[emluper]

The biggest issue is that currently AVB is not a "network" protocol to the extent that we're used to. It's set to connect devices directly with each other, not to broadcast to multiple devices that can "pick off' part of the stream that the user wants. I would watch Robert Scovill's The Lab series on YouTube. The latest should be up sometime today and it's specifically about redundant systems. I know that he uses an S3L as part of his system, you might be able to glean some information that will help your current situation.