CCNP Data Center Question of the Week: Scalability in OTV

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.

Reveal Answer

Answer: A.

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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CCNP Data Center Question of the Week Series

• CCNP Data Center Question of the Week: Cisco Technology
• CCNP Data Center Question of the Week: Aggregation Layer
• CCNP Data Center Question of the Week: Connecting Multiple Data Centers
• CCNP Data Center Question of the Week: Cisco FabricPath
• CCNP Data Center Question of the Week: Scalability in OTV

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