AVTPDU common control header - when this header is used

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OpenAvnu - an Avnu sponsored repository for Time Sensitive Network (TSN and AVB) technology

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AVTPDU common control header - when this header is used #743

Open deeps2017 opened 6 years ago

deeps2017 commented 6 years ago

when is AVTPDU common control header used ? i understand AVTPDU common stream header is used to send the avtp audio/video data,stream id, timestamp but when is common control header used, please provide the usecase if possible

Please provide the details

thanks in advance

Shrikant-M commented 6 years ago

From IEEE 1722-2016 document, control header is used for AVDECC and MAAP protocol

One usecase that I can explain is making use AVDECC Connection Management Protocol(ACMP). AVDECC Listener sends CONNECT_TX_COMMAND to the AVDECC Talker for setting up a connection. This packet consists of subtype=0xFC, message_type(control_data)=0 , control_data_length = 44 and other ACMPDU fields.

This is as per my understanding. Please feel free to correct me if there are any mistakes