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Configuring Source Specific Multicast (SSM)

Source Specific Multicast (SSM) optimizes PIM-SM by simplifying the many-to-many model (servers-to-receivers). Since most multicast applications distribute content to a group in one direction, SSM uses a one-to-many model that only uses a subset of the PIM-SM features. This model is more efficient and puts less of a load on multicast routing devices.

For more information about SSM concepts and terminology, refer to Configuring IP Multicast Routing Protocols.

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