal server 3 is used as an interface for access authentication of the user, AAA server 4 is used to store configuration of user privilege for joining in a multicast group; multicast router 2 connects with multicast router 5 of other systems in the uplink, and cooperates together with AAA server 4 to completes privilege authentication for the user when he joins in the multicast group, distributes a control command according to results of the authentication, and controls forwarding of the multicast made by Ethernet switch 1.

Abstract: A system and method for implementing controlled multicast, wherein comprises Ethernet switch 1, multicast router 2, as well as portal server 3 and AAA server 4 that connect with the multicast router, where Ethernet switch 1 connects with each hosts of user in a downlink, in an uplink connects with multicast router 5 and implements multicast switch of layer 2; portal server 3 is used as an interface for access authentication of the user, AAA server 4 is used to store configuration of user privilege for joining in a multicast group; multicast router 2 connects with multicast router 5 of other systems in the uplink, and cooperates together with AAA server 4 to completes privilege authentication for the user when he joins in the multicast group, distributes a control command according to results of the authentication, and controls forwarding of the multicast made by Ethernet switch 1.