NIC teaming is a new feature in Windows
Server 2012 that enables administrators to combine the bandwidth of multiple
network interface adapters, providing increased performance and fault
tolerance. Virtualization enables administrators to separate vital network
functions on different systems without having to purchase a separate physical
computer for each one. However, one of the drawbacks of this practice is that a
single server hosting multiple VMs is still a single point of failure for all
of them. A single malfunctioning network adapter, a faulty switch, or even an
unplugged cable can bring down a host server and all its VMs.