for VFX, disney/marvel/fox/sony required that the entire network be air gapped, with really stringent rules on USB, data tracking and interchange. All internet access had to be done via RDP with copy/paste blocked.

Had sony bothered to follow it's own rules it wouldn't have been hacked and had all its data leaked in 2014.....

But to answer the question, we had a shit tonne of networking, so as far as I'm aware it was just on the vanilla network. Might have been a seperate VLAN though.