350-601 · Question #38
Overlay Transport Virtualization (OTV) provides an overlay that enables Layer 2 connectivity between separate Layer 2 domains, while keeping these domains independent and preserving the fault…
The correct answer is A. Adjacency Server is required when OTV is deployed with unicast-only transport. C. Each OTV device wishing to join a specific OTV logical overlay needs to first register with the. The OTV Adjacency Server is crucial for facilitating edge device discovery and communication when OTV is configured with unicast-only transport, requiring each OTV device to register with it.
Question
Overlay Transport Virtualization (OTV) provides an overlay that enables Layer 2 connectivity between separate Layer 2 domains, while keeping these domains independent and preserving the fault isolation, resiliency, and load-balancing benefits of an IP-based interconnection. Which statements are true about OTV Adjacency Server? (Choose two.)
Options
- AAdjacency Server is required when OTV is deployed with unicast-only transport.
- BAdjacency Server is required when OTV is deployed with multicast-enabled transport.
- CEach OTV device wishing to join a specific OTV logical overlay needs to first register with the
- DEach OTV device trying to join a specific OTV logical overlay needs to be configured as an
How the community answered
(17 responses)- A94% (16)
- B6% (1)
Why each option
The OTV Adjacency Server is crucial for facilitating edge device discovery and communication when OTV is configured with unicast-only transport, requiring each OTV device to register with it.
When OTV is configured to use unicast-only transport, the Adjacency Server acts as a registration point for OTV Edge Devices, enabling them to discover each other and exchange MAC reachability information without relying on multicast for control plane messaging.
The Adjacency Server is specifically designed for unicast-only transport deployments and is not required when OTV is deployed with multicast-enabled transport, as multicast provides the necessary discovery and control plane communication.
OTV devices that are part of a specific OTV logical overlay must register with the Adjacency Server, allowing the server to maintain a list of all active OTV devices and distribute this information to facilitate overlay connectivity.
Only a designated device or a cluster of devices typically functions as the Adjacency Server, not every OTV device wishing to join the overlay.
Concept tested: OTV Adjacency Server function in unicast transport
Source: https://www.cisco.com/c/en/us/products/collateral/switches/nexus-7000-series-switches/guide_c07-688126.html
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