Examkin

Question

Difficulty: MediumCisco DNA Center Enabled Device Management

A network engineer initiates a Discovery job in Cisco DNA Center using an IP address range to add existing enterprise switches into the controller's inventory. After establishing initial reachability and credential authentication, Cisco DNA Center collects neighbor data from Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP). How does Cisco DNA Center utilize this neighbor protocol data during the management workflow?

  1. To map link connections and dynamically build the physical network topology viewAnswer
  2. B
    To install local host agents required for executing Ansible automation scripts
  3. C
    To replace TACACS+ authorization rules during device administrative login
  4. D
    To translate REST HTTP GET requests into HTTP POST requests for database updates

Answer

Cisco DNA Center uses CDP and LLDP neighbor data to map physical inter-device connections and construct the network topology view.
During the discovery phase, Cisco DNA Center queries discovered network devices via SNMP and CLI/SSH to retrieve their CDP and LLDP neighbor tables. By stitching together the neighbor relationships reported by each device, Cisco DNA Center automatically calculates link adjacencies and constructs the complete physical network topology map.

Step-by-Step Solution

1
Analyze the role of Layer 2 discovery protocols (CDP/LLDP) in controller-based networking.
CDP and LLDP allow network devices to advertise identity, capabilities, and connected local/remote port pairs to directly connected neighbors.
Understanding what data Layer 2 discovery protocols provide helps identify how a central controller consumes this information.
2
Evaluate how Cisco DNA Center uses collected discovery data during inventory creation.
Once SNMP/SSH access is validated, Cisco DNA Center reads the neighbor tables of discovered devices to calculate adjacencies.
This automated parsing eliminates manual topology mapping and builds a dynamic, interactive map of the network infrastructure.

Key Concept

Cisco DNA Center Topology Mapping via Discovery Protocols
Rate this question

Topics

Cisco DNA Center Enabled Device Management

More questions from this topic