Session Announcement Protocol
The Session Announcement Protocol
) is a protocol
for broadcasting multicast
A SAP listening application can listen to the well-known SAP multicast address and construct a guide of all advertised multicast sessions. SAP was published by the IETF as RFC 2974.
SAP typically uses session description protocol (SDP) as the format of the session descriptions, and the multicast sessions typically use Real-time Transport Protocol (RTP).