In theory (I have not successfully tried it yet), you can bind two ethernet interfaces and make them act as one (sharing/balancing the load) in linux machines, (theoretically) doubling the speed.
I was discussing with a friend if this would be possible to do with switches.
Connecting two unmanaged switches (let's say, 10/100) with 4 cables, would give a theoretical link between switches of 40/400, or will they just use one of them and ignore the rest?
Do managed switches have an option to enable this kind of thing?
I wanted to try this but one of the two unmanaged switches I had broke down, and I don't have any managed switches to try this on.