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OTV is a MAC-in-IP method that extends Layer 2 connectivity across a transport network infrastructure. Which three options are high-availability features? (Choose three.)
A. OTV fast convergence
B. fast failure detection
C. added the track-adjacency-nexthop command to enable overlay route tracking
D. added support for unicast cores using an adjacency server
E. added support for Ipv6 unicast forwarding and multicast flooding across the OTV overlay
Correct Answer: ABE
Explanation/Reference:
Explanation:
The overlay network maps MAC addresses to IP addresses of the edge devices. Once OTV identifies the correct edge device to send a Layer 2 frame to, OTV encapsulates the frame and sends the resulting IP packet using the transport network routing protocols.
OTV supports one or more separate overlay networks running Ipv4 or Ipv6 unicast forwarding or multicast flooding. Each overlay network supports one or more VLANs.
Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/wan_otv/configuration/xe-3s/asr1000/wan-otv-xe-3s-asr1000-book/wan-otvconfg.html#GUID-585B852F-BB08-4937-9601-E425DE4A33B6
