NIC Teaming Configuration in Server 2012 r2.
NIC Teaming, also known as load balancing and failover (LBFO), allows multiple network adapters on a computer to be placed into a team for the following purposes.
Bandwidth aggregation.
Traffic failover to prevent connectivity loss in the event of a network component failure.
This feature has been a requirement for independent hardware vendors (IHVs) to enter the server network adapter market, but until now NIC Teaming has not been included in Windows Server operating systems.