Patent ID: 8774076

Claim:
A method, comprising: joining by a first Edge Device a multicast group via a multicast router, wherein the first Edge device is in a first site of a network comprising a first local area network (LAN) and the multicast router is in a second site of the network comprising a second LAN with the first LAN and second LAN being different LANs; ascertaining by the first Edge Device an existence of both a first multicast source for the multicast group in the first site of the network and a second multicast source for the multicast group in the second site of the network; selecting by the first Edge Device the first multicast source as a multicast source from which to receive multicast data for the multicast group; and notifying by the first Edge Device the second multicast source in the second site of the network that the first Edge Device is not interested in receiving multicast data for the multicast group from the second multicast source.