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Overlay Transport Virtualization (OTV) uses the Authoritative Edge Device (AED) to perform which tasks?
A. The AED is responsible for sending all unicast traffic in a site, while either node in a site can transmit multicast and broadcast.
B. The AED is responsible for load balancing all traffic for all VLANs across the transport network.
C. The AED is responsible for handling all unicast, broadcast, and multicast traffic for a given VLAN within a site.
D. The AED is responsible for MAC address dispute contention for a given VLAN.
Correct Answer: C
Explanation/Reference:
Explanation:
The OTV control plane uses IS-IS Link State Packets (LSPs) to propagate MAC address to IP address mappings to all edge devices in the overly network. These address mappings contain the MAC address, VLAN ID, and associated IP address of the edge device that the MAC address is reachable from.
The authoritative edge device uses IGMP snooping to learn all multicast MAC addresses in the local site. OTV includes these MAC addresses in a special group-membership LSP (GM-LSP) that is sent to remote edge devices on the overlay network.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/OTV/config_guide/b_Cisco_Nexus_7000_Series_NX-OS_OTV_Configuration_Guide/b_Cisco_Nexus_7000_Series_NX-OS_OTV_Configuration_Guide_chapter_0100.html