RTSP timeout feature doesn't work
During a RTSP connection, if the SETUP reply contains a "timeout" parameter inside the "Session" header, the client should resend in a periodic way an RTSP command (most of time, an OPTIONS or PLAY command) before this timeout. Else, the server could close the connection due to a lack of activity.
See http://www.ietf.org/rfc/rfc2326.txt, section "12.37 Session".
VLC RTSP client is not compliant with this point.