Aethra Vega X7 Use And Installation Manual page 68

"Address". This parameter contains the IP address for the stream. If this field contains a
unicast IP address, it will be automatically overwritten by the IP address of the system that has
requested to view the stream from an HTML page supplied by an internal web server. By
pressing the "Active" key on the configuration page, you can activate streaming: the system will
start the transmission of audio and video packets to the selected IP address.
If the IP address is multicast, streaming will be sent to a multicast group identified directly by the
IP address, enabling viewing by a large number of users (theoretically unlimited).
"Port". This parameter contains the number of the UDP port where audio packets are to be
sent. Since the streaming content is RTP, data are sent to four different ports: one port for
audio, one port for video and two ports for the RTP information corresponding to both streams.
Therefore, starting with an audio port number, it is implied that the audio data will be sent to this
port number, video data will be sent to the audio port number plus two, and the odd port
numbers before and after the video port will be used for RTP data. For example, if the audio
port number is 554, the port number for video will be 556, and the port numbers for RTP data
on both streams will be 555 and 557.
"TTL/Hops". This parameter contains the value for the Time to Live associated with multicast
packets.
c) Activate
Streaming activation/deactivation request.
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