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CCDP ARCH Quick Reference by Michael Watkins, Kevin Wallace

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Chapter 10. IP Multicast Design Considerations

IP multicast offers a more efficient use of network resources, as compared to unicast and multicast technologies, for certain applications (for example, streaming video out to multiple receivers in a network). This chapter reviews the fundamentals of IP multicast technology, provides design guidance, and discusses security considerations.

Fundamentals of IP Multicast

Consider a video stream that needs to be sent to multiple recipients in a company. One approach is to unicast the traffic. The source server sends a copy of every packet to every receiver, as illustrated in Figure 10-1. Obviously, this approach has serious scalability limitations.

Figure 10-1 Unicast

An alternative approach is to broadcast ...

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