Hi
Quick question about multicasting, that I hope someone can help me with...unfortunately, I've never had any real life experience with it, so am having a bit of difficulty visualising it.
Say I have a multicast group set up for 224.2.155.145. The source is Host A, and the receivers are Hosts B, C, and D.
Does Host A send out three packets to the multicast IP address, knowing in advance that 3 hosts are subsribed to it, or does it only send out one packet that is somehow shared by the 3 hosts?
Thanks in advance.