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Session Announcement Protocol (SAP)

You can also enable or disable SAP network announcements. Session Announcement Protocol (SAP) is a protocol for advertising multicast or unicast session information. SAP periodically multicasts session description information on an industry standard multicast address and port. When received by remote participants, these announcements can be used to generate playlists and facilitate the viewing of streams by eliminating the need for user configuration. For example, they may be used to automatically create program listings to allow streams to easily be located, selected and viewed.

You can also specify the address and port to transmit SAP announcements on a stream-by-stream basis. This is useful if you do not want to multicast SAP announcements on the standard IP addresses and ports (as defined in RFC 2974). 

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