Method for supporting source-specific multicast forwarding over ethernet and device thereof

A router, comprising:

• an Ethernet multicast message encapsulating module adapted to obtain SS-VLAN information corresponding to SIP in a multicast IP message upon Ethernet encapsulation of a SSM IP message forwarded by a router and to perform Ethernet encapsulation of the SSM IP message in accordance with the SS-VLAN information.

An Ethernet switching device, comprising:

• a multicast forwarding port list configuring module adapted to obtain SS-VLAN information corresponding to an SIP in an IGMP message when the Ethernet switching device configures a multicast forwarding table entry, and to configure a multicast port forwarding list in the multicast forwarding table entry of Ethernet in accordance with the SS-VLAN information;
• and
• an Ethernet multicast message forwarding module adapted to send an Ethernet multicast message to a corresponding port in accordance with the multicast forwarding port list configured by the multicast forwarding port list configuring module when the Ethernet switching device receives the Ethernet multicast message forwarded by a router.