General AVB FAQ

2   What is AVB?

Audio Video Bridging is a term for a collection of IEEE Standards for time sensitive networking which facilitates the transport of high performance audio and video on a LAN.

For details of the standards involved, see the AVB Developer FAQ.

3   What are the minimum requirements for an AVB switch?

An AVB Switch is required to support:

  • IEEE Std. 802.1Q-2011 FQTSS and SRP.
  • IEEE Std. 802.1AS-2011 gPTP on each AVB enabled ethernet port

AVnu Compliance is important for a switch to have in order to ensure correct operation of your AVB network.

5   How many AVB streams of audio can you have on an entire network?

The maximum number of streams on an AVB network depends on the streams properties.

  • If the streams properties are not packable, there can be 318 streams on a network - each with 1 or more channels of audio.
  • If each talker device provides streams with stream properties that are packable, there can be 318 talkers on a network each with as many streams as they can fit on their links.
  • If all the stream properties across the entire network are packable, there can be much more than 318 talkers on a network.

6   Are all the standards involved in AVB complete?

Yes, with the completion of IEEE Std 1722.1-2013 in August, 2013 all of the standards required for a full complete end user experience are completed, ratified, published, and available for download or purchase.


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