Which statement about the Overlay Transport Virtualization protocol is true?
A.
It is IP-based functionality that provides Layer 3 extension over any transport.
B.
The data plane exchanges MAC reachability info.
C.
The control plane protocol is IS-IS.
D.
It supports FCoE.
B is not correct, and C is correct, because:
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html
‘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.’
‘The routing protocol used to implement the OTV control plane is IS-IS. It was selected because it is a standard-based protocol, originally designed with the capability of carrying MAC address information in the TLV. In the rest of this document, the control plane protocol will be generically called “OTV protocol”‘
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Answer: C (like Keith said)
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