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Teardown Message with RTSP protocol

Dear all,

I am facing strange problem while serving RTSP audio / video files. If I want to see a clip which is more than 120 secs, servers are getting teardown message succefully. If I watch a clip longer than 120 secs, servers are not getting teardown request from client.

1. Success Teardown

A) This is observed in the case of clip less than 1-2 minutes.

B) The RTSP handshake is success. The client & proxy have negotiated the

- UDP port for RTP and RTCP.

C) Streaming starts successfully. The clip is played complete.

D) The client receive the RTP packets successfully from VIP.

E) The client send the RTCP packets successfully to VIP.

F) At the end of the clip the handset send the RTSP teardown to VIP on

port 554.

G) The proxy receives the Teardown and closes the session with both

client and Streaming server.

H) The proxy sends the Teardown ok to the client.

2. Failed Teardown.

A) This is observed in the case of clip more than 2 minutes.

B) The RTSP handshake is success. The client & proxy have negotiated the

- UDP port for RTP and RTCP.

C) Streaming starts successfully. The clip is played complete.

D) The client receive the RTP packets successfully from VIP.

E) The client send the RTCP packets successfully to VIP.

F) At the end of the clip the handset send the RTSP teardown to VIP on

port 554.

G) The proxy does not receives the Teardown. It waits for Teardown to

closes the session with both client and Streaming server.

H) Eventually after the RTP timeout at streaming server, the streaming

server closes the session with the error message 504 - Gateway Timeout.

Can someone enlighten me in this regard.

Thanks in advance.

nayan

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