I have a fairly robust network setup at home, but am a little unclear on internal Mac networking. My LAN consists of two bridged AirPort Extremes and a cable modem. Everything is connected using Cat 5e inside the walls, and Cat 6 patch elsewhere. Additionally, I have a Netgear Gigabit switch in my office.
I use my MacBook Pro throughout the house on Wifi. When I bring it in the office, I connect an Ethernet cable for 1000BASE-T awesomeness. Elsewhere on the network I have backups and a media server.
When I connect the MBP to Ethernet, will the Mac software determine the fastest route for local network traffic? I can see by the activity lights on the switch that I have a full Gigabit Ethernet connection, but since Wifi is still on, I'm not clear which network mode is being utilized.