TRANSMISSION TYPE

Unicast  Vs Multicast

 Multicast - is the delivery of a single stream or information to a group of destination host simultaneously in a single transmission from the source creating copies automatically in other network using Network Devices like routers for efficient bandwidth utilization.

For example Radio:

                As you want to listen Radio , you will tune to particular Radio frequency and you can listen it. It’s same in multicast, you can join the multicast group you will access the real time applications.

Multicast is majorly used in Real time applications like, Voice, Video, Stock Broking applications, etc.

Why Multicast:

–    Used when sending same data to multiple receivers

–      Better bandwidth utilization

–      Used when addresses of receivers unknown

–      Used when simultaneous delivery of information for a group of receivers is required

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ABSTRACTED FROM:-http://startnetworks.blogspot.com/2011/04/multicasting.html?showComment=1319958144045#c3518076683033751298