I've been reading about AVB, Dante, AES67 for a while, but didn't really understand what was going on until now. Here's what I discovered over the last few days:
AES67 is a standard for pushing hundreds of channels of totally pro audio over Ethernet. Dante is a commercial implementation, and AVB is a related implementation (which MOTU and Avid are deep into). I downloaded the Dante Via demo software, which lets you send audio between applications on a Mac. It's very cool. Pro Tools can use Dante as a playback engine.
You can also test Dante Virtual Soundcard. This lets you plug your Mac's ethernet cable directly into all of these zillion devices without using USB, Firewire, Thunderbolt or PCI cards! There's no doubt in my mind that all the young engineers will need to understand it in the years to come.