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ISP_1 responds by using the subscription port (UDP port 4200) with the peripheral ID and
start date/time to playback.
1.
The hybrid decoder sends a discovery request for the ISP that has recorded peripheral ID 5 at
the specified start date/time.
The hybrid decoder sends this request by using the Device Discovery port (UDP port 4111) to
the multicast address 235.1.1.1. This request includes the PeripheralID and StartDateTime
and a new target UDP port in the 4300–4500 range.
1.
ISP_2 responds to the hybrid decoder and a new TCP session is established between ISP_2
and the hybrid decoder. This session allows recorded video to flow between ISP_2 and the
hybrid decoder.
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ISP_2 responds with an announcement that video is recorded on this ISP.
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The hybrid decoder initiates a new TCP session with ISP_2 by using the Replay port (TCP
port 4116).
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Using TCP port 4116, recorded video packets flow between ISP_2 and the hybrid decoder.
1.
ISP_1 instructs the matrix switch to switch video input #16 to monitor #1. The monitor displays
the recorded video on monitor 1.
2.
When an operator presses a key sequence to stop the digital video, ISP_1 instructs the hybrid
decoder to terminate the session with ISP_2 and instructs the matrix switch to resume live
video from camera 5 to monitor 1.
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ISP_1 receives the request to terminate playback video via the data converter and notifies
the hybrid decoder by using the subscription port (UDP port 4200).
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The hybrid decoder tears down the TCP session (port 4116) with ISP_2.
Design Guide
II
Page-II
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