Gigabit NIC dedicated to file sharing

Hello,

I have 2 Fast Ethernet NICs and 1 Gigabit NIC in my server. I have things like DHCP services, VPN, and remote desktop setup to use the 2 fast ethernet NICs. When clients are accessing my SMB shares I would like the server to use the gigabit port for transfers, to ensure the fastest speed of course. How can I setup and ensure that the server uses that NIC. For example, when setting up DHCP server as a role you can chose which network port it binds to. I would like to do the same with the file sharing services but chose gigabit.

All of the 3 ports in total go back to the same switch, which is gigabit, but of course only the gigabit port will run at that speed. Any insight is appreciated.

Thanks,

Christian Tucci