Types of Delivery
Unicast Webcasting
Unicast webcasting is a process in which every simultaneous viewer requires a unique connection to the server, even if all viewers are watching at the same time. The total server bandwidth for transmission is divided between them.
Multicast Webcasting
Multicast webcasting is a very efficient way to broadcast live video and audio data across intranets. It is similar to conventional broadcasting. A single stream can be transmitted across the networks and users attach to this single stream. Therefore in theory millions of clients could watch the same live content without consuming the extra bandwidth.