To build upon my recent post for virtualization networking, Harold Wong, explains the details behind NIC Teaming, as well as some PowerShell cmdlets on the subject.  Take a look here:

http://blogs.technet.com/b/haroldwong/archive/2013/03/15/server-virtualization-series-networking-nic-teaming-part-10-of-20-by-harold-wong.aspx