Spanning Layer 2 across geographically separate data centers is a key consideration for current data center designs. Which is the name of the NX-OS technology that facilitates MAC in IP transport for Layer 2 VLANs across any IP network?
A. Overlay Transport Virtualization (OTV)
B. Virtual Private LAN Services (VPLS)
C. Generic Routing Encapsulation (GRE)
D. Q-in-Q tunneling
