How Multicast Works
Multicast sources sdata packets to multicast groups. There can be any number of clients within a group. In fact, multicast group membership changes constantly. Multicast systems use Class D Internet Protocol (IP) address space. The four high order bits of the first octet of Class D IP address space are 1110. This gives the Class D IP address space a range of 224.0.0.0–239.255.255.255.
There are three modes of communication within any multicast system.
Host to many receivers
Many groups to one host
Many sources to many multicast groups
The first two are the most common uses for multicast at this point in time. However, with the recent push for online meetings and virtual offices, the third communication type is becoming more ...
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