the example I gave was a simplified (though true) situation of a system local bus it's common to have a dedicated trading network completely parallel and isola

the example I gave was a simplified (though true) situation of a system local bus it's common to have a dedicated trading network completely parallel and isolated from the main DC network for each upstream connection, of which there are dozens and these are (at least) double redundant through the entire network, typically using redundant packet arbitration to near guarantee zero drops over a session Google's network is super-dynamic and flexible, but slow and likely over-contended ours is the exact opposite