Multicast in a trill network

摘要

One embodiment of the present invention provides a switch. A switch includes a storage and a multicast management mechanism. The storage is configured to store an entry indicating a multicast group membership learned at a remote switch. The multicast management mechanism is coupled to the storage and is configured to suppress flooding of packets destined for the multicast group.

主权项

1. A switch, comprising:
one or more ports; a storage configured to store a first multicast database, wherein a respective entry in the first multicast database includes membership information of a multicast group learned at a remote switch, and wherein the entry is associated with an identifier of the remote switch; and a multicast management module configured to suppress flooding via the one or more ports a packet destined for a multicast group in response to identifying the membership information of the multicast group in an entry in the first multicast database; wherein the switch and the remote switch are member switches of a network of interconnected switches, and wherein a media access control (MAC) address learned via one of the one or more ports is shared with the remote switch.