I have a fairly old router that doesn’t support gigabit. I also have a network switch that does support gigabit. If I connect two devices directly to the switch, then connect the switch up to the router, will the connection between the two devices support gigabit? If I’m understanding correctly the router would just act as DHCP server and give the two devices a local IP address, but the actual connection between them wouldn’t go through the router at all.
I have a 10gb switch and a gigabit router. Traffic between the two computers attached to the switch that actually support 10gbe is at 10gb, traffic from them to the one that is 2.5gb is 2.5gb, and traffic to the internet is about 55mb, because that is all my internet does.