Which statement about scalability in OTV is true?
A. The control plane avoids flooding by passing MAC reachability information.
B. IP-based functionality provides Layer 3 extension over any transport.
C. Any encapsulation overhead is avoided by using IS-IS.
D. Unknown unicasts are handled by the authoritative edge device.
OTV introduces the concept of “MAC routing,” which means a control plane protocol is used to exchange MAC reachability information between network devices, providing LAN extension functionality. IS-IS has been modified to supply that functionality for OTV.
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