Multicasting delivers a single stream from a source such as a streaming media server to a group of receivers or a multicast group. Rather than send separate streams to each user request, as in unicast, multicast streams serve many end users from one stream. This one-to-many or many-to-many communication technology efficiently disseminates information from a source to a set of receivers and reduces overall bandwidth requirements (see "The Wizardry of Multicast").
Sean Doherty is a technology editor and lawyer based at our Syracuse University Real-World Labs®. A former project manager and IT engineer at Syracuse University, he helped develop centrally supported applications and storage systems. Write to him at [email protected].
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