We know that modern Ethernet is full-duplex. At the same time we can send Or receive the signal. Suppose I consider one Lan where multiple hosts are connected by different ports of switch.
Let's take host A host connected switch port N via baseband link. Consider A starts sending signal to switch and at the same time switch also starts sending signal to A.
My question is both host A and switch uses entire bandwidth of that baseband link at the same time or uses portion of the bandwidth of this baseband link?