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Data Interfaces M6100 Broadcast Satellite Modulator
11.6.6.2 RTP
The Real-time Transport Protocol is used to send MPEG Transport Stream packets from a source
(encoder) to the modulator over an IP network. This protocol is based on UDP but it uses extra
header information such as sequence numbers and timestamps. This is inserted to deal with
packets that arrive out of order and to store the payload information. The RTP protocol is used when
networks become more complex.
The Real Time Protocol is defined in the standard RFC3550.
When sending TS over IP, the TS packets must be packed into IP packets. The packing of TS
packets into one IP packet is restricted to a maximum of seven TS packets. This is displayed in the
following figure.
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