Hi, that depends on how you set up your NIC Team.  Different manufacturers offer different methods, but basically they are:

> Fault Tolerance (one NIC on standby) - no switch configuration required.

> Adaptive Load Balancing - no switch configuration required.

> Link Aggregation (Static or Dynamic, aka 802.3ad) - this DOES requires switch configuration.

Link Aggregation seems to be the most common setup, since it makes your Team appear as a single interface, increases speed, and provides fault tolerance.   What type of switch do you have?  You'll want to look for LACP (Link Aggregate Control Protocol) on your switch settings.  On Cisco switches, look for EtherChannels under Configuration.  Select your 2 ports and enable LACP.  Other switches are similar.

 

One other thing, make sure that neither of your switches is used for anything else like Remote Management.  Often one of the NICs is configured for something else in the BIOS, and even if you make it part of a Team, it won't be active (it won't break the Team, it just never gets used).  Go in to Adapter Properties, and look at the Team status once it's up, make sure they both show an Active status.  If on is on Standby, go into BIOS or other POST settings and disable any other NIC usage.