> Does the requirement of the RTCP (keepalive) change at all when using RTP > over RTSP?
No. > Certainly, applications get notifications (from the TCP stack) when their > peer “goes away” (stops responding to TCP keepalives). Yes, in principle. However, this might take a long time (possibly a very long time), depending upon the particular TCP implementation, especially if the server is not currently sending data (e.g., it had received a RTSP "PAUSE" command beforehand). > Are you aware of any specifications (based on alternate configuration) that > remove the obligation of the RTCP (or noop message) keepalives? No, and note that RTCP "RR" packets can useful in their own right (for statistics); not just as a 'keepalive'. Ross Finlayson Live Networks, Inc. http://www.live555.com/
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